International Atomic Energy Agency

INDC(NDS)-141
Distr. G

o
00
I

I N

DC

INTERNATIONAL

NUCLEAR DATA COMMITTEE

Report on the
SIXTH IAEA CONSULTANTS' MEETING OF
NUCLEAR REACTION DATA CENTERS
Vienna International Centre,o

3 - 7 May 1982ktoIncluding
m
3
01

10
00

ro

the 17th FOUR-CENTERS MEETING
o f THE NEUTRON DATA CENTERS
andt h e 7 t h MEETING ON CHARGED PARTICLE NUCLEAR DATA COMPILATION

December 1982

IAEA NUCLEAR DATA SECTION. WAGRAMERSTRASSE 5, A-1400 VIENNAReproduced by the IAEA in Austria
December 1982

INDC(NDS)-1*1
Distr. G

Report on the
SIXTH IAEA CONSULTANTS1 MEETING OF
NUCLEAR REACTION DATA CENTERS
Vienna International Centre,
3 - 7 May 1982
Includingthe 17th FOUR-CENTERS MEETING
of THE NEUTRON DATA CENTERS
andthe 7th MEETING ON CHARGED PARTICLE NUCLEAR DATA COMPILATION

Abstract
This report summarizes the 1982 coordination meeting of the national andregional nuclear reaction data centers, convened by the IAEA at aninterval of about 1 1/2 years. The main topics are- the international exchange of nuclear reaction data by means of the"EXFOR" system,- the further development of this system,- the sharing of the workload for speedy and reliable datacompilation,- the exchange of specialized and evaluated data libraries,- the role of ENDF/B as an international format for the exchangeof evaluated datawith the goal of rendering data center services to data users, by meansof computer retrievals and printed materials.

Edited by
M. Lammer
0. Schwerer

- 1 -

Table of Contents
page
Glossary of Abbreviations
The Nuclear Reaction Data Centers
List of Participants
AgendaMinutesStatement on charged-particle nuclear data
List of Conclusions and Recommendations
Agreed Rules for the Inclusion of Detailed Error Informationin EXFOR
List of Actions

2
4
6
7
9
18
19
23
26

Appendices:
1. List of papers presented at the meeting29
2. NNDC Status Report31
3. NEA-DB Committee Progress Report36
4. NDS Status Report
43
5. CJD Progress Report60
6. CAJaD Progress Report62
7. Activity Report from CDFE
64
8. Last KACHAPAG-memo
66
9. FIZ Status Report68
10. EXFOR statistics (H. D. Lemmel, 0. Schwerer)69
11. Importance for compilation of selected CPND andPhotonuclear Data {K. Okamoto)75
12. Letter to NDS by L. Adamski (IBJ, Poland)78
13. EXFOR Computation Format-Status Report.(D.E. Cullen, 0. Schwerer) 81
14. CSISRS Users Manual
87
15. NNDC Products and Services140
16. NNDC Role in ENDF (S. Pearlstein)
145
17. Compilation of the Joint Evaluated File (NEA-DB)
146
18. Example of high energy neutron cross sections152

- 2 GLOSSARY OF ABBREVIATIONSBNLBrookhaven National Laboratory, Upton, N.Y., USA

CAJaD

Center for Nuclear Structure and Reaction Data, Kurchatov
Institute, Moscow, USSR

CDFE

Centr Dannykh Fotojad. Eksp., Moscow State University, USSR

CINDA

A specialized bibliography and data index on neutron nuclear
data operated jointly by NNDC, NEA-DB, NDS and CJD

CJD

USSR Nuclear Data Center at F.E.I., Obninsk, USSR

CPND

Charged-particle nuclear reaction data

CRP

Coordinated Research Programme of the IAEA Nuclear Data
Section

CSISRS

Cross-Section Information Storage and Retrieval System, the
EXFOR-compatible internal system of NNDC

DOE

US Department of Energy

DOE-NDC

Nuclear Data Committee of DOE

ENDF

US Evaluated Nuclear Data File

ENSDF

Evaluated Nuclear Structure Data File

EXFOR

Format for the international exchange of nuclear reaction
data

FIZ

Information Center of the Fed. Rep. of Germany for energy,
physics, mathematics, Karlsruhe, Fed. Rep. of Germany

IAEA

International Atomic Energy Agency

INDC

International Nuclear Data Committee

INDL

The IAEA Nuclear Data Library for evaluated neutron reaction
data

INIS

International Nuclear Information System

IRDF

The International Reactor Dosimetry File, maintained by
the IAEA/NDS

JEF

The Joint Evaluated File of neutron data, a collaborationof European NEA member countries and JapanKACHAPAG

Charged particle nuclear data group, Karlsruhe, Fed. Rep. of
Germany- 3 LANL

Los Alamos National Laboratory, Los Alamos, N.M., USA

LEXFOR

Part of the EXFOR manual containing physics information
for compilers

LMFBR

Liquid-Metal Fast Breeder Reactor

NDS

IAEA Nuclear Data Section, Vienna, Austria

NEA

Nuclear Energy Agency of the OECD, Paris, France

NEACRP

Nuclear Energy Agency Committee on Reactor Physics

NEA-DBNEA Data Bank, Saclay, France

NEANDC

Nuclear Data Committee of the OECD Nuclear Energy Agency

NEUDADA

Neutron Data Direct Access. Earlier data file of NEA,
now included in EXFOR.

NND

Neutron Nuclear Data

NNDC

National Nuclear Data Center, Brookhaven National
Laboratory, USA

NRDC

the Nuclear Reaction Data Centers

NSDD

Nuclear structure and decay data

OECD

Organization for Economic Cooperation and Development,
Paris, France

ORNL

Oak Ridge National Laboratory, Oak Ridge, Tenn., USA

PhDC

Photonuclear Data Center, Washington, USA

SGIP

Study Group for Information Processing, Sapporo, JapanSOKRATORUSSR evaluated neutron data library (and format), now
included in INDL

SR

Status report of centers to this meeting

TP

Topical paper presented at this meeting

TRANS

Name of transmission tapes for data exchange in the EXFOR
systemWP

Working paper presented at this meeting

WRENDA

World Request List for Nuclear Data- 4 The Nuclear Reaction Data Centers
The following data centres participate in the international dataexchange by means of the EXFOR system developed and maintained under thecoordination of the IAEA Nuclear Data Section:
NDS
NNDC
NEA-DBCJD
KACHAPAG
CAJaD
CDFE
PhDC
FIZ
SGIP

- IAEA Nuclear Data Section- US National Nuclear Data Center, Brookhaven, USA- OECD/NEA Nuclear Data Bank, Saclay, France- USSR Centr po Jadernym Dannym (s Nuclear Data
Center), Obninsk, USSR
- Karlsruhe Charged Particle Group, Karlsruhe, FRG*)- USSR Centr po Dannym o Stroenii Atomnogo Jadra i
Jadernykh Reakcikh (= Nuclear Structure and Nuclear
Reaction Data Center), Moscow, USSR
- Centr Dannykh Fotojad. Eksp. (= Center for Experimental Photonuclear Data), Moscow, USSR
- Photonuclear Data Center, Washington, USA- Fachinformationszentrum Karlsruhe, FRG- Study Group for Information Processing, Sapporo, Japan(expected to join)

These data centers cooperate on the following projects:
1. Neutron Nuclear Datal.a Bibliography and Data Index "CINDA":
Input prepared by NEA-DB, NNDC, NDS, CJD
Handbooks published by IAEA
l.b Experimental data exchanged in EXFOR format:
Input prepared by NNDC, NEA-DB,"RUST CJD
l.c Data Handbooks based on EXFOR published by NNDC
l.d Evaluated data exchanged in ENDF/B format:
NNDC, NEA-DB, NDS, CJD and others
l.e Computer retrieval services upon request of customers:
NNDC, NEA-DB, NDS, CJD
2. Charged Particle Nuclear Data (including heavy-ion reaction data)
2.a Bibliography and Data Index published by NNDC*)
2.b Numerical data exchanged in EXFOR format:
Input prepared by KACHAPAG*), CAJaD, NDS, NNDC; SGIP
2.c Data Handbooks based on EXFOR published by FIZ/KACHAPAG**)
2.d Computer retrieval services upon request of customers:***)
NNDC, NEA-DB, NDS, CAJaD*) Discontinued by the end of 1981**) To be discontinued in 1982***) Retrievals will be more and more incomplete due to lack of compilation of newly measured data- 5 3. Photonuclear Data
3.a Numerical data exchanged in EXFOR format:
Input prepared by CDFE, NNDC(PhDC), NDS
3.b

Bibliography published by CDFE

3.c Computer retrieval services upon request of customers:
NNDC, NEA-DB, NDS, CDFE

- 6 -

LIST OF PARTICIPANTS

NNDC
NEA-DBNDS

V. McLane
S. Pearlstein (centre head)
C. Nordborg
N. Tubbs (centre head)
D. Cullen (part-time, chairman for topical session)
M. Lammer (meeting secretary)
H. D. Lemmel (chairman for technical sessions)P. K. McLaughlin (part-time)
K. Okamoto
M. Okumu (part-time)
V. Pronyaev (part-time)«3. J. Schmidt (centre head, chairman for general sessions)
0. Schwerer (meeting secretary)
M. Seits (part-time)

CJD

V. N. Manokhin (centre head)

CAJaD

F. E. Chukreev (centre head)
G. M. Zhuravleva

FI2

H. Behrens (Wednesday)

- 7-

AGENDA
Introduction
1.

Introduction of meeting participants, election of chairmen

2.

Opening of the meeting3.

Adoption of Agenda

4.

Brief status reports of the Centers

5.

Review of actions from previous meetingTechnical discussions
11.

CINDA

12.

WRENDA

13.

EXFOR: matters relevant to all nuclear reaction data

14.

EXFOR: matters relevant to neutron data only

15.

EXFOR: use of EXFOR by data evaluators; error analysis,
covariances16.

charged-particle nuclear data

17.

photonuclear data

"Policy" discussions
21.

Brief status report by H. Behrens, Karlsruhe

22.

How to avoid further losses in centers' manpower or in thenumber of cooperating data centers

23.

How to continue the work of KACHAPAG >24.

Can more formal agreements help to find funding and support
for the existing and/or additional centers within theinternational data centers network*

25.

Miscellaneous:Commitments and cooperation of centers,
priorities, data needs, center scope, etc.

- 8 26.

Customer services, publications, etc.

27.

Meetings

28.

Date and place of next NRDC Meeting

Topical session: ENDF/B as international format
31.

Presentation of topical papers

32.

Discussion on future cooperation

Final session
41.

Remaining items from agenda above (if any)

42.

Actions, conclusions and recommendations

- 9 MINUTES
Note:

Only selected papers submitted to this meeting are includedin this document and referred to by the appendix in which
they appear. All papers submitted are identified in theminutes by an abbreviation under which they can be found in
the list given in Appendix 1.
The Conclusions, Recommendations and Actions are given in
separate sections following the minutes.

INTRODUCTION
Agenda Item 1. Introduction of Meeting Participants, Election of Chairmen•3.J. Schmidt introduced the meeting participants to Prof. Frolov,
Director of the Division of Research and Laboratories.
The following
participants:

sessionchairmenwereelectedbythemeeting

J.J. Schmidt for the general sessions
H.D. Lemmel for the technical sessions
D.E. Cuilen for the topical discussion on ENDF/B
Agenda Item 2. Opening of the Meeting
The meeting was opened by Prof. M. Zifferero, Deputy Director Generalof the IAEA's Department of Research and Isotopes. He congratulated theparticipants for the successful data exchange system developed since thebeginning of the IAEA Nuclear Data Section in 1964, being an excellent
example of international cooperation.
He mentioned the stronger
participation of developing Member States in the Agency's nuclear data
programme and the enhanced transfer of nuclear data information to thoseStates as a consequence of changing priorities and requirements as
defined by the International Nuclear Data Committee. Nuclear data needs
as well as data determination activities by experiment, theory andevaluation continue at rather constant level in developed countries, but
at increasing level in developing countries.
Prof. Zifferero pointed out that the Agency's nuclear data programmeemphasizes the development of reference evaluated nuclear data files for
specific applications, and consequently an important part of this meeting
will be devoted to the development of international evaluated nuclear
data files in ENDF/B format. Prof. Zifferero expressed his wishes for a
succesful meeting and an enjoyable stay in Vienna.

- 10 Agenda Item 3. Adoption of Agenda
The tentative agenda was discussed and adopted (see page 7 ) . However,it was decided to combine agenda items 16, 17, 21 and 23 into a sessionon CPND and photonuclear data at the time when H. Behrens is present. At
the same time the heads of data centres meet for "policy" discussions.
Agenda items 27. and 28. were deferred to the final session.
Agenda Item 4. Status reports of the Centres
S. Pearl stein presented the status report of NNDC (see Appendix 2 ) .
Regarding EKe BTscontinuation of the bibliography of integral charged
particle nuclear data he pointed out that the "Reaction List" of Recent
References could be used or enhanced in some way as a continuation. The
planning for ENDF/B-VI is continuing, but release cannot be expected
before 1985. The work on the "charged particle barn-book" is continuing,
details have still to be fixed.
N. Tubbs presented the status report of NEA Data Bank (see Appendix
3). The main new activity of NEA-DB is the development of the new Joint
Evaluated File (JEF) of neutron data.
V.N. Manokhin presented the status report of CJD (see Appendix 5 ) .
Since July 1980 TRANS tapes 4040-4043 were transmitted to other centres.
However, TRANS tapes 4042 and 4043 had not yet arrived at N0S by the timeof the meeting. Retransmission was requested (see Actions 1,2*)).
F.E. Chukreev presented the status report of CAJaD (see Appendix 6 ) .
Since August 1980 tapes A005 and A007 were transmitted. Emphasis wasgiven to the compilation of (p,n) reactions in accordance with action 14(33) of the fifth NRDC meeting. F. E. Chukreev asked whether CPND from
US compiled by CAJaD could be disseminated.
S. Pearl stein replied that there is no restriction for CPND.
F.E. Chukreev presented also the report of the CDFE centre (seeAppendix 7 ) . Th"e TRANS tape M002 was sent to NDS but not received.
Retransmission was requested (see Action 4).*)
J.J. Schmidt and H.D. Lemmel presented the status report of NDS (seeAppendix 4~]L THe main iTew activity of NDS as data centre is theprocessing of ENDF/B formatted data and the development of the IAEA
Evaluated Neutron Data Library (INDL), with subfiles for Actinides(INDL/A) and for dosimetry (IRDF-82). Emphasis is also given to the fast
increasing number of requests and the increasing contacts to the People's
Republic of China.
Besides the data centre activities, the main activity is the"Interregional Project for the Training of Nuclear Scientists in
Developing Countries, Using the Expertise Available in the Nuclear Data
Field".
D.E. Cuilen reported on evaluated data compilation and processing at
NDS. He pointed out that during the comparisons mistakes were found inmany processing codes.

*) TRANS-4042 and 4043 arrived at NDS in June, TRANS-M002 in August 1982.

- 11 N. Jubbs remarked that codes should only be distributed to requestors
by NEA-DB to ensure that they receive the last, checked version.
Agenda Item 5. Review of actions from previous NRDC meeting
The actions of the last NRDC meeting were reviewed.
actions were found pending.

No important

TECHNICAL DISCUSSIONSAgenda Item 11. CINDA
H.D. Lemmel reported on the cost and price development of CINDA andits possible implications for the publication schedule.
This topic was discussed by the meeting. Several actions were
formulated to find out alternatives to the present publication schedule(Actions 6-9).
A working paper on the CINDA book production and the coding ofconferences was presented by M. Lammer (WP2) and discussed by the meeting(Actions 10, 11, Conclusions 2,3).
Agenda Item 12. WRENDA
Until a successor for N. DayDay will join NDS, M. Lammer will proceed
in the initiation of WRENDA 83/84 (Conclusion 1): in July 1982 country
retrievals will be produced and sent out (see Appendix 4 for schedule of
WRENDA update cycle).
J.J. Schmidt pointed out that NDS is not authorized to do any
selection on WRENDA request entries submitted.
The meeting expressed continuous concern of the data centres about
the contents and usefulness of WRENDA and the actual review of WRENDA
requests by the requestors and national bodies. Efforts should be madetowards improved verification of requests.
Agenda Item 13. EXFOR matters relevant to all nuclear reaction data
Starting from a working paper presented by 0. Schwerer (WP13) the
meeting surveyed mistakes that occur in EXFOR TRANS tapes and theirimplications on EXFOR rules (Conclusions 4-14, Action 12).
The meeting accepted the introduction of Kerma factors by NDS (MemoCP-D/106 p.2) for use in the EXFOR-V series (Conclusion lb).
Following the suggestion in memo CP-D/105, the proposal of memo
CP-A/29 to change the minimum unit for retransmissions to whole entries
was discussed at the meeting. It was decided that this should not be a
general rule for EXFOR. However, NDS offered to temporarily supply CJD
and CAJaD with updated complete entries until these centres can accept
retransmissions of altered subentries.

- 12 The meeting agreed that transmissions in ISO-QUANT formalism will beterminated by the end of 1982 (Action 14)'. However, conversion of themaster files is left to the centres and bilateral arrangements.
It was emphasized that changes in EXFOR entries should always be
documented under HISTORY or STATUS when retransmitted.
It was requested that NDS changes the date on the TRANS record ofcorrected tapes from CJD and CAJaD (Action 15Ti
The proposed LEXFOR entry on the code "INT" (Memo CP-D/104) was
discussed and adopted with one addition (Conclusion 16).
The meeting emphasized that redundant codes in the REACTION string
should be avoided (Conclusion 17).
Agenda Item 14.
Agenda Item 15.

EXFOR matters relevant to neutron data only, andUse of EXFOR by Data Evaluators; Error Anafysis,
Covariances

K. Okamoto presented a paper on a completeness check of EXFOR and
CINDA for some important dosimetry reactions (Memo 4C-3/255). Someinconsistencies between CINDA data flags and EXFOR were observed whencompiling an evaluation of these reactions in the EXFOR-V series. In
order to f a c i l i t a t e the necessary corrections, the meeting asked NEA-DB
to retrieve from CINDA all cases where such inconsistencies occur(Actions 19,20).
The meeting agreed that the conversion of the 80000 series should bestarted by identifying duplications with Area 3 entries which can
immediately be deleted (Actions 16, 17).
H.D. Lemmel presented a l e t t e r by Dr. L. Adamski (Swierk, Poland,
WP11 see Appendix 12) and asked all centres to correct the mistakes in
EXFOR entries mentioned in this l e t t e r (Action 18).
The proposals of NNDC regarding the repetition of the data-heading
keywork MASS (Memo CP-C/92) and new headings for energy resolution (MemoCP-C/91) were adopted (Conclusions 18, 19).
The meeting adopted (Conclusion 20) NNDC's proposal on Polarization(Memo CP-C/93) and asked NDS to reword the relevant codes in Diet. 36(Action 21). In case of questions about the dictionary update or the
LEXrOR entry NDS should contact V. McLane. If entries containing thecode POL,,ASY (which is to be deleted) are found by NDS retransmission
will be requested * ) .
NNDC suggested a cleanup of the Dictionaries 3 and 7. In Dictionary
3 (Institutes) a uniform style of the expansions and English translationsof institute names is aimed at (Conclusions 21, 22, Action 22). For
Dictionary 7 (conferences and books) an additional short expansion notexceeding one line is introduced (Conclusion 23).

*)

Editor's note: EXFOR entries 10163, 20989 and 21312 contain the code
POL,,ASY. Retransmission is requested.

- 13 H.D. Lemmel presented a paper on "Statistics of EXFOR" (WP3, see
Appendix 10) showing the development of EXFOR compilation. He noted thatcertainly no overall decrease in nuclear data activities can be observed.
The completeness of EXFOR compilation is satisfactory up to 1977;
however, from experimental year 1978 onwards, transmissions of Area 4
data have decreased drastically. The meeting considered it importantthat CJD catches up with compilation of these experimental years.
The meeting discussed NNDC's proposal on error specifications (MemoCP-C/81). It was decided that the keyword COVARIANCE is introduced(Conclusion 24) but information should be given in free text only. The
proposal was adopted with some modifications (see Conclusion 26 and page23).
The meeting agreed that the restriction to 18 columns for DATA andCOMMON sections remains in effect ( Conclusion 25).
CPND AND PHOTONUCLEAR DATA
Agenda Item 16.
Agenda Item 17.
Agenda Item 21.
Agenda Item 23.

Charged-Particle Nuclear Data,
Photonuclear Data'
Brief Status Report by H. Behrens, Karlsruhe, andHow to Continue the Work of K A C H A P A G (partially)

H. Behrens introduced the status report of FIZ Karlsruhe (seeAppendix 9) explaining the reasons for the discontinuation of CPND
compilation at KACHAPAG (see Appendix 8). However, three more volumes ofthe series "Physics Data" No. 15 and one index will still be published.
K. Okamoto introduced working papers on the importance of selected
CPND and photonuclear data (WP 10, see Appendix 11) and on the results ofquestionnaires concernincpthe nuclear data needs for medical applications(WP 14 + 17). In summary (WP 14): out of a total of 44 answers, 17
stated that they were not satisfied with the currently available data for
medical radionuclide productions. Out of these 17, 11 are in need of
excitation functions, 6 of yield data. 22 of the 44 answers had nocomment on this, and only 5 stated that they were satisfied with theavailable data. He concluded that the need for compilation of CPND for
medical applications is shown.
F.E. Chukreev commented on stopping power
discrepancies in particular in experimental data.

data,

pointing

out

Concerning the question whether CAJaD could take over part of
KACHAPAG's compilation, he explained that the scope of CAJaD's
compilation depends on requests from USSR and that no increase inmanpower is expected. Perhaps another Soviet group could be found.
CAJaD will look into the possibility of maintaining the CPND master file.
H.D. Lernmel offered that for the time being NDS would take over the
maintenance of the master file and checking of CAJaD TRANS tapes. NDS
will also try to find other groups to contribute to the compilation
effort.

- 14 The meeting agreed on a Statement on charged-particle nuclear datasummarizing the discussions which was added to tTie Center Heads'
Statement on CPND (see page 18).
Concerning photonuclear data, F.E. Chukreev informed the meeting that
the Moscow University Centre (CDFE) compiles primarily data from USSR
institutes. The future scope will depend on available manpower and therequests from USSR. Apart from its compilation activity, CDFE is also
one of the main producers of photonuclear data.
H.D. Lernmel appreciated that CDFE has taken over the EXFOR format.
V. McLane reported that, in spite of repeated requests, the Berman
Library of photonuclear data could not be obtained. Whatever WTTT Be"
obtained in the future will be forwarded to CAOaD. At this time only the
1978 version is available (to all centres).
It was agreed that NDS will try to obtain the most recent version of
the Berman library (Action 23).
"POLICY" DISCUSSIONSThe heads of the data centers met in a separate session to discuss policy
matters (Agenda Items 22. - 25.). Part of the conclusions is summerizedelsewhere in the minutes under the appropriate items. Re charged particle
data compilation: see the Statement on page 18.
Agenda Item 26.

Customer Services

Working papers on the status of the NDS EXFOR Computation format, a
new CSISRS Users Manual and NNDC products and services were presented tothe meeting (WP 16, 19, 20; see Appendices 13, 14, 15; Action 26).
Topical Session; ENDF/B AS INTERNATIONAL FORMAT
Agenda Item 31. Presentation of Topical Papers
Agenda Item 32. Discussion on Future Cooperation
The meeting decided to draft the conclusions on ENDF/B as
international format after the discussions. They are, therefore,
generally not referred to individually in the following summary.
S. Pearlstein gave an introduction to the role of NNDC in ENDF (TP3,AppencTTx Wf.
He announced Revision 2 of ENDF/B-V for June 1982,
including a re-evaluation of Li—7 and several elemental evaluations basedon evaluations performed for their isotopes. For ENDF/B-VI, changes informat will probably concentrate on the planned inclusion of CPND, while
no major changes in the format for neutron data are anticipated.
The need for new reaction types (MT numbers) will probably arise forfission spectra - where LANL plans to introduce a new parametrization and for the energy range above 20 MeV. Requests for such extensions
should be directed to S. Pearlstein.

- 15 NDS w i l l review the coding in ENDF/B of reactions
metastable states and send comments to NNDC (Action 27).

leadingtoIn reply to questions from N. Tubbs and H.D. Lemmel, S. Pearl steingave the following information:
Evaluated CPND might f i r s t be stored in EXFOR format and later betranslated automatically into the new format.
NNDC has no conversion program from ENDF/B-V tosince the two formats are largely compatible.

ENDF/B-IV

formatENDF/A is a collection of various f i l e s in different formats. Newf i l e s received are advertised in NNDC's newsletter, but there are
only few requests for those data.
S. Pearl stein asked NDS to continue to involve participants from US
i n the Actinides CRP (INDL/A f i l e ) and similar projects.
In order toascertain the completeness of the INDL/A f i l e as far as user requirements
are concerned, Bob Schenter should be asked to identify the data types
needed for actinides evaluations to be used in burn-up calculations.
V. Manokhin asked what should be done when deficiencies of anevaluation were found, in particular, i f theoretical models used areinappropriate. He himself suggested that in order to find the reason of
discrepancies, also the optical-model codes used for the evaluations
should be compared.
D.E. Cullen mentioned the review procedure by another evaluator
foreseen in ENDF/B, which could also be applied to other evaluated f i l e s .
S. Pearl stein mentioned thecodes organized by NEA-DB.

international

exerciseforcomparing

V. Manokhin said that s u f f i c i e n t information on models and parameters
used should be given to allow judgement of the evaluation and possible
reasons for discrepancies.
N. Tubbs summarized the experience of NEA-DB with the comparison ofcodes"! He said that in a rather simple level density exercise, only twocodes out of eight did what the authors thought they do. The existing
exercise should be extended and no parallel program should be started.
V.Manokhin said that i f INDL/A is intended to develop from acollection of evaluations to a recommended f i l e , a working group similar
to CSEWG would be needed which would also have to agree on common
evaluation methods.
N. Tubbs and C. Nordberg presented a paper on the compilation of the
Joint Evaluated File (JEF) (TP4, Appendix 17). So far 27 nuclides havebeen compiled in ENDF/B-V format. All data are given in point-wise form
without the use of resonance parameters, but in a l a t e r stage a second
f i l e giving resonance parameters might be created.

- 16 Version 1 of the library (JEF-1) will be released at the end of 1982,
JEF-2 is foreseen for the end of 1985. The file will be available tomember countries of the NEA-DB.
V. Manokhin gave a summary of the programmes used in CJD in
connection with the ENDF/B format (see attachment to CJD progress report,
Appendix 5). He further presented problems in the use of the ENDF/B
format for evaluations covering the resolved and unresolved resonanceregion, e.g. the different energy limits for s- and p-wave resonances.
These and other problem areas were further discussed by the meetingand some solutions suggested. However, the meeting agreed that changes
for the ENDF/B-V format should be kept to a minimum.
D.E. Cuilen presented the NDS project on verification of nuclear
cross section processing codes (TP1). He explained that in view of thediscrepancies found in the processing accuracy of codes when processing
the same input data, NDS has started a step-by-step verification
procedure with the participation of a number of laboratories in the US
and Europe. Another project, involving a selected group of users, has
the goal of creating a new version of the ENDF/B Pre-processing codesthat is compatible with use on the widest variety of computers possible.
V. Pronyaev reported on USSR evaluations in ENDF/B-V format andconversions of the SOKRATOR library to this format done at NDS. In
particular he mentioned problems in the format conversion caused by thelimitation of the number of competitive widths in the unresolved
resonance region to 1 in ENDF/B, e.g. in the (n, f)-process.
0. Schwerer reported on problems encountered in the conversion ofsome Austrian evaluations related to spectra of secondary charged
particles and some special partial reactions (TP2).
K. Okamoto reported on evaluations compiled at NDS in EXFOR format(EXFOR-V). A"bove 20 MeV, the large variety of reactions createdproblems. It was suggested to ask the users of such data what kind ofpresentation and degree of detail was needed. Also the ENDF/C format
could be useful for such data. He showed an example of high energy
neutron cross sections: the large variety of reactions with thresholds
around 20 MeV and above makes it impossible to compile these data in
ENDF/B (TP5, Appendix 18).
He also discussed the importance of (n,t) reactions in the energy
range near 20 MeV where evaluated data files are deficient (see the graphof Al-27(n,t) reaction in WP16, Appendix 13).
V. Pronyaev summarized problems with the covariance files in IRDF.
He explained problems with the cross section interpolation in evaluations
where the points of the excitation function actually represent averagecross sections for energy groups of varying widths.
D.E. Cull en said that different versions of the same computer codes
related to ENDF/B are being used in different laboratories. Some ways
for a common development of codes should be found.
S. Pearl stein suggested that information about such codes should beexchanged through a newsletter (see Conclusion 35).

- 17 As a result of the discussion, conclusions 27 through 35 on ENDF/B as
international format as well as Actions 28 and 29 were formulated.
FINAL SESSION
Agenda Item 42.

Actions, Conclusions and Recommendations

The list of conclusions, recommendations and actions resulting from themeeting were reviewed and corrected by the participants.
Agenda Item 41.
J.J. Sc hmi dt
discussions.

Remaining Items from the Agenda
briefly

informed the meeting

about the centre

heads

V. MeLane added that a reduction of EXFOR compilation to priority data
may be possible in case of further budget restrictions.
Agenda Item 28.

Date and Place of next NRDC Meeting

The next NRDC Meeting was announced to be held in Moscow, adjacent to
the Kiev Conference (September 1983) with an excursion to Obninsk.
Agenda Item 27. Meetings
J.J. Schmidt summarized the planned meetings.
to the other centres (Action 32).
J.J. Schmidt closed the meeting.

NDS will send a list

- 18 -

6th IAEA Consultants' Meeting of the
Nuclear Reaction Data Centers*)
IAEA, Vienna, 3-7 May 1982

Statement on charged-particle nuclear data
The Heads of the Nuclear Reaction Data Centers noted that the discontinuance, forced by reduction in budgets, of the Index to the Bibliography of Integral Charged Particle Data at the National Nuclear Data
Center (NNDC) at Brookhaven National Laboratory and of the compilation of
integral charged particle data by the Karlsruhe Charged Particle Group(KACHAPAG) at the Kernforschungszentrum Karlsruhe created setbacks incharged-particle nuclear data compilations and exchange. These activities have provided valued services to a large body of scientists in basic
and applied science. The loss of this information from centralized
sources will cause great redundancy of individual users' efforts. It is
hoped that ways will be found to preserve this expertise and for the NNDC
and KACHAPAG to resume the discontinued compilations and services.
The meeting identified classes of charged-particle nuclear reaction
data important for application in various technologies (including neutron
sources, nuclear activation techniques, radioisotope production, chargedparticle data supporting nuclear model calculations for important neutrondata, nuclear fusion, cancer therapy and others). The need is recognizedfor having an international coordination and cooperation for thesystematic measurement, compilation, evaluation and publication of suchdata. The existing nuclear reaction data centres have the tools andexpertise but insufficient manpower to perform this task, and therefore
the participation of additional groups in the existing data center
cooperation would be necessary. Such a co-operation should use theexisting formats and exchange procedures of the internationally agreed
EXFOR System.

*) See page 4 for a list of the co-operating Nuclear Reaction Data
Centers,
taken from the document IAEA-NDS-1 Rev.l, "Short Guide to
EXFOR11, September 1981.

- 19 -

List of Conclusions and Recommendations

Conclusion on WRENDA
1)

The preparations for the next issue, WRENDA 83/84, will proceed as
the last issue.

Conclusions of the working session on CINDA on conference codes2)

New conference codes in EXFOR (Dictionary 7) are restricted to 8
characters (2 digits + 6 alphabetic characters).

3)

Conference codes in the style of 80BNL-2 continue to be acceptable.

Conclusions on Exfor4)

The restricted character set is retained.
implement checks on invalid characters.

Centres are asked to5)

The rule, that no opening parenthesis in col. 12 is permitted for
keywords without coded information, remains strict.

6)(Change!) The use of the heading MISC in the COMMON section ispermitted from now on (although not recommended).

7)

The coding rules for DECAY-DATA remain strict. Because of the
fairly complicated structure of these rules it is recommended to
improve the check programs in this respect.

8)(Change!) For DECAY-DATA, the use of the -G extension to identify
the ground-state of a nuclide which has one or more metastablestates, is no longer compulsory. This does however not change thecoding rules for the reaction product field (SF4) of REACTION,
where -G indicates that a partial cross section is given.

9)(Change!) Coded information is no longer obligatory for DECAY-DATA.

10)The * in col. 80 of the NOSUBENT record of deleted subentries mustnot be omitted, since it is needed in some of the EXFOR programs(e.g. the NDS indexing program).

11)

The following coding rules for REACTION remain strict: -G for the
ground-state may only be used when metastable state(s) exist; -M
may only be used for metastable states (not for shortliving
excited levels).

12)

Receiving centres should accept blanks instead of zeroes in EXFOR
subaccession numbers and line numbers.

13)

The centres are encouraged to improve checking codes to detect
coding errors in the numerical data tables.

- 20 14)

The rules for the use of the keyword EN-SEC (in particular when
the reaction proceeds through a shortliving intermediate state)should be observed.

15)(Addition) The compilation of KERMA-factors is accepted for the
EXFOR-V and charged particle series (together with the required
dictionary additions), but is not accepted for regular neutron
EXFOR.

16)

The LEXFOR entry on the code "INT" as proposed in Memo CP-D/104 is
adopted with the following addition:"If such data are coded it should be clearly mentioned who
integrated them. Generally only data provided by theexperimentor are included.
If the differential data are compiled, a reference to theintegrated data under ADD-RES may be sufficient."

17)

Redundant codes in the REACTION string (examples: 'particle
considered' where no ambiguity exists, 'IND' when only one
reaction channel is possible) should be avoided since they may
create problems e.g. for retrieval programs.

18)(Change!) The proposal of Memo CP-C/92 (add the data-heading
Keyword MASS to the list of keywords which may be repeated withina subentry) is adopted.

19)(Addition) The proposal of CP-C/91 on Energy Resolution is adopted(new headings EN-RSL-FW and EN-RSL-HW). A graphical example
should be added to the proposed LEXFOR entry for clarification.

20)

NNDC's proposal on polarization is adopted.

21)

New principles for the style of expansions in Diet. 3 (Institutes)
are accepted:
1. The expansion has the purpose to enable the user to identify
the institute. Instructions for compilers (like old names)
follow the expansions in the free text.
2. No country code in the expansion.
3. Do not repeat the city name if already given in the institute's
name.
4. City name should always be present, and should be in theoriginal language, if appropriate.
5. Where necessary, original language name and English translation
should both be given, separated by an equal sign, with theoriginal language name first.
6. Use commonly known abbreviations where necessary.
7. Expansions are limited to 2 lines.

22)

If NNDC makes a thorough clean-up of Diet. 3, they will sendsuggested changes to the responsible centre for approval.

23)

For Diet. 7 (Books and Conferences) a short expansion will be
introduced in addition. It is limited to 1 line and enclosed inparentheses. In the following line(s) a longer expansion may be
given in the usual style, also enclosed in parentheses.

- 21 24)

The keyword COVARIANCE is introduced in the BIB section.
Covariance information will be given where possible in structured
form in free text.

25)

The restriction to 18 columns both for DATA and COMMON sections
remains in effect.

26)

Memo CP-C/81 about Error Specifications is adopted with somemodifications (see page 23).

Conclusions on ENDF/B as international format
27)

The ENDF/B format should be a good basis for international
cooperation as NNDC states that no changes are to be expected forat least the next 3-4 years.

28)

Changes in the ENDF/B dictionaries and conventions (such as
extension of dictionaries, clarifications, improvement of themanual) should be directed to NNDC, Dr. Sol Pearlstein.

29)

Problem areas relating to (28) above as identified at the meetingare:- neutron induced reactions leading to metastable states;- different borderlines between resolved and unresolved resonanceregions for s- and p-wave resonances;- the use of Reich-Moore parameters;- charged particle spectra in neutron induced reactions;- limitation of the number of competitive widths to 1 in theunresolved resonance region (e.g. the (n,yf) process).

30)

If the coding of an evaluation in ENDF results in a loss of theinformation provided by the evaluator, and if it is desired tokeep all information, an alternate format, e.g. EXFOR should be
used in addition, for storing the evaluator's original data.

31)

Evaluators submitting their evaluations for inclusion in an ENDF/B
format file should give a summary documentation of the methods andmajor sources used in the 1451 section. Data centres should
request authors to provide also detailed documentation.

32)

For the selection of appropriate evaluation methods, the "Workshop
on Evaluation Methods and Procedures" held at BNL, 22-25 Sept.
1980, forms a suitable basis.

33)

If errors or deficiencies in particular evaluations are found, theauthors and the data centres should be notified.

34)

The comparison and testing of nuclear model codes on aninternational scale conducted by the NEA-DB is very muchappreciated. It is recommended that this effort be continued by
NEA-DB and extended to other types of benchmarks. Data centres
are asked to verify the relevance of the current exercises totheir interests and to suggest other problems if necessary.

- 22 35)

A newsletter on nuclear model and processing codes related to
ENDF/B is suggested that contains information on formats anddifferent versions of the same codes at different laboratories.
NEA-DB volunteers to consider an extension of contents anddistribution of its Newsletter NNDEN.

Recommendations on EXFOR
1)

Centres should study whether neutron data and charged particle
data require different checks in the EXFOR checking programs.

2)

After collecting experience with the presentation of covariances
the centres should propose a method for coding covariance data ina retrievable format.

3)

On the basis of the increasing volume and variety of services
requested from the data centres, the meeting strongly recommends
that the completeness of the EXFOR neutron data compilation,
including fission yields, be continued in the future.

- 23 Agreed Rules for the
Inclusion of Detailed Error Informationin the International Data Exchange Files (EXFOR)Formulated at the Fifth Nuclear Reaction Data Centers Meeting
Brookhaven National Laboratory, September 1980,
modified at the Sixth Nuclear Reaction Data Centers Meeting
Vienna, May 1982
General Comments
1. First priority should be given to the compilation of detailed
information on statistical and systematic errors for experimental
data on neutron cross sections of standards and dosimetry reactions,in new entries and for retransmitted data sets.
2. When the required information is not given in the puclication, every
effort should be made to obtain the information from the authors.
3. They keyword COVARIANCE is introduced. All correlation factors andcovariances,if given by the authors, are given in free text, where
possible in structured form. If this becomes too bulky forinclusion in EXFOR, a reference where details can be found issufficient.
4. Errors should be broken down into statistical and systematic errors.
5. Errors will be given as one standard deviation or the equivalent forsystematic errors.
6. Systematic errors should be broken down into individual independent
components and these components should be given as a function ofenergy.
Theyshouldnotbecombined
into
a
final
variance-covariance matrix (V-C matrix) as this represents asignificant loss of information.
7. The breakdown of 11
systematic errors into major components by source
should be "fineenough so that the correlations between
sub-components at different energies within a given major component
may be reasonably set equal to a constant lying between +1.0 and-1.0.
8. In the case of systematic errors where the preceding is notsatisfied, e.g., background determination in a time-of-flight
experiment with black filters, the quantitative information on theenergy dependence of the correlations should be given in "comments"
which include the appropriate algebraic expressions.

Note: *Errors referred to here are an expression of the uncertainty ofthe measured data and are not mistakes or blunders.

- 24 9.

The preceding two proposals avoid the problem of having to give agigantic V-C matrix in the files and allow the evaluator construct
the V-C matrix of the data from the information given. They also
allow for the inclusion of new information on any major error
component obtained at a later date.

10.

Measured ratios should always be given when they are available.

11.

Data measured in different experimental runs with changes inexperimental parameters, e.g., sample, flux monitor, etc., should begiven as separate sets.

Specific Proposal
1.

Error fields will be identified as statistical or systematic (ort o t a l , i f that is all that is given). The definition of thedifferent systematic errors will be given in free text comments.

2.

Only errors which are one standard deviation or the equivalent will
be entered using this format. If authors give 2- or 3-sigma-errors,
EXFOR compilers will convert them to 1-sigma-errors. Other types oferror information will usually be given in free text only.

3.

Constant errors, such as in sample thickness, etc., will be enteredin the COMMON data section or in free text under ERR-ANALYS, others
will be given as a function of energy.

4.

The data will be tabulated as follows:

ERR-1
E
l

ERR-2
e
2

ENERGY

EN-ERR

EN-RSL

DATA

E

l

*E1

W

B{E

E2

AE2

E R (E 2 )

E.

eE.

ER(E.)

i

i

E

n

sE

n

t\

E

ERR-S

ERR-3

ERR-4

W E 1 }E (E }

E

B(E 2 )

Astat(E2)^(E,,)

e ^ )

B(E.)

t.JZ.)

e,(E.)

e.(E.)

i

R(En'

1}

i

B(E

n>

5 tax.

W

V

i

3 1

o

4(E1>

l

HI

'3 ( E n''4(En»••

where ENERGY = Lab energy of incident particle
EN-ERR = energy uncertainty
EN-RSL = resolution(a Gaussion distribution is assumed; (EN-RSL) defines thevariance of the distribution.)- 25 DATA = the measured data (B)
ERR-S = statistical error (^stat)ERR-1 = constant 1st major component of systematic error
ERR-2 = constant 2nd major component of systematic error g
ERR-3 = 3rd major component of systematic error (£3)
ERR-4 = 4th major component of systematic error (£4)
etc.
The following are assumed:s< e< (Ei) c m ( E j ) > £ 0° if i ^ J

if U

m.

where p^j is a constant between -1.0 and +1.0
See General Comment 8, when p ^ is energy dependent.

- 26 -

List of Actions

No_.

on

1

CJD

Inform receiving centres when EXFOR TRANS tapes
4042, 4043 were sent; retransmit 4042 and 4043 to
NDS.

la

V. Mclane

Check, if (and if yes, when) tape 4042 wasreceived at NNDC.

2

allWhen sending tapes to other centres, send telex
giving date of dispatch, contents and tape number.

3

CAJaD

Transmit n-source CPND to other centres.

4

CAJaD

Retransmit TRANS-M002 to NDS.

5

all

Address tapes clearly to NDS, not only to IAEA.

6

NDS

Investigate how the CINDA price would be affected
if the bulk orders would decrease.

7

NDS

Submit until August 1982 different publication
scenarios of CINDA with cost estimates.

8

NEA-DB

Provide statistics of CINDA file, on which costestimate can be based.

9

allexcept NDS

Comment on NDS 1 CINDA publication proposals(ref. Action 7) until October 82.

10

all

Check the list of "selected literature scanned"in the CINDA book and delete publications with
low CINDA-relevance.

11

all

Comment on the new CINDA layout.

12

NDS

Change the EXFOR checking programme so thatblanks in sub-accession numbers and line numbers
can either be accepted as such or automaticallyreplaced by zeroes without causing error messages.

13

NDS

Update files after receipt of corrections from
NNDC and NEA-DB in subentry units and sendcomplete files to CJD and CAJaD until thesecentres have adapted their programmes to accept
subentries as the units of retransmission.

14

neutron data
Centres

By the end of 1982 the transmission of keywords
ISO-QUANT and STANDARD will be terminated.

- 27 No.

£n

15

NDS

16

NNDC

17

CJD

18

all

19

NEA-DB

When NDS corrects tapes from CJD and CAJaD to besent on to the other centres, the date on the
TRANS record should be changed so that thecorrected version can be distinguished from theoriginal version.
Retransmit the 80000 series to CJD.
Inform the other centres which entries of the80000 series can immediately be deleted.
Correct the mistakes found by Dr. Adamski in his
letter (WP11, see Appendix 12).
Check whether they can retrieve from the CINDA
file and send to responsible centres:- data flagged entries on experiments which do
not have an EXFOR index line;- a list of EXFOR index lines in CINDA.

20

all

Make necessary corrections arising from action 19.

21

NDS

Reword in Diet. 36 existing entries on POL aslistedinthe
new
LEXFOR
entry
page
Polarization-5 as well as POL - POL/DA POL/DA,,ASY; remove POL..ASY from Diet. 36.

22

all

Each centre should review Diet. 3 from its area,
but it is not expected that much manpower isinvested.

23

NDS

Try to obtain most recent version of Berman's
file and send it to CAJaD for the Moscow
Photonuclear Centre.

24

NDS

To improve the wording in the EXFOR Manual about
the use of REACTI0N-SF7 (particle considered) andto introduce examples for clarification.

25

NDS

Send comments on CJD CINDA EXFOR index lines.

26

NDS

27

NDS

Send completed parts of EXFOR computational
format to CJD.
Review the coding in ENDF/B of reactions leading
to metastable states and send comments to NNDC
for clarification.

28

NDS

Investigate quantitatively the effect of the(n,yf) process on the self-shielding, in order tobe able to judge whether this process requires
improved treatment in ENDF/B.

- 28 No.

on

29

NDS

Test the effect of particular interpolations
chosen for cross sections between the nuclear andthe Coulomb threshold on calculated spectrum
average cross sections.

30

NNDC andNDS

Update EXFOR Manual and Dictionaries according to
the EXFOR Conclusions of this meeting.

31

neutron data
CentresCirculate to evaluators and selected experimentors
the proposal for inclusion of detailed uncertainty information in EXFOR.

32

all

33

NDS

Send lists of planned meetings until 1985 to theother centres.
Circulate list of actions and conclusions to all
before draft minutes.
Continuing actions from last meeting

34(7)

all

When Center staff attend specialists meetings,
collect and distribute papers relevant to theother Centers' interests.

35(19) NDS

Inspect data sets 30319.002, 30328.011 and30395.002 to see if limiting the number of EXFOR
data fields to 18 is reasonable.

36(20) all

Review references for charged particle reactions
that have equivalent neutron fission reactions,such as (d,pf) and (t,df), and decide whether or
not to compile them in EXFOR. The retroactive
cutt-off data is 1965.

37(21) all

Implement checking programs to verify thatcompilers observe the LEXFOR rule concerning
particles in reaction subfield 7 (SF7).

38(41) Neutron
Data Centers

Compile fission spectrum data in EXFOR withpriority.

- 29 Appendix 1
List of papers presented at the meeting
Status Reports

Reference

SRI
SR2
SR3
SR4
SR5
SR6
SR7
SR8

Appendix 2
Appendix 3
Appendix 4
Appendix 5
Appendix 6
Appendix 7
Appendix 8
Appendix 9

NNDC Status Report
NEA-DB Committee Progress Report
NDS Status ReportCJD Progress Report
CAJaD Status Report
The Activities of COFE
KACHAPAG Status Report (Memo CP-B/33)
FIZ Status Report

Working Papers
WP1

Actions from the last meeting

Report INDC(NDS)-125

WP2

CINDA matters (M. Lammer)

Memo 4C-3/257

WP3

EXFOR statistics (H.D. Lemmel, 0. Schwerer)

Appendix 10

WP4

Pending retransmissions of EXFOR entries(0. Schwerer)

Memo 4C-3/256

WP5

INDL/V Summary Documentation (V. Pronyeav,
D.E. Cullen, H.D.Lemmel, 0. Schwerer)

Document IAEA-NDS-31,
Rev. 2

WP6

IRDF-82 Summary Documentation (D.E. Cullen,
N. Kocherov, P.M. McLaughlin)

Document IAEA-NDS-41

WP7

INDL/A Summary Documentation (H.D. Lemmel)

Document IAEA-NDS-12,
Rev. 6

WP8

Sample pages from CINDA (M. Lammer)

CINDA 82WP9

NDS Meetings 1981/82 (H.D. Lemmel)

Report INDC(NDS)-124

WP1O

Importance for compilation of selected
CPND and Photonuclear Data (K. Okamoto)

Appendix 11

WP11

Letter to NDS by L. Adamski

Appendix 12

WP12

Collection of items for technical discussions(H.D. Lemmel)

WP13

NDS checking of incoming TRANS tapes (0. Schwerer)

WP14

Results of a questionnaire concerning nuclear
data needs for medical radionuclide production(K. Okamoto)- 30 WP15

Evaluationof the 27 Al(n,a), 56 Fe(n,p),6?Cu(n,2n), 6 5 C u ( n > 2 n ) , 19'Au(n,2n),93NB(n,2n), 32 S ( n ,p) and lH(n,n) crosssections: completeness check of EXFOR and
CINDA (K. Okamoto)

Memo 4C-3/255

WP16

EXFOR Computation Format Status Report(D.E. Cull en, 0. Schwerer)

Appendix 13

WP17

Results of questionnaire concerning nuclear
data needs for medical applications inJapan (K. Okamoto)JAERI-memo 57-041

WP18

see Topical Paper 4

WP19

CSISRS Users Manual (NNDC)

Appendix 14

WP20

NNDC Products and Services (NNDC)

Appendix 15

WP21

Contents of B0SP0R-80 (V. Pronyaev)

Document IAEA-NDS-31,
Rev. 2

Topical Papers
Report INDC(NDS)-134

TP1

Verification of Nuclear Cross Section
Processing Codes (D.E. Cullen, W.L. Zijp,
R.E. McFarlane)

TP2

Conversion to ENDF/B format of some Austrianevaluations: quantities having no representation
in ENDF/B (0. Schwerer)

TP3

NNDC role in ENDF (S. Pearl stein)

Appendix 16

TP4

Compilation of the Joint Evaluated File
(NEA-DB)

Appendix 17

TP5

Example of high-energy neutron crosssections

Appendix 18

'- 31 Appendix 2
National Nuclear Data Center
Status Reportto theSixth Nuclear Reaction Data Centers Meeting
3-7 May 1982
I.

GeneralSince our last report to the Nuclear Reaction Data Centers Network, the
NNDC staff has been reduced by 4 V?people due to budget cuts. For this reason
we have terminated charged particle bibliographic and data compilation.
The
forthcoming "Bibliography of Integral Charged Particle Nuclear Data" will be
the final issue.
In the past year we have acquired a Vector Automation grahics system
and installed one additional ISO-megabyte disc drive.
II.

WRENDAThe biennial review and updating of the U.S. Nuclear Data Request Listis in progress. Requests have been sent to originators for review.
III.

Bibliographies

The normal CINDA and NSR activity has continued.
Special indicis havebeen prepared for the 1981 and 1982 DOE-NDC Status Reports.
NNDC has now produced a total of two cumulative issues and two supplement
issues of Recent References.
IV.

Data Libraries

In the period from October 1980 through April 1981, 21 neutron datatransmission tapes (TRANS 1114-1134) were sent containing 101 new entries andnumerous corrected data sets.
An effort is being made to convert all data in the ISO-QUANT format to
REACTION format.
A comparison has been made between the SCISRS-1 60000 and 70000 series
conversion data and the data transmitted from area 2 and 3. Data which were
not identified as having been transmitted were converted to the REACTION
format and sent to the appropriate data center.
V.

Evaluated Nuclear Rection Data

Revision 2 to ENDF/B-V will be released this spring. The planning for
ENDF/3-VI continues.
The ENDF/B formats should be fixed in spring 1982 andthe "standards" evaluations completed in the spring of 1983.

- 32 VI.

Nuclear Structure Data

The transfer of responsibility for the publication of the Nuclear Data
Sheets from the Nuclear Data Project at ORNL to NNDC has been completed. NNDC
is now responsible for publishing the Nuclear Data Sheets, beginning with theJune 1981 issue (NDS _33_> No. 2 ) .
NNDC has been providing data and bibliographic retrievals and monthly
bibliographic updates to the evaluators of Nuclear Data Sheets and otherrequestors. Several request for non-standard retrievals from ENSDF were alsosatisfied.
A new edition of the Nuclear Wallet Cards is planned during latter halfof 1982. A microfiche of the computerized chart of nuclides called Computope
Chart was distributed in March 1982. Both of these represent data extracted
from the computerized ENSDF and are therefore consistent and current with
Nuclear Data Sheets.
VII.

Customer Services
The request statistics for July 1, 1980 to March 31, 1982 are attached.
Work on a CSISRS Users Manual is in progress.

It should be issued thisyear.
VIII. Publications
The forth edition "Neutron Cross Sections," (formerly known as BNL-325)
Vol. I, Part A, Resonance Parameters for Z-l-60 was published by Academic
Press, Inc. It is expected that Part B will be published by the end of 1982.
Work, will begin in the fall on the planning for the publication of the"book of curves."
The Nuclear Physics section of the Physics Vade Mecum published on the50th anniversary of the American Institute of physics was contributed by NNDC.
IX.

Future Meetings
Thermal Beactor

1982.

BenchmarkCalculations, BNL, Upton, NY. , May

17-18,STATISTICS
TABLE I
1 JULY 1980 TO 31 DECEMBER 1981
AREA 1NUMBER OF REQUESTS FOR DATA AND OTHER INFORMATION*

Experimental
N e u t r o n andRequestor
USA-Covernment
Agencies

Charge Particle
Data

Evaluated
Neutron andCharge P a r t i c l e
DataBibliographic
Neutron andCharge Particle
Information

All
Programs

All
Documents

TOTAL

1
71

59

20

11

127

288

1

USA-Educational
Institutions

21

32

4

10

138

207

USA-Industry

34

62

4

17

126

243

1

5

0

6

14

26

10

265

275

54

670

1039

CanadaForeign (except
Canada)
TOTAL

OJ

129

158

* Hi is page does not include regular distributions, see Table II.

28

- 34 STATISTICS
TABLE II

1 JULY 1980 TO 31 DECEMBER 1981
AREA 1REGULAR DISTRIBUTION OF DATA AND INFORMATIONA.

Experimental Neutron

Data:

B.

Evaluated Neutron Data:

26 Tapes-TRANS 1109 to 1134

7 Tapes ENDF/B-V TAPS 541
ENDF/B-V TAPE 542
ENDF/B-V TAPE 543
ENDF/B-V TAPE 544
ENDF/B-V TAPE 545
ENDF/B-V TAPE 546.
ENDF/B-V TAPE 531 (V.I)

FISSION PRODUCTFILESDOSIMETRY FILESC.

Bibliographic Neutron Information:

14 Tapes - CINDA COVERAGE

D."

Experimental Charge Particle Data:

1 Tape - Version 2/80

E.

Bibliographic
1/81, 2/81

FMS:jbCharge Particle Information:

3 Tapes - Versions 1/80,

Nuclear Data Cerofer
Coinnputeir Systemf> 12 Kw Internal Memory
PDP-11/34
Communications
Hont-ond

DECtapeControl
DTAO

DTA1

DTA2

DTA3

DECsysfcm-10
KL-1OB1E
I/O BusCentral
PDP-11/40
Console)Froni-ond

Processor
Calcomp30'

Versatee36"

Versatec

ir
8 Internal Channels|Floppv|_Disk32 Asynchronous
T eriiiinul linos

Card
Reader
RPAol RPBOM RPCO

|Coi>BOlo|

RPAlLInteractive
ctive
Giuphics
hies

to
tn

MTAO 7 track ( 2 0 0 / 6 6 6 / 8 0 0 bpi) 200 ips

idem]
Modem
nemoteDiagnosis

MagtapeControl

7 Removublo Pack
Disk drives
180 Mb oach

MTA1 0 track (BOO/1600 bpH 200 ipa
RPC3— | M T A 2 g track (1600/6260 bpi) 126 Ips

JMTA3 g track (18OO/B26O bpi) 200 Ips

Brookhavon National Laboratory
Upton. II.Y. 11973
March. 1982

Una
Printer

- 36 Appendix 3
For Nuclear Reaction Data Centres meeting Hay 1982

NEA DATA BANK COMMITTEE
Progress Report - May 1981 to April 1982I.

INTRODUCTION

The past twelve-month period was marked by successive gaps in thepermanent scientific staff, only some of which could be planned for. In
this context, it may be considered as a successful test of the working
procedures built up during the conversion period that the programme of workfor 1981 was in fact adequately carried out. Since the beginning of 1982,
the scientific staff has been back at full strength, and good progress has
been made not only in the regular work of program testing, data compilationand customer service, but also in the assembly of a "starter file" for the
Neutron Joint Evaluated Data File project and in the standardisation ofcomputer program testing procedures.
II.

NUCLEAR DATA SERVICES

Following the recompilation during the previous 12-month period of
all NEUDADA information from the NEA-DB service area not previously included in EXFOR exchanges, and the absorption of the backlog of new data
available but not yet compiled, data compilation work fell back to a morenormal level, comparable with the input received from NNDC, Brookhaven.
Development on the nuclear data side was concentrated on theprovision of graphical output from the files of numerical, experimental andevaluated neutron data, and on the first half of Phase 1 in the Joint
Neutron Data Evaluation project.
1.

Neutron data Compilation

During 1981, six EXFOR tapes were sent out to the other three
centres in the neutron data network : a total of 57 new compilations, and177 retransmissions of corrected data sets.
This represented the data
newly available during the year, although at the beginning of April some150 data sets in all had been requested but not yet received. This figure
should not be considered as a backlog, since many of these measurements
were still at an early stage, or had not yet been fully analysed, and had
been added to the list, and the authors contacted, on the basis of interim
progress reports.
2.

Customer Services for Neutron Data

Service work fell into two parts : traditional customer service,
more recently augmented in 1982 by a certain number of data plots, and the
preparatory data plotting work carried out in cooperation with CEN
Bruyeres-le-Chatel for the NEANDC meeting on Fast Neutron Scattering on
Actinide Nuclei.

A total of 163 requests for experimental and evaluated neutron
data were handled in 1981, and about bb in the first three months of 1982.
If the peak in 1978-9 is removed, corresponding to requests for different
sections of ENDF/B V as they were released, the level of requests appears
as roughly constant at about 200/year over the last seven years. Data
plots have been included only when specifically requested, generally by
evaluators.
In preparation for the meeting on Fast Neutron Scattering on
Actinide Nuclei,some 400 complex plots were prepared for consideration by
the two working groups, comparing experimental data and the different
evaluations. Revised versions of the more important of these plots will be
published with the proceedings.
3.

Nuclear Structure and Decay Data

The Data Bank provides a limited service to users of the EvaluatedNuclear Structure Data File (ENSDF), who may either request data in theusual way, or reach both the data and the corresponding search and output
formatting programs directly on the CISI computers, by requesting access toa specified Data Bank disc. It is planned to provide similar access to the
Nuclear Structure Reference file; this file has been loaded on the PDP
11/70, and simple retrievals carried out.
The complex structure of these files, and their sophisticatedoutput formats in print, require a reasonable investment in program development and maintenance if an adequate customer service is to be maintained.
It is intended during 1982 to bring the output presentation and retrieval
facilities offered by the Data Bank or directly on CISI computers up to asimple but fully adequate level. Dr. Coddens will be reporting on this workat the first meeting of NSDD groups.
III.

THE JOINT NEUTRON DATA EVALUATION PROJECT (JEF)

The final meeting of the NEACRP ad-hoc working group, held at
Winfrith in September 1981, reviewed recommendations for a number of evaluations for individual isotopes to be included in the file, and nominatedreviewers for further materials. The work of translating and assemblingthese files in ENDF/B V format has been carried out by the Data Bank, andby 1st April 1982 a total of 27 materials'had been prepared, in addition to
those already available in ENDF/B V format and the natural iron file prepared at AEE Winfrith.
Meanwhile, and following the acceptance by the Steering Committee
for Nuclear Energy of the Data Bank Committee's proposal for a first phaseof this project (the constitution of a "starter" file in ENDF/B V format),a Scientific Coordination Group has been established in consultation withmembers of the Data Bank Committee. This, group met on 30th March, 1982, toreview progress on the "starter" file and to make recommendations for thecontinuing work on Phase 1 of the project, and for a possible second phase.

- 38 -A proposal for a three-year second phase, covering extensive
benchmark testing of the 3EF-1 starter file and preparation of the next
version 3EF-2 will be presented to the Data Bank Committee this month.
IV.

COMPUTER PROGRAM SERVICES

1.

Computer program testing and special projects
A total of 98 new programs were tested, packaged and master filed

in 1981.
In addition to this constant effort in response to user requests,
the Data Bank was involved in two special projects:a) Safety programs to be presented at the ANS San Francisco meetingin June 1982. The N0RC00L code has been fully implemented at
Saclay, and work continues on SSYST. We have received formal
confirmation that DRUFAN will very shortly be released to the DataBank.
b) The shielding version of TRIPOLI. In collaboration with the
French CEA, who have undertaken to extend this code to covercoupled neutron-gamma production, and with the help of an expert
consultant from Oak Ridge National Laboratory and representing the
Radiation Shielding Information Centre, the Data Bank is undertaking extended testing of the code, including calculation ofa standard problem based on the IRT large-scale integral experiment with a concrete and steel shield.
The CRAY-1 computer has been used rather regularly and successfully for testing CDC programs. Although none of the programs tested were
written with parallel processing in mind, the price/performance ratio issimilar to the CDC-7600, with a slight gain for programs where this proportion of computation to input/output is higher, and an important gain in
facility due to the much larger memory of the CRAY, which obviates theoverlaying work necessary before larger programs can be tested on the
CDC-7600.
Work on documentation and standarisation of the information to be
included by Data Bank programmers in the packages they prepare, has continued in parallel with our efforts to obtain FORTRAN language verifiers
corresponding to the 1968 and 1977 standards. It is hoped to have thissoftware in the near future.
2.

Computer Program Abstracts and the Integrated Data BaseDuring this 12-month period, the information on European andJapanese programs in the integrated Data Base was completed and correctedin preparation for the publication in Duly 1981 of the "NEA/IAEA
Abstracts".

- 39 -

Information entered on all aspects of the testing and packaging
process, as well as on programs themselves, becomes immediately available
to everyone authorised to access the Data Base of computer program information, thus in particular eliminating most of the clerical delays inhandling requests for programs already tested and available on the master
files. Thus for the 200-odd program packages sent out so far in the earlypart of 1982, 90 per cent of all packages were dispatched within 10 days of
the receipt of the request. This figure may be compared with 60 per cent in
1980.
3.

Requests for computer programs

A total of 1187 program packages were sent out in 1981, corresponding to 564 distinct programs. 967 of these packages went to OECD
countries, and 220 to countries serviced on behalf of IAEA. The subject
categories of the programs requested are as follows :REQUEST DISTRIBUTION BY CATEGORY
Category
1.
2.
3.
4.
5.
6.
7.
B.
9.
10.

Distribution by
percentage
General mathematical and computing
system routines
Radiological safety, hazard andaccident analysis
Spectrum calculations, generation ofgroup constants, lattice and cell
problems
Static design studies
Heat transfer and fluid flow
Cross section and resonance integral
calculations
Gamma heating and shield design
Data management
Depletion, fuel management, cost analysis,
and power plant economics
All other

17
11
9
9
8
7
7
7
5
20

TED"
Another interesting distribution refers to the "age" of programs
requested. If we examine the years in which the codes requested in 1981
were received at the Data Bank (or by its predecessor, NEA/CPL Ispra) we
see that although the maximum of this curve lies in 1980 with 28 per centof the programs requested, the curve then tails off smoothly backwards
beyond 1971, excepting only a sharp dip in 1978 caused by the reduced
number of programs collected during the year in which Computer Programservices were transferred from Ispra to Paris.

Copies of programs tested are distributed about six times during
approximately ten years of useful life. If programs of U.S. origin are
included, the figure becomes about ten copies distributed.
V.

SERVICE ON EXPERIENCE IN CODE UTILISATION (SECU) AND BENCHMARKS

1.
SECU Using the newly stored information on the computer program
information Data Base concerning the destination of program packages sent
to users, four programs of European origin frequently requested by European
users have been selected, and questionnaires sent out to these users. This
exercise will be extended in the light of the replies received.
2.
Nuclear theory benchmarks The NEA/IAEA exercise on Nuclear model
code comparisons has raised genuine interest in countries outside the NEA
community : although delays in sending answers from non-OECD countries havesomewhat slowed the exercise, its value is surely enhanced. Work has been
completed on both the coupled channel and spherical optical model/statistical model components of the exercise, and reports are in preparation.
Following a workshop on the calculation of Average Resonance Parameters, held at the Data Bank in October 1981, several codes were promisedfor deposit on the code collection, and it was agreed that a "blind" rerunof this calculation exercise should be carried out at the Data Bank by two
physicists with no previous experience of the question, as a means oftesting the revised versions of the codes as implemented at Saclay andabove all of identifying the remaining subjective aspects of the interactive selection of neutron width thresholds for separating s- and p- wave
resonances. The codes received by April 19B2 have been tested and a draft
report on this work prepared for discussion with the program authors. It
is intended to issue a full report of the study as a NEANDC "u" document.
VI.

PUBLICATIONS

1.
CINDA : The tapes for the 19B1 CINDA supplement, and the full
CINDA 82 cumulative volume (covering the period 1977 to 1982), were prepared and sent to IAEA for publication.
2.
Computer Program Abstracts. The full edition of the Abstracts for
European and Japanese programs was sent for printing in July 1981. The
abstracts are made available in book and microfiche form, and tape copiesof these plus the U.S. abstracts have been sent to three major centres forpossible use in providing a local information service to their users.
3.
Serial Publications.
Two issues of the Neutron Nuclear Data
Evaluation Newsletter (NNDEN) Nos. 30 and 31, and five of News from NEA
Data Bank, were published during the twelve-month period.
4.
Proceedings of the 1981 Seminar at NE5C Argonne.
These proceedings reproduce the presentations at NESC of four European and Japanese corecomputation codes, and the extensive discussions which followed.
The
programs presented were the WIH5 family of codes, LAMP-B, SYNTH and FEMBABEL.

5. NEANDC Monographs The Data Bank has been helping in the preparation of
Dr. Cierjack's monograph on Neutron Sources. Both this and Dr. Chrien's
book on Neutron Capture are in the final stages of typing, and should go
for printing within the next two months.
VII.

WORK IN COOPERATION WITH NEA SECRETARIAT

1.

Work on behalf of the Nuclear Science Division

Under the arrangement with the main NEA Secretariat by which
NEACRP and NEANDC are serviced from the Data Bank, staff members took partin the organisation of NEANDC specialist meetings on Fast Neutron Scattering on Actinide Nuclei (at OECD and CEN Bruyeres-le-Chatel) and Fast
Neutron Capture Cross-Sections of Important Isotopes at Argonne National
Laboratory. A computer program comparison workshop was held to review theresults of a calculation exercise on Average Values of Resonance Parameters(at NEA Data Bank). NEANDC meetings are spaced at IB-month intervals, andnone was held during this period.
The annual NEACRP meeting was held at AEE Winfrith in September
1982, and was accompanied by a final meeting of their ad hoc Working Groupon Neutron Data Evaluation. With the adoption by the 5teering Committee for
Nuclear Energy of the Doint Evaluated Data File project, this group was
replaced by a Scientific Coordination Group, which met in March 1982 toreview progress in the constitution of a first-stage Joint Evaluated File.
The Third Specialist Meeting on Reactor Noise (SMORN III) was held in Tokyoin October 1981, and the proceedings will be published this month by
Pergamon Press.
2.

Data Files maintained in Cooperation with NEA Secretariat

This cooperation has over the last three years been distinguishedby the examination of several information projects.
Two have been
rejected, or postponed until interest proves greater: the IAEA Uranium
Resources Data Base, and the U.S. LOCA (Loss of Coolant Accident) Data
Base. Two projects are being actively pursued and are expected to be
maintained; the highly sophisticated ISIRS International Sorption Information and Retrieval System, presented in a separate document DATA/DOC(82)3and due for installation on the Data Bank's in-house computer in 1982-83,
and the newly-proposed Compendium of Research Activities on Radio-nuclide
Migration, which is very much at an early stage in terms of the number of
entries, and will initially aim for neat presentation and layout of a
printed brochure to be developed later for computer searches as the size ofthe file increases. Two other projects have been brought to the Data Bankfor initial planning work: an Incident Reporting System for the Nuclear
Safety Division, and a data file on the Mechanical Properties of Structural
Steels.

The work invested in these projects is still very small, but is
expected to increase somewhat with the size of these files maintained on
disc, and as a common pattern of requirements emerges to justify more
extensive programming work.
VIII

USE OF THE PDP 11/70 COMPUTER

Availability of the PDP-11/70 has continued to be good, and thefurther development of Digital Equipment Corporation maintainance services
by the addition of remote on-line diagnostic equipment has minimised thetime lost through hardware faults. Very little further software development has been undertaken during the past twelve months, and existing
systems, including the two Data Bases (nuclear data and computer program
information) have worked well under increasingly heavy use.

- 43 Appendix 4
NDS Status Report to the 1982 NRDC Meeting
H.D. Lemmel, April 1982
1. Staff, budget, programme
The organization of the Section as of April 1982 is shown on the next
page. During the past 18 months the staffing was fairly stable. End of
1981, Mrs. H. Hendrickson who took care of the request logs, left theSection and was replaced by Ms. M. Okumu. At the beginning of 1982
N. DayDay, who was mainly responsible for request services, left theSection. A successor was not yet nominated. In the Atomic and Molecular
Data Unit R. Langley left. His functions as Unit Head were taken over by
A. Lorenz, so that R. Langley's replacement will fill part A. Lorenz's
work, T7T particular the field of nuclear structure and decay data. jC^
Sheikh was hired as a data processing clerk.
The difficult budget situation of the Agency continued. It seems
however, that the NDS program is recognized as important for the technology transfer to developing countries, so that the program is continuing
at its present level, though some shifts in the program may occur. One
professional post which had to be kept vacant for a longer period, wasfinally lost. On the other hand, a "general service" post was raised tothe professional level.
As a general trend within the IAEA and its Member States, there will
be a continuing shift of emphasis towards developing countries with respect to data center services, research contracts, staffing within NDS,
and the so-called "Interregional Project for the Training of Nuclear
Scientists in Developing Countries Using the Expertise available in the
Nuclear Data Field".
2. CINDA work at NDS
The backlog in the coverage of journals due to move of the IAEA to
the new building (V.I.C.) and due to a reorganization of the V.I.C.
library was almost completely overcome by now. Unfortunately a few journal series are still not available to NDS at the V.I.C. library. Hopefully, this will be solved in the near future.
The installation of the report library at the V.I.C. was completed
only in 1981 and the scanning of reports received up to that date israther time consuming and still not finished. However, the coverage ofcurrent issues of the most important report series is fairly complete.
The production of the CINDA-book file for photocomposition went moresmoothly this time, thanks to a special effort at NEA-DB (G. Coddens):
all missing author flags were added and erroneous coding of authors(delimeters) corrected (5131 linesl); all underscores were removed; allcompounds were coded correctly. Also, cutoff-dates of literature coverage and expansions of new codes were received in time and (almost) complete.

ORGANIZATION CHART OF THE NUCLEAR DATA SECTION AS OF MARCH 1982

Section and Data Centre Administration

Secretariat of the International
Nuclear Data Committee
J.J. Schmidt (Scientific Secretary
A. Lorenz

Nuclear Reaction Data

J.J, Schmidt(Section Head)

A. Lorenz(Deputy Section Head)U. Leidolf(Secretary)

E. Baumgartner(Secretary)

Nuclear Structure andDecay Data

1.

Atomic and Molecular Data

Nuclear Data Annesnmont
and Research Coordination

A. Lorenz (Head)J . J . Schmidt (Hoarf)

H.D. Lemntel (Head)

A. Lorenz (Head)K. Okamoto

K. Okamoto (part time)

K. Katsonis

N. Kocherov

V. Pronyaev

H. Lammer

D. Qremillet

K. Okamoto (p?\rt time)

E. Lanka (Secretary)

V. Pronyaev (part time)

K. Sheik (DPC)

H.D. Lemrnel (part time)(part time)

0. Schwerer
M. Lammer

M. Lammer

S. Aung (Secretary)(one vacant P-pont)(one vacant P-post)

I
Data Processing andProgrammingI
L.

(part time)

D.E. Cullen (Head)
M. Seits
K. McLaughlin
M. Okumu
E. Pocock0 . Mundy (DPC)
G. Hietel (DPC)I

I

- 45 In the CINDA81 book, for the first time the tables 3 (REF-codes) and4 (LAB-codes) were produced by the photocomposition process and reduced
to contain only those codes that appear in the CINDA entries of thecurrent issue. The latest issue, CINDA82, which is presently being produced, has several new features:
The introductory part and the Annex are almost entirely computerized
and produced by the photocomposition process, thus speeding up the
updates to be made for each issue.
The introduction carries the page numbers I.I through 1.28, the Annex
page numbers A.I through A.45 (including the tables). All page numbers now appear in the outer corners of the pages.
The sequence of items in the introduction is rearranged, i.e. theforeword is followed by "A brief introduction to CINDA", "Quickreference list of the 'quantities'", "Computer retrievals available
from the CINDA file", "Computer libraries of cross-section data","Selected literature scanned for the present edition" and "Neutron
data handbooks".
The neutron data handbooks' section on "Neutron-induced reactions" issubdivided into 6 parts with subtitles:
1.1
1.2
1.3
1.4
1.5
1.6

Comprehensive handbooks and data libraries
Neutron-capture gamma rays
Fission product data
Activation data and neutron metrology
Thermonuclear reaction and fusion data
Various special purpose handbooks and data libraries

The compund headings and, accordingly, Table 1 have been revised to:Z - element symbol - expansion of compund code.
Comments to these slight changes in the layout will be most welcome.
The number of CINDA entries for each book sent to NEA Data Bank,
including revisions and CJD entries, is given in the following table:
Summer 1976
Winter 1976/77
Summer 1977
Winter 1977/78
Summer 1978
Winter 1978/79
Summer 1979
Winter 1979/80
Summer 1980
Winter 1980/81
Summer 1981
Winter 1981/82

2523
2030
2166
3586
7077
8867
4176
1809
1394
1486
2096
2508

entries

preparation
and revised irchival issue "CINDA-A"
move to VIC interruption of library- 46 3. EXFOR Compilation (KO)1) EXFOR 3-Series: Experimental Neutron Data
During the period August 1980 and April 1982, we compiled 81 new
EXFOR entries originating from the following countries:
EXFOR-Entries
China (People's Republic)
India
Hungary
Czechoslovakia
German Democratic Repubic
Pakistan
PolandEgypt
Argentina
Australia
South Africa
Bulgaria
TaiwanRoman i a
Bangladesh
Vietnam

20
14
8
7
7
5
5
3
3
2
2
1
1
1
1
1
81

In addition to the EXFOR Compilation of new data more than the double
was retransmitted, due to additional publications or authors' comments
received after the first compilation.
For the period of this report we are confident that our compilation
work was speedy and complete. The only backlogs known are:- several new fission-product yield data are on the waiting list to
be compiled;- for some older data, in particular from India, the authors could
no longer be reached. (This example demonstrates the importanceof speed in the data compilation workl Once one is fallen behind,
it is difficult to catch up.);- the next TRANS tape from NDS will be significantly delayed due toa temporary vacancy at NDS.

- 47 2) EXFOR V-Series; Evaluated Neutron Nuclear Data
Not systematically, NDS continues to compile selected important evaluated neutron data in the EXFOR V-series, in particular when these data
are not suitable for compilation in ENDF/B format.
Important data recently compiled in EXFOR-V are:-Neutron Reaction Cross Sections of C,O,N and others calculated by
Dimbylow cover the energy range from 20 to 60 MeV, normalized at
20 MeV to the corresponding ENDF/B-4 data.

-

Kerma Factors derived from above mentioned data.

-

Evaluated 14.7 MeV cross-sections
covariances.

on important

reactions

with

EXFOR-V series data transmitted i n the period of August 1980 and
April 1982 are summarized in the following:
V0023"P-wave Neutron Strength Functions"
S.K. Rathi and H.M. Agrawal; J.Phys-G: Nucl.Phys. 1_ (1981)53

V0025"Evaluation of Resonance Parameters for Cr, Fe and Ni Isotopes"
These data supplement the KEDAK data of the same nuclides.
F. Froehner; Specialists' Meeting on Neutron data ofStructural Materials for Fast Reactors, CBNM, Geel,
December 1977, page 138.

_
V0026

"Total Neutron Cross-Sections of Benzene (from 0.002 to 2 eV
Neutron Energy) - Calculation"
J . Abbate, J.V. Lolich, H.S. Wio; Priv. Comrn. Abbate (1981)

V0027"Neutron Cross-Sections for Elements of Biomedical Importancefrom 20 to 50 MeV"
P.J. Dimbylow; Phys.Med.Biol. 25 (1980) 637

V0028"Total Kerma 1Values
for Elements of Biomedical Importance from
20 to 60 MeV 1
P.J. Dimbylow; 4th Symp. on Neutron Dosimetry,
Munich-Neuherberg, June 1981

V0029

"A Simultaneous Evaluation of Some Important Cross-Sections at
14.70 MeV, - 2 7 A i ( n , a ) , 56Fe(n,p), " C u ( n , 2 n ) ,65cu(n,2n), 19?Au(n,2n), 93 Nb(n,2n), 32 S(n,p) and
iMn.n)"
H.G. Hayes and T.B. Ryves; Ann. of Nucl. Energy 8 (1981) 469

The EXFOR-V f i l e i s documented in IAEA-NDS-34 and indexed in CINDA.
3) EXFOR D-series: Charged-Particle Nuclear Reaction Data (CPND)
NDS does the best to compile the CPND specially for biomedial a p p l i cations and for neutron production. However, the lack of manpower prevents systematic coverage of these items.

- 48 The following entries have been made since last Four Centres Meeting:
D0021"Measurement of the Absolute Total Cross Section for the Reaction'Li(d,p)8i_i at Low Energies"
D.W. Mingay; S.Afr.J.Phys. 2_ (1979) 107

D0025"Excitation Function for 0-15 Production via 14 N(d,n) 15 0
Reactions"
H. Vera Ruiz, A.P. Wolf; Radiochimica Acta 24 (1977) 65

D0026"Activation Analysis
with Deuteron - The Total Cross-Sections ofl°B(d,n)llc, 14 N(d,n) 1 5o and I&0(d,n)l7F factions
up to 3.2 MeV"
K. Wohlleben, E. Schuster; Radiochimica Acta ^2_ (1969)75

D0028"Cross Sections for Reactions with 593 MeV and 540 MeV - Protons
in Aluminium, Arsenic, Bromine, Rubidium and Yttrium. Part I
Al(Beam Monitor Reaction)"A. Grutter; Preprint to Int.J.Appl.Radiat.Isot. (1982)

D0029"Cross Sections for Reactions with 593 MeV and 540 MeV - Protons
in Aluminium, Arsenic Bromine, Rubidium and Yttrium. Part II
As, Br, Rb and Y"
Ibid.

4) EXFOR G-Series: Photonuclear data
A first entry of photonuclear data was compiled by NDS in the new
EXFOR G-Series. The data are Isomeric Ratios for (y,n) reactions in
Mo-92, Zr-90, Sr-86 and Se-74 by Fam Zui-Hien et al. (National Institutefor Nuclear Research, Vietnam). The experiment consisted of a simultaneous study of the (n,2n) and [y,r\) reactions on above mentioned nuclei.
We therefore decided to compile the (n,2n) data as usual as 3-Series,
however, with a cross-reference to entry G0001, with which we opened a
new EXFOR "G-Series" of photonuclear data. We have neither intention nor
manpower for a systematic compilation of photonuclear data but may eventually compile such photon reaction data that have direct relevance toneutron reactions as in above example.

- 49 4. The EXFOR System
During the past period of 2 1/2 years, the EXFOR System remained
stable. Only few memos concerning the EXFOR System, were exchanged.
This demonstrates, that the EXFOR revision done in the 1979/80 period has
proven to be successful.
A few items where mistakes in the EXFOR transmission tapes continue
to occur and where improvements in the checking programs would be desirable, will be discussed in the technical session of this NRDC Meeting.
There is another alarming fact, however, which requires discussion at
the present meeting. Whereas in the previous years there was a clear
tendency that additional centers or groups would join the EXFOR cooperation, this tendency has stopped, due to lack of financial support. Thisis regrettable for two reasons:Firstly: Nuclear data measurements continue and are needed tocontinue due to increasing accuracy requirements for various
applications. These measurements can serve their purpose only,
if the results reach the data evaluators and data users speedily
through the international EXFOR data exchange.
Secondly: Until recently, the EXFOR file was in a very good shapewith respect to completeness and reliability of the data, as wefound out in several checks. To maintain this high quality andto keep the EXFOR file up-to-date, can be done with rather
little manpower. But even this minimum of manpower apparently
is no longer guaranteed.
EXFOR Statistics
See the paper WP3 on EXFOR statistics. An EXFOR retrieval was madeby "year of experiment" (e normally the "year of the primaryreference"). Although the figures for the most recent years are not yet
final, one can demonstrate, that data production continues at constantrate in the OECD countries, but at even increasing rate in the USSR andthe developing countries.
EXFOR TRANS tapes received (OS)All incoming EXFOR TRANS tapes are run through the NDS checkprogram. A l i s t of errors found is sent to the originating centre.
Where possible, errors are corrected at NDS. When important errors
cannot be corrected retransmission is requested from the originating
centre. We appreciate that in particular NEA-DB has retransmitted a l l
entries requested by NDS. A l i s t of pending retransmissions from Areas
1, 2 and 4 is given in Memo 4C-3/256 of 20 April 1982 superseding Memo
4C-3/239 of 23 April 1980. Please note that this does not include
pending requests by other centres f o r area 3 retransmissions which,admittedly, are sometimes slow depending on a v a i l a b i l i t y of manpower.

- 50 Updates of Dictionaries 27 (nuciides) and 36 (quantities, REACTION
SF5-8) are most frequently based on apparent "errors" found by the checkprogram. For entirely new codes, in particular for i n s t i t u t e s and references, we would however appreciate receiving them ahead of time, i . e .
before the TRANS tape where they are used.
5.

ENDF/B Compilation at NDS

The most important project of the past 18 months was the start of the
IAEA Nuclear Data Library (INDL) in ENDF/B format. F i r s t versions havebeen transmitted to the other centers. New increased f i l e s are presently
prepared for transmission.
This l i b r a r y consists presently of thefollowing parts:
INDL/V: The main part, INDL/V, consists of various evaluations from varying o r i g i n . The data included were compifed by NDS or converted fromother formats into ENDF/B-5 format and thoroughly checked by the Checker
code and by graphical p l o t t i n g . The data included are documented in
IAEA-NDS-31. Most of the data are s t i l l partial evaluations for a given
reaction or in a limited energy range. Some are "complete" evaluations
for a l l the energy range up to 15 or 20 MeV. I t is hoped that we canfind means, through coordinated reasearch programmes, to increase thenumber of "complete" evaluations as to be useful for reactor calculations
and other projects.
IRDF-82: Some reactions from INDL/V were included, together with the
ENDF/B-5 dosimetry f i l e , i n the International Reactor Dosimetry File
IRDF-82, which is documented in IAEA-NDS-41.
INDL/A: The f i l e INDL/A is the working f i l e of the coordinated research
program on the intercomparison of evaluations of actinide neutron nuclear
data. The present contents is documented in IAEA-NDS-12 Rev.6. I t contains partial and complete actinide evaluations in the formats of
ENDF/B-4, ENDF/B-5, UKNDL and KEDAK. At the end of 1982 this l i b r a r yshould be finalized in ENDF/B-5 format.
INDL/R: INDL/V data containing resonance parameters w i l l be collected in
the form of 300K RECENT output in INDL/R.
INDL/V4: As a service to data requestors, INDL/V data should be available
also in ENDF/B-4 format.
INDL/X: This is an archival collection of superseded INDL/V data.

- 51 -

6. WRENDA (ML)The responsibility for WRENDA was taken over by N. DayDay in December
1980. He coordinated the update of the WRENDA master file and the publication of WRENDA 81/82. N. DayDay has left the NDS in February 1982.
Until his replacement arrives, M. Lammer has taken over the activities
temporarily. .
The "WRENDA Input Guide" , issued by D.W. Muir before his departure inJune 1980, was revised by N. DayDay and printed in August 1981 as
IAEA-NDS-35.
WRENDA 81/82 which was issued in August 1981 as INDC(SEC)-78,
reflects a number of changes since the publication of the previous
edition: 437 requests were withdrawn, 331 were modified and 271 new
requests added. The total number of requests related to fission reactor
technology is 1352, very nearly unchanged, while the number related tonuclear fusion has increased from 449 to 594.
The issue of WRENDA 83/84 is planned for the summer of 1983. The
data centres should therefore be receiving "country retrievals" in August
1982 to begin the next WRENDA update cycle. The deadline for the receipt
of updated requests at NDS will be 1 February 1983.
7. Fission Product Nuclear Data (FPND) (ML)The report series "Progress in Fission Product Nuclear Data" is published annually, starting with issue no. 1 in November 1975. Up to
December 1979 the information about activities in the field, measurements
and compilations/evaluations of FPND, contained in this series, was collected by G. Lammer. The activity is continued by M. Lammer since
January 1980.
Issue no. 7 was published as INDC(NDS)-116 in June 1981. The 8th
issue, to be published as INDC(NDS)-130 in June 1982, is under preparation. Invitation circulars for contributions were sent out at the beginning of April and a number of new potential contributors were contacted.
The first replies and contributions are arriving presently. The still
increasing interest in this report series can be illustrated by a few
numbers given below:
issue 5, 1979, INDC(NDS)-102: contributions: 81 pages, total: 91 pages
issue 6, 1980, INDC(NDS)-113: contributions: 119 pages, total: 134 pages
issue 7, 1981, INDC(NDS)-116: contributions: 153 pages, total: 166 pages
Also, the number of copies on P-distribution has increased from 303
in 1980 to 347 at present.

- 52 8. Interregional Project TC/INT/1/018 for Nuclear Data Techniques andInstrumentation which is designed for transfer of nuclear datatechnology to developing countries (NK).
The project was approved by the Technical Cooperation Subcommittee of
the IAEA Board of Governors in December 1980 and was incorporated into
the regular programme of the IAEA Technical Cooperation so far for theyears 1981 and 1982. 21 developing countries have applied and requested
IAEA support (fellowships, expert missions, targets and samples, auxiliary equipment) for participation in this interregional project. 5
developed countries are also participating in the project. The level ofthe laboratories in developing countries varies greatly from those whoare just installing neutron generators and are complete beginners to wery
well known neutron laboratories from Warsaw, Krakow, Zagreb, Debrecen,
Budapest etc.
The main purposes of the project are to help the beginning laboratories and to transfer the existing expertise in the nuclear data field tothe staff of these laboratories and to help the somewhat more advancedlaboratories to make further improvements and the necessary upgrading of
their -equipment.
The scope of work which is going on and will be continued in the near
future is to measure neutron nuclear data specified in the World Request
List for Nuclear Data (WRENDA), mainly reaction cross-sections, angularand energy distributions of the secondary particles. The project is now
only at the initial stage and it is not possible to give yet a list ofdetailed data which will be measured in the framework of the project.
Evaluations of nuclear data are also foreseen as part of the project work.
9. Meeti ngs
Summaries of NDS Meetings held in the past 18 months are included ina separate paper. This includes also a list of meetings planned in
1982/83.
10. INDC reports
Please refer to the document INDC(SEC)-76 giving an index to all INDC
reports. They continue to include progress reports from various
countries, reports of NDS meetings, translations into English fromselected USSR publications, and scientific papers from the NDS service
area.
Some recent reports of special interest to the Nuclear Reaction Data
Centers are:
INDC(NDS)-129: Proceedings of the IAEA Consultants Meeting on U and
Pu Isotope Resonance Parameters, Vienna 28 Sept - 2 Oct 1981
INDC(IND)-30: Proceedings of the Workshop on Nuclear Data Evaluation,
Processing and Testing, Kalpakkam, 4 - 5 Aug. 1981
Several reports on actinide neutron data evaluations and recommended
actinide half-lives.

- 53 SDO
05

ce

§•
£
o

Imclear Data Recruest Statistics(each step represents 3-year average)

=

o
sc

300

1D0

100

to

Data Request and Distribution Statistics 1965 - 198l
Year

Request Statistics
Experimental
Data

Evaluated
Data

Experimental
and Evaluated
Data

Documents

3
40

-

3
40

-

118
119
63
115

1965
1966

-

118
119

-

48

15

1971

95
76

20

1972

48

33
23

1973
1974
1975
1976

43

22

49

1967
1968
1969
1970

1977
1978
1979

III
1-4

-

109

(Number of Requests)

Other

Totalsper year

-

3

45

9

5
8

16

9

25
34
43

5
8
8
8

Combined Experimental and
Evaluated Data Distribution

TotalsTotal 8(Averaged over Cumulative
three years)

1
16
61
108
124
131
137
152

Data SetB
per Year3
48

Data Sets
Cumulative

73

73

138

211

183
327

474

605

560

1 ?45

420

403

1 648

577

857

2 505

737
876

2 300

4 813

'

7 274

12 087

^

1 001

8 001

20 160

1 141

5 427

25 595

1 350

8 472

34 O67

239
329

158
196
259

1 589

43 600

1 918

14 53315 100

135

144
93
157
160

60

24

71
65
73

43

49

92

114

34
45

43
49

77

153

94

+)

232

3
9
3

62

71

133

io

193

17

343

304

2 261

23 69187 391

63

93

156

21

95

269

314

2 530

36 807124 198

42
61

85

405

37 568161 766

M

1% 631

69

96

643
322

3 578

27

31
48

339
439

2 935

185

127
246

18
41

54
61

26

28

237
366
178

6
6

'Since 1978 this category contains exclusively computer programmes,
under documents.
+)This column: thereof multigroup libraries.

139
125
140
209

141
135

865

63 700all others, including bibliographies, are included

Fin
Swo
Den
U. S. S. R.

Ned

Pol

CDR
Germanyp.n.

csn
FranceHungary

Switz|(?uba|

Hex

JGual

Por Sfrain

1

Chile

Col Ven
Ecu
Ran
Brazil
Jol

I

Uru )

Yug
Italy

Rom

(hitm

Kor

Bui

,Tr,p
Dan

IVirkey
Van Libya

fib-leoGhena Nig

Egy
Sud

Jor

Isr

Iraq

Kenya

Kuv

South

S-Aob

Africa

Iran

Pak

IM3

Kor

Thai

India
Indon

Auntralia
NZ[ABA Nuclear Data Serviceo World Map (not for publication I)
The Bize of tho fields corresponds to the number of institutes that received nucloer data from, orsent nuclear data to the IAEA Nuolear Data Section. Periods 1979-19&1
Motei

USA, USSR and OECD countries including Japan havo their-ovn data centers so that IAEA services tocountries cover only a email fraction of their nuclear data a c t i v i t i e s .

I

- 56

-

11. Customer Services
The fourth issue of the Nuclear Data Newsletter has been issued witha distribution of 1800, thereof close to 600 upon explicit individual
requests from within the NDS service area, where an increasing number ofdeveloping countries (30 at present) shows active interest in nuclear
data. Correspondingly, there was a drastic increase in the number ofdata requests received and fulfilled per year, as shown in the attachedfigures.
The data-user oriented documentation of nuclear data libraries continued within the IAEA-NDS-documentation series.
The EXFOR computation format, which was longtime delayed at NDS isunder development, and graphical plots of experimental data together withevaluated data have been produced.
Graphical plotting from ENDF/B-format data has been done for many
files.
12. Programming and Systems Development (DEC + MS)
GeneralDuring this period an extensive system of programmes were implemented
in order to improve the reliability of the evaluated data distributed by
NDS; this included format and physics checking, graphic output, etc.
Work is now underway on an index system for all of our evaluated data, inorder to simplify information inquiries and to automate data retrieval.
Work on the computation format for experimental data has continued. The
production programmes for EXFOR, CINDA and WRENDA may be considered to becomplete and require only minor maintenance and improvements.
Photocomposition directly from the computer was extended to the text
pages of the CINDA book (introduction and explanatory appendices). An
extensive system to locate an up-to-date record of the location andmaintain the status of all reports, data bases, etc. is now underdevelopment; this is the Internal Report Indexing System (IRIS). Each ofthese topics will be discussed in detail below.
Card based data entry was completely phased out as of January 1981
and has been replaced by an IBM-5280 remote data entry system. The NDS
now has six video display units plus two remote data entry screens and aremote printer for output. Using this combination of resources, all programme development, data entry, data requests, on-line input and correction of data are performed remotely at NDS in a time sharing environment.
EXFOR Programming
The current EXFOR production programmes may be considered up-to-dateand only require a minimum of maintenance. The implementation of thecomputation format for experimental data has been progressing; the firstexamples of experimental data in the Nuclear Data Section's computation
format are now available.

- 57 Request and Dissemination Log System
The request log is designed to monitor the arrival of requests at NDS
as well as the processing of requests through NDS, in order to insurethat each request is answered on a timely basis. The dissemination log
is designed to monitor the flow of information out of NDS. Together, therequest and dissemination logs allow us to determine what types of
information are required by our users, and to quantify the output fromour centre.
During this period the entire request and dissemination log was
re-designed in order to improve and expand the information stored in thesystem as well as to improve the types of statistics which may be obtained from the system; in particular usage patterns by isotope, country,
type of data (e.g. experimental vs. evaluated), etc.
Further enhancements to the new system are envisaged and theirimplementation partly underway. These enhancements are automatization of
the data collection in order to reduce the manual processes to an absolute minimum.
WRENDA
The WRENDA programme system is essentially complete; minor maintenance and improvements were performed during this period, in particularin order to improve retrieval criteria and output sort orders.
The Data Index System
Instead of searching the large data files at NDS, many requests canbe more economically satisfied by searching relatively small data index
files in order to determine which data satisfy a given request. A Data
Index System which indexes all of NDS's data files has been implemented.
At present entries into the Data Index System are performed automaticallyfor all EXFOR data when a TRANS tape is merged into our EXFOR master file.
For EXFOR data it is possible to retrieve data by reaction (by eachindividual subfield), author, institute, energy range, etc. For the evaluated data, at present, retrieval is only possible for whole evaluations.
The index system is currently being extended to automate the handlingof evaluated data and to allow retrieval of evaluated data by reaction.
The Index System Data Base currently contains 55,680 records.
Profile System
NDS maintains a PROFILE system, consisting of a computerized file ofthe names, addresses and the areas of interest for each of the centre's
correspondents. Areas of interest are described by the use of one ormore distribution/interest codes. This file is used routinely to produce
reports, to selectively retrieve lists, or print address labels for themailing of publications and correspondence.

- 58 There are currently more than 4900 names and addresses stored in the
PROFILE system master file; last year approximately 600 names were added,
and about 200 corrections and/or changes per month were made.
During this period the newly revised system has remained stable andonly minor improvements were incorporated.
CINDA Programming
The system of CINDA programmes that are operational at NDS are used
to check new or revised entries, retrieve from the master library andproduce the CINDA book. The CINDA check and retrieval programmes haveremained rather stable over the years and only minor improvements havebeen performed.
The procedure and programs to produce transmission tapes have been
completely revised - all aspects now being under program control.
Also, the production of the CINDA book has been extensively revised.
While in the past only the main body of the CINDA book was produced byphotocomposition program, additional photocomposition programs have been
written and all relevant tables and text have been stored on-line, sothat now almost the entire book is produced automatically via photocomposition programs, greatly facilitating, of course, the modifications
to the text which are necessary from issue to issue. In the course ofthis revision, the format of the book itself was modified somewhat inorder to improve legibility.
Evaluated Data Processing
The growing number of evaluated data libraries (e.g. UKNDL, KEDAK,
ENDF/B etc.) requires that a growing number of programmes be maintained
and operated at NDS in order to allow for file maintenance, retrieval andcorrection of evaluated data. In addition, in order to allow the evaluated data to be used by our customers, the data handling programmes are
distributed with the data.
In order to avoid duplication of effort, programmes developed atother data centres are adopted for use at the NDS whenever possible. At
present NDS maintains and distributes to customers only elementary filehandling programmes. All requests for more complex programmes, such as
multigroup processors, are referred to the IAEA liaison officer at theComputer Progress Library of the NEA Data Bank.
During this period a number of computer programmes were implemented
at NDS. This bas allowed us to start introducing procedures to improve
the reliability of the evaluated data which is disseminated by NDS.
After these procedures have been fully implemented we shall be able
to check all new evaluated data both for format and physical content, andto produce graphical output of cross sections, energy and angular distributions. When minor problems are encountered the format or data can becorrected on-line and the action taken reported to the originating evaluator.

- 59 IRIS (Internal Report Indexing System)
This new system has been conceived and parts thereof implemented
during this period. The purpose of this system is to index all thevarious documents, reports, books, microfiches, data libraries,
processing programs, etc. kept at NDS. The system is designed, not only
to provide information as to the availability and location of all these
documents held at NDS (a series of keywords providing information as tothe contents or topic of the documents), but also to provide a crossreference between the various documents, data libraries and computer
processing codes. The IRIS data base will be used by other NDS Systems:
Request and Dissemination Systems and the various retrieval systems toautomate the data retrievals and the collection of statistics. As of
April 1982, this data base contains over 1,700 entries.

- 60 -

Appendix 5
CJD Progress Report
1. Since July- 1980 CJD has transmitted TRANS 4040-4043 with 58 newentries and 6 corrected entries to other centers. The total number of
entries transmitted up to now is 532. About 60 works are in the processof compiling.
2. In February 1981 a new computer EC 1033 was put into operation
at CJD. In this connection a lot of work has been done by the CJD's
specialists in order to study hardware and software of the new computer,and to put data libraries and data processing programmes into operation.
The EXFOR library programmes, a number of codes of nuclear crosssection calculations using theoretical models of nuclear reactions and a
few programmes associated with evaluated data libraries have been put
into operation at the new computer.
Further implementation of various programmes is in progress. At
the present time the following programmes are being put into operation:
the EXFOR checking programme (taken from NDS), the programme of data
conversion from EXFOR format into computational format, servicing
programmes of the ENDF/B-V library, programmes of producing groupconstants from libraries in ENDF/B format.
The study of Data Management Systems available in the USSR has
begun with a view towards implementation of a suitable system for dataprocessing at CJD's computer.
3. CJD continues the work on the development of nuclear data
evaluation methods using theoretical models of nuclear reactions. Great
attention is paid to the investigation of direct process contributions to
the reactions (n,n'),(n,p),(n,-y).
Now the file for chromium is revised and capture cross sections ofa number of fission products and transact!nide nuclides are analysed at
CJD.
The evaluation of (n,t) - reaction cross sections is under way.
CJD organises an activity on the analysis of available evaluated data
files suitable for inclusion in its recommended data library.
240

CJD received the new versions of the fullPu from Minsk.

files for 239pu>

In 1981 the collections VANT, series "Nuclear Constants", NN 40-44
were issued. The number of requests on nuclear data is about 120 - 130
annualy.

- 61 -At CJD the f o l l o w i n g programmes assosciated w i t h ENDF/B-V format
have been implemented: CHECKER, CRECT, FIZKON, PSYCHE, RESEND, INTEND,INTER, SUMRIZ. Programmes f o r r e t r i e v i n g data from l i b r a r i e s i n ENDF/B
format have been developed.
The system of programmes RECENT, NJOY
( p a r t l y ) , GRUKON (developed i n FED has been adapted at the EC-1033
computer producing group constants.

- 62 Appendix 6
Translated from Russian
The Activities of the Atomic Nuclear Structure and Nuclear
Data Centre (CaJaDT(Operated by the State Committee on the utilization of
Atomic Energy) on the Collection and Dissemination ofCharged Particle Nuclear Reaction Data
G.M. Zhuravleva, N.V. Timofeeva, F.E. Chukreev

This report covers the period from August 1980 through April 1982.
1.
During this period the Centre has prepared and transmitted to the
network of Centres magnetic tapes A005, A006 and A007 containing
numerical data from 27 publications.
2.
Carrying out Action 14(33) (cf. Ref. [1]), i.e. to give the highest
priority to the compilation of those data which satisfy the requests
expressed at specialists meetings, the Centre has compiled data from anumber of works by Soviet researchers who have studied (p,n) reactions.
We could also transmit our compilations of some American papers on thissubject, since we have the relevant experimental data in our internal
format. The (p,n) reaction is not the only example. In the course ofsatisfying the requests of Soviet scientists we select and compile datafrom world literature, but we transmit to the network of Centres only the
result of Soviet research. Thus, for example, we have compiled a numberof reactions with lithium ions. The results of Soviet research have beentransmitted by us to colleagues throughout the network of Centres, while
the American results are available in the internal format of our Centre.
The transmission of foreign data is restricted by the well-known
rule (cf. item B3 of the "Protocol") which states that regulartransmission of EXFOR data from any one Centre shall include data only
from its own service area.
It seems that we should all be considering how Rule B3 can be so
amended as to avoid duplication of compilation work by different Centreson the same publications.
3.
We note with regret that so far there has been no significant
progress in describing excited states of nuclei and the associated lackof logic of certain items in EXFOR Dictionary 27. In particular this
dictionary lacks indications of the existence of isomeric states in thecase of nuclei having normal millisecond isomers. On the other hand, inthe case of a number of nuclei (e.g. the nuclides of americium) an
indication is given of the existence of spontaneous fission isomers withvery short half-lives.

- 63 4.
During the period covered by the report our Centre prepared replies
to approximately one hundred requests for data on nuclear reactions.
Ref. [1] INDC(NDS)-125, Vienna, June 1981.

- 64Appendix 7
THE ACTIVITIES OF THE MSU DTP CDFE.
V.V.Varlamov, B.S.Ishkhanov, A.N.Panov, A.P.Chernyaev.
V.V. Surgutanov
The present communication surveys the CDFE activity since themiddle of 1980 till the end of 1981.
Within the CDFE program work was done along the following mainlines:
1. Bibliographic activity.
We continued to collect, systematize and disseminate the b i b l i o graphic information about the experimental photonuclear works publishedin the USSR and abroad in the periodical literature. The MSU publishers
have turned out and sent to organizations and persons concerned, theCDFE Information Bulletin N 4 "Photonuclear Data - 198011 covering works
devoted to the study of nuclear reactions induced by photons, e l e c t rons and the processes of radiation capture in the nuclear excitationenergy region between the nucleon and meson thresholds. The Bulletin
contains information about the works themselves, features of experimental procedures, main results obtained, bibliography and abstracts,
and also the author^s index*
The bibliographic Index "Photonuclear Data 1976 - 1980" has been
completed and i s ready for publication.
In the CDFE a computer-aided bibliography of experimental photonuclear works so far published in the s c i e n t i f i c literature has been
compiled. The bibliography makes use of the BIB format specially designed in the CDFE. Information about the works i s given out in theform close to that of the table of CDFE Information bulletins.
2. Compilation of data ***< the "rorpQfi format.
We have prepared and sent to the IAEA the exchange magnetic tape
MQ02 ( t o t a l number of works 26, subworks 181, recording points 12248)
with photonuclear data taken.from works of soviet authors. Work on thetape M003 containing data from 25 studies has been finished.
Along with the current compilation of data from newly publishedworks, the CDFE i s concerned with setting up thematic computer libraries of data on definite branches of photonuclear reaction physics.
3. Development of specialized softwarer
Sets of special programs permitting the work with computer files
and various libraries (including international) are being developed
and realized using Unified Series Computers.
At the present time, the CDFE is capable of effectively handlingthe data in the formats ETFOE, ENSDF and BIB (CDFE's internal format).
All data are unified within the CDFE Information search system.
To ensure work on the compilation of data published in the fraphi-

cal form, which could not for various reasons be promptly preparedby the authors directly in the digital form, the CDFE Information
search system is supplemented with an automated system for digitizing
the graphical information, which is based on the use of an on-line
complex consisting of a- coordinate-surveying table and a mini-computer,
3» Organizing activity.
The CDFE coordinates scientific research and renders help to theinterested organizations in the practical utilization of data of pho—tonuclear experiments. In the order to increase the efficiency of thisactivity, an All-Union Conference on the problems of use of photODUclear data was held in 1931* Annual holding of such conferences isplanned.

- 66 -RLSRUHE

information

CHARGEDk RTICLE

UROUP
K E

R N

F 0 R • C M

U N G S Z E N T R U M•

D - 7 1 0 0

K A R L S R U H E> O S T F A C H

3 * 4 0• T E L E X

7 l 7 * - « » *12.2.1982/Ki
Memo CP-B/33
Subject: Trans BOH
This memo w i l l be the last Kachapag-memo, since as you a l l know, Kachapag
had to f i n i s h i t s a c t i v i t i e s by the end of 1981.
Under separate cover the l a s t transtape BOH is distributed to the cooperating
centers. I t contains- 6 CAOaD-entries with alterations as agreed with CAJaD- 5 corrected Kachapag-entries B 81, 113,114, 115, 118- 35 new Kachapag-entries B 146 to B 180.
The whole f i l e as well as the data in

our computational format (KARDIF) w i l lbe transmitted to and stored by 1AEA/NDS. Furthermore some programs to
produce and maintain t h i s computational format w i l l be transferred to NDS,
too.

The f i l e KARDIF contains also integral data from the CPX-file according

to the permission given by Dr. McGowan. In addition we want to inform thata l l data contained in the f i l e s w i l l be printed in the Physics Data 15
series. Volume 5 w i l l contain the last Kachapag entries and in addition ashort-handed version of the CPX-data implemented in the f i l e . The updated
index-volume presents most of the excitation functions contained in Physics
Data in graphical form condensed in 400 figures.
We hope that a l l volumes w i l l be available in summer 1982.
F i n a l l y , we want to thank a l l colleagues from the other centers for the
good, f r u i t f u l , and f r i e n d l ycooperation during the past years. We hope that

whoever of you w i l l be in the region of Karlsruhe w i l l spent at least a few
hours for a v i s i t in our group, which w i l l concentrate now in surface analysis

- 67 -

activities within the institute of radiochemistry. Nevertheless, the production of the Chart of Nuciides will be continued in our group as announced
formerly.

Fach-

infbrrnationszentrum

Energie • PnystK • MatnematiK • BmpH

3O.4.B2JK ENERGIE PKi'SIK MSTKEMXTCK
Karlsruhe, Federal Republic of Germany
K. Behrens
Status Report
Within the network of the Nuclear Reaction Dat£ Centers the centers of theFederal Republic of Germany contributing to the charged narticle nuclear datacompilation were
for ccrapilLatian and evaluation:- the "Institut fur Radiochemie, Kemfarschungszentruni Karlsruhe" andthe "Technische Hochschule Darmstadt" (the latter supported financially by
the FachinformationszentruirOand far the production of -the printed version:- Fachinformationszentrum Energie Physik Mathematik GchK-(FTZ) ,the main manpower, of course, going into the compilation and evaluation work.
The result was the "Kachapag" File and the "Kachapag" printed data conpilation
which contained integral- cross sections of charged particle nuclear reaction
data..
Because of financial restrictions, the Nuclear Research Centre Karlsruhe was
not able to supply tt»e manpower anymore far these activities. For the same
reasons, .the Facninfonnationszentrum was not able to take over the workload
vacated by the withdrawal of the Nuclear Research Centre. Thus, there wasno alternative but to conclude the KACHftPAG activities by the end of 1981.
The last-up-to-date tape was distributed around that date. As far as the printed
products are concerned, three more volumes of tine series "Physics Data" No. 15
and one index are still to come. They are arranged as follows:
1. An edition with all entries carolled so far in the volumes 15-3 up to
15-5.
2. Volume 15-5, containing in addition entries of the CPX file
3. An index, containing in addition a number of graphics describing the
behaviour of cross sections.
These volumes are in print and will be published within the next three months.
Tnis will be the end of the contributions of the Federal Republic of Germany.
We regret this very much. The Fachinformationszentrum, however, still makes
efforts to find ways to restart these activities, unfortunately no definitive
statement can be made yet as to the outcome.

- 69 Appendix 10

H.D. Lemmel + 0. Schwerer;

Exfor statistics

26 January 1982

Statistics of theExperimental neutron data file EXFOR

The following tables show Exfor statistics by year of experiment andgeographical area, for experimental neutron data.

Warning.
The statistics should be treated with caution.
A bomb-shot
experiment yielding hundred thousand data points at once cannot be compared with precision measurement of a single data point of basic importance as standard reference value.

Some conclusions:1.

In all areas there was a peak of experiments ("data sets") in the
period 1966-1970, however a peak of "data points" in the period 19711975. This corresponds to a significant increase in the size of an
Exfor entry, i.e. the average number of "data points" per "data set".

2.

There seems to be some decrease in the experimental neutron data
activities for the period 1976-1980. However, one must stress, thatfor the last years the figures are not yet final because the compilation is not yet complete. Many more data for the 1976-80 period are,particularly, expected from USSR, but probably also from the otherareas.

3.

If there is a noticeable trend to decreasing Exfor statistics for thelast five years (subject to completion of compilation), one must realize on the other hand that there is a significant change in theexperimental goal: there is a trend from measuring "many data"(around 1970) towards "higher precision data" at present.
It seems
therefore, that the experimental efforts are likely to remain constant, even if the Exfor statistics decrease.

4.

A decrease in Exfor statistics seems to be most evident
certainly not in the developing countries.

5.

The data contributed by different countries give different results,
depending whether the file is analyzed by "data sets", "data index
entries", or "data points". Explanation: In a "data set" two nuclear
reactions may have been measured simultaneously (• 2 "data index
entries") at 100 different energies or angles (• 100 "data points").

6.

The developing countries contribute 12 to 14% of the experimental
data sets.
Counting the number of data points, the developed
countries are dominating due to some large facilities producing ten
thousands of data points in a highly automated manner.

in USA but

- 70 -

Experimental neutron data file EXFOR
Period 1971 - 1980

Contributions from

USA

West
Europe+JapanUSSR

othercountries

Total

data sets

4.243
= 33%

4.903
- 38%

1.950
= 15%

1.856
= 14%

12.952• 100%

data index
entries

6.950
= 30%

10.023
= 43%

3.529
= 15%

2.747
= 12%

23.249= 100%

data points

756.000= 53%

552.000- 38%

82.000« 6%

40.0001.430.000• 100%= 3%

Experimental neutron data file EXFOR

Number of "data sets" by geographical area and year of experiment

USA

West
Europe•JapanUSSR

othercountries

1936 - 40

45

-

-

-

45

1941 - 45

52

13

-

-

65

1946 - 50

797

75

-

-

872

1951 - 55

1 .985

266

110

15

2.376

1956 - 60

2.514

835

589

69

4.007

1961 - 65

2.456

1.427

1.151

591

5.625

1966 - 70

3.005

3.198

1.556

1.264

9.023

1971 - 75

2 .930

2.646

1.300

826

7.702

1976 - 80 *1 .313

2.257

650

1.030

5.250

Total

15.097

10.717
- 31%

5.356
- 15%

3.795
= 11%

34.965= 100%

43%

*

Total

For the last years, additional data that are being processed, were
not yet included in the statistics.

- 72 -

Experimental neutron data file EXFOR

Number of "data index entries" by geographical area and year of experiment

USA

*

West
Europe+JapanUSSR

othercountries

Total

-

-

-

31

1936 - 40

31

1941 - 45

56

14

-

-

70

1946 - 50

869

76

-

-

945

1951 - 55

2.246

313

113

15

2.687

1956 - 60

3.170

984

601

72

4.827

1961 - 65

2.985

1.683

1.222

634

6.524

1966 - 70

3.651

3.859

1.701

1.450

10.6611971 - 75

3.636

3.650

1.802

1.063

10.151

1976 - 80 *

3.314

6.373

1.727

1.684

13.098

Total

19.958= 41%

16.952
= 35%

7.166
= 15%

4.918
= 10%

48.994

For the last years, additional data that are being processed, were
not yet included in the statistics.

- 73 -

Experimental neutron data file EXFOR

Number of "data points" by geographical area and year of experiment

USA

West
Europe•JapanUSSR

othercountries

Total

1936 - 40

46

7

-

-

53

1941 - 45

237

77

-

-

314

1946 - 50

6.000

294

-

-

6.000

1951 - 55

30.000

4.000

4.000

87

38.0001956 - 60

65.000

9.000

3.000

183

77.0001961 - 65

156.000

57.00015.0003.000

231.000

1966 - 70

265.000

348.000

32.00015.000660.000

1971 - 75

517.000

369.000

29.00026.000941.000

1976 - 80 *239.000

183.000

53.00014.000489.000

1.278.000- 52%

970.000= 40%

135.000= 6%

58.000= 2%

2.44 MioTotal

For the last years, additional data that are being processed, were
not yet included in the statistics.

- 74 -

Charged-Particle Data File EXFORAt the end of. 1981 the EXFOR
heavy-ion reaction data consisted of
2206
912
710
114
6
Total 3948

subfileforcharged-particle

anddata sets compiled by KACHAPAG
data sets compiled by USSR
data sets compiled by USA
data sets compiled by IAEA
data sets compiled by Japan
data sets with nearly 50 000 data points.

KACHAPAG
and
USSR
were
mainlyconcentratingon
integralcharged-particle nuclear data used for activation techniques and isotope
production.
USA and IAEA were mainly, but not only, engaged
charged-particle nuclear data of neutron-source reactions.

incompiling

Japan is planning to join by compiling differential charged-particle
nuclear data of primary interest to theoretical nuclear physics.

- 75 Appendix 11
Importance for compilation of selected
CPND and Photonuciear Data
K. Okamoto
Items

No. of Reactions

RI production
for biomed. appl.

Neutron source

" 50

" 10
2H(d,n) lH(t,n), 3 H(p,n),3
H(d,n), 2 H[t,n),Remarks
mostly daughter nuclei
as specified in
INDC(NDS)-123.5 and 15
in addition* N(p,n) 0
and 78 Se(p,n) 78 Br
mainly monoenergetic
source7

Li(p,n),4$s c (p,n),V(p,n),9Be(p,n) + others+ 3 H(t,n) + spallation n-sources
51

Cancer therapy" 20
charged particle reactions on
tissue (H, C, N, 0 + others)

Fusion CPND

reactions for secondary CP (p,d,o,t..) in
neutron therapy

neutron source properties forneutron therapy

for example, the crosssection and the angularand energy distributionof the emitted neutrons
for 9Be(o,n)

charged particle reactions for
DT, advanced and exotic3 fuels
D-D, p-T, D-T, T-T D- He,
T-3He, 3He-3He,3 D-*He,
D-6L1,
D-6u, He-$Li,&
6 ,D-7L1, D-7
p-IOB, p-ll
etc.

33 He-3He,p-6Li,
He-6Li,p-9Be and
p_llB are so called"clean" fusion plasma
reactions with small or
neglible neutron emission<Vo> fusion reaction rateover a Maxwellian distr.
of reacting ions asfunction 3 of ion temp.(KT)(Unit cm /sec) is to be
included.
Ref. EXFOR D0016 andothers.
Memo CP-D/82

- 76 -

Items
Neutron product.

Material analysis

No. of Reactions
many (a,n) and others

Nuclear physics

as general(a,n) for fusion reactor fuelcycle, (fuelreprocessing)
OL1, B, l 3 C, l 4 N,
Nato, 17.180, 19F, Mg,
Si, etc.

up to A = 40
(because high (a,n)
threshold)(a,n) for safeguards(non destructive analysis)
JL1,
9Be, C, 0, 19F. Mg
27
A1, Ca, etc.

a energy
100 keV " 6 . 5 MeV

many

activation half-lifeof products between"day" and "sec"mostly e", p, low Z
particle reactions

Astrophysics

Proton scattering

Remarks

whole A range as target

all Z, A

supplementing neutron
data
Ref. A.B. Smithfor nuclear structure;detailed level scheme(d,p), (d.pf) and (p,d)
as useful information for theequivalent (n,y), (n,f) and(n,2n)

entry for CINDA

Inverse react.

a few, suchas 13 C(a,n) 16 0
3
3H(p,n) He

entry for CINDA

CP fiss. react" 20(d.pf) and other selectedreactions"negative" energy

PIXE, DIXE

many

proton (deuteron)induced X ray emission

- 77 -

Items

No. of Reactions

Photo-fission

Remarks
entry for CINDA

ly <_ 1 5 MeV
RI production
for biomed. appl.

a few (y.n) reactions
such asJfC(Tcross-section and y i e l dS*wierk, 13th April, 1982

- 78 Appendix 12

Nuclear Data Section
IAEA
Vienna

Re: EZFORI am much obliged for your EXPOF: retrieval from 19th Feb.,
28

concerning

Si/n,p/ and

1S1

Ta/n,2n/ reactions which I got after

our liaison-officer Mrs. K. Stankiewicz request. I find it much
useful in our evaluation work concerning mentioned reactions* As
my compilation on this topic based on direct literature search isat this moment enough advanced, comparing ny notes with the EXFOR
files I was able to collect some remarks, questions and corrections:
1, General remark: Prom the user's point of view I find excellent
the content of more recent entries where I feel I need not tolook into the original paper to get all details tttiich could havesome effect in evaluation procedure. This is not the case forthose entries which are "translated from SCISRS".
2. There are some errors /if I am not wrong/:
EXFOR 11645.024 /Prestwood/: In comparison with the original paper there are tr/o lacking energy- and sigaa values /at 12.13 and13.52 XeV/ and an erroneous sigma error at 14.50 HeV: 36 mb instead of 56. I am not able to check whether the first mentioned
omissions are not repeated for other reactions studied /othersub-accession numbers/.
EXFOR 11263 /Strain/: There is an obvious error chain in LI01TIT0R:
Should be: 118 mb for Al, 250 mb for Si and 550 21b for Cu. Sourceof error: SCISRS?
/riisra/: "STATUS: Data taken from the abstract" /?!/
But there is a significant difference: in the abstract sigaa value
181
for
Ta/n,2n/ equals 900 mb /s&T»e in 30507.004/ while in the

- 7? Table 2 it equals 530 no, and only the authors could clear this up.
As in the reprint I got fron the authors I sss soae hand-vrrittencorrections and I find sone other errors /both in Table 2 and in
References/ I would adrise to contact the authors to find "theabsolute truth".
2£ / G i l 0 S e/: Energy value given in the TITLE is 8.4 HeY
while in subsntry .003 in DATA TA2LZ: B.6 UeV. Original report
Laccesible, even not
IAEA/TA-139O is not)referenced except 2Z?0R and CIEDA-81 - no way
to check. Could you help?
ZI?0R 21535 /Akiyoshi/: I have gotten two subentries .009 and .012
which differ from each other by sigma value only: 1.79 and 1.80 b.
Comparing with the original paper I find that probably the 1.80
value and the whole .012 subentry should be ascribed to /n,n*/rather than to /n,2n/ reaction.

!iZ2£L££££i£I£i: * presume the retrievals are autoaatically takenfrom the master file. In this context I wonder why I did not get161
in my retrieval on

Ta /n,2n/ reaction the entries Ho.

11097 /Ashby 1958/
11223 /Rosen 1957/
30264 /Araminowiez 1973/- accession numbers taken from CIUDA. Having access to original papers I am interested in alterations only /if any/ - and in the
problem itself.
Two next observations concern retrieval of 17th Sept. 1979 /for myformer evaluation/ and perhaps the errors do not exist now:
5ZF0R 30032 /Csikai/: Throughout the .003 subentry Ag-109 should
read Ag-107 and respectively ig-108 should read 106. This error
does not appear in CII7DA-A. Z!y information is based on typewritten
data table /according to AT0!ZZ KBzl. 8 /66/ 79/ obtained fromProf. Csikai.
SXPOR 61208/If not deleted/: In my opinion this entry should be
withdrawn as obsolete, uncomplete /no authors, no details/ andmaking confusions. It contains a very early version of Llannhart andVonach results. In EXFOR 20611.012 /after 7 years/ the same numerical data are given in absolute scale, with some corrections.

•- 80 -At least cross-references should be given, if I am right.

3«

No" a question: Compilation and evaluation process takes some months.
Would I be allowed to ask once mors for the 2XF0R retrievals at theend of our work /not now!/ - to be sure that the evaluation is really
up-to-date?

He: IEDF
We have received your IR2F-82 report, which contains our reprocessed
evaluation of ^Ka/a, 2n/ reaction cross section /L.Adamski, LI.Heraan.,
A.SIarcinkor/ski/. We call the attention of the IBDF authors that theyused the data contained in the P^os^ess^regort II3R-1BO9 while thefinal_version with slightly changed numerical data appeared later
as IKE-1885 report.

Sincerely yours
IT. Adanski

Lesiaw ADA1TSKI
Kuclear Data Group
IX-A
Institute of Nuclear Research
05-400 Otwock-Swierk, Poland

- 81 Appendix 13
EXFOR Computation Format
Status ReportbyDermott E. Cull en
andOtto Schwerer

At the present time the Nuclear Data Section isexperimenting with a computer program that translates EXFOR
formatted data into the Nuclear Data Section experimental data
computation format.
Presently this computer program is capable oftranslating cross sections, angular distributions and energy
distributions to the Nuclear Data Section computation format. This
format, which is described in detail in NDS Memo 408, is a fixed
field, fixed unit, format which simplifies the use of experimental
data in evaluation.
On the following two pages examples are given of data in
the EXFOR and Nuclear Data Section computation format. This is arather simple example of a "5l)(n,2n) measurement. The original
data which is given in the EXFOR format in MeV and Barns isconverted for use in the computation format to the standard ENDF/B
units of eV and Barns and the EXFOR reaction of (n,2n) cross section
is replaced by the ENDF/B convention of MF«3 (cross section) and MT«
16((n,2n)).
Next plots are presented of just the EXFOR data and thena plot of the EXFOR data compared to the corresponding ENDF/B-IV
data.
Finally two additional examples are given comparing
EXFOR subentries to the corresponding ENDF/B-IV evaluated data.
In the near future this computation format can be used
for author proofs (to improve the quality of the data in EXFOR) as
well as to answer requests from users of experimental data forevaluation.

:XFOR en-try 2156S ir. standard format

ENTRY
SUSEWT
Bit
REFERENCE

21566
21565001

8006128006122156800000001
2156800100001
2156800100002
t. J - N S E , 7'4, 2 9 . 8 0 0 4 :•2156800100003< ui, FREHAUT, 60060s? -• LETTEF: OP FREHAU7 •2156800100004
TITLE-MEASUREMENT OF THE U-235<K*2N> CROSS SECTION BETWEEN 2156800100005
TRESHOLD AND 13 MEV.2156800100006
AUTHOR(. J. FREHAUT , A. BEKTIN, R. BO IS >2156800100007
INSTITUTE<2FR B R O SERVICE DE PHYSIQUE NEUTRONIQUE ET
2156800100008
N.UCLEAIRE,
21568.00100009
FACILITY<VDGT,2FR BRC) 14 MEV TANDEM VAN HE GRAAFF,
215680010003 0
2.5 M K Z , PULSE WIDTH 2 N S .
2156800100011
N-SOURCE(r-'-T > PROTON-TRITIUM REACTION ON GASEOUS TARGET.
2156800100012<STANK> LARGE CD-LOADED LIQUID SCINTILLATOR.
2156800100013
DETECTOREFFICIENCY ABOUT 7 5 . PERC.
2156800100014
PART-DET<N) NEUTRONS.
2156800100015
SAMPLE.METALLIC ENRICHED SAMPLE. DISK OF 25 MM DIAM..
2156800100016
ABOUT 15 GRAMS.
2156800100017
CORRECTION .BACKGROUND, DEAD TIME, EFFICIENCY, MULTIPLE
21568001000ie
EVENTS/ FISSION EVENTS UITH A MULTIPLICITY OF
2156800100019
2 NEUTRONS,
2156800100020
ERR-ANALYS .STATISTICAL ERROR ONLY. NO CONTRIBUTION FOR THE
2156800100023
REFERENCE MONITOR REACTION,
2156800100022
ANALYSIS.DETERMINATION OF THE NEUTRON MULTIPLICITY
2156800100023
DISTRIBUTION FOR THE DETECTED EVENTS.
2156800100024'STATUS• TEXT, N S E , 7-4(1980)29.
2156800100025
HISTORY<800609C) G.C.
21560001OOO26<8OO612E>
2156800100027
ENDBIB
02156800100028
NOCOMMON002156800100029
ENDSUBENT
0_2_156800199999
28
2156800200001
21568002
800612SUBENT
2156800200002
48BIB2156800200003(92-U-235 < N,2N)92-U-234,,SIG)
REACTION
21568O02OOOO*<92-U-235<N,F>,,SIG> TAKEN FROM ENDF-B-5.
MONITOR
2156800200005
DETECTOR EFFICIENCY DETERMINED RELATIVE TO THE
2156800200006
AVERAGE NUMBER OF PROMPT NEUTRONS PER SPONTANEOUS
2156800200007'FISSION OF CF-2E
TAKEN AS 3.732.
2156800200008
STATUS•TABLE 1, NSE,74,29.
2156800200009
HISTORY< 8OO6O9C > G.C.
2156800200010<B00612E>
2156800200011
ENDBIB802156800200012
0NOCOMMON
02156800200013
DATA
16
2156800200014
DATA
MDNIT
DATA-ERREN
EN-RSL
2156800200015
h
B
MEV
MEV
B
er —n-v
2156800200016
0.0O4
1 .060W * fw
0. 0900.024
2156800200017
0.126
5.9S
1.112
0.023
0.090
0.273
21568002000IS
6.49
1 .3640.030
0.085.0.3552156800200019
7.01
1.553
0.O32
0.030
0.463
2156800200020
1,720
0.034
0.075
0.482
2156800200021
S.03
1.782
O.038
0,075
0.614
2156800200022
1. 7G20..052
S. 54
0.070
0.642
2156800200023
1.770
O.O43
9.04
0.065
O•734
2156800200024
1,760
O.O4B
9.55
0 .0650.772
2156800200025
1. 746
O.055
10,06
O. O6O
O.775
2156800200026
1 .737
O.055
10.5&
0.O60
0.857
2156800200027
1.732
O.066
11.07
0.055
0.870
2156800200028
1.734
0.071
11.57
0.055
0.857
2156800200029
o.0B5
12, O80.055
0.863
2156800200030
- 640
0.1O9
12.5c
0.050
0.717
2156800200031
, 930
0.110
13.09
0.050
2156S00200032
IB
2J 56800299999
ENDSUBENT
21

- 83 -

Numerical data of EXFOR 21568 in computational format

njuJuiLi
a.
z. -z.
z. z. z: z-z.
z. a x. a.
a.z:
z.z.
a. a.a.
tz a.
& a.
ii~ li~ ITS ]i~ 10 u~ ii~ ii~ SO it'i 111 ii"5 b~ t~ IB 10
Pi f-1 PJ PJ Pi Pi Pi PJ Pi PJ f J Pi PJ Pi Pi M

ECECSSESEBGBS68B
in K if;fc'jK m in ift ii"; ifi i i « \n Vi K ifl
pi pi K p; pj ri r-i PJ N pj « a n ri PI «T KJ © pj terirsEKK«FiiftK)-j r. ^re«rejo j ^ gs u-j -c r- s e -*© © © © © © © © © © © © © © © ©

*r 3 !*3 ii")roPJ <r rj ^ PJ K5 r>- © r~ w J^
© r-j "•• ii^ -c JB ^ ^ ?<J r*- r- so f» n < »<©©©©©©©©©©©©©©©©

©©©©©©©©©© o©o© ©©
0 © © © © © 0 © © © 0 © 0 © © ©
© © © © © © o o © © o © o © © ©

ooooooooooocooc©
© © ii~ © Si"3 n O n L"5 O Ofc"S!/3 f5 © ©
^s 0* S3* CD ^* i^ f^ *C ^3 *Q ^ ii^ *»* 10 1^ 10© © © © © © © © ©

• • • .

.

..

• «© © o o o © p© © © © © © © © © © © © © © © ©
© © © © © © © © © © © © © © © ©
© 0 © © 0 © © © © © © 0 © © 0 0
MSO»i-!rj»0«"VI/3©iO©lO©IO©
P- 0* V © LO © 10 © 10 © © ~* r* PJ Pi M
© © © © © © © o © © © © © © © ©
^w ^C ^0 ^O ^0 ^0 ^C ^C ^0 ^0 ^C ^0 ^Q ^Q ^0 ^0

ton nnnnfO
MPJ PJ PJ PJ PJ PJ
PJ Pi PJ PJ PJ CiKPJ
PJKPJHPJPJ PJ PJ pj PJ PJ PJ PJ PJ PJ PJ PJ .PJ PJ Pi PJ

to0 C O C C C O C C C 0 { > C C S > f >© 0 © © O C O C O © © 0 0 © 0 ©

- 84 -

U-235(n,2n)U-234
900-jI
800700600-1

u

500-

CD

(/)

in

v> 400-I

300200-Legend1005

75 Frehaut

6

7

8

9

10

11 12 13 U

15Energy(MeV)

U-235(n,2n)U-234
900800700600500-

u
9
V)
W
O

400-

6 300200-

Legend100-

A 75 Fr«haut
ZHDF/B-IV

5

6

7

B

9

10

11 12 13 U

Energy(MeV)15

U--235(n,2n)U-234
900

800

•
c
o
CD
VJ1

-I—

u
V)
(/)

O

Legendo

A 75 Frehaut
x 80 FrehaulCln 72 Mather
ENDF/D-IV

8

9

10

11

Energy(MeV)

12

V

13

r
14

15

- 86 -

AI-27(n,t)Mg-25
16-

14-

12-

q «H
©
V)

m
tn

8

B6-

LegendA Ei Poularlkos
x B1 Oalm
D 75 Biro2-

B 79 Sudor£NPF/B-IV

11

12

13

14 15 16 17
Energy(MeV)

18

19

20

Fe-56(n,p)Mn-56
120-

110-

100-

f

90-

BO-i
in
O

70-

o
60-

Legend* U Chl-Chou76
x Ryv»»76
6451

50-

4012

13

U

IS
16
17
ErvergyfMeV)

IB

19

20

- 87 Appendix It

GSISRS Users Manual
Table of Contents

1..

Introduction
Nuclear Rection Data System
Summery of Retrieval Formats
Bibliographic Retrievals
D2ta Retrievals
Tape Formats
List Formats
Plot Formats

1-1
1-1
1-2
1-2
1-3
1-3
1-3

2. Eibliographic References
Neutron Data
Example of a CINDA Retrieval
Charged-Particle Data
Example of a CPBIB r e t r i e v a l

2-1
2-2
2-3
2-U

3. EXFOR Format
Introduction
EXFOR F i l e Format
Record Identification
Permitted Character Set
System I d e n t i f i e r s
BIB Section
COMMON and DATA Sections
Repetition of Colann Headings
CCMMON Section
DATA Section
Field Sequence of a Data Table
Line Sequence of a Data Table
Pointers
Multiple Reaction Formalism
BIB/BIB Links
BIB/DATA Links
Alternative Results
Dictionaries
Coding for Nuclides and Compounds
Information-Identifier Keywords - Detail
Example of ar. EX?OR Retrieval

3-1
3-2
3-3
3-3
3-4
3-7
3-10
3-11
3-12
3-12
3-13
3-13
3-1«
3-1^
3-15
3-15
3-15
3-16
3-17
3-17
3-3^

•

CSISRS Users Manual

4. Computation Format
Introduction
Types of Computation Formats
Self-Contained-Line Format
Data Table Format
Resonance Parameter Format

4-1
4-1
4-3
4-5
4-7

5. List Formats
6. Plots
7. User Codes
Appendix A: Cooperating Nuclear Reaction Data Centers
Appendix B: Dictionaries

page i i

- 89 -

CHAPTER 1
INTRODUCTION

N u c l e a r R e a c t i o n Data System
The Nuclear R e a c t i o n Data S t o r a g e and R e t r i e v a l
System a t t h e N a t i o n a l
Nuclear Data Center (H.N.D.C.)
c o n s i s t s o f d a t a f o r , and b i b l i o g r a p h i creferences t o , nuclear reaction data induced by neutrons, charged particles
and gammas.
The data are obtained through compilation efforts at the M.N.D.C.
andthrough an exchange agreement with the data compilation centers included in
the Nuclear Reaction Data Network. A l i s t of participating centers and theareas they service i s given in Appendix A.
Retrievals may be made from the system of either bibliographic
references
to the data or of the data i t s e l f . The remainder of t h i s chapter outlines
the general retrieval c r i t e r i a and output formats presently in use. Sample
retrieval output i s found in Appendix B at the end of t h i s manual.
Summary of available retrieval

formats

Bibliographic References:
Neutron data formats
Charged particle data formats
Point Data:
Tape:

EXFCR format
Line Computation Format
Table Computation Format
Printout: Any of the above tape formats
Expanded l i s t format

Plots:

Individual plots by reference
Plots grouped by reaction

race '— cBibliographic References
Bibliographic retrievals nay be mace using any conicinaticr; c: Che following
criteria:- Target nucleus Z- Target nucleus A- Incident projectile- Process (reaction, outgoing particles; considered- Parameter (aspect of process) considerede.g., cross section, resonance integral, etc.
- Energy range- Reference cutoff date
- Laboratory- Work typee . g . , experimental, evaluated
The output is available as l i s t i n g s or on tape in the formats described
Chapter 3 for neutron data and charged-particle data.

in

Data Retrievals
Reaction data may be retrieved
criteria:using

any combinationof the following- Target nucleus Z- Target nucleus A- Incident projectile- Process (reaction, outgoing particles) considered- Parameter (aspect of process) considered,e.g., cross sectio.n, resonance integral, etc.
- Reaction Product- Energy range
The output is available in any of the formats outlined on the following
page and will be accompanied by a l i s t i n g of the index to the data sets
retrieved.

INTRODUCTION- 91 -

Page

Tape Formats
1.

EXFOR format ( s e e Chapter 3 f o r d e t a i l e d
All data is available in this format.
-

2.

specifications).

80-character record lengthreference oriented
flexible format
complete set of experimental information

Line Computation Format (see Chapter 4 for detailed
specifications).
Cross-sections,angulardistributions,resonance parameters andfission-product yields are available in this format.
- 132-character record length- standard variables and units- self-contained lines ( i . e . , all information for a given datum on thesame line)- restricted set of experimental information

3.

Table Computation Format (see Chapter U for detailed
specifications).
Cross sections and angular distributions are available in this format.
- 80-character record length- standard variables and units- data tables of X vs. Y with associated information given in header
records.
- restricted set of experimental information

List Formats
Retrievals may be printed in any of the data formats outlined previously or
may be produced in an expanded l i s t format (as detailed in Chapter 5 ) .
Plot Foraats:(see Chapter 6 for detailed

specifications)

1.

Individual plots by data set, i . e . , data for each reference
reaction will appear on a separate plot or set of plots.

and

2.

Grouped plots by reaction, i . e . , a l l data for a given reaction
appear on the same plot or group of plots, labeled by reference.

will

3.

More than one reaction on the same plot or group of plots.

-,_3

CHAFTEF, 2
BIBLIOGRAPHIC REFERENCES

Neutron Data (CINDA)
CINDA, t h e Computer Index to Neutron Data, c o n t a i n s r e f e r e n c e s t o d a t a forneutron reactions. Also included are other categories, of data of interest
to reactor physicists: some photon-induced reactions (neutron emission andfission) and spontaneous fission. Integral measurements are not included.
Retrieval output is sorted by target nuclide, quantity and date of the main•reference. All references to the same data set will be blocked together inorder of date.
Separate listings are given for each target
reference line is as follows:

nuclide.

The

contentofaQuantity
Energy range (eV)Laboratory
Work type
Reference type
Reference
Comment
See the CINDA publicationabbreviations.

for explanationsof quantities, codes andJanuary 1982

- 93 -CSISRS U s e r ' s Manual

Page 2-2

Example of a_ CINDA r e t r i e v a l

AL HUCLEAR DATA CEHTi?:' I f f i * RETRIEVAL t*

Eleaeni
Quantityi*

Block Hubber
F-jbi:c3t:^ Dste
P-jfclicstion Tb.-e
Uorh TSPSMUCLIDE

Tctsl
Tots]

1 i+5 ;:.^+.'
;.2+7
!
1
B-l
;.o+c
*
..v+i
,%jif
*
1.2+7
o+5 :!.2+7* *C-+d 3..4+7
1.o+s : .4+7
* •5+£ 'C 12

0P1 Exrt£:t?t

BNL Ejjpi
KFK Evsl

PEN Cos?SRC RevuLAS E»t
Espt

E..^t

.4+7

£«?*

0+6 1 .4+7£):fv

2+i 1 .4+7
V+'I 4 .S+c
0+6 2 .;+7

E::?tANi E;t?t
LRL Sevu^ 1

OHO r-Tf.

Jour
lists
Pros
Pros
Jour
Ccnf
Jour
Cant
Conf
Prcs
Prc£
lists

P

R 122 OJ4 ilv'
EXF0R11220
7£C'c
aftsH-1124 17 iSll
EAHDC'.EiHOl!
"10e
i7
760=
HP/A 26£
07 7704
77H3£
2? 7s01NS£ s?
77BHL
231 7705"iLC^ELL .239 "50"
E8BA-HK-? lvo ""04
LA-'JS-""-":2. 1 7704
EXF0R102S4 006 "?-5£
DJE-fffiC-i:
79KK2X
22? 7? 10

Pros
Conf
Jour PS/" IT «;• OOT
C2 DCE-HUC-24 142 £1-N

Cchrtr TRANS TD: - HS-I'-.I 1 : "Ev. 214 -T=. =I5«A.
£ s : l c r + I P ! RISC! ??"• A-'ALYSI: T*:
Ci«rJacks. EFF,RANGE THE2?W
Lschksr.CS CCKTRIBimSH TO «A"JF'iL
AuchMF-wtfh+TRie. TDF. SSFK •.CS TATA. .C?
.-.T r ;:•?!*;+AWhL LAI

January 1982

CSISRS User's Manual- 34 -

p a g e 2-3

Charged Particle Data (C?3ib)
CFBib contains references tc excitation functions and thick target yields
integrated over product angle and energy for reactions for incident
projectiles and targets with atomic mass greater than or equal to one(excluding neutrons).
The atomic masses of the outgoing particles andresidual nuclei must also be greater than or equal to one with the
exceptionof collective processes ( e . g . , total cross sections) andgamma-ray production reactions. The incident particle energy has a minimumof less than 100 MeV in the laboratory system.
Tnere are some exceptions to these c r i t e r i a .
1.

Ail data compiled in EXFOE are indexed.

2.

If there are data in an article satisfying the above criteria and there
are additional data satisfying all the criteria except minimum energy,
these additional data are cited.

3.

Charged-particle indices prepared by the K.N.D.C.
for conference
proceedings and other docunents are included as long as the criteria
for mass are satisfied.

*i.

Differential

Coverage ofreferences.

theneutron-source reaction data are included.
literature

began

in

1976,

but

may

includeearlier

The references are grouped and sorted by target nuclide and reaction.
content of a reference line is as follows:

The

Laboratory
Work Type
Reference Type
Reference
Energy Range (MeV)
Comment

See "The Bibliography of Integral Charged
explanations of codes and quantities.

Particle

NuclearData" forJanuary 1982

CSISRS User's Manual- 95 -

Page 2-4

Example o£ <a CPBIB Retrieval

HATISNAL ifJCLEAR DATA CEHTES
tit CHARGE PARTICLE RETRIEVALTARGET:
INCII'EHT!

S-C-13f

J5-10

JUL Exrt frc3 JUS.-197i 1?
7j 2.2T1
J'JL E » t ?rcs JUEL-S?EZ-72i2 «sr 3C- -i.'^lC-lI'>f8lphs)B-I5
relstivs sisseJE)
JCL Thea P-02 A-JCL-13 104 Bee 7?

-H)

Sohwerr CUR'.1. AC- r-RC'JP. IHTA2.
fenil
CURV. IXTA:-':C-?VSE'J;. :-f-1 HozcKi* CHAST ^ PR.

v-::,

January 1982

CHAPTER 5
EXFOR FORMAT

Introduction
EXFOR i s the exchange format designed to f a c i l i t a t e transmission of nuclear
data between the data compilation centers. It was originally conceived forthe exchange of neutron data through discussions held between programming
personnel from a number of laboratories ( i . e . , Saclay, Vienna, Livermore
and Brookhaven) and accepted as a result of a meeting of representatives
from the neutron data centers at Saclay, Vienna, Brookhaven and Obninsk,
which was held in fioscow in November 1969.
Subsequently, the format was further developed and finally adapted to cover
all types of nuclear reaction data. This came about as the r e s u l t of two
meetings held in Vienna in 1975 and 1976 on Charged Particle Nuclear Data
Compilation, attended by representatives from an increased number of data
centers.
The EXFOR format has been designed for f l e x i b i l i t y rather than optimizationof data processing.
The format as outlined allows a large variety ofnumerical data tables with explanatory and bibliographic information to betransmitted in an easily-machine-readable format which is easily read byusers.
This chapter outlines the general format specifications. For more detailsee the EXFOn Systems Manual, LEXFOR and the EXFOR Dictionaries. See
Appendix II for an example of a retrieval in the EXFOR Format.

January 1982

- 97 -CSISRS Users Manual

Page 3-2

EXFOR-file format
An EXFOR f i l e may contain a number of data sets (entries). Each set may be
divided into a number of sub-sets (subentries).
The sub-sets may befurther subdivided into bibliographic or descriptive information (hereafter
called BIB information), common data that applies to all lines of a datatable in a sub-set, and a data table.
The file may, therefore, be
considered to be of the following form;
Entry

File

Subentry

1

V

BIB
Information
1

CommonData
Data

A number of system identifiers are used to define the beginning and end
each of the above units (see page 3-4).

of

In order to avoid repetition of information that is common to all sub-sets,
information may be associated with an entire set. In order to accomplisht h i s , the first sub-set of each set contains information that applies toall other sub-sets.
The common sub-set is subdivided into common EIB
information and common data information; i t does not contain a data table.
! Common! Sub-set
Set(Entry)EIB!
Information]
Common Sub-set(First subentry)1Sub-setCommonData

1!

Sub-set

!
i
I
1
1
1

A subentry is defined as a table of data as a function of one or more
independent variables, i.e., X, X1 vs. Y with associated errors for X, X1
and Y (e.g., X = energy; X' = angle; Y s differential cross section) andany associated variables (e.g., standard).

January 1982

- 98 Page 3-3

CSISRS Users Manual

When more than one representation of Y i s present, the table may be X vs. Y
and Y1 , with associated errors for X, Y and Y1 and a possible flag ( e . g . ,X= energy; Y = absolute cross section, YT = relative cross section).
Thec r i t e r i a for grouping a Y with a Y1 is that they both be derived from thesame experimental information by the author of the data (see page 3-14,
Multiple Reaction Formalism).
For some data, the data table does not have an independent variable X but
only the function Y. (Examples: spontaneous nu-bar; resonance energies
without resonance parameters; etc.)
Record Identification
Columns 67-79 of each record uniquely identify the record in the EXFOR
system. The record identification consists of four fields as follows:
67!68
Universal
Accession
Number

71172

74175

79

next

3 fields(columns

lOriginating Center{Identificationii!Center-Assigned !
iAccession Number !
Center-Assigned
Sub-accession Number
Sequential Numbering

The f i r s t field (column 67) is alphanumeric, the68-79) are s t r i c t l y numeric.

Accession numbers and sub-accession numbers are not changed, once they are
entered in the system. If a subentry i s deleted from the system, the same
identification is not assigned to another data set.
Records are in ascending order by record identification, i . e . , column 67
79. Column 80 will be blank on all r e t r i e v a l s .

-Permitted character set
The following character set ispermitted for use in the EXFOR format:- All Roman capitals, A to
- All numbers, 0 to 9.
- The special characters:+ (plus)) (right parenthesis)/ (slash), (comma)(minus).
(left parenthesis)(equal sign)(decimal point)(asterisk),(apostrophe)
January 7982

- 99

CS1SRS Users Manual
SystemPage

Identifiers

Each of the b a s i c S y s t e m - I d e n t i f i e r Keywords r e f e r s to one of the h i e r a r c h yof u n i t s contained in an EXFOR f i l e . The S y s t e m - I d e n t i f i e r Keywords andcorresponding u n i t s a r e :REQUEST ENTRY
SUBENT BIB
COMMON DATA-A r e q u e s t i s the u n i t
An e n t r y (accession number) i s the u n i t
A subentry (sub-accession number) i s the u n i t
The BIB s e c t i o n of an e n t r y or subentry i s the u n i t
The common data s e c t i o n of an e n t r y or subentry i s the u n i t
The d a t a t a b l e s e c t i o n of a subentry i s the u n i t

These b a s i c S y s t e m - I d e n t i f i e r Keywords are combined with theand END t o i n d i c a t e t h r e e c o n d i t i o n s :modifiers

NO

1.

The beginning of a u n i t ( b a s i c System I d e n t i f i e r only)2.

The end of a u n i t (modifier END preceding the b a s i c System I d e n t i f i e r )3.

A p o s i t i v e i n d i c a t i o n t h a t a u n i t i s i n t e n t i o n a l l y omitted (modifier JNO
preceding the b a s i c System I d e n t i f i e r )However, only t h o s e combinations of b a s i c S y s t e m - I d e n t i f i e r
modifiers which are defined on the following pages are used.

Keywords

and

The general format of a s y s t e m . i d e n t i f i e r record i s :1[System I d e n t i f i e r ]

11!
!

22!
Nil

33!
N2i

44!
N3!

66!
Free t e x t j

Columns 34-66 (with the exception of the s p e c i a l use for columns
the REQUEST records) may contain free t e x t information.

34-44

of

The following pages d e s c r i b e a l lpermitted S y s t e m - I d e n t i f i e rr e c o r d s indetail.
Where the content of the numeric f i e l d s i s not given for any
System I d e n t i f i e r , the f i e l d i s not p r e s e n t l y in u s e .
REQUEST.

The f i r s t record on a r e q u e s t

file.

N1 - Request number
N2 - Date f i l e was generated ( y e a r , month, day;N3 - Request t y p e : s 1, EXFOR Format
Record i d e n t i f i c a t i o n :ENDREQUEST.

format - YYMMDD).

M ' in column 67 and zeros in columns 68-79.

The l a s t record on request

file.

N1 - The number of e n t r i e s (accession numbers) on the
Record i d e n t i f i c a t i o n :file.

' 2 ' in column 67 and 9 ' s in columns 68-79.

January 1982

- 100 CSISRS Users Manual
ENTRY.

Page 3-5

The f i r s t record of each entry.
N1 - Five-digit universal accession number
N2 - Date of entry (or date of l a s t change) (year, month, day).

Record identification:
universal
number zero, sequence number ' 1 ' .
ENDENTRY.

accession

number,sub-accession

The l a s t record of each entry.

N1 - The number of subentries (sub-accession numbers) in the entry
Record identification:
universal accession
number ' 9 9 9 ' , sequence number '99999'
SUBENT.

number,sub-accession

The f i r s t record of each subentry.
N1 - 8-digit universal sub-accession number
N2 - Date of entry (or date of l a s t alter) (year, month, day).

Record identification:
sequence number T 1 ' .

universal accession and sub-accession

numbers,

ENDSUBEHT. The l a s t record of each subentry.
N1 - Number of records within the subentry.
Record identification: universal accession and sub-accession
sequence number '99999'.

numbers,

BIB.* The f i r s t record of each EIB section if one i s present.
N1 - Number of keywords in the BIB section
N2 - Number of records in the EIB section
ENDBIB.* The l a s t record of each BIB section if one is present.
N1 - Number of records in BIB section
NCBIB.* Positive indication that there is no BIB section
subentry.
,

associatedwith

COMMON.* The f i r s t record of each common data section if one is present.
N1 - Number of common data e n t r i e s .
M2 - Number of records in common data section.
ENDCCMMON.* The l a s t record of each common data section if one i spresent.

N1 - Number of records in the common data section.
* See note on following page.
January 1982

- 101 CSISRS Users Manual

Page 3-6

N0COMM0N.* Positive indication that there is no common data associated withthe subentry.
DATA.* The first record of each data table section if one is present.
N1 - Number of fields (variables) associated with each line of adata table.
N2 - Number of data lines in the table (excluding headings andunits). If N1>6, a line will consist of more than one record.
ENDDATA.* The last record of each data table section if one is present.
N1 - Number of records in the data section
NODATA.* Positive indication that there is no data
the subentry.

table

associatedwith* Record identification for these System Identifiers: universal accession
and subaccession numbers, sequence number assigned sequentially within
the subentry.

The EXFOR file then has the following form:

SUBENTBIB!

or INOBIBENDEIB
COMMON!
')!

or ! NOCOMMON!

ENDCOMMON! )
DATA
!
1
1
1
1
1
I

or ! NODATA!

ENDDATA !
ENDSUBENT!

Note: DATA, ENDDATA, and NODATA must not appear in the firstsub-accession nunber.

(allcommon)January 1982

- 102 CSISRS Users Manual

Page 3-7

BIB SECTION
This section of an EXFOR entry i s identified as that information between
the system i d e n t i f i e r s BIB and ENDBIB. (See page 3-5 for an explanation of
the numerical fields on the BIB and ENDBIB records.) In addition to
bibliographic information, t h i s section also includes information required
to describe an experiment ( e . g . method, f a c i l i t y , e t c . ) and administrative
information ( e . g . h i s t o r y ) .
A BIB record consists of up to four p a r t s :keyword,information (codes), free text and i d e n t i f i c a t i o n .
1.

machineretrievable

Information-Identifier Keyword
The Information-Identifier Keyword defines the significance of theinformation given in columns 12-66. It i s l e f t adjusted to begin incolumn 1, and does not exceed a length of 10 characters; column 11 i s
blank or contains a pointer. (See EXFOR Dictionary 2 for a l i s t of a l l
keywords.)
Within any one BIB section an Information-Identifier
Keyword i s notrepeated.
For a given keyword, columns 1-10 of continuation records
are blank and column 11 i s blank or contains a pointer. The pointer i s
given in the f i r s t record of the information to which i t refers and i s
not repeated on continuation records. The pointer refers to a l l BIB
information
until
either another pointer or a new keyword i sencountered. Pointer-independent information for each keyword appears
first.
(See page 3-14 for use of pointers.)
The keywords, in general, may appear in any order within a BIB section.

2.

Machine Retrievable Information
Machine retrievable information is used either to code the actual BIB
information, as a link to the COMMON and DATA section, or to code
numerical data. The machine retrievable information is enclosed inparentheses and left adjusted so that the opening parenthesis appears
in column 12. More than one piece of machine retrievable information
may be associated with a keyword. (See 3-16 for formats and coding
rules and the EXFOR Dictionaries for codes.
Machine retrievable information may be continued onto successive
records. Information on continuation records begins in column 12.
Note that some keywords have no machine retrievable information
associated with them and that, for many keywords that may have machine
retrievable information associated with them, it is not always present.

January 1982

- 103 CSISRS Users Manual
3.

Page 3-8

Information-Identifier

Keywords and Codes

Codes for use with a specific keyword are used singly or in conjunction
with one or more other codes. Two p o s s i b i l i t i e s exist if more than one
code i s used:a.) two or more codes are given within the same parenthesis,by a comma, for example:
KEYWORD(C0DE1.C0DE2) • free textb.) each code is enclosed in i t s own set ofentry starting in column 12, for example:
KEWORD

separatedparenthesis,

each

code

(CODED + free text
(C0DE2) + free text

Both of these p o s s i b i l i t i e s , or a combination of the two, may occur, ingeneral.
However, for some keywords, the coded string (between theparenthesis) may include retrievable information in addition to thecode.

Free Text
Under each of the keywords in the BIB section free text may be enteredin columns 12 - 66, either starting in column 12 or following theclosing of the machine retrievable information. The free text may becontinued onto any number of records.

January 1982

- 104 CSISRS Users Manual

Page 3-9

An example of several BIB information e n t r i e s i s given below:
1

ENTRY
SUBENTBIB
AUTHOR
INSTITUTE
N-SOURCECOMMENTEMDBIBNOCOMMONENDSUBENTSUBENT
BIB
REACTIONANALYSIS

66

12

00001
00001001(J.W.DOW,M.P.JONES) THIS SPACE MAY CONTAIN ANY FREE
TEXT. THE BEGINNING OF A NEW BIB ENTRY I S INDICATEDBY A NON-BUNK IN THE KEYWORD FIELD COLUMNS 1 - 1 0 .
(3AAABBB) SINCE THE KEYWORD FIELD I S NON-BLANK, THISI S CONSIDERED A NEW BIB ENTRY.
(ABC.WXYZ) THIS I S AN EXAMPLE OF A BIB ENTRY WITH MORE
THAN ONE PIECE OF MACHINE-RETRIEVABLE INFORMATION IN
ONE SET OF PARENTHESES. THE ABSENCE OF A POINTER IN
COLUMN 11 SHOWS THAT THIS INFORMATION REFERS TO ALLDATA.
THIS I S AN EXAMPLE OF A BIB ENTRY WITHOUT MACHINERETRIEVABLE INFORMATION.
THE POINTER IN COLUMN 11 INDICATES THAT THIS RECORD,
AND THE FOLLOWING RECORDS UNTIL A NEW POINTER I S
ENCOUNTERED, REFER TO ALL DATA WITH THE SAME POINTER
IN ALL FOLLOWING SUBENTRIES.

00001002( 9 2 - U - 2 3 5 ( N , E L ) , , W I D ) THIS I S AN EXAMPLE OF MULTIPLE( 9 2 - U - 2 3 5 ( N , F ) , , W I D ) ISC-QUANTS WITH POINTERS(CDEFG).
THIS IS AN EXAMPLE OF A BIB ENTRY WITH MORE
THAN ONE PIECE OF MACHINE-RETRIEVABLE(HIJ).
INFORMATION EACH CODED IN ITS OWN SET OF
PARENTHESES. EACH PART OF THE BIB ENTRY I S
LINKED BY A POINTER IN COLUMN 11 TO OTHERINFORMATION IN THIS SUBENTRY AND IN SUBENTRY
1 WITH THE SAME POINTER.
THE POINT AFTER THE CLOSING PARENTHESISINDICATES THAT THE CONTENTS OF THE PARENTHESESI S NOT REPEATED IN FREE TEXT, AS WOULD BE
REQUIRED IF THE POINT WERE ABSENT.

ENDBIBNOCOMMON

DATA
EN
EV
• • ••ENDDATAENDSUBENTENDENTRYDATAMILLI-EV

1DATA-ERRMILLI-EV

1DATA
MILLI-EV

2

January 1982

- 105 CSISRS Users Manual.

Page 3-10

COMMON AND DATA SECTIONS - General
The format of the COMMON and DATA sections i s i d e n t i c a l ;however, thesignificance of the content i s d i f f e r e n t .
Each section i s a table of data
having a data heading and units associated with each f i e l d .
The COMMON
section contains a l l data that apply to each l i n e of the data t a b l e . The
data table contains rows of information;
each row contains
information
associated with a data point ( e . g . , angle, angular e r r o r , cross section,
cross section e r r o r ) .
Each record contains six information f i e l d s , each 11 columns wide; i f morethan six fields are used, the remaining information i s contained on thefollowing records. (See example on page 3-12). The number of f i e l d s
isunrestricted.
Records are not packed; r a t h e r , individual point information i s kept on
individual records ( i . e . , i f only four f i e l d s are associated with a pointvalue, the remaining two f i e l d s are l e f t blank, and, for the data pointt a b l e , the information for the next point begins on the following record.
Similarly, i f eight f i e l d s are used, the remaining four f i e l d s on thesecond record remain blank. These rules apply not only to the d a t a , butalso to the headings and units associated with each f i e l d .
(See example on
page 3-12).
The content of the COMMON and DATA sections are as follows:1.

Data headings: identify what the value given in each field represents,leftadjusted
to the beginning of each field (columns 1, 12, 23, 3^,
45, 56).
(See EXFOR Dictionary 24 for permissible Data-Heading
Keywords.)
A one-character pointer can be placed in the l a s t (eleventh) column ofany data-heading field
if the corresponding field i s to be linked tosome other part of the same subentry or subentry 001. (See page 3-14
for more information on pointers.)

2.

Data u n i t s : the units in which the values in each field
are given,left
adjusted to the beginning of each field (Columns 1, 12, 23, 34,
45, 56). (See EXFOR Dictionary 25 for permissible Data-Unit Keywords.)

3.

The numerical data which i s Fortran readable using an •£'format.

That means in d e t a i l :- A decimal point i s always required, even for i n t e g e r s .
- A decimal number without an exponent can have any position within
the 11-character f i e l d .
- No blank i s allowed following the sign of the exponent (+ or - ) .
- A plus sign can be omitted, except that of an exponent when i t
isnot preceded by an E.
- In an exponential notation, the exponent i s right-adjusted
withinthe 11-character f i e l d .
The mantissa can have any p o s i t i o n .

January 1982

- 106 CSISRS Users Manual

Page 3-11

R e p e t i t i o n o£ Data Headings
Within t h e t h r e e s e c t i o n s :COMMON s e c t i o n of subentry nnn, n o t = 0 0 1 ,DATA s e c t i o n of subentry nnn, n o t s 0 0 1 ,COMMON s e c t i o n of subentry 001 of same e n t r y ,no data heading (Data-Heading Keyword plus perhaps a p o i n t e r )except for t h e following c a s e s .

isrepeated

Any f i e l d s with i d e n t i c a l data headings a r e adjacent and appear within only
one of t h e t h r e e s e c t i o n s mentioned above.
1.

Two or or more unresolved energy l e v e l s (given
Q-values) a r e entered as f o l l o w s :
E-LVL
MEV
0.077

E-LVL
MEV
0.107

energiesor

EN-RES

isrepeated

in

the

of

case

_An_ angle given _i£ degrees and minutes i s entered in two s e p a r a t e
with t h e data heading ANG r e p e a t e d ;as follows:
ANG
ADEG ;
90.

3.

level

E-LVL
MEV
0.177

S i m i l a r l y , t h e d a t a heading
unresolved resonance e n e r g i e s .
2.

asfields

ANG
AMIN
47.

Half-life values in different units, such as SEC, D, YR, are entered asfollows:
HL
SEC

HL
D
15.

HL
YR

28.3
4.8
4.

5.

Two or_ more flags defined under the EIB keyword FLAG which apply to thesame line of the data t a b l e , are entered as follows:
FLAG
NC-DIM

FLAG
NO-DIM1.
2.

3.

Errors or_ resolutions given _iin different
entered as follow:
EN-RSL
KEV
20.

units over an energy range are

EN-RSLPER-CENT
10.

20.

January 1982

- 107 -Page 3-12

CSISRS Users Manual

COMMON SECTION
The COMMON section of an EXFOR entry is identified as that information
between the system identifiers COMMON and ENDCOMMON. (See page 3-5 forexplanation of numerical fields on COMMON and ENDCOMMON records).
In the common data table only one number is entered in a given field.
The data values are never given in the COMMON section.
An example of a common data table is shown below:
1
COMMONEN
ANG-ERR
MEV
ADEG
4.1
10.
ENDCOMMON

66

12

23

34

45

56

EN-ERR

EN-RSL

E-LVL

E-LVL

ANG

MEV

MEV

MEV

MEV

ADEG

0.1

0.05

• 3.124

3.175

90

DATA SECTION

The DATA section of an EXFOR entry is identified on the EXFOR file as that
information between the system identifiers DATA and ENDDATA. (See page 3-6
for explanation of numerical fields on DATA and ENDDATA records) .
In the DATA table all entries of a record are integrally associated with anindividual point.
Blanks are permitted in all fields, however, every line in a data tablemust give data information. Similarly, each independent variable mustoccur at least once in each line. Supplementary information such as
resolution or standard values are not given as a line in a data table if
there is no data information for that line.
An example of a point data table is shown below:
1
DATA
ANG
ADEG
10.4

22.9
39.1
59.1

ENDDATA

12

23

ANG-ERR
ADEG
0.8
1.2
0.9
0.7
'

DATA
MB/SR

243.
127.
83.2
14.8

?
I

34

i
i
i
i

DATA-ERR
MB/SR

45

56

66

4!

|
i

8.7
4.2

i
i

3.7

i

2.9

6

January 1982

- 108 CSISRS Users Manual

Page 3-13

Field Sequence in a_ DATA Table
The preceding example i l l u s t r a t e s the simplest type of table representing
the dependent variable DATA as a function of the independent variable AMG(one-dimensional t a b l e ) . The rules for multi-dimensional tables require a
distinction between the four data categories occuring in data t a b l e s ,namely- independent variables (EN, EN-MIN, EN-RES, E, ANG,...);- dependent variables (DATA, RATIO,...);- associated quantities (EN-ERR, ANG-RSL, DATA-ERR,...);- additional information (STAND, MISC, FUG, H L , . . . ) .
DATA tables are arranged as follows:- All fields with independent variables precede the fields withvariables.

dependent- Fields with additional information are preferably placed after the l a s tdependent-variable field but if they refer to a specific field they may
be placed next to i t .
Note: Some Data-Heading Keywords may bevariables or as additional information.

usedeither- Fields with associated quantities are placed right after
which they refer.'as

independent

the

field

to

Line sequence of a_ DATA Table
Independent variables are arranged so that the rate at which the values
change within each field increases from left to r i g h t . Values in a given
independent-variable field must increase or decrease monotonically untilthe value in the preceding independent-variable field changes or the end of
the table is reached.
Example:
DATA
EN
MEV
1.
1.
1.
2.
2.
2.

EN-ERR
MEV
.02
.02
.02
.02
.02
.02

3.
3.
3.

.03
.03
.03

ANGLE
ADEG

ANGLE-ERR
ADEG

35.

10.
10.
10.

60.
90.
30.
60.
90.
30.
60.
90.

DATA
MB/SR

5.
5.
5.
5.
5.
c

ENDDATA

January 1982

- 109 Page 3-14

CSISRS Users Manual

Pointers
Different pieces of EXFOR information may be linked together by pointers.
A pointer is a numeric or alphabetic character (1,2,...9,A,B,...Z) placedin the eleventh column of the Information-identifier Keyword field in the
BIB section (see page 3-7) and in the Data-heading Keyword fields in the
COMMON or DATA section (see page 3-10). Pointers may link, for example,- one of several reactions with its DATA field;- one of several reactions with a specific piece of information in the BIB
section (e.g., ANALYSIS), and/or with a value in the COMMON section
and/or with a field in the DATA section;- a value in the COMMON section with a field in the DATA section.
A pointer used in subentry '1' applies to all subentries and hasmeaning throughout the entire entry.

aun i que

Examples of the use of pointers follow.

1.

Multiple Reaction Formalism
In certain cases more than one code unit may be given under the
Data-Specification Keyword for a subentry, each unit having i t s own
data f i e l d ( s ) . Each data field i s then linked to the appropriate code
string by means of a pointer.
Example:BIB
REACTION

1(92-U-235(N,0),,EN)2(92-U-235(N,0),,J)3(92-U-235(N,TOT),,WID)
4(92-U-235(N,F),,WID)

ENDBIB
COMMONMOMENTUM I DATA-ERR
NO-DIM
PER-CENT
0.
8.
ENDCOMMON
DATA
1DATA
DATA
EV
NO-DIM

3DATA-ERR
PER-CENT
10.
2DATA
MILLI-EV

3D ATAMILLI-EV

4

ENDDATAIn the example above, the field headed 'MOMENTUM L1 in the COMMON
Section does not have a pointer and, therefore, relates to all fieldsof the DATA Section. The two fields headed 'DATA-ERR' in the COMMON
Section are linked, by means of pointers, to fields of the DATA Section
and to specific reaction units in the BIB Section.

January 1982

- 110 CSISRS Users Manual
2.

Page 3-15

BIB/BIB Links
P o i n t e r s may be used to l i n k p i e c e s o f BIB i n f o r m a t i o n ,r e f e r to the same REACTION.

but

must

all

to

link

to

Example:REACTION
PART-DET
DETECTOR

3.

(
)
KG)
2(N)
KABCDE)
2CFGHIJ)

BIB/DATA Links
P o i n t e r s used in t h e BIB s e c t i o n may a l s oinformation in the COMMON and DATA s e c t i o n s .
Examples: REACTION
PART-DET
or:

REACTIONCOMMENT

1(
2(
1(
2(

used

)
)
)
)

(
)
1 Free t e x t about f i r s t angle
2 Free t e x t about second angle

ENDBIB
COMMON
ANG
1ANG
ADEG
ADEG
10.
20.
ENDCOMMON
DATA
EN
DATA

4.

be

2

1DATA

2

Alternative results
Different results for the same quantity in the same experiment by,e.g., two different methods of analysis, may be entered in the same
subentry, using pointers. In this case, the code unit for the Data
Specification Keyword is repeated.
Example:REACTIONANALYSIS

U92-U-235(N,G),,WID)
2(92-U-235(N,G),,WID)
KAREA)
2(SHAPE)

January 1982

- Ill Page 3-16

CSISRS Users Manual
Dictionaries
Following i s a l i s t of the EXFOR Dictionaries , which
keywords and codes used.
Number
1.
2.

3.

n.

5.
6.

7.
8.
9.
10.
11.
12.
1314.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
27.
28.
29.
30.
31.
32.

33.
3«.
35.
36.
(-)
ext

Name
S y s t e m - I d e n t i f i e r Keywords

Information-Identifier Keywords
Institutes
Reference Type
Journals
Reports
Conference and Books
Elements
Chemical Compounds
Process/Parameter (Quantity SF1)
Function (Quantity SF2)
Modifier (Quantity SF3)
Particle (PART-DET and Quantity SFU)
Quantity (SF1 - 4)
History
Status
Rel-Ref (SF1)
Facility
N-Source
Additional Results
MethodDetectors
Analysis
Data-Heading Keywords
Data-Units Keywords
NuclidesIncident Particles (REACTION SF2)
Product Particles (REACTION SF3)
Process (REACTION SF3)
Branch (REACTION SF5)
Parameter (REACTION SF6)
Particles Considered (REACTION SF7)
Modifiers (REACTION SF8)
Data-Type (REACTION SF9)Quantities (REACTION SF5-8)

Codelength1010containof

theExpansion
providedyes

5 to 7yes ext

1
6
11
10
6

yes
yes

7 to 10ayes ext
yes
yes

3
3
3
3
18
1

5
1

5
5
5
5
5
5

yes

yes ext
yes
yes

yes
yes
yes
yes
yes
yes
yes

10
10
10

3
3
3
5(->
3
3
3
5
44

yes
yes

yes
yes

yes

ext

Normally limited to 3-character code.
Expansion may extend to follow-up records. In all other cases, theexpansion i s restricted to the length of the explanation field of one
record.

January 1982

- 112 CSISRS Users Manual

Page 3-17

Coding for nuclides and compounds
Nuclides appear in the coding of many keywords.
Z-S-A-X, where:

The general code format i s

Z i s the mass number; up to 3 d i g i t s , no leading zeros
S i s the element symbol; 1 or 2 charactersA i s the atomic weight; up to 3 d i g i t s , no leading zeroes, a s i n g l e zerodenotes n a t u r a l i s o t o p i c composition
X i s an isomer code denoting the isoraeric s t a t e This subfield
i s omitted
i f the nucleus does not have a known metastable s t a t e of i f the data are
given for the sum of a l l isomeric s t a t e s .
X may have the following v a l u e s :G for ground s t a t e (of a nucleus which has a metastable s t a t e ) M i f only
one metastable s t a t e i s regarded
M1 for the f i r s t metastable s t a t e
M2 for the second, e t c .
T for sum of a l l isomers (limited to use within an isomeric r a t i o in SF**
under REACTION)
Exceptions to t h i s coding are noted on the pages for each keyword.
Compounds may in some cases replace the nuclide code. Compounds are codedusing e i t h e r the s p e c i f i c compound code, taken from Dictionary 9, or thegeneral code for a compound of the form Z-S-CMP. ( e . g . , 26-FE-CMP).
Information-Identifier

Keywords

Following i s a l i s t of Information-Identifier
the coded information associated with them.

Keywords and the s t r u c t u r e of

ADD-RES
Gives information about any additional results which were obtained
experiment, but which are not compiled in the data tables.
Coded information, if given, will be in either of the generalpage 3-8, with code(s) from Dictionary 20.

in theforms, see

ANALYSIS
Gives information as to how the experimental results have been analysed toobtain the values given under 'DATA' which actually represent the resultsof the analysis.
Coded information, if given, will be in either of thepage 3-8, with code(s) from Dictionary 23.

generalforms,

see

January 1982

- 113 CSISRS Users Manual

Page 3-18

ASSUMED (REACTION formalism)
Gives i n f o r m a t i o n about v a l u e s assumed in t h e a n a l y s i s of t h e d a t a ,COMMON or DATA s e c t i o n f i e l d s headed by ASSUM and i t s d e r i v a t i v e s .
The format of t h e code i s :and(heading.reaction)

Heading f i e l d :c o n t a i n s t h e heading to be d e f i n e d .

Reaction f i e l d :3-26)

Coded t h e same as for t h e

keywordREACTION.

In t h e case of more than one assumed d a t a heading (ASSUM1,
each must be coded s e p a r a t e l y , s t a r t i n g in column 12.

(see

ASSUM2,pageetc.),AUTHOR

Gives the authors of the work reported.
Authors names are entered in the normal way a name is written, i.e.,
A.B.NAME, each name separated by a comma.
Hyphenated family names,
2-character initials (as in the transliterationof some
Cyrillic
characters), and any other deviations from the normal name structure are
permitted. For a family name modified by 'Junior', JR is entered following
the family name and separated from it by a blank.
All names are entered between one set of parenthesis. The authors names
may be continued on the next record, but names are not broken, i.e., thelast character on the line to be continued will be a comma.
Examples: AUTHORAUTHOR(A.B.JONES,L.POZA-LOBO,YA.M.IVANOV,NGO-DINH-LONG,
A.MORALES AMADO)(W.W.HAVENS JR)COMMENT
Gives pertinent information which cannot logically be entered under anotherof the keywords available.
No coded information.

CORRECTION
Gives information about corrections applied to the data in order to obtainthe values given under the data heading 'DATA1.
No coded information.

January 1982

- 114 CSISRS Users Manual

Page 3-19

DECAY-DATA
Gives t h e decay d a t a ( f o r any n u c l i d e o c c u r r i n g in t h eused by t h e author to o b t a i n t h e d a t a g i v e n .

reaction

Decay d a t a r e l e v a n t t o a monitor
DECAY-MOM (see following p a g e ) .

underreaction

are

coded

measured)thekeyword

The coding s t r i n g c o n s i s t s of f i v e f i e l d s which may be preceded by a f l a g :((flag)nuclide,half-life,radiation.energy,abundance)
The r a d i a t i o n f i e l d , followed by i t s energy and abundance, may be repeated.
If a code s t r i n g i s broken for continuation onto the next record, the breakcomes at the end of a field or subfield, i . e . , the comma separating thef i e l d s i s the l a s t character on the l i n e (see example c ) .
If a field i s omitted, the following comma i s included;
are omitted (see examples a and b ) .
If the flagparenthesis i s omitted.

t r a i l i n g commas
i s omitted, i t s

If decay data i s given for more than one nuclide, then each wills e p a r a t e l y , s t a r t i n g in column 12.

be

coded

Flag. Contains an integer ( n . ) which i s linked to the same value appearing
in the data section under the data heading DECAY-FLAG (see example c) .
Nuclide f i e l d :The general format of the code i s Z-S-A-X (see page 3-17).

Half-life field:
Contains the h a l f - l i f e of the nuclide specified, coded asa number, readable in an E format, followed by a unit of time (seeDictionary 25).
Type-of-radiation: A code from Dictionary 13
Where two or more decay modes are possible and are not distinguished in themeasurement, two or more codes may be given, each separated by a s l a s h .
(See example b ) .
Energy: Energy of the radiation in keV, coded as a f l o a t i n g - p o i n t number.
In the case of two or more unresolved decays, two or more energies or alower and upper energy l i m i t may be given, each separated by a s l a s h .
Abundance.: Abundance of the observed r a d i a t i o n
floating-point number.

perdecay,

coded

as

a

Examples:a. DECAY-DATA
b. DECAY-DATA(UO-ZR-89-M)(60-ND-140,3.3D)-(59-PR-140,, B+/EC,, 0.500)
c. DECAY-DATA ((1.)60-ND-138,5.04HR,DG,328.,0.065)
d. DECAY-DATA (60-ND-139-G.30.0MIN.B+,,0.257,
DG,405.,0.055)
January 1982

-

115 -

CSISRS Users Manual

Page 3-20

DECAY-MON (REACTION formalism)
Gives the decay data assumed by the author for any nuclide occurring in themonitor reaction used.
The coding rules for DECAY-MON are the same as those for DECAY-DATA, exceptthat the flag field i s omitted.
DETECTOR
Gives information about t h e d e t e c t o r ( s )used i n t h e e x p e r i m e n t s .

Coded i n f o r m a t i o n , i f g i v e n , w i l l be in e i t h e r of t h epage 3 - 8 , with code(s) from D i c t i o n a r y 22.

generalforms,

see

EN-SEC
Gives information about secondary e n e r g i e s , and/or d e f i n e sfields given in the data t a b l e .
The format of the coded information i s :Heading Field;

secondary-energy(heading, particle)

Contains the Data-Heading Keyword to be defined.

Particle Field: Contains the particle or nuclide to which the Data-Heading
Keyword refers. The code i s either a particle code from Dictionary 13. ora nuclide coded in the standard format as described on page 3-17.
In the case where more than one secondary-energy Data-Heading
defined, each is coded separately, starting in column 12.
Example:EN-SEC

Keywordis(E1,G)(E2.N)(E-EXC.3-LI-7)

ERR-ANALYS

Explains the sources of errors and the values given in the COMMON
sections under data headings having the modifier -ERR.
The coded information is of the form:

or DATA(Heading) free text

If only one heading is defined, the coded information may be omitted.
If two or more error fields are given, the data headings are repeated ascodes for this keyword, each starting in column 12, followed by free text.
Example: ERR-ANALYS(EN-ERR) followed by explanation of energy error(DATA-ERR1) followed by explanation of first, error(DATA-ERR2) followed by explanation of second error
January 1982

- 116 CSISRS Users Manual

Page 3-21

EXP-YEAR
Defines the year in which the experiment was performed i f i tdifferss i g n i f i c a n t l y from the date of the references given. (Example: Classified
data that was published many years after the experiment).
The format of the code i s (yy) where yy i s thee.g., (65).

twodigits

of

the

year,

FACILITY

Defines the main apparatus used in the experiment.
Coded information, if given, is in either of the general forms, see page
3-8, with code(s) from Dictionary 18, or the facility code from Dictionary
18 may be followed by an institute code from Dictionary 3, which specifies
the location of the facility.
Example:FACILITY(CHOPF,1USAC0L)

FLAG
Supplies comments for specific lines in a data table.
The code is a fixed point number (n.) which is linked to the same value
appearing in the DATA section under the data heading FLAG. The code isfollowed by a free text comment.
If two or more codes are given, each begins on a separate line, starting incolumn 12, followed by a free text explanation of the meaning of the flag.
Example:BIB
FLAG(1.) Data averaged from 2 runs
(2.) Modified detector used at this energy

ENDBIB
DATA
EN
KEV
1.2

DATA
MB
123.

2.3

23«.

3.1
ENDDATAU56.

FLAG
NO-DIM
1.
2.

January 1982

- 117 CSISRS Users Manual

Page 3-22

HALF-LIFE
Gives information about h a l f - l i f egiven in the data t a b l e .
The general coding format i s :Heading f i e l d :Nuclide f i e l d :values and defines thehalf-life

fields(heading, nuolide)

Contains the Data-Heading Keyword to be defined.
General format of the code i s 2-S-A-X, see page 3-17.

If two or more h a l f - l i v e s are given, each i s coded s e p a r a t e l ycolumn 12.

starting

in

HISTORY

Documents the handling of the date set.
The general format of the code is (yymmddX):
where yymmdd is a date (year.month,day) on which some action was taken on
the entry or subentry;
X is a code from Dictionary 15 denoting what action was taken.
X may be omitted.
Each piece of coded information begins on a separate
column 12.

line, starting in

INC-SPECT
Gives information on theincident-projectile beam.

characteristics

andresolution

of

the

No coded information.
INSTITUTE

Defines the laboratory, institute or university at which the experiment was
performed, or with which the authors are affiliated.
The coded information is given in either of the general
3-8, with code(s) from Dictionary 3.

forms, see page

Trailing blanks are omitted, however, embedded blanks are included, as they
are considered part of the code.
Examples: INSTITUTEINSTITUTE(1USAGA, 1USALAS)(2FR SAC)

January 1982

- 118 CSISRS Users Manual

Page 3-23

METHOD
Describes the experimental

technique(s)employed in t h eexperiment.

If coded i n f o r m a t i o n i s given i t may be in e i t h e r of t h e g e n e r a lpage 3 - 8 , with c o d e ( s ) from D i c t i o n a r y 2 1 .

forms,see

MISC-COL
D e f i n e s f i e l d s in t h e COMMON or DATA s e c t i o n s headed by
MISC and i t s d e r i v a t i v e s .

the

data

If more than one m i s c e l l a n e o u s f i e l d
i s given, ther e p e a t e d as c o d e s , followed by f r e e t e x t e x p l a n a t i o n .

dataheadings

Example:heading
are(MISC1) Free t e x t(MISC2) free t e x t

MONITOR
Gives information about the monitor (standard reference data) used in theexperiment and defines the information coded in the COMMON and DATA
sections under the data heading MONIT, etc.
The coding rules for MONITOR are identical to those for REACTION, with thefollowing exception:
subfields 5 to 9 may be omitted when only thereaction is known. (In this case, no monitor information will be given in
the COMMON and DATA sections).
In the case of two or more monitors, each monitor is coded separately,
starting in column 12. The respective monitor values coded are linked tothe monitor codes:a.) by using pointers (see page 3-16 BIB/DATA links)b.) using the data headings MONIT1, M0NIT2, etc., where
the first code entered, M0NIT2 the second, etc.

MONIT1

refersto

Information about the reference from which the MONITOR information
taken may be entered under the keyword MONIT-REF, see next page.

wasJanuary 1982

- 119 CSISRS Users Manual

Page 3-24

MONIT-REr (REACTION formalism)
Gives information about the reference fromdata used in the experiment is taken.
The general format of the code is:

which

the

monitor(standard)(subaccession/* .author .reference)

If a field is omitted the following comma is included;
omitted.

trailing commas are

Subaccession-Number Field: EXFOR subaccession number of monitor data.
CnnnnOOl refers to the entire entry Cnnnn.
CnnnnOOO refers to a yet
unknown subentry within the entry Cnnnn.
Author Field: First author (coded as under AUTHOR), followed bymore than one author exists.

'+'

Reference Field:(See page 3-30).

REFERENCE.

Contains up to 6 subfields,

coded

as

under

when

In the case of more than one monitor reference, each will be coded
separately, started in column 12. Entries under MONIT-REF and MONITOR may
be linked:a.) using pointers (see page 3-15, BIB/BIE links)b.) by coding the monitor references in the same sequence as the monitors
coded (i.e., the first reference coded refers to the first monitor
coded, etc.)
Examples:MONIT-REF(B0017005,J.GOSHAL,J.PR,80,939,50)(,A.G.PAN0NTIN+,J,JIN,30,2017,68)

N-SOURCE
Gives information on the source of the incident particle beam used
experiment.
Coded information, if given, is in either of the general
3-8, with code(s) from Dictionary 19.

forms,

in

the

see

page

January 1982

- 120 CSISRS Users Manual

Page 3-25

PART-PET
Gives information about the particles detected directly, in the experiment.
(See
RAD-DET
coding of decay particles.) Particles detected in astandard/monitor reaction are not coded under this keyword.
The code is either a code from Dictionary 13 or, for particles heavier thanalpha particles, a code of the form Z-S-A-X, see page 3-17.
More than one code may be given in either of the general forms, see page
3-17.
Particles detected pertaining to different reaction units within areaction combination, are coded on separate lines in the same order as thecorresponding reaction units. (See page 3-29 for reaction combinations).

RAD-DET
Gives information about the r a d i a t i o n sobserved in the reaction measured.
The general format of the code i s :Flag F i e l d .
same value
DECAY-FUG.

and/orparticles

andnuclides((flag)nuclide,radiation)

The code i s a fixed-point number (n.) , which i s linked to theappearing in the data section under the data heading keyword

If t h i s field i s omitted, i t s parenthesis i s also omitted.
Nuclide f i e l d .

The general format of the code i s Z-S-A-X, see page 3-17.

Radiation field consists of one or more
separated by a comma.

Dictionary

33,

each

For two or more nuclides, the coded information for each nuclide
separately, each code s t a r t i n g in column 12.

is

given

Examples:

codes

from

a.) RAD-DET(96-CM-240,A)b.) RAD-DET(25-MN-52-M,DG,B+)c.) RAD-DET(48-CD-115-G.B-)(49-IN-115-M.DG)

d.) RAD-DET

K94-PU-237-M1.SF)
2(94_PU-237-M2,SF)e.) RAD-DET((1.)48-CD-115-G,B-)((2.)49-IN-115-M,DG)

January 1982

- 121 CSISRS Users Manual

Page 3-26

REACTION
Specifies the data which is presented in the DATA
headings DATA, RATIO and SUM (and their derivatives).

section

under

the

A reaction-unit consists of six major fields:(reaction.branch,parameter.particle considered.modifier.data type)If a field is omitted, the following comma is
are omitted.

Reaction field.:parentheses.

ConsistsofH

subfields,

trailing

separatedbycommascommasor

May be a nuclide or compound, coded as given on

page(SF1(SF2,SF3)SF4
SF1. Target nucleus;
3-17.

included;)

SF2. Incident particle: Contains either a particle code from Dictionary 28
or, for particles heavier than alpha, a code in the form 2-S-A (isomerfield omitted), see page 3-17.
SF3. Process:Contains one of the following:a.) a process code from Dictionary 30, e.g., TOT.
b.) a particle code from Dictionary 29
multiplicity factor, e.g., A or MA.

which

may

be

precededbyac.) for particles heavier than alpha, a code in the form Z-S-A-X, see 3-17
(atomic weight (A) may not have the value zero). The nuclide code isrepeated, if necessary, e.g., 8-0-16+8-0-16.
d.) combinations of a., b. and c , with the codes connected by ' + '.
Outgoing particles are ordered starting with the 'lightest' in Z, A
order, followed by process codes given in the same order as given in
Dictionary 30.
The exception to this order is, when SF5 contains the code 'SEQ1, theparticles and/or processes are ordered in the sequence in which thereaction proceeds.
Examples:HE3+8-O-16
A+XN+YP

If SF5 contains the branch code 'UND' (undefined), the particle codes given
in SF3 represent only the sum of emitted nucleons, implying that the
product nucleus coded in SF4 has been formed via different reaction
channels.
The code '(DEF)' in SF5 denotes that it is not evident from thepublication whether the reaction channel is undefined or defined.

January 1982

- 122 CSISRS Users Manual

Page 3-27

Where mass and element distributions of product nuclei have been measured
and the Z and/or A of the reaction product acts as an independent variable,
the sum of outgoing neutrons and protons may be entered as variables into
the data table. In this case SF3 of the REACTION keyword contains at least
one of the following codes:
XN - variable number of neutrons given in the data table.
YP - variable number of protons given in the data table.
The numerical values of the multiplicity factors X and Y are entered in thedata table under the data headings N-OUT and P-OUT, respectively.
SP*t. Reaction Product;
In general, the heaviest of the products (in Z,Aorder) is defined as the reaction product.
If SF5 contains the code 'SEQ', indicating that the sequence of several
outgoing particles and/or processes coded in SF3 is meaningful, the nuclide
to be coded in SF4 is the heaviest of the final products.
Coding:This subfield

either is blank if:
1.) SF3 contains the process code TOT, ABS or NON.
2.) the reaction specifies a resonance parameter
Dictionary 36 by a point in column 22).

(asdefinedin3.) in the case where no specific reaction product is considered.
This may occur if:- SF3 contains the process code F.
- SF3 contains a combination of the process code X with a particle
code, e.g., (P.G+X),SEQ.
- the reaction is measured on a target of natural composition.
- a nuclear quantity is given.
In the case where emission cross-sections, production cross sections,product yields, etc., maybe given for specified nuclides, particles
or gammas, the product considered is defined as the reaction product(even if this is not the heaviest of several reaction products). Thismay occur if SF3 contains the process codes F, X, XN or YP.

or contains a code in the form Z-S-A-X as described on page 3-18.
In the case of isomeric ratios and sums the isomer code may consist of
a combination of codes separated by a slash or a plus sign. The useof these separators will be algebraic, e.g., M1+M2/G. The code T is
used to denote the sum over all isomers.
Examples:(92-U-235(N,F)5U-XE-12U,CUM,FY)(39-Y-89(P,2N+P)39-Y-87-M/G,,SIG)
January 1982

- 123 CSISRS Users Manual

Page 3-28

or, when SF3 includes the codes F,X,XN or YP, and emission crosssections, and product yields, etc., are given, SF4 of the REACTION
keyword may contain one of the following codes:
ELEM- If the Z (Mass number) of the reaction product is given in
the DATA table.
MASS- If the A (atomic weight) of the reaction product is givenin the DATA table.
ELEM/MASS - If the Z and A of the reaction product are given in to
COMMON section or DATA table.
If the data headings ELEMENT and MASS are present, a third field with
the Data-Heading Keyword ISOMER is used when isomer states are
specified:
C. s ground-state (used only if nuclide also has an isomeric state)
1. = first metastable state
or: the metastable state when only one is considered
2. = second metastable state
etc.

Only certain combinations of codes in the next four fields are
These are listed in Dictionary 36.

meaningful.

If two or more codes are given, they are separated by a slash.

Branch: Code(s) from Dictionary 31.
Indicates a partial reaction if, for example, only one
levels or particle groups has been considered.

ofseveralParameter: Code(s) from Dictionary 32.
Contains information about the reaction parameter given, suchor differential cross-section.

asenergyintegralParticle considered: Code(s) from Dictionary 33.
Provides particle code(s) indicating to which of several outgoing particles
the quantity refers, if there is ambiguity.

Modifier: Code(s) from Dictionary 34.
Contains information on the representation
relative data, fitting coefficients, etc.

of

the

data,

for

exampleJanuary 1982

- 124 CSISRS Users Manual

Page 3-29

Data-type field; Code(s) from Dictionary 35.
Indicates whether the data are experimental, theoretical,
If the field is omitted, the data are experimental.

evaluated,

etc.

Reaction Combinations
For data sets referring to complex combinations of reactions and/or
materials, the code units for REACTION can be connected into a single
machine-retrievable field, with appropriate separators
andproperlybalanced parentheses.
Parentheses are used in the same manner as in
FORTRAN to define algebraic operations.
The permitted separators are:+(Plus) : Sum of 2 or more quantities.
-(Minus): Difference between 2 or more quantities"(Times): Product of 2 or more quantities/ (Over): Ratio of 2 or more quantities= (Also): Tautologies, (And) : Obsolete, but may be found in older NND entries.
Used for multiple representations of the same
Quantity, which are now coded using pointers.
The complete reaction combination will be enclosed in parenthesis.
The general form of these combinations is:

((

)+(

))

A code unit is not broken for continuation on the next line. The separator
will appear last on any line, with the first parenthesis of the next code
unit beginning in colunn 12 of the next line.
Examples:((92-U-235(N,F),,SIG)/(79-AU-197(N,G)79-AU-198,,SIG))(((28-NI-58(N,N+P)27-CO-57,,SIGM28-NI-58(N,D)27-C0-57,,SIG))/(13-AL-27(N,A)11-NA-24,,SIG))

Multiple Reaction Formalism
If pointers are used with this keyword, the code fields associated witheach pointer may be a reaction unit or a reaction combination, (see page3-14).

January 1982

- 125 CSISRS Users Manual

Page 3-30

REFERENCE
Used to give information on references which
work for which the data are coded.

containinformation

on

the

The general coding format consists of 3 main fields.
(reference type, reference, date)No embedded blanks are allowed

Reference Type:Contains a code from Dictionary 4.

Reference: Contains up to four subfields depending on reference type.
Ifa subfield is omitted, the separating comma is included, except in thecase:a.) of a parenthesised subfieldb.) when the omitted subfield is the page number
See type of reference, following pages, for specific coding rules for
subfield.

each

Date: Contains a code of the form YYMMDD (year,
digits) . . The month and day may be omitted.

twomonth,

day,each

In the case of more than one reference, each reference is coded separately,
starting in column 12. The main reference is given first.
In the case of a document which has more than one identification, each may
be coded within one set of parenthesis, each code being in parenthesis, andseparated from the other codes by an equal sign. The primary code is given
first.
e.g., ((R,USNDC-7,143,7306)=(R,EANDC(US)-181,143,7306))
The same rules apply for continuation records as those given
Combinations, page 3-29.

forReactionJanuary 1982

- 126 CS1SRS Users Manual

Page 3-31

Type of Reference =_ B_j_ £ or_ _Jj_ Books, Conferences and Journals
Contains up to 4 subfields:
number).
General coding form:
nunber).Date)code, volume, part or issue(B or C, Code,Volume,(Partor issue#, page(paper# ) , Page(paper

Code subfield contains a code from Dictionary 7 for books and conferences,
Dictionary 5 for journals.
Volume sub field may have any content, except commas or parentheses.
Part or issue # subfield, if present, is enclosed in parenthesis
have any content, except commas or parentheses.

and may

Page (paper number) subfield, if present, contains:- the page number which is numeric- and/or the paper number, enclosed in parenthesis,
which may have any content, except commas or parentheses.
Examples:(C,67KHARKOV,,(56),6702)(J.PR,104,1319,5612)(J,XY2,5,(2),89,6002)= 1967 Kharkov Conference Proceedings,
paper number 56, February 1967.
= Phys.Rev.,Volume 104,page 1319,Dec. 1956
= Journal XYZ,Volume 5,Issue # 2.
page 89,Feb. 1966

Type o£ Reference =_ P_j_ j? or_ Sj_ Reports
Contains up to 3 subfields, Code-number, Volume/part, Page.
General coding form:(Type,Code-number.(Volume/part).Page,Date)

Code-number subfield contains:a.) a code taken from Dictionary 6.
b.) the number, which may have any format, but will not contain acomma, for example: 3058-39, 4648-MS, 66-12-9, 63O-1X-A/PR
Volume or part subfield, i f present, i s enclosed
have any content, except commas or parentheses.

inparenthesis

andPage subfield, if present, i s numeric. If there are two works on athey may be distinguished as described under Books, et a l . , above.
Examples:(R,JINR-P-2713.6605)(R,BNL-325,(2ED,SUPPL.2,VOL.2A),6602)

may
page,

= Dubna report, series P, number
2713, published in May 1966.
= an extreme but well-known
example for the Vol. or Part
field.
January 1982

- 127 CSISRS Users Manual

Page 3-32

Type _of Reference ^ T\_ or_ W_j_ Thesis or_ Private Communication
Contains up to 2 subfields:
General coding forms:

author, page

(W or T,Author,Page,Date)

Author sub field contains the family name of the first author.
Page subfield, if present, will be numeric.

Examples:(W.BENZI,661104)(T,ANONYMOUS,586802)= p r i v a t e communication from Benzi
received in November H, 1966.
r Page 58 of t h e s i s by Anonymous,
published in February 1968.

REL-REF
Gives information on references related to, but not directly pertaining to,work coded.
The code contains four main fields:(code,subaccession*.author.reference)

If a field is omitted, the following comma is
are omitted.
Code field:

included;

trailing

commasContains a code from Dictionary 17.

Subaccesion// field:
Contains the EXFOR subaccession number for thereference given, if it exists. CnnnnOOl refers to the entire entry Cnnnn.
CnnnnOOO refers to a yet unassigned subentry within the entry Cnnnn.
Author field: Contains the first author, coded as underby + when more than one author exists.
Reference field: Contains up to 8 subfields coded
REFERENCE. (See page 3-30).

as

AUTHOR,

under

the

followed

keyword

Example:(C,B9999001,A.B.NAME+,J,XYZ,5,(2),90,7701)=Critical remarks by
A.B.Name, et al.,in Journal XYZ, Volume 5,
issue-number 2, page 90,
January 1977.

January 1982

- 128 CSISRS Users Manual

Page 3-33

SAMPLE

Gives information on structure, composition, shape,
measurement sample.

etc., of the

No coded information.

STATUS
The coded information may be entered in:a.) either of the general forms, see page 3-8;b.) as coded information with two f i e l d s :Code Field:

codes from Dictionary 16.
(code,subaccession #)Contains a code from Dictionary 16

Subaccesslon
Field: Contains a cross-reference to an EXFOR subaccession
number.
CnnnnOOl refers to the entire entry Cnnnn. CnnnnOOO refers to a
yet unassigned subentry within the entry Cnnnn.
This field is used only for the codes SPSDD, DEP, OUTDT, and RNORM.
If more than one status code with a cross-reference
coded separately, starting in column 12.
Examples:STATUS

isgiven,

theyare(DEP,123^5002)(DEP,12345003)

TITLE
Used to enter the t i t l e of the work referenced.
No coded information.

January 1982

- 129 CSISRS Users Manual

Page 3-3

Example of a retrieval in the EXFOR format:

January 1982

-

130 -

CHAPTER 4
COMPUTATION FORMAT

Introduction
The CSISRS computation formats are output formats for the data librarywhich contain specified data given in fixed fields and in standard units.
A t r i a l computation format was developed st N.N.D.C. in 1973. Cua to theexperience with that format ever the past years and the increased
flexibility of the data system, a review was made of our retrieval
capabilities.
The formats described in this report have been developed asa result of that survey.
Two types of computation formats are provided:1.

Self-contained-line format: All information necessary to define adatun is included on one line and each line i s , therefore, independent.
The format has been restricted to a 132-character line
processing and listing at most computer f a c i l i t i e s .

to

allow

for

This format has the obvious advantage to the user of simplifying
file
handling. Re-sorting of the file can be done easily with standard sortroutines and the file can be easily s p l i t into smaller f i l e s . The line
format is also very readable from a human standpoint.
2.

Data-table format: The data are presented in a two-dimensional
tableof 'x' versus 'y' with their associated errors and an iuentification
tag. Other associated information necessary to define each datum may
be presented as header records to the table.
The data-table format has the advantage that the record length isrestricted
to 30 characters for users who are card oriented, t'.ore
detailed information on a datum is presented through use of header
records;
therepetition
necessary on self-containedlines iseliminated .

I larch 1580

- 131 EXFOR Users Manual

Page 4-2

I n i t i a l l y , no attempt i s being made to convert a l l data to the computation
formats; formats have been developed to handle the needs of most users.
The i n i t i a l formats have been limited to:
1.
2.
3.

Data versus energy, including partial
secondary energy or raetastable state
Angular distributions including partial
secondary energy or metastable state
Resonance parameters

cross

sections

for

a

given

cross

sections

for

a

given

variables

to

which

with

the

Associated errors are given in the same units asthey apply.

theBlanks are used (instead of zeros) where no value i s given.
Evaluated data may be retrieved in the saiae formats
experimental data.

andmergedSupport programs are being developed to handle basic manipulations of thedata, e.g., retrieval of a data set, and are available to the user, alongwith necessary documentation (see Chapter 7 ) .

Cross-Section Formats
Standard variables and their units are as follows:
1.
2.
3.
U.

Incident energy in eV.
Secondary energy in eV.
Angle in degrees.
Data which is :either cross section in barns
or angular distribution in barns/steradianor fission parameter - no dimensions

Angular distributions are given in the laboratory system.
Secondary energies are given in a representation suitable forpresented, with a flag specifying which representation is used.

the

data

The retrieval output tape consists of three f i l e s : , an inaex, a Eib fileand a datz f i l e . The format of each is determined by the format specified.
The Eib file contains that information associated with a data set which ismost useful for machine processing of the data, i . e . , INSTITUTE, REFERENCE,
AUTHOR, REACTION, STANDARD, DECAY-DATA, HISTORY.
March 1930

- 132 ZXFCR Users Manual

Page 4-3

Line Format
1.

Index:

The format of the index f i l e i sColumns 1-3:
4-6:
7:
8-H:
12-14:
15-16:
17:
18:
21-31:
32-42:
43-49:
50-56:

2.

Atomic number (3-digit integer)
Atomic weight or compound code (3-digit integer)
Metastable state code
Incident projectile (particle code or, for A4,
chemical symbol + last 2 digits of atomic weight)
Reaction code
Reaction modifier
Dimension code
Secondary energy code
Lower energy limit
Upper energy limit
Starting record #if Records

BIB f i l e " The format of the Eib f i l e i sformat, (see page 4 - 5 ) .
Data f i l e .

1-18:
19-20:
21-23:
24-25:
26-30:
31-33:
34-132:

-he

same

as

for

the

Table

The data f i l e format i s as follows:

Same as for index, above
Standard code
Laboratory code ( l a s t 3 characters from CSISRS coae)
Date (2-digit year)
CSISRS accession number (or ENDF MAT)
CSISRS subaccession number (or blank for ENDF)
Data fields (as shown)

Asymmetric errors are allowed only for the cross section.

March 1980

- 133 EXFOR Users Manual

Page 4-4

Table Format
The date table format was designed to be similar to the EXFOR format sothat processing programs can be easily converted to handle r e t r i e v a l s ineither format. Since many users have expressed a preference for purely
numerical f i l e s , the format was set up with t h i s consideration in mind.
A table consists of a l l data for one quantity ( e . g . , Li(n,t) angular
distributions).
Each table i s further divided into s e t s , with each set
being defined by the common variables given in a heaaer- record.
All f i l e s are opened with a f i l e identification record containing:
Columnsi-i 1:
12-22:
23-33:
34-44:

F i l e identification
Request number
Retrieval dateRequest type: 2 = Computation

formatAll records are tagged with a record identification
Columns 67-71:
72-74:
75-79:

Table number
Set number
Reference number

Record identification
the f i l e s .
1.

as follows:

is assigned to allow easy re-sortingor

mergingofInd ex .
Index f i l e identification

record:!
9!
18!
! INDEX ,'Req. if
[Date

27!
36!
,'Req.Type i72! 75!
! 0!

60!
CJ

Index data record has the following format:
Columns

1- 9:
10-13:
19-45:
46-54:
55-63:
64-72:
73-75:
76-80:

Target nucleus
Incident p r o j e c t i l e
Outgoing p a r t i c l e s
ErsnchParameter
Modifier
Table type
Table number

March 1930

- 134 EXFOR Users Manual

2.

Page 4-5

Bib_ file.
Bib file identification record :
BFILE

IReg

$

IDate

IReq. type0!

Eib information i s given in sections resemblingheaded by a EIB record with the following format:

0!

EXFOR

Format,Bib information is given once for each reference number withintable. The set number is assigned ss zero.

a dataColumnstheQ!

1-11: 'BIB'
12-22:
23-33:CSISRS Accession/Subaccession number
Number of records in section

Data tables.
11

REQUEST
PHYSEHT
X1
X

22
71 I 74!
66
44
55!
79!
33
0!
0!
REQ. t0!
Req. type
Date
En-max
Table type E' type
Tab
.
it!
0
!
0!
En-minif points
-X2
error
Oi
•X1 error -XI error X2
Tab.//!
Set!
•X2 e r r o r+X error•t-Y e r r o r -Y error Tab./f! S e t ! Re f .
-X errortiiTab.fr 1 !999!99999!
999991999I99999!

ENDPHYSENTENDRECUEST

Each t a b l e i s headed byformat:Columnsa

recordRecord)withthefollowing

Record)withthefollowing

1-11: 'PHYSENT'
12-22: Table Type (see following)
23-33: Secondary Energy Type
34-44: if of points in Table
45-66: iinergy range (2EH.4)

Edch data s e t i s headea by s record
format :Columns(PHYSEHT(HEADER

1-33:

1st common v a r i a b l e and e r r o r s (as defined by t a b l e
type)33-66:

2nd common variable and errors (as defined by table
type)

March 193C

- 125 Page t-6

EXFOF Users Manual
Table types.
1.

Total integrated cross sections
HEADER record:(bl£.nk)

DATA record:! E
2.

!+E error!-E error| Datal-rDats err i-Data err I

I Pats{••Data err ! —Data err I

Partial integrated cross sections
HEADER record:! E'•E' error {-£' error |DATA record:! E!+E error

j-E error

Total differential cross sections
HEADER record :! E!+E error!-E error!

DATA record:
I Angle4.

j+Angle erri-Angle errj Pats

it-Data err!-Date err !

Partial differential cross sections
HEADER record:! E!+E error!-E error| E1!+E' error i-E' error !

DATA record:! Angle!+Angle erri-Angle err\ Datal-t-Dats err !-Data err \March 19S0

- 136 EXFGfi Users Manual

Page 4-7

Resonance Parameter Format
Resonance parameters are taken as a special case since the most useful formof presentation i s to have e l l data for a given resonance on a single l i n e .
Tnerefore, the computation format for resonance parameters i s a third end
specialized format.
The following format
parameter formalisms:

has

been

developed

forsingle-level

resonance

Standard variables and their units are as follows:
1.

Resonance energy in eV.

2.

Parity3.

Spin (J)M.

Angular momentum (1)5.

Total width in eV.

6.

2g * neutron width in eV.

7.

Radiation width in eV.

S.

Fission width in eV.

9.

Peak cross section in barns

Associated variables are given in the same units as the variables tothey apply.
Widths may be given in the laboratory system or
specified for r e t r i e v a l .

center-cf-rr.ess

whichsystemas

Blanks are used (instead of zeros) where no value i s given.
A companion l i s t i n g format has been developed which merges recommended andexperimental resonances parameters and groups by resonance (see Chapter 5 ) .

March i960

- 137 -EXFOR Users Kanual

Page 4-6

Format for Recommended Resonance Parameters

The resonance parameter format consists of 2 records of 132 columns each,Record 1

Contents
Isotope (ZZZAAAM)'RP1
Energy (+X.XXXX+1J)
Energy error (X.XX+U)'R'
Parity ( + )Spin (X.X)
Spin Flag
Momentum (X)Momentum flag
*5 Quantity Fields of 16 characters each:
Quantity (X.XXXX-KI)
Quantity error (X.XXX+M)
Quantity flag~"
113-115
116-1 10120-124125-132•SNL'
Date (YYMM)
MOOOO1
Parameter codes

Record 2:
1-7

6-9

10-25
26-32
33-96
97-112
113-124125-132

same as Record 1'R2'
same as Record 1blank
4 Quantity Fields (see record 1 for format)
blank
same as record 1
Book flags* Quantity fields are:

1. Total width (eV)
2. Radiation widtn (eV)
3. 2g X Neutron width (eV)
4. Miscellaneous (Fission width for Z_>88)
5. Miscellaneous
6. I;ot used
7. Not used
S. Not usea

"arch 19S0

- 138 -CHAPTER 5
LIST FORMAT(to be written)

CHAPTER 6
PLOTS(to be written)

CHAPTER 7
USER PROGRAMS(to be written)

- 139 -APPENDIX A
COOPERATING NUCLEAR REACTION DATA CENTERS

A list of the cooperating Nuclear Reaction Data Centers and their areas
responsibility follows.

CenterAreas Serviced

Data Types

1.

National Nuclear Data Center
Brookhaven National Laboratory
Upton, NY, USA

USA and Canada

CPD,NND

2.

N.E.A. Data Bank
Gif-sur-Yvette
FRANCE

non-Americsn
OECD member
countries

NND

3.

I.A.E.A.
Nuclear Data Section
Vienna, AUSTRIA

IAEA member states NND
not included in theservice areas ofCenters 1, 2 or 4

4.

Center for Nuclear Data
Obninsk, U.S.S.R.

U.S.S.R.

NND

5.

Center for Nuclear S t r u c t u r e
and Reaction Data
I.V. Kurchatov I n s t i t u t e
Moscow, U.S.S.R.

U.S.S.R.

CPD

5.

Cnarged P a r t i c l e Nuclear
Data GroupXar 1 sr uhe , Fed . Re p .
of Germany

CPD

of

-

140 -

Appendix 15

NATIONAL NUCLEAR DATA CENTER
3rookhaven National Laboratory
Upton. New York 11973

PRODUCTS and SERVICES

March 1982
I.

Background

The National
Nuclear
Data
Center(NNDC) offers
servicest o users
i n t h e UnitedStates. Canada
a n d . i n somecases, othercountries, coveringt h ee n t i r efield o f
lowenergynuclearphysics
I n particular,t h ec e n t e r
c a np r o v i d e
informationonneutron,chargedparticlea n dp h o t o n u c l e a r
reactions, nuclear
structure a n d
decay
data.
T h einformation
available t o users o f NNDC services i s t h e productoft h ec o m b i n e deffortso f t h eN N ' D C a n d c o o p e r a t i n g
datacentersa n d otheri n t e r e s t e d g r o u p s , b o t h i n t h eU n i t e d S t a t e s a n d w o r l d w i d e .
E x t e n s i v eb i b l i o g r a p h i c
files
f o rn e u t r o n
a n di n t e g r a l
r e a c t i o n ,n u c l e a r
s t r u c t u r e ,a n dr a d i o a c t i v ed e c a yd a t aavailable a tt h e center.
Files o f e x p e r i m e n t a l
are also available.

neutron,charged-particle

c h a r g e d - p a r t i c l e
p u b l i c a t i o n s a r e

a n d photonuciear

reactiondata

E v a l u a t e d
n u c l e a r
d a t ai s i m p o r t a n t
f o ra p p l i c a t i o n s
a n dt o f u n d a m e n t a lresearch.
T h ecenterh a so r g a n i z e da cooperative
national
effortt o produce
neutronreactiondataevaluations
withina n organization
k n o w n
a s t h e Cross
SectionEvaluation
WorkingGroup(CSEWG).
T h eresulting
evaluated
data
file.
E N D F B h a sb e e n
m a d eavailablet o users
since
1967
Evaluated
data
files
originating
i n othercountriesa r ea l s o a v a i l a b l e
from
NNDC.
T h eNNDC
also
coordinatest h eU . S . n u c l e a r
structureevaluation
efforta n da c t s a s a l i a i s o n
betweent h ei n t e r n a t i o n a l
nuclearstructureevaluation
centers.
Recently, t h e
NNDC
a s s u m e dr e s p o n s i b i l i t y
f o r t h ed i s t r i b u t i o n
o f i n f o r m a t i o n o n
n u c l e a r - s t r u c t u r e
a n d r a d i o a c t i v e - d e c a ydata.
E v a l u a t e d
c h a r g e dparticler e a c t i o n d a t a a r ea l s o a v a i l a b l e f o r d i s t r i b u t i o n .
The centera l s o h a ss e l e c t e d
preprocessed
neutrona n dp h o t o ndata; n t h e formof m u l t i g r o u plibraries
which
c a nb e u s e d
t o meett h en e e d s
o f m a n yusers.
The
centerm a i n t a i n s
i t so w n c o m p u t e r
i n ordert o betterserve
i t s users
Specific
requestsa r es a t i s f i e dwithd o c u m e n t s
o r c o m p u t e r
retrieval
output i ntheform
o f l i s t i n g s , p l o t s a n do r t a p e s
Magnetictapes
c a no e f o r m a t t e a t osatisfyt h en e e d s o f m o s t
users
More generaln e e d s a r eo f t e nsatisfiedb y o n eo f t h ec e n t e r ' s m a n ypubiicaucns.

-

II

141

-

Bibliography

A. N e u t r o n D a t a (CINDA) - b i b l i o g r a p h i c r e f e r e n c e s t o m e a s u r e m e n t s ,c a l c u l a t i o n s , r e v i e w s a n d e v a l u a t i o n s of m i c r o s c o p i c n e u t r o n d a t a .
Both p u b l i s h e d a n d u n p u b l i s h e dliterature are scanned.
All t y p e s of n e u t r o n
r e a c t i o n d a t a as well as r e s o n a n c e p a r a m e t e r s , level d e n s i t i e s ,spontaneous
fission, p h o t o n e u t r o n and photofission
reactions are included.
References arecompiled
worldwide through an exchange agreementwith other n e u t r o n
datacenters.
B
ChargedP a r t i c l e D a t a (CPBIB) - b i b l i o g r a p h i creferences
for i n t e g r a l
cha rged - p a r t lcle n u c l e a r d a t a a n d i n t e g r a l a n d d i f f e r e n t i a lneutron-sourcer e a c t i o n d a t a for e n e r g i e s u p t o 100 MeV.
Referencesa r e compiled

a t NNDC. a n d a r e c o m p l e t eC
N u c l e a r S t r u c t u r e a n d R a d i o a c t i v e Decay
bibliographyof t h e l i t e r a t u r epertaining
reactions and radioactive decay data.

from

2976.

D a t a (NSR) reference-oriented
to n u c l e a r
structure,
nuclearMany p a p e r s o n n u c l e a r r e a c t i o n s a n d r a d i o a c t i v e d e c a y a n d s o m e p a p e r s o n a t o m i cphysics pertinent to nuclear s t r u c t u r e are included.
T h e f i l e is c o m p l e t e f o r
p u b l i s h e d d a t a f r o m 1969 o n .
T h e c o m p l e t e file w a s r e c e i v e d f r o m t h e N u c l e a r
D a t a P r o j e c t in 1980 a n d is c u r r e n t l y u p d a t e d a t NNDC.

III.

Experimental

Data

A. Neutron. C h a r g e d - P a r t i c l e and Photonuclear

Reaction Data (CSISRS)

The computerized e x p e r i m e n t a l data libraryplus associated descriptive information:

contains

thefollowing

types

of

data

-

e n e r g y - d e p e n d e n t total and p a r t i a l cross sections and fission-product yields
for incident n e u t r o n s and charged particles.
- thick t a r g e t and product yields for incident charged particles- o u t g o i n g - p a r t i c l e energy and angular d i s t r i b u t i o n s , resonance p a r a m e t e r s , andg a m m a - r a y production for n e u t r o n - i n d u c e d reactions.
- photonuclear data t r a n s l a t e d from the Berman library.
Worldwide c o v e r a g e is a c h i e v e d t h r o u g h e x c h a n g e a g r e e m e n t s with o t h e r
c e n t e r s for t h e c o l l e c t i o n and d i s s e m i n a t i o n of n e u t r o n , c h a r g e d - p a r t i c l ephotonuclear data in a m u t u a l l y agreed on exchange format (EXFOR).

B.

data
and

Nuclear S t r u c t u r e and Radioactive Decay Data

Spontaneous

fission

data

and

level

densityparameters

A file c o n t a i n i n g e x p e r i m e n t a l n u c l e a r s t r u c t u r e d a t a
the ENSDF format is m a i n t a i n e d (see Evaluated Data B).

may

be

compiled

found
or

in

CSISRS

receivedin- 142-

Evaluated DataA.

NeutronE N DF . B c o n t a i n s
thecompleteevaluations
forapproximately
100
differentelements
orisotopes.
In
addition
there
are
some
900
partialevaluationsoffission-productcross
sectionsanddosimetry
data.
Many
materials
containinformation about radioactive decay
E X D F / 3 is r e v i s e dperiodically
ENDF A c o n t a i n s d a t a s e t s f r o m o t h e r d a t a s y s t e m s a n dpartially
completeoruntested,
but
which
are.
scientificst-udiesThere
arecurrently
more
than
30
i n c l u d i n g t h e ENDL, KEDAK a n d UK l i b r a r i e s .

d a t a s e t s t h a t m a y be o n l ynevertheless,usefulforevaluations e t s • i n E N D F A.

NNDC
isresponsibleforthecoordinationof
CSEWG.
involvingacooperative
agreementof m a n y
1-aboratones
within
the
L'.S.
and
Canadatoproducespecific
referencedata
sets which
are complete
in t h e i n f o r m a t i o nneededforapplication
studies.
Worldwide coverage
is a c h i e v e d
c e n t e r s a n d w i t h l a b o r a t o r i e s inB.

Nuclear

Structurethrought h e U.S.

cooperative
arrangements
and Canada.

with

NNDC i s r e s p o n s i b l eforcoordinating
theU.S.
effortworldwide
effortto e v a l u a t e
nuclearstructuredata
The
resultsareeditedby
NNDC
andpublished
Radioactive

As

noted

ENSDF

Decay

above

contains

Charged

both

ENDF

approximately

Particle

A starter
library
nuclear systematic^
A libraryofreceived from

1900
decay

isotopes,
schemesandfcr
cooperating
inainvolvingseveralcenters.
in
Nuclear
Data
Sheets.

Data
and

ENSDF

containinformation

1900

decay

schemesforThe
present
versionof
ENDF
containsforapproximately
800
fissionproduct
information.
ENDF a l s o c o n t a i n s
decav

D.

data

Data

ENSDF
contains
nuclearstructure
informationonapproximately
coveringA £ 263.
Included
are adopted
level
properties, complete
and reaction data.

C.

other

NuclearA sonradioactive

decay

262

Q-value.
half-life,
andaveragenuclei:ofthese.
180 a l s o
have
data
for
tritium
and
about
60

energies
spectralactinides

Dataofproton,deuteronandalpha
in p s e u d o - E N D F f o r m a t is a v a i l a b l e

inducedreactionsf r o m t h e NNDC.

fusionrelatedc h a r g e d - p a r t lcle
reactiondata(s
Los A l a m o s ( H a l e ; a n d is a v a i l a b l e in a n E N D F - l i k e

20 Mevj
format.

based

on

has

beer,

v.

Preprocessed Data

The following
1.
64

1A3 -

preprocessed

The SAND-II
materials.

library

data is available f r o m NNDC:
for

Dosimetry

applications

in

620

groupsandincluding2.
For e p i t h e r m a l r e a c t o r a p p l i c a t i o n s DLC-2 100 g r o u p l i b r a r y f r o m RSICORNL.
This l i b r a r y was generated f r o m ENDF/B-III cross s e c t i o n s and c o n t a i n smaterials.
This l i b r a r y is appropriate for codes s u c h as AN1SN and DOT.

at
69

3.
The 50 group LIB-IV cross s e c t i o n l i b r a r y f r o m LASL based upon ENDF/B-IV
c o n t a i n s 101 m a t e r i a l s .
This l i b r a r y is i s s u e d in t h e "CCCC" i n t e r f a c eformat,a n d is i n t e n d e d for u s e by t h e n u c l e a r c o m m u n i t y
for fast reactor
designcalculations.
L I B - I V f e a t u r e s c r o s s s e c t i o n s f o r u s e in t h e
self-shielding
f a c t o r m e t h o d , s o m e t i m e s c a l l e d the B o n d a r e n k o m e t h o d .
U t i l i t y p r o g r a m s areprovided w i t h the l i b r a r y .
4.
For t h e r m a lreactor a p p l i c a t i o n s a 460 t h e r m a l group l i b r a r y
u n i v e r s a l s u p e r g r o u p s y s t e m ) g e n e r a t e d by W e s t i n g h o u s e N u c l e a r Energy
fromt h e E N D F / B - I V f i l e s is a v a i l a b l e .
Cross s e c t i o n s a r e a v a i l a b l e
m a t e r i a l s i n c l u d e d in the general files.
5.
T h e r m a l s c a t t e r i n g m a t r i c e s g e n e r a t e d by S a v a n n a h
E N D F / B - I I I s p e c i a l f i l e s f o r 13 m a t e r i a l s c o n t a i n i n gavailable.
The k e r n e l s were g e n e r a t e dfor v a r i o u s
a v a i l a b l e in 30 and 50 group f o r m a t s .

(intheSystems
Tor allRiver Laboratories
fromS(a,0)
informationaretemperatures
and
are

6.
An i n t e r i m 84 g r o u p c r o s s s e c t i o n l i b r a r y for a c t i n i d e s in t h e
production
c h a i n f r o m i 4 a P u t h r o u g h " 3 E s was generated by S a v a n n a h River Laboratories andis appropriate for i n p u t to the HAMMER code.
The e p i t h e r m a l range c o n t a i n s 54
groups in the MUFT s t r u c t u r e , and the t h e r m a l range c o n t a i n s 30 groups t y p i c a lor the THERMOS code.
VI.

Services

Retrievalsfrom Computerized

Libraries

CSISRS -Retrievalsofspecificdatas e t s or r e t r i e v a lbyspecifici n p u t c r i t e r i a , such as. target Z a n d / o r A, Energy Range and Reaction.
O u t p u t is p r o v i d e d in t h e f o r m of t a p e s , l i s t i n g s or g r a p h i c a l
d i s p l a y s , w i t h a choice of several o u t p u t f o r m a t s available.
Data m a y
be retrieved in the original f o r m a t (EXFOR) or in a f o r m a t m o r e easilyu s a b l e f o r machine p r o c e s s i n g of the d a t a ( C o m p u t a t i o n F o r m a t ) .

ENDF/B -R e t r i e v a l s for s p e c i f i c
l i s t i n g s or p l o t s .

materials

areavailable

in

ENDF/A -Retrievals

evaluated

data

sets

specifiedofspecifiedr e t r i e v a l s will be available in a f o r m a t
p r o c e s s i n g of the d a t a .
ENSDF

-

-

Retrievals m a y

more easily

form
types

usable foroftapes,

ofdata

machineRetrievals in ENSDF f o r m a t for specified n u c l i d e s or n u c t i d e ranges orfor n u c l i d e s w i t h specific properties.
Level a n d / o r decay s c h e m e plots
a n d / o r l i s t i n g s of l e v e l p r o p e r t i e s a n d r a d i a t i o n s w i l l a l s o be
p r o v i d e d upon r e q u e s t .

CINDA and CPBIB CSISRS)
NSR

or

the

R e t r i e v a l s arein the form ofa v a i l a b l e for specifictape or l i s t i n g s .

input

criteria(asforR e t r i e v a l s are a v a i l a b l e for r e f e r e n c e s to i n f o r m a t i o n on n u c l e a r
s t r u c t u r e and decay properties of a n u c l i d e or for n u c l e a r r e a c t i o n s ,r e a c t i o n t a r g e t s or r e a c t i o n p r o p e r t i e s .
be made i n t e r l e a v i n g data

from:

- CSISRS and ENDF: in the f o r m of plots.
- Recommended and e x p e r i m e n t a l resonance
Plans are u n d e r w a y
BNL-325, Vol. I.

to provide

retrievals

parameters:ini n t e r l e a v i n g data f r o m

the

form

of

listings.

ENDF, ENSDF, and

vn.

144

-

Publications

A c o m p l e t e l i s t of r e c e n t
NNDC
p u b l i c a t i o n s a r e t h e following:
A

NNDC

3

Compilations
files

publications

isavailable.

neutronderivedExamplesof

NNDC

the center's

data

Newsletterofmicroscopic

data

from

N e u t r o n Cross Sections (BNL-325).
This r e p r e s e n t s - p e r h a p s t h e earliest a n d
b e s t - k n o w n e v a l u a t i o n of n e u t r o n r e s o n a n c e d a t a a n d c r o s s - s e c t i o n spublishedby t h e c e n t e r-Vol. I
resonance parameters: Part
A. Z * 1 - 6 0 . A c a d e m i c P r e s s . 1 9 8 1( P a r t B i s s c h e d u l e d f o r p u b l i c a t i o n i n 1982.)
Vol. II:
experimental
dataplottedagainst eye-guides evaluatedcurves:3 r d e d i t i o n . 1976

SNL-400
1970.

AngularC.

Bibliography

D.

CINDA a n d C h a r g e d - P a r t i c l e
proceedings and progress reports

E.

NuclearData

F. C o m p i l a t i o n
G. R e p o r t sofDistributions

IntegralSheets.

of R e q u e s t sfor Neutron-Induced

Charged-Particle
Reactionincludingfor Nuclear

on t h e E v a l u a t e d

Nuclearindices

Recent

Data

Data

Nuclear

Reactions:Data

edition.

(BNL-NCS-50640)

included

P. e f e r e n c e s .

3rd

in

conference

AcademicPress( E N L - N C S - 5 1 3 5 4 ) 1981

System(ENDF).

BNL-50446:
ENDF, B - I V D o s i m e t r y F i l e ( E N D F - 2 1 6 )BNL-50464:
EXDF B - I V C r o s s S e c t i o n M e a s u r e m e n t S t a n d a r d s ( E N D F - 2 2 5 1
BNL-50545:
ENDF, B F i s s i o n P r o d u c t D e c a y D a t a ( E N D F - 2 4 3 )3NL-NCS-17541:
E N D F / B S u m m a r y D o c u m e n t a t i o n . 3 r d E d . (ENDF B - V ) . 1 9 7 9(ENDF-201)
BNL-NCS-50300.
D e s c r i p t i o n of ENDF ' B P r o c e s s i n g C o a e s a n d R e t r i e v a l
Subroutines:r e v i s e d 1971 ( E N D F - U O )BNL-NCS-50496:
Data F o r m a t s a n d P r o c e d u r e s for t h e E v a l u a t e d Nuclear Data
F i l e . ENDF. 2 n d Ed.. 1 9 7 9 ( E N D F - 1 0 2 )H. NNDC t e c h n i c a l
1.

P.eDorts

reports

on d a t at o t h e DOE N u c l e a r

Dataevaluation
Corr.mittee. comciled

annuallv

- 145 -16

NNDC Role in ENDF
S. P e a r l s t e i n
May 1982
1.

ENDF/B is produced by the Cross Section Evaluation Working Group(CSEWG) which is coordinated by the NNDC.
The NNDC performs all
administrative and most technical tasks.

2.

CSEWG cosists of 3 main working committees 1) Evaluation, 2) Data
Testing and Applications, an-1 3) Methods and Formats, which are overseen by the Executive Committee. The Executive Committee consists of
the CSEWG chairman, representatives of funding agencies, heads of the
3 main working committees, and a few CSEWG members at large.

3.

Each main working committee coordinates the work of several subcommittees. Examples are shielding, utility codes, data status andrequests, dosimetry, etc.

The NNDC has responsibility for developing and maintaining codes tocheck ENDF data, prepare review kits, perform final corrections, anddistribute library and subsequent updates.
The NNDC also preparesand distributes ENDF related documentation.
The NNDC performs
several evaluations for ENDF/B including Cr, Ni, Au and U-235.

Some revisions to ENDF/B-V (Revision 2) will be issued in June 1982.
ENDF/B-V1 measurement standards should be completed in 1983-84.
ENDF/B-VI schedule is tentatively 1985-86. For ENDF/B-VI, no majorchanges in format are anticipated for neutron data.
Although ageneralized format is possible, revisions to present formats will be
preferred to minimize code changes. The expansion of the contents of
ENDF/B-VI will depend on the progress of such programs as the d+ld
source irradiation facility (FMIT), use of covariance matrices, biomedical applications, radiation damage, etc.

- 146 Appendix 17

COMPILATION OF THE JOINT EVALUATED FILE
NEA Data BankA.

Introduction
Following an initiative by the NEA Committee on Reactor Physics(NEACRP) at their meeting in September I960 a first meeting cf an
ad-hoc working group to initiate a collaborative programme of nuclear
data evaluation work in Japan and the European member countries of NEA
was held in Paris in November 1930. In October 1932 the NEA Steering
Committee approved the setting up of a Joint Programme on Neutron Data
Evaluations. A Scientific Co-ordinating Group was set up to determine
the content of the Joint Evaluated File (JEF) and to coordinate work innational research organisations associated with the periodic revisions
to this file.
The NEA Data Bank will act as coordinator of work on the Joint Evaluated File (JEF) and will also assemble and maintain the file. Other
tasks assigned to the NEA Data Bank are:
- Secretariat functions of the Joint Programme on Neutron Data EvaJ'jation.
- Assistance in the preparation and publication of summary documentation for the evaluated file.
- Implementation and operation of computer codes for verification andconsistency checking in evaluated files.
- Format translation of selected evaluation.

B.

Outline of Evaluated Data File
- The F.NDF/B-V format was adopted.
- Resonance parameters are not included in the evaluated data file.
There is, however, the following rule in the ENDf/B-V format:"Every EMDF file must have a File ?. even if no resonance parameters
ere given in order to specify the effective scattering radius."
According to this' rule, the evjiluGted dsta file should contain atleast scattering radii for all tha material.
- The data arc BI the moment given at C0!'.
•! r :•_;:..be r s (f'AI} a r c c'ctcr;:.L~;ni z>'J fc-j

- 147 -MAT = 4000 + Z*1C + the last digit of A.
example4925 = U-235
4633 = Eu-153

The First digit '4' was suggested by BNL. The above-mentioned rule
will be violated in some cases. For example, in the case where thedata of Mo-100 and Mo-nat exist, we have to make an exception as
follows:
4420 r Mo-nat
4421 = Mo-100- All cross section data are given in the pointwise tabulated form.
Therefore the following ENDF/B-V rule is not valid in our evaluateddata file:"Energy mesh size NP _< 5000"
Seme data files contain more than 10,000 energy points.
C. Computer Codes Used in the Compilation Work
iThe following programs have so far been used in the compilation work at
ths NEA Data Bank:- KTOEtranslates a KEDAK format file into EN'DF/B-IV format.
was modified:This program- To output values in the ENDF/B-V six-digit format.
- To output the inelastic scattering cross section to discretelevels.
The programme will later on be modified so it will be able to translate, in a r.cre general way, ths energy distributions (MFr5).
- LINEAR
changes the interpolation law defined in the evaluated file to a'Linear-Linear Interpolation 1 and reduces the number of energy
points. This program was used to create an input file to the code
RECENT. A maximum acceptable error of O.Ui was used in the calculation within the whole energy range.

- 148 -- RECENT
calculates pointwise cross sections from given resonance parameters
and background data.
A maximum acceptable error of 1% for both
calculations of pointwise cross sections from resonance parametersand File 2 + File 3 calculations was used.
RECENT reduces the number of energy points calculated to a number
which is enough to represent the cross section shapes within an errorof 1%. This reduction is done for the total, elastic, fission andcapture cross sections.
- CRECT05
compiles evaluated data in the ENDF/B-IV or ENDF/B-V format.
has the following functions:

CRECT35- It combines partially existing evaluated data files to one file.
- It performs all kind of calculations such as addition, subtraction, multiplication and division on an evaluated file.
Example: cr tot = *el * o- nonel- It modifies cross sections by partially replacing data with otherevaluated data.
- It makes a dictionary table in MF = 1, 1-iT = 451.
- It outputs data in the ENDF/D-V six-digit format.
• CHECKER5
tests the ENDF/B-V format.
- INTER5
calculates resonance integrals, Maxwellian average cross sections,
thermal values, fission spectrum average cross sections. A PDP-11
version of INTER5, written by A. Hasegawa, was used.
- FIZC0N5
checks ENDF/B-5 data for physics consistency and to see that recommended procedures are followed.
All the jobs with KTOE, INTER, RECENT, CRECT35 and FIZC0M5 were carriedout using the IBM 3033 computer at C1S1, Saciay, whereas CHECKER!? and
INTERS were run on the PD D -}] at t»»? !<EA Dct:.« Br-nk.

- 149 -D.

Assembling of the Evaluated FileIn the compilation work special attention was given to the following
points:- All the important flags in the EN'DF/B-V format were carefully checked.
- The consistency of Q-values and threshold energies.
AWR + 1.0
E

=

• Q
AWR

In the case when Q-values are not given in recommended data, we used
the Q-values calculated by H.owerton.
- Summation of partial cross sections.
The following rule for the ENDF/B-V format is also valid for the
total inelastic scattering cross section:"The total cross section is the sum of all partial cross sections andhas an energy mesh that includes all energy meshes for partial crosssections."
By assuming that the total cross section and total inelastic scattering cross section have the same shapes as the sum of their corresponding partial cross sections, the following calculations were
performed with the code CRECT35:- The total inelastic scattering cross section (MT = 4) = sum of MT= 51, 52, ..., 91.
- The non-elastic scattering cross section (MT = 3) = sum of allpartial non-elastic cross sections, e.g. MT = 4, 16, 17, 18, 102
up to MT = 1 1 4 .
- The total cross section (MT = 1) = the elastic scattering crosssection (MT = 2) + the non-elastic scattering cross section (MT =3).
•This total cross section and total inelastic scattering cross section
thus calculated with CRECTJ5 v/ill then have the same energy mesh as
the corresponding partial cross sections.
- As a result of the above-mentioned procedure, each material file contains the non-elastic scattering cross section.

- 150 -E.

Status of Compilation
Twenty-seven nuclides have so far been compiled in the ENDF/B-V format.
The format and the content of the files have been checked with thecodes CHECKERS and FIZC0N5. The following problems have been encountered in the translation and compilation work:- When calculating pointwise cross-sections from resonance parameterswith the code RECENT, the output data is given in a nine-digit floating point format, which is more exact than the normal six-digit
format. A conversion from nine to six digits will then result in a
lot of duplicate energy points with different cross sections. The
nine-digit format should therefore be used with a 0°K pointwise crosssection data file.
- The resonance region for some evaluated data files are characterisedwith single level Breit-Wigner formula. This can give rise to negative cross sections when pointwise data are calculated with the code
RECENT, because of incorrect background data in file MF = 3. This
problem can be avoided, e.g. by using multi-level Breit-Wigner formula instead.
- The computer code KTOE that translates KEDAK format to ENDF/B-IV
format does not, in a general way, translate energy distributions (MF= 5 ) . Some corrections will be m3de to this part of the program in
the near future.
- There have been requests from some users of the file that the original resonance parameters should be kept. It was not found to be easy
according to the ENDF/B-V format specification to include theseparameters in the pointwise cross section file. The suggestion was
therefore to create two files, one with pointwise cross sections andone with resonance parameters.

F.

Plans for Phase 2 of the Joint Evaluated File

The aim of Phase 1 is to prepare a complete neutron cross-section
library for release at the end of 19B2. The process of selection andassembly of files is planned to be completed by September 19B2 and theconsistency checks should be completed at the end of 1982.
These
consistency checks will include the comparision of 2200 m/s, thermal
Maxwellian, resonance integrals and fission spcctrur?. averages withavailable experimental data.
In the course of the assessment of the files for inclusion in Version 1of the Library (3EF-1), a number of nuclei have been identified as inneed of at least partial re-evaluation.
Scn;e o r minor improvements
will bs included in 3EF-1, but the major improvements, which also take
into arco'jn''. tNs results nf n-^v.1 "ic~z-ir'^^:>niz t vi'il be left for the proposed rp-evslustions for Version L' !. JET-?), which will bp devaiopea inPhase 2 of the project. ThE ojtlins plan is to release JCF-2 &t theend of 1965.

- 151 -Following the release of 3EF-1, a programme of benchmark testing will
be carried out. This will be in two stages. Stage 1, to be completed
at the end of 1983, will be to analyse simple benchmarks (including
several of the benchmarks used for ENDF/B-V testing, together with someselected European benchmarks). The distribution of work at this stage
will be discussed at the next meeting. It is hoped that the NEA Data
Bank will be able to participate in this phase, for example, by preparing group cross-sections and possibly also by calculating simple
integral properties using codes available at the Data Bank. In thesecond stage of benchmark testing, more complex assemblies will beanalysed, including assemblies for which the composition data have notbeen published.
In this case the results of the analyses will be
communicated to other participants so that the performance of thelibrary for a very wide range of applications can be understood.
In both stages of benchmark testing an important aim will be to try to
identify both the items of nuclear data responsible for discrepancies
and the preferred choices (when these are different sets of measurements upon which evaluations can be based).

G.

Availibility of the Joint Evaluated File (3EF)
The question of availability of the file was discussed at the last
meeting of the Scientific Co-ordinating Group and it was stated thatthe file will be available to member countries of the NEA Data Bank.
Reports presented at the meetings of the Scientific Co-ordinating Groupare confidential and should not be circulated outside members of thisgroup or members of the NEA Data Bank Committee.

- 152 18

Sxanxple of high energy neutron cross sections
The large variety of reactions with thresholds around 20MeV and above
makes i t impossible to compile these data in 3KDP/B (example taken fromdata compiled in EXFOR-VOO27).

Nitrogen ero»i-««ctlons
Energy in HeV
r.eaction
20

22

24

"a'-ic;155O.O
904.0

il543.O
993.0

1530.01003.0(n.n'l

24.4

'

26

28

1510.0 1405.0
999.0 989.0!

3011455.0
973.0

32

36

1422.0953.01351.0
903.0

20.7

16.9

14.0

13.5

;

10.1

9.2

16.3 ;

14.2 • 12.3

!

li.o

9.6

:

40

45

50

60.7

127--..0045.01173.0
7G0.O

G31.C

9O?.O
S3D.0

6.2

4.2

2.9

2.1

1.2

5.9

3.S

2.5

2.2

0.3

!r..2n)

20.0

19.6

!r...np). 115.0| 103.2:

04.7

67.6 : 57.9

!

49.8

45.0

27.1

16.8

11.2

0.4

3.a

(r.,3d)29.4

j 30.4

;

28.1

24.6

23.9

; 2o.o

17.8

12.1

7.9

2.2

3.9

1.6

:r..r.= )22.3

1 27.3

27.4

25.1

22.9

21.2

18.3

12.9

C.3

5.3

'

i7.2

19.0

23.5

26.3

25.5

25.4

18.7

11.7

1

1-3
13.9

4.5
1.5

9.3

;.,,.---,

5.7

1

:

< : i . :•.->=;

I(r.,.n?=!r.2a

;

13.5

;

26.3

14.£

.

•

2.1

5.0

5.5

5.3

4.9

36.6

26.7

ID.7

1.8

37.6

43.2

49.3

44.9

47.1

0.6

2.1

•» o

CO

11.3

9.0

10.7

9.5

5.7 •

0.7

9.0

o.o

6.6

4.4

4.C

1.9

2.5

5.0

C.d

1.2

3.7

7.0

11.4

14.2

(r., r.a.~'lr.,r.J?)

4.2

5.3

13.1

10.5

.23.4

24.3

:i.7

5.5

4.2

4.0

3.0

1.4

1.2

0.5

0.2

0.9

1.2

3.7

6.2

0.6

11.9

11.6

1.2

3.0

6.2

'

0.3

0.9

3.1

5.0

9.7

12.2

17.1

17.4

:

\~ , r.-:; j 22

0.5

1.5

2.8

(n.2a>

1.5

3.1

4.1

.

1

(r..2npo)2o
Icnpnp)(r. .r.pnn!

"I

!
;

"

, ~ ,p)

IE.2

15.C

12.9

11.5

10.0

9.4

0.5

5.4

4.5

3.5

2.7

tn.pr.)

176.3

155.3

133.1

111.4

99.2

B2.4

76.1

45.4

34.4

23.1

15.2

8.7 ;

0.6

1.6

2.5

1.7

1.3

C.7

- 153 -En«rgy in MeV
20

22

3 .6

3.3

•

1 0 .

13 .2

31.3

:

2<

26

28

30

32
1. 7

6

11.8

12 . 012 . 0

52. 5

71.2

32 .3

11.9
35.2

77 .2

79 .9

fn.jt)
In, ax)

:

40

•8

5

50

50.7

2 .9

3.9

I .5

2.5

1.5

9 .5

7.3

4 .9

3.4

1.9

73.9

37 . 0

37.5

2C.4

3.4

4.5

35

'

0 .5

i

3. 0

1.5

(r.,pnd)

2 .6(n.pnc)i° -1(r.,psni,

0. 1(n,pan)n2a

i

;

1.0

3.5

6.1

9.0

17 .9

! 23.2

2.2

6 .4

9.4

0.8

2 .1

3.3

4 .1

6 .4

:

0.5

0 .7

1

:

!n. ? r.d)n2a

'

.9

6

•

-

;
7

1.8

(n,da)

0 .5

1.4

1

3.3

5.5

'< 21.3

IS.8

919

7.S

S.3

7 .0

8.S

10.0

2 .1
2 .9

2.7

2.1

6.5

17.2
<;2.s

! 23 . 7:(a,?nn?l(n.pr.r.a)

•

'

.7

3 9

19.8

28 .3

37.0

25 9

21.1

;

-1

, 15.914 0; 12. S

11 . 4

9 3

3.0

6 .3

5.0

3.1

35 .6

34.5

i "• 5

19.4

13 .5

i 10.4

a

.6

5 a

3 .7

2.7

1.6

1.7

0

4.9

4 6

3. 9

3 3

2.9

2.2

;

2. 0

3.0
7.6

(n,da)i8j,(r.,dn?), r. ,c..i) ia

0.2(n,dan)2a
5. 9

2.S

: o.7
5

•

0 .

;

2. a

:

4>1

(r.,;p)

0. 2

9 7

3.3

<n, = )

15.5

9.4

12. 4
1

6. 4

1

0.9
5-0

i

"5

2 0

2.4

2• 7

4 o

'

7

•

3. 0

,

1.3

1. 6

l

1 .6

1. 5

I

- - 3

0 .8

:

i.o

1.6

{. 2.4
, 4

2 1

2.0

1.9

!

J-o

o. 7

.

0.7

0.2

0 .8

1. 3

2. 2

:

2.0

1 ^Q

1
;

7

*
2.0

(r,tn)(n,ca)2a

3.3

1. 7

0.9

I 1 5 . 7 14. 5
4. 0
. 5.4

;

2.4

.5

4. 1

i 13.6

12 . 7

!

3. 1

11. 4
2 4

3.7

-6

!

2.4
'.

4.3

,

3.9

3.4

10.3

;

7.5

6.3

1.6

:

l. 0

i

0.9

;

.
•

C.2

1.7
1.2

.

0.4

•

/continued;&e action•

22

20(p.,an)•3.1(n.ap)":

1.5(n,2<2'/:I| 28.6!
Ir.,snn)p2a '(n,snp)|(n,sr.d)2a'f!r. ,anc):

In,2a)

30

26

| 28

6 9

1.9

', 0.5

1.2

2. 7

;

2.3

! 2.6

2 4

1. 7
1. 7

7.4

!

3.3

3.1

2. 3

!
!

" 3
1.5

0.1

|

0.5

1.9

i 2 .2

2.5

C.G
•

0.7

'

0.7

10. 0

3.6

0. 3

•

!

0.3

0.4

0.4
3

0.6

i0-2

I°-

0.3

0. 9

; o.a

0.5

i 0.3

1.1

1. 3

1.3

1.7

i o- 2

; °2

0.3
1.5

1.5

1.7

0. 9

0.3

0.5

2.2

1. 9

1.3

2.3

2. 6
! 2 .•;

-•"
2.0

-•0

0.3

!
2

1.1
] 0.5

(

i

0 .3

1.1

1.3

i

!
'
|

i.o
i.5
1.3

(n,at)2a

!

4.5

5 .7

5. 3

1 5.4

: 4. 5

4.3

4.2

i

3.2

2.7

;

0.3

0 .9

!• 4

1.6

5

1.5

1.5

;

1.5

' 1.4

I

1. i
i

•:r.,2a)ta.".11 cross-sections in r^

5C.7

3.3

2.5

1.3

•

50

1.8

3.3

1

i

2.0

! 2 .3

I

45

<•!

3.2

2.7

i-

6.3

'3

12.3

40

1

3.5

2

21 . 336!

! 9 .3i
I !•4|15. 5i:

9 .7!r...-.pn);p.,aur)2a

32

1. 9

I 0 .5
I

' 24

I
1

!

2 "•

•* . * t!

3.5
i.O