International Atomic Energy Agency

D i s t . : G + Sp.

1 N

DC

INTERNATIONAL NUCLEAR DATA COMMITTEE

Report on the
FIFTH IAEA CONSULTANTS' MEETING OF
NUCLEAR REACTION DATA CENTERS
Brookhaven National Laboratory, Upton, N.Y.
29th September - 2nd October 1980
Including(0t h e 1 6 t h FOUR-CENTERS MEETINGWooao f THE NEUTRON DATA CENTERSANDt h e 6 t h MEETING ON CHARGED PARTICLE NUCLEAR DATA COMPILATION

June 1981

IAEA NUCLEAR DATA SECTION, WAGRAMERSTRASSE 5. A-1400 VIENNAReproduced by the IAEA in Austria
August 1981
81-3755Dist.: G + Sp.
Report on the
FIFTH IAEA CONSULTANTS' MEETING OF
NUCLEAR REACTION DATA CENTERS
Brookhaven National Laboratory, Upton, N. Y.
29th September - 2nd October 1980
Includingthe 16th FOUR-CENTERS MEETING
of THE NEUTRON DATA CENTERS
andthe 6th MEETING ON CHARGED PARTICLE NUCLEAR DATA COMPILATION

Abstract
This report summarizes the 1930 coordination meeting of the nationaland regional nuclear reaction data centers, convened annually by the
IAEA. The main topics are- the international exchange of nuclear reaction data bymeans of the "EXFOR" system,- the further development of this system,- the sharing of the workload for speedy and reliabledata compilation,- the exchange of specialized and evaluated datalibraries,
with the goal of rendering data center services tomeans of computer retrievals and printed materials.

Edited by
G. J. rtyanc
A. M. Daiydata

users, byTable of Contents
Page
AgendaList of Participants
Minutes
Conclusions
Actions and Recommendations
Glossary of Abbreviations

iii
iv
1
13
15
21

AppendicesA. List of Papers Submitted to the Meeting
B. NOS Status Report
C. KaChaPaG Status Report
0. FIZ Status Report (H. Behrens)
E.

NEA-D3 Activity Report (NEACRP-A-402)

F.

NNDC Progress Report

G.

Draft: Objectives of Che proposed NEACRP/NEAMDC
Meeting on European Evaluation Procedures

H.

Application of a DBMS at NEA Data Bank - Problems and Experience
with a Large Data Base on a Small Computer (N. Tubbs, et al)

1.

Actions arising from the 11th INDC Meeting, Vienna (J. J. Schuuut)

J.

NNDC Charged Particle "Barn" Book (T. W. Burrows)

K.

CINDA memo dealing with consistency in coding (G. J. Wyant)L.

Progress Report of CJD

M.

Activity Report of CAJaDN.

The CDEE Status Report

WorkingGrouppage iii

enda

1. Opening, Election of Chairman, Adoption of Agenda
2. Brief Status Reports from the Centers
3. Review of Actions of the Previous Meeting
4. Implications from other Meetings
5. Topical Discussions on Error Analysis and Error Correlations,and their Impact on Data Compilation
6. Data Center Services, Compatation Formats, Data Processinga. Data Center Services, Computation Formats
b. Data Processing
7. Center Heads Discussions
8* Working Group on Technical Matters (EXFOR, etc.) of Interest to
All Data Centers
9« Photonuclear Data
10. Nuclear Structure and Decay Data
11. Neutron Nuclear Dataa. Neutron Data EXPOR
b. CH2DAc. WHENDA
d. Evaluated Data
12. Miscellaneous, Conclusions, etc.

page iv

List of Participants

NNDC(National Nuclear Data Center, Brookhaven, U.S.A.)
M. R. Bhat (Part-time)
T. W. Burrows
A. M. Daly (Asst. to Meeting Secretary)
C. L. Dunford (Chairman)
M. P. Panelli (Part-time)
B. Magurno (Part—time)
7. McLane

S. Pearlstein (Center Head)
D. W. Swinford (Part-time)
G. J. Wyant (Meeting Secretary)
HEADB(CECD, Nuclear Energy Agency Data Bank, Saclay, France)
P. Johnston
N. Tubbs (Center Head)NDS(IAEA Nuclear Data Section, Vienna, Austria)
H. D. Lemmel

SaChaPaG

J. J . Schmidt (Center Head)(Karlsruhe Charged Particle Group, Fed. Rep. of Germany)
H. ELewe-Nebenius

NBS FDC

H. Muenzel (Center Head)(N.B.S. Photonudear Data Center, Washington, D.C.)

CJD

E. Fuller (Part-time)
Additional participants i n a follow-up meeting at the
TAT!A, Vienna, 16—if December 1980s

V. M. Bychkov
7. N. Manokhin

Page 1
Minutes
Note: Working pafpers are - not, in general * included inthis document. In the cases where they areincluded, they are referred to by the appendix inwhich they appear.
The Actions, Conclusions and Recommendations are
given in a separate section following the minutes.
Agenda Item J.

OpeningT Election of Chairperson, Adoption of Agenda

The meeting was opened by J. J. Schmidt on behalf of the IAEA. The
disappointing absence of representatives from CJD and CAJaD was noted.
J. J. Schmidt commented that he hoped to arrange a later meeting with
the USSR Center representatives in Vienna to discuss the NRDC
meeting's conclusions.
S. Pearlstein welcomed the meeting
Brookhaven National Laboratory.

participantsonbehalfof

C. L. Dunford was elected as chairman of the meeting.
The tentative agenda was discussed and adopted with one modification(see page i ) .
Agenda Item 2. Brief Status Reports from the Centers
H. Lemmel and J. J. Schmidt presented the NDS Status Report (seeAppendix B ) . The move of the IAEA to the Vienna International Center
caused a short interruption to some ongoing projects, and asubstantial backlog in CINDA coding.
H. Lemmel remarked that EXFOR programs seem to produce too many
extraneous error messages and perhaps checking codes should berelaxed. He re-emphasized the importance of receiving new EXFOR
dictionary codes in CP-Memos, prior to receiving the transmission tapein which the new codes occur.
In discussing customer services it was noted that evaluated data
requests far outnumber requests for experimental data. The status of
the NDS computation format was brought up. All center representatives
present agreed to exchange documentation on their computation formats.
The Japanese charged particle effort has fallen behind
unfortunate circumstances.
A search is still underway
appropriate location for their CPNO data center.

due
for

to
an

H. Huenzel and H. Klewe-Nebenius presented the KaChaPaG Status Report(see Appendix C ) . The progress of the "Book of Diagrams" wasdiscussed. J. J. Schmidt raised the question as to whether or not
errors would be included in the book. H. Huenzel replied in theMinutes

Page 2
negative, giving two reasons: it would be difficult to view the datagraphically if all errors were included, and the errors given byauthors are not always of the same type. Users will be encouraged to
look- to the Karlsruhe Charged Particle Data-Compilation <Physics Data
Series 15) for tabulation of errors.
The development of KARDIF, a program to extract data from the EXFOR
data base, was discussed and a document was distributed describing theoutput structure (see Appendix C ) .
The status report of FIZ was presented to the meeting (see Appendix
D).
Recent publications relevant to nuclear physics in preparation(within the Physics Data Series) were summarized.
N. Tubbs and P~. Johnston presented the NEA^DB' "Status Report.
(See"
Appendix E ) . The switchover to the PDP-11/70 computer and theadaptation of the Integrated Data Base Management System DBMS-11 wassuccessful. The conversion of NEUDADA into EXFOR format was reported
to be complete. The "ENDF/B-4/5 History Status Listing" and an "Index
of Evaluated Nuclear Data Files Available at NEA Data Bank" were
distributed (working papers 6 - 7 ) .
S. Pearlstein presented the NNDC Status Report (see Appendix F ) . NNDC
has assumed responsibility for compilation of the nuclear structurereference bibliography. The dosimetry and fission product files for
ENDF/B-V have been released. An updated set of processing codes for
the ENDF/B data base has been distributed. The meeting was informedthat the BNL-325 recommended resonance parameters (Z<60) are currently
available on tape.
~~

Agenda Item £.

Review ctf Actions from the Previous NRDC Meeting

The actions of the 1979 NRDC meeting were reviewed. All continuing
Actions are included in the list of actions for this meeting.
Agenda Item £.

Implications from Other Meetings

P. Johnston discussed the recent NEA Committee on Reactor Physics(NEACRP) meeting. The Committee addressed itself to several concernsof increasing complexity.
The calculations for lattice fuel rods in water will be finished by
April. There was interest In the data and codes used in calculations
for the study of criticality in reprocessing plants. Concern was
expressed about consistency problems with different Pu data sets.
With regard to the LMFBR benchmark, a proposal was made to do aburn-up calculation which will involve more nuclear data than wereused in previous benchmark studies. There was particular concern
about fission product multi-group data sets and the higher actinide
data that will be used. The production of a comparison of one-groupcross section sets for all of the relevant nuclides should result fromthis work. This data will come from Germany, the United Kingdom,

Minutes

Page 3

France, Japan and the U. S.
The Committee received a letter from the NEANDC commenting upon thelack of uniformity in representing uncertainties in the data files.
The Committee agreed with the NEANDC and replied that it supported the
NEANDC recommendation to adopt a uniform procedure. It was recognizedthat evaluators may have to depart from this procedure for users withparticular needs, i.e., the need for a high degree of confidence indefining the bound in which a particular item of data lies. The
increasingly common practice of quoting uncertainties as covariances
will meet the requirements and therefore, the problem will subsidewith time. If evaluators and requesters inform the Committee of more
specific practices which they would like to see adopted, the Committee
would be pleased to comment upon a more specific proposal.
The Committee discussed the situation of nuclear data evaluations in
Europe. P. Johnston remarked that it was timely for the Committee todo this, as the new version of the UK files was received this year.
There was very strong support from France, Germany and the United
Kingdom for a more coordinated approach towards data evaluation in
Europe. The Committee proposed that the NEA should hold a meeting
about the second half of November, 1930 to which'a few NEACRP and a
few NEANDC members be invited, including the chairperson of the NEA-DB
management committee (Appendix G ) . The stated objectives listed inthis wording paper were agreed upon by the entire NEACRP, although
representation was restricted to France, Germany and the United
Kingdom. It was believed that representatives from other European
countries would wish to participate at a later time.
In a summary of the above meeting objectives, P. Johnston stated that
the NEACRP sees as its ultimate objective, one European evaluated data
file, which all the NEA member countries would be encouraged to use.
The meeting showed a willingness on the part of reactor physicists towork toward common procedures and perhaps even common programs, bycondensing evaluations into their multi-group sets, as well as
considering more collaboration in the adjustment procedures applicableto these multi-group sets. The NRDC participants considered thesedevelopments reported by P. Johnston to be very encouraging.
J. J. Schmidt asked if any suggestions were made as to possible
improvements in the data centers. P. Johnston replied that reactor
physicists do not seem to deal directly with the data centers, since
they concentrate on adjusted aulti-group data sets and rarely go backto look at the differential data. There is more involvement on theirpart in code exchanges, which seem to work well, except in areas where
the codes are of commercial origin.
J. J. Schmidt reported on recommendations made at two recent (1930)
meetings (see Appendix B). The Neutron Source Properties meeting,held at Debrecen in Harch 1930, recommended that tne data centerscompile neutron source properties. The same conclusion was offered by
the Standard subcommittee of the INDC meeting in June of 1980. All
the NRDC members present agreed (see Action 43).
In regard to the Euratom Working Group on Reactor Dosimetry (EWGRD)

Minutes

Page 4

Meeting, J. J. Schmidt reported that although normally WRENDA input
comes from the individual countries, in this case the WRENDA input wasassembled by this working group, and it also wished to supply the
updated list for the next edition of WRENDA.
J. J. Schmidt also mentioned that the participants in the Advisory
Group Meeting on Nuclear Data for Fusion Reactor Technology, which
took place in Vienna in 1978, were aware of the need to have theuncertainties associated with evaluated data. They recommended thatthe data centers discuss this topic.
H. Lemmel had several comments to make in regard to the meetings
listed in Attachment 2 of the NDS Progress Report (see Appendix B).
He noted that one continuing NDS project is the compilation ofradiation damage and dosimetry reaction data. He urged that thecompilation of these data be given top priority, and suggested that
actinide data are also of great importance.
Both the Reactor
Dosimetry Meeting and the NEACRP Meeting on Intercomparisons of
Evaluations of Actinide Neutron Nuclear Data stressed the importanceof (alpha,n) cross sections. At the actinides meeting, a quite
interesting study by B. Patrick was reported, describing the effect ofdata uncertainties on the calculation of certain properties. It wasalso reported at this meeting that the half-life of Pu-241 may beaffected by chemical binding. This has engendered a greater awarenessof the need for a more accurate measurement of the Pu-241 half-life.
The International Fusion Research Council (IFRC) Meeting made thegeneral comment that there was a need for examination of fusion data,
but no- details were given. J. J. Schmidt commented that the Fusion
Council was very concerned with the Li-7(n,n't) reaction discrepancy.
A request was made that the NRDC meeting participants communicate thisconcern to evaluators.

Agenda Item 5,. Topical Discussions on Error Analysis and Error"* Correlations and Their Im pacts on Data Com pilation
M. Bhat presented a paper "Proposal to Include Detailed Information on
Systematic Errors in the International Data Exchange Files" (working
paper 10). This paper resulted from talks with experimentalists andevaluators at the Workshop on Evaluation Methods and Procedures held
at Brookhaven National Laboratory during September, 1980. Each itemof the proposal was explained by M. Bhat in detail.
J. J. Schmidt said it was not clear what the users of evaluated files
wanted, in terms of content and covariances. M. Bhat replied, sayingthat there are three problem areas where systematic error information
would be valuable, as follows:
1.

Standards: In this area, it is felt that the evaluations shouldbe "gold-plated", but many times they aren't even "tin-plated",
due to problems.

Minutes

Page 5
2. Dosimetry Reactions: Unfolding (as it used to be done) was anunder-determined problem. Under-determined problems in chi-squareminimization are fraught with hazard. One way to get around thisis to use prior information with variance and covarianceinformation.
3. Available Data: Unless all available information is used,
including the evaluations and the data uncertainties with theircovariances, it is not believed possible to arrive at accurate
answers. In these cases, generalized least-squares fits are used,which require a complete variance-covarianee matrix for input.
H. Lemmel asked where the responsibility for meeting these needs
should lie - with the experimentalists or with the data centers?
Would evaluators trust the data center files, or go back to theoriginal references in any event?
M. Bhat replied that whenevaluators go back to the original references, as they must, theneeded information is often not there. If the data centers required
experimenters to supply the needed information, the data available tothe evaluators would be more complete.
T. W. Burrows expressed concern that biased results would be produced
if only the neutron portion of the data was considered. M. Bhat
replied that the first concern should be to start a system with a setof minimum requirements, so that methods and formats would be ironed
out. Fine tuning of the system would come with time.
J. J. Schmidt moved that the meeting adopt the proposal to include
detailed error information in the data files for the case of anagreed-upon set of standards and dosimetry reactions. The NRDC
participants agreed to use the HEAHDC standards (H(n,p), He-3(n,p),U-6(n,a), B-10((n,a), C-12(n,n'), Au-197(n,g), U-235(n,f)) and thereactions included in the International Reaction Dosimetry File.
H. Lemmel asked if the Cf-252 neutron spectrum should be included
amongst the standards. B. Magurno commented that a National Bureau ofStandards Meeting would be held at the end of November, 1980, at which
the CSEWG Standards Subcommittee would discuss this question.
J. J. Schmidt requested that the conclusions and recommendations
resulting from the MBS meeting be distributed to all NRDC oemoers(Action 2 ) .
A question was then raised as to whether the proposal should be
implemented retroactively. It was agreed to implement the proposal
for new entries, and that data centers would improve older entries astime permits. S. Pearlsteln suggested that each data center completea sample compilation in the near future and exchange it with the othercenters.
The agreements reached concerning this session (worked out in detailoy the Working Group on Technical Matters) are summarized inConclusion 1 and Actions 17 and 27 - 30.

Minjt< sPage 6

Agenda Item £.
6.a.

Data Center Services. Data Processing
FormatsandComputatxon

Data Center Services, Computation Formats

V. McLane opened the discussion on data center services andcomputation formats by directing attention to two working papers
submitted to the meeting. The first, "NNDC Products and Services"(working paper 11), delineates the products and services offered tothe scientific community by the NNDC. The second, "CSISRS Library
Retrievals - Computation Formats", (working paper 12) describes thecomputation formats available at NNDC. Additional enhancements weremade as a result of a discussion last year between V. McLane (NNDC)
and P. Johnston (NEA-DB), where it was decided to attempt to maketheir respective computation formats as compatible as possible.
Except for a few minor differences (mainly standard and data errors),
the line computation formats are essentially identical. A joint
NNDC/NEA-DB fission product yield computation format was developed asa result of those discussions.
N. Tubbs proposed extending the current 132-character record format tosome larger number (perhaps 160 characters), in order to allow greater
freedom and sake possible genuinely compatible formats. S. Pearlstein
commented that if ninety-five percent of the data can be represented
in a 132-character record format, which most people find convenient,then the data centers have done their job.
In other cases,
applications programs could be written to manipulate the EXFOR format
itself. C. L. Dunford warned that the data centers should be aware of
the possibility of future changes, and the danger of restricting EXFOR
explicitly to a 132-character format. An attempt should oe made tominimize any problems that might result from any future expansion to arecord containing more than 132 characters, wherever feasible. The
participants agreed that, at this time, customer requests for mostdata still fit into a 132-character record, and there is no reason tochange.
H. Lemmel and J. Schmidt stated the particular attributes that they
believed the computation format should have. C. Dunford was concernedthat Vienna was just beginning to work on their computation format andhe hoped they would look at the NNDC and NEA-DB formats and try to
make their formats compatible. J. J. Schmidt and H. Lemmel assured
the meeting that the Vienna program developers would study the NEA-DB
and NNDC formats.
V. McLane mentioned that several enhancements were planned for the
NNDC computation format. Ratio data will be added, and there areplans to normalize data to the latest ENDF/B-V standards in the near
future.
P. Johnston commented that, recently, the effort was made to handle
automatic renonnalization of cross sections. It was hoped t m s
information could be easily accessed and updated with the latest
standard cross sections. It was found that under 'MONITOR' ana'STANDARD' fhere were reactions and values given m a t are not simple
factors, but are used in a more complex fashion. H. Lemmel statedMinutes

Page 7that only such reactions and values which are really used as a factor
should be coded under 'MONITOR', (see Conclusions 9, 10).
C. Dunford queried whether KaChaPaC had any problems with computation
formats. H. Muenzel replied that he felt uneasy about giving data tousers in a computation format as detailed error information was lost.
H. Klewe-Nebenius remarked that KaChaPaG is not really a service
center. Their main interest is not the dissemination of data, andtheir computation format is used only internally, for their own
purposes. C. Dunford and P. Johnston pointed out that NNDC and NEA-DB
provide the users of the computation format with a separate filecontaining the important BIB material, e.g., monitor, error analysis
information.
N. Tubbs observed that the direction of the development of thecomputation formats at each center would be dictated by the needs ofthe users. H. Lemmel suggested that it would be useful to bring
center personnel together after feedback had been received from theusers, to coordinate their efforts. C. L. Dunford noted that suchdiscussions might also include interchanges on developing otherprocessing codes to use the format, as well as determining exactly
what is needed, and, perhaps, dividing the work among the interested
centers.
6.b.

Data Processing

N. Tubbs distributed a paper by NEA-DB (Appendix H) describing theirexperience in converting to DBMS simultaneously with a computer change
and the consequent rewriting of all their data handling software. He
cited the advantages and disadvantages of DBMS, as he saw them. He
stated that their software under the new DBMS system would remaincompletely useable.
C. L. Dunford remarked that the NNDC philosophy about DBMS has
differed from that of NEA-D3 for various reasons. At NNDC, DBMS wasdeveloped as an option, as opposed to NEA-DB, where it was decided to
implement it within a certain time frame.
NNDC nas separate,non-interactive data bases for the center's separate systems.
J. J. Schmidt reported the revision of the request and dissemination
log.
There were also efforts made in programming evaluated dataprocessing checking codes.
H. Klewe-Nebenius reported the development of a publication-quality
program and programs for expanding EXFOR entries.
V. McLane discussed future plans for improvements in the CSISRS
system.
Storage and retrieval programs, currently based on the
ISO-QUANT formalism, will be rewritten to take advantage of thefeatures of the REACTION formalism. D. Swinford presentea a paper,"CODES, the CSISRS On-line Dictionary Exchange System" (working paper14) concerning the dictionaries and related user-code packages
currently in use at NNDC.

Minutes

Page 8
Heads-of-Center Discussion
The meeting of the Center Heads took place in a parallel session to
the subgroup on EXFOR concerns.
No formal statements were prepared, but several topics were discussed,
some of which were:- the problems of maintaining continuing center activities in theface of escalating costs,- the desirability of increased intercenter contact among staff at
the technical level, to supplement the combined technical andheads of center discussion that takes place at HRDC meetings,- the frequency of NRDC meetings
Although the resolution of problems occurring in the exchange of
information among the centers is proceeding smoothly, the number ofproblems to be resolved still requires that NRDC meetings be held at
regular intervals.
In the future, NRDC meetings will be scheduled adjacent to IAEA
Specialists' Meetings in related areas such as nuclear structure and
decay
data
becauseofoverlapping
centerpersonnel
andresponsibilities. The next meeting will be held in Vienna.
J. J. Schmidt reviewed the Nuclear Data Meetings planned for the next
three years (see Appendix 5, Attachment 2 ) . These are suoject toapproval.
S. Pearlstein discussed with the participants mail delays between tne
conters. The centers agreed to record the postmark date and thearrival time of correspondence and transmissions (see Action 3 ) .
J. J. Schmidt directed attention to an action from the June, 1980 INDC
meeting regarding evaluated file formats for double-differential data
(Appendix I ) . C. Dunford stated that the CSEWG Subcommittee on Codesand Formats was considering the matter (see Conclusion 14 and Action
4).
Agenda Item 8>. Technical Hatters (EXFOR, etc.) _of Interest _to all Data
Centers
A working group was formed consisting of T. W. Burrows, P. Johnston,
H. Lemmel, H. Klewe-Nebenius and V. McLane.
The group discussed
technical matters dealing with EXFOR and CPND (working papers 15 19). The results of these discussions appear under EXFOR Actions 16 27, EXFOR Conclusions 1 - 1 1 and EXFOR Recommendations 51 - 53.
T. W. Burrows submitted a paper describing the NNDC Charged Particle"Barn" Book (Appendix J ) . This book is directed primarily at tne
biomedical and fusion communities. The scope of the book and its
sources of experimental and evaluated aata were described. Sample
plots from the current version of the publication package were shown.

Minutes

Page 9
H. Huenzel expressed concern about possible duplication of effort by
KaChaPag and NNDC in the future. Although he did not share thisperception, S. Pearlstein assured H. Muenzel that he would be sent
sample plots as the "Barn" book developed.
Photonuclear Data
E. Fuller of the National Bureau of Standards reported on the U. S.
Photonuclear Data Center. At present, the center is behind in its
compilation effort due to personnel losses. The data for carbon,
nitrogen and oxygen, is undergoing final editing and will be publishedsoon. Some of the inherent problems in the analysis of photonuclear
data were discussed. Next year < 1981 > • an updated /ersion of thephotonuclear index will be available covering publications through1980.
A brief status of photonuclear experiments being done in the U. S.
was given. The gradual closing down of the "big machines1* in the
U. S. has caused a decrease in the amount of classical photonuclear
work (i.e., incident photons). Experimenters are switching to using
virtual photons. As a result, some data in the current- NBS
photonuclear review can never be confirmed.
He reported that the production of photonuclear data peaked in the
1970's, with an average of 170 works reported per year. In contrast,
the number of new works reported in the last three years has averaged
120 per year. Main reference sources consist of nine "core" journals
and preprints received directly from authors. Inverted keyword
indices from the Nuclear Structure Reference File have been suppliedin the past by the Nuclear Data Project at Oak Ridge National
Laboratory.
S. Pearlstein noted the transferral of the Recent
References work Iron 5ak~" Ridge National
Laboratory
toNNDC.
C. L. Dunford proposed to supply retrievals to the photonuclear data
center on a monthly basis.
S. Pearlstein asked H. Lemuel to investigate the kind of searches
possible on the INIS tape for photonuclear data. H. Lemuel inquired
about photonuclear data users, and E. Fuller replied thatthePhotonuclear Data Center supplied references, plots and data listings
to users, who range from the scientific community to the oil industry.
There are occasional requests from other areas.
H. Lemmel summarized a recent memo (CP-M/1) from the Center for
Photonuclear Experimental Data (CDFE), which gave its major aims,
future plans, staff and computer capabilities. The CDFE center
publishes annual information bulletins on photonuclear experimental
data appearing in Soviet and other journals. A tape was sent by CDFE
to Vienna in early August, 1980. The copy received by NNDC was
unreadable. NDS will send NNDC a good copy of the tape (Action 47).
E. Fuller remarked that the U. S. Center has data of probable interest
to the USSR.
S. Pearlstein said NNDC would offer the NBS Center
assistance and advice in converting their files into EXFOR format.
Discussions will take place between NNDC and NBS on this subject at a

Minutes

Page 10later date. Sample EXFOR data entries were given to E. Fuller. NHDC
agreed to send E. Fuller a copy of the CDFE tape whjsn it is received,
as well aa copies- of any memos received from other photonuclear
centers (Actions 48, 49).

Agenda Item 10. Nuclear Structure and Decay Data
C. L. Dunford remarked that nuclear structure and decay data werereally in the realm of another nuclear data network. The discussion
centered on the areas where•neutron data overlaps nuclear structure
data. H. Lemmel observed that decay information, fission neutron
spectra and nuclear temperatures are compiled in EXFOR. The CJDtransmitted decay gamma spectra in the EXFQE formatr he reported,
although the centers had agreed many years earlier that EXFOR was not
the proper place. H. L * ^ * 1 requested that the CJD set up a separate
series for this compilation. C. L. Dunford suggested that the "V"transmission series might be used.
H. Lemmel reported the start of a primitive half-life file by theactinide working group at NDS. The half-lives from the group's
evaluations and new half-life measurements were entered into this filein EXFOR format. ENSDF was considered to be too complex for theiruse. Experimental and evaluated data are flagged appropriately in the
file.
C. L. Dunford reported that delayed neutron yields from fission
precursors, spontaneous fission and level density information (allitems closely tied into theoretical neutron calculations) willcontinue to be included in EXFOR. S. Pearlatein noted that ENSDF was
an important source for extensive nuclear structure compilation.
Hewanted the nuclear community to be aware of the existence of thisoption. The meeting agreed that any purely nuclear structure data
shouldbe compiled
in
ENSDF
format and forwarded to NNDC
(Recommendation 54).
In regard to inquiries as to whether any work was being done on thecompilation of capture-gamma spectra, it was agreed that NNDC will
investigate the status of the last Bartholomew-Groschev compilation(Action 15).
Agenda Item 11. Neutron Nuclear Data
11.a. Neutron Data EXFOR
Participants reviewed the items remaining from working papers 15 - 19
concerned with neutron data. The results of these discussions arefound in Actions 3 1 - 3 9 and Conclusions 12 - 13*
11.b. CINDA
A CINDA memo dealing with the consistency of CINDA coding" wassubmitted by G. Wyant (Appendix K ) . The results of these discussions
are found in Conclusions 15 - 21.

Page 11

Minutes

Concern was expressed about the late arrival of the semi-annual CINDA
editions, some centers experiencing up to a five-month delay.
Printing and shipping problems for this publication were recently
compounded by the move of IAEA to the Vienna International Center.
Since the timely reception of CINDA is essential to its usefulness,the meeting participants jointly formulated a recommendation to the
IAEA requesting that CINDA printing and distribution be expedited(Recommendation 55). NDS was requested to investigate means ofexpediting CINDA shipments to the Centers (Action 45). NNDC also
requested from NDS a copy of the direct mailing list for
thispublication (Action 46).
11.c. WHENDA
J. J. Schmidt initiated the discussion on WRENDA by informing themeeting of actions decided upon at the June, 1980 IHDC Meeting(Appendix I). It was recommended that all national WRENDA requests
should be thoroughly reviewed. In addition, contributors should:- be informed that standard accuracy requirements should be statedwith a one-sigma error or otherwise specified in the comment
portion of the request,- state explicitly when the average value of the cross section in a
typical spectrum is needed (in the comment),- state explicitly the energy resolution requirements for covarianceassumptions, if any.
M. Bhat informed J. J. Schmidt that changes have been made in themethod of assembling the the U. S.
request list.
Selective
retrievals have be«n made and forwarded to the data evaluators forreview and comment.
The designated representatives for eachlaboratory have also, as in the past, received retrievals of therequests originating at their facilities for review. All comments andnew requests will be coordinated at NNDC and assembled* for further
comment by the CSEWG Subcommittee on Data Status and Requests. It is
hoped that this procedure will result in a more meaningful list.
M. Bhat questioned whether or not requests for electron-induced
reactions should be included in WRENDA. It was agreed that theyshould not be included (Conclusion 22).
1i.d. Evaluated Data
P. Johnston requested information about the evaluation procedures usedat NNDC and C. Dunford gave an overview. In the near future, NNDC
will provide pointwise data from ENDF/B-V, wnere possible, to NDS andNEA-DB (Action 5 ) . NDS and MEA-DB were asked to supply NNDC withcorrections and additions to the ENDF/B mailing list (Action 6 ) .
H. Lemmel related the NDS experience with trying to enter data into
the ENDF/B format, and the subsequent problems.
S. Pearlsteinsuggested that if he wisned to propose specific additions to theFormats and Procedures Manual, he write NNDC and the information would
be passed along to CSEWG. A request was made to all centers and their

Minutes

Page 12users for feedback to NNDC regarding the ENDF/B-V Manual. In regara
to the problem of entering data from spontaneous fission into ENDF/B,
C. Dunford distributed a proposal made to the CSEWG Formats
Subcommittee by L. Stewart, "Formats for Representation of the Prompt
and Delayed Nu-bar and Spectra for Spontaneous Fissioning Targets"(working paper 25).
C. L. Dunford informed the participants that the CSEWG Charged
Particle Subcommittee was working on an interim format for theexchange of evaluated charged-partide data. The centers would be
kept informed of any progress in this endeavor (Action 1).
Agenda Item 12. Miscellaneous Items
An updated version of "A Short Guide to EXFOR" (working paper 23) was
submitted by H. Lemmel and the new additions were summarized. V.
McLane distributed the table of contents for the "CSISRS Users Manual"(working paper 24). H. Lemmel stressed the need for the centers towarn their users not to use outdated EXFOR retrievals, as the data may
have undergine significant revision.
The list of actions, recommendations and conclusions resulting fromthe meeting were reviewed and corrected by the participants.

Pa8« 13

Conclusions
Conclusions regarding EXFOR
1. To permit more detailed specification
following data headings were added:
ERR-1.ERR-2, etc.
ERR-S
ERR-T

of

errors,the

Systematic errors
Statistical errors
Total error

These are for use with one-sigma errors only.
2.

The keyword CRITIQUE is to be added to Dictionary 2. This
keyword will allow comment on the quality of the data.

3.

Centers will continue to transmit superseded data. The
decision to keep transmitted superseded data is left to thereceiving center*s discretion.

4.

The proposed LEXFOR entry on particles. Section 2, is adopted
as it stands.

5.

The proposed LEXFOR entry on partial reactions is adopted as
it stands.

6.

The proposal in Memo CP-D/100 (multiplicity) is adopted.
Appropriate rewording will be added to the LEXFOR entry on
particles. Section 4.

7.

The proposal of Memo CP-A/23 (EXFOR keyword E-EXC) was
discussed at the last NRDC meeting. The arguments in EXFOR
Conclusion 15 of the 1879 minutes still stand.

8.

Items one and two of Memo 4C-3/241 (fission asymmetry andternary fission) are adopted with the light particles defined
as having a nuclear charge of less than seven.

9.

Under the keyword MONITOR, only that monitor data to which
the DATA given are proportional, will be coded. Other
information should be entered under the keyword ASSUMED.

10.

Data measured as consistency checks should not be coded under
MONITOR. They should, however, be entered in a separate
subentry if the data are available.

11.

The indication of free text layout is adopted as specified in
Memo CP-B/32.

12.

The total element yield is to be coded as submitted in Entry
21641.

Conclusions

13.

Page 14

Memo 4C-2/112(a) (coding of fission
productyields),incorrectly states the valid ways to code a metastable state.
The metastable state for a fission product may not be definedusing the DECAY-DATA keyword. It must be defined in Reaction
SF4 or by using the data heading ISOMER.

General Conclusions
14.

Evaluated file formats for double differential data is not a
responsibility of the NRDC Centers, at this time. The CSEWG
subcommittee on codes and formats is considering this matter.
H. Lemmel (HDS) will supply the subcommittee with a memo
(NRDC 1980 meeting Action #25).

Conclusions regarding CINDA
15.

General reviews will be entered in CINDA under the lab of thereviewer.

16.

If, in a review, there are informative comments on an
individual experiment, the review should be entered in CINDA
with the block of the experiment.

17.

Works in progress may be coded into CINDA, but not "planned
works" mentioned in review articles.

18.

Borderline cases relative to Conclusions 15 - 17 above,
regarding review articles, will be left to the compiler's
discretion.

19.

In the case where parts of an experiment are done at several
labs, the compilationin CINDA and EXFOR should beequivalent.

20.

As the centers become aware of an experiment performed and/or
reported by more than one lab, they should reach an agreement
as to which center is responsible for both EXFOR and CINDA
entries.

21.

The transmission of CINDA lines for entries being compiled
into EXFOR, before the EXFOR transmission of the data, is
acceptable provided the EXFOR transmission follows shortly.
Conclusions regarding WRENDA

22.

Electron induced reactions will not be included in WRENDA.

Page 15

Actions
GENERAL Actions

1.

NNDC

Provide all centers with information about
the proposed CPND interim evaluation
format.

2.

NNDC

Distribute to the other centers theresults of the Nu(bar) Symposium to beheld in Washington, D. C , November
20-21, 1980.

3.

ALL

Compare postmarks against tine-of-arrivalfor communications between centers.
Notify the originating center if there
has been an inordinate delay.

4.

NDS

Transmit a memo to CSEWG on the INDC
concerns regarding double-differential ENDF
formats.

5.

NNDC

Transmit, where possible, point-wise dataof ENDF/B-V to NDS and NEA-DB.

6.

NDS

Supply NNDC with corrections andadditions to the ENDF mailing list.

NEA-DB

7.

ALL(14) When Center staff attend specialists
meetings, collect and distributepapers relevant to the otherCenters' interests.

3.

ALL

(17)

9.

ALL

(1-8) Try to obtain feedback from users
about the status and quality ofevaluated data files.

10.

ALL

(19)

Provide other Centers with information
about types of data
- that should be assigned priority,- and those that are rarely or neverrequested.

11.

ALL

(20)

Inform other Centers when initiating adata review or special purpose
coapilation, so that appropriate
data may oe transmitted with priority.

Inform the other Centers about the
documentation of evaluations, and about
evaluations and comparisons of available
evaluations in progress within theCenter's area.

Actions

Page 1612.

ALL(21) Notify the other Centers of theexistence of specialized compilationsin any format.

13.

ALL

(32) Each Center should try to makecompleteness checks on those dataconsidered important by the Center,and report the results to the otherCenters.

14.

ALL(33) Give high priority to compilation ofdata relevant to proposed Specialists'
meetings.

15.

KNDC

Investigate status of last
Bartholomew-Groschev compilationof gamma-ray energies, and see
whether the latest version is available
in a computerized format, or any otherformat. (Chalk River Laboratory)
EXFOR Actions

16.

NDS

Supply KaChaPaG with a laboratorysorted version of Dictionary 3.

17.

ALL

Implement EXFOR Conclusion 1 (seeminutes) where feasible for standard
data and dosimetry data for radiation
damage in new entries and retransmitted
data. When the required error information is not contained in the publication,
the author(s) should be contacted.

18.

NDS

Review and clarify with the CJD
the use of SUPERSEDED in EXFOR.

19.

NDS

Inspect data sets 30319.002, 30328.011
and 30395.002 to see if limiting thenumber of EXFOR data fields to 18 isreasonable.

20.

ALL

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

21.

ALL

Laplement checking programs to verify
that compilers observe the LZXFOR ruleconcerning particles in reaction subfield 7 (SF7).

Page 17

Actions
22.

NEA-DB

Distribute a list of entries notcomplying with the LEXFOR particle
rule.

23.

ALL

Correct entries not complying with the
LEXFOR particle rule and retransmit.

2«.

NDS

Include all relevant flags, when anucleus is entered in Dictionary 27.

25.

ALL

Investigate evaluators' needs fordelayed neutron emission probabilities
for fission products and report thenecessity for compilation in EXFOR.

26.

NEA-DB

Submit proposals for coding ioncharges of fission-products that
NEA-DB has compiled.

27.

NNDC

Update the "Proposal to Include
Detailed Information on Systematic
Errors in the International Data
Exchange Files" for distribution.
Forward copies to INDC, NEANDC andother interested scientists fortheir comments.

28.

ALL

Supply NNDC with a list of parties
interested in the entry of systematic
data errors into the EXFOR file forthe purpose of reviewing the proposal
in Action 26 (above).

29.

NNDC

Analyze responses to the proposalof Action 26 and circulate theresults to the network. At thattine an update to EXFOR and LEXFOR
will be supplied.

30.

ALL

Do a trial EXFOR compilation of anexperimental data set, using the newformat for entering experimental
errors, and transmit it to the othercenters.

31.

ALL

Review new LEXFOR entries submitted
by V. MeLane and send comments
immediately.

32.

MDS

Write a LEXFOR entry for Thermal
Neutron Data.

33.

NNDC

Update LEXFOR chapters proposed in Memos
CP-C/75 (polarization memo) and CP-C/76(fitting coefficients) and retransmit.

Page 18

Actions
NNDC
NDS

Review the "to be superseded" data
sets in EXFOR and replace, where
feasible, with more current data,
as per P. Johnston letter of 26
August 1980.

35.

NDS

Add 'CHG' to Dictionary 31 and'CHG.FY' to' Dictionary 36, as per
Memo 4C-2/112U).

36.

NNDC

Update LEXFOR entry for fission yields,
to add charge distribution as per
Memo 4C/112U).

37.

ALL

Review earlier EXFOR entries forelemental yields and update inaccordance with Actions 34 and 35.

38.

KaChaPaG

Send a list of references currently
being compiled of (d,pf) and (t.df) data.

39.

ALL

Disseminate to each center the experiencesand difficulties encountered inconverting EXFOR data to a computation
format.

40.

ALL

41

Neutron(31)
Data Centers

Compile fission spectrum data in
EXFOR with priority.

42.

NEA-DB

Send to NDS a list of quantities
found missing in Dictionary 41 (see1979 EXFOR Conclusion 34).
(Note by H. Lemmel in 1979 NRDC minutes:
Partly done in January 1980 letter.)

(69)

(39)

Send to the other Centers representative
samples of their special formats derived
from EXFOR, i.e. edited format,
computation format, format with data
points merged by energy.

CPND Actions
43.

ALL

44.

KaChaPaG

The Nuclear Data Reaction Centersshould compile the properties of basic
monoenergetic neutron sources.
(47)

Make the results of INIS crosschecking for CPND available to theother Centers, when ready.

Actions

Page 19
CIHDA Actions
45.

NDS

Investigate means of speeding CINDA
shipments to the centers.

46.

NDS

Provide NNDC with a copy of themailing list used to send out
direct CINDA copies, for comment.
Photonuclear Data Actions

47.

NDS

Transmit a copy of the photonuclear tape received from CDFE
(Moscow photonuclear data center)
to NNDC.

48.

NNDC

Send a copy of the Moscow photonuclear tape to £. Fuller of MBS.

49.

NNDC

Send £. Fuller (NBS) copies of all
memos received from photonuclear
centers (series CP-M/, CP-UY).

50.

NNDC

(51) Transmit the new Bennan library,when it becomes available, in
EXFOR format to the other centers.

Recommendations

Page 20
EXFOR Recommendations

51.

Global error specifications, such as apercentage error for the entire
measurement, should be included under
COMMON and not coded for each data line.

52.

All centers will continue to compile
fission product yield data with highpriority.

53.

All centers shall discontinuecompilation of capture gamma spectra
until a need is demonstrated for suchcompilation.

54.

Any pure nuclear structure or decay data
should be compiled in ENSDF format andforwarded to NNDC.
CINDA Recommendations

55.

IAEA is urged to expedite the printing
and distribution of the semi-annual
CINDA editions.

Page 21
GLOSSARY of Abbreviations
CAJaD

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

CDEE

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

CINDA

A specialized bibliography and data index on neutron nuclear
data operated jointly by NNDC, NDCC, NDS and CJD.

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

CPND

Charged-particle nuclear reaction data.

CSISRS

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

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.

INIS

International Nuclear Information System.

KaChaPaG

Charged particle nuclear data group, Karlsruhe, Fed. Sep. of Germany.

LMFBR

Liquid-Metal Fast Breeder Reactor

NDS

IAEA Nuclear Data Section, Vienna, Austria

NEA

Nuclear Energy Agency of the OECD, Paris, France.

MEACRP

Nuclear Energy Agency Committee on Reactor Physics.

NEA-OBNEA Data Bank, Saclay, France.

NEANDC

Nuclear Data Committee of the OECD Nuclear Energy Agency.

NND

Neutron Nuclear Data.

NNDC

National Nuclear Data Center, Srookhaven National Laboratory, U.S.A.

NRDC

the Nuclear Reaction Data Centers.

OECD

Organization for Economic Cooperation and Development. Paris, France.

'4REJ1DAWorld Request List for Nuclear Data.

page 22APPENDICES

See Table of Contents for
document.

a list of Appendicesincludedinthispage 23
APPENDIX A
Liat of papers subm it ted to the m eating
Note: The papers marked with an asterisk (*) are
included in the appendices of the present
document. Copies of the others can be obtained,
upon request, from the originator or from NDS.

1. *NDS Status Report (Appendix B)• Attachment 1: request s t a t i s t i c s- Attachment 2: meeting summaries
2. 'KaChaPaG Status Report (Appendix C)
3. Structure of KARDIF (in German) (H. Huenzel)
4. •FT2 Status Report (H. Behrens) (Appendix D)
5. *NEAOB Activity Report (HEACRP-A-402) (Appendix E)
6. ENDF/B-4/5 History Status listing (P. Johnston)
7. Index of Evaluated Nuclear Data files available at NEA Data
(P. Johnston)Bank

8. •NNDC Progress Report (Appendix F)
9. *Draft Objectives of the Proposed NEACRP/NEANDC Working
Meeting on European Evaluation Procedures (Appendix G)

Group

10. Proposal for Inclusion of Detailed Information on Systematic
Errors in the International Data Exchange Files (M. Bhat)
11. NNDC Products and Services (V. McLane)
12. CSISRS Library Retrievals - Computation Formats (V. McLane)
13. "Application of a DBMS at NEA Data Bank - Problems and Experience
with a Large Data Base on a Small Computer (N. Tubbs, et al)(Appendix H)
14. CODES - The CSISRS On-Line Dictionary Exchange System(D. W. Swinford)
15. Comments on various matters and two proposals (Memo CP-B/32)(H. Munzel)
16. Multiplicity (Memo CP-D/100) (H. Lemmel)
17. Pending EXFOR matters (H. Lemmel)

page 24

APPENDIX A
18. New proposed LEXFOR entries (V. HcLane)
19. LEXFOR entries (CP-C/78) (V. McLane)
20. "Actions arising from the 11th INDC Meeting, Vienna.
(J. J. Schmidt) (Appendix 1}
21. *NNDC Charged Particle "Barn" Book (T. W. Burrows) (Appendix J)
22. *CINDA memo dealing

with consistency

incoding(G. Wyant)(Appendix K)
23.

Short Guide to EXFOR (A. Calamand, et al) (IAEA-NDS-1 Rev.1)

24. Table of Contents for CSISRS Users Manual (V. McLane)
25. CSEWG formats for the representation of prompt and delayed nubar
and spectra for spontaneous fissioning targets (CSEWG Memo)
In a follow-up meeting at the IAEA, Vienna, 16-17 December 1980, 7.N. Manokhin
submitted the following papers:
26. Progress Report of CJD (Appendix L)
27. Activity Report of CAJaD (Appendix H)
28. The CDEE Status Report (Appendix H)

- 1 Appendix B

NDS Status Report to the 1980 NRDC Meeting
H.D. Lemmel

1.

Sept. 1980

Staff
The organization of the Section as of August 198O is shown on thenext page. Daring the last year D» Muir left the Section, who had
mainly dealt with WRENDA, provision of targets and samples andresearch contracts to developing countries, etc.
G. Lammer, who had worked on CINDA and on the Progress Report in
Fission Product Nuclear Data, was replaced "by M. Lammer who had
occupied this post already years ago. In summer 19o*0» V» Pronyaev
coming from P.E.I. Obninsk, joined the Section and started workby converting USSR evaluated data to ENDF/B format.
Head of the Programming and Data Processing Unit- is now D.E. Cullen
as successor for P.M. Attree. Another new programmer is M. Seits
who has been with NDS already years ago and had worked, in the meantime, in the IAEA Computer Section.
One professional post continues to be vacant. As responsibilities
within the Section are shifted according to staff available, shortcomings due to this vacant post may show up in different activities.

2.

Move to the new building
The move of the IAEA to the Vienna International Centre took placein October 1979- In general, the move caused only rather shortinterruption of work. There was however a disturbingly long interruption of the IAEA Library services, from which our CINDA work
suffered noticeably.

3.

Budget and administration
Dae to increasing stringency in the budget, several IAEA programmes
including the activities of NDS were critically reviewed in 1979/1980.
As a consequence, significant amounts of manpower had to be used foradministrative matters, for providing input and output statistics,
and for various presentations of the NDS program* The result of thereview was, that the nuclear data programme should be maintained at
its present level. However, in order to allow, within this ceiling,
coping with the increase in services requested by area 3 countries,
several program items dealing with the review and co-ordination offission-reactor related data including the review of thermal fission
data, had to be dropped. The budget situation in general remains
very tough with respect to meetings and travel.

-25 -ORGANIZATION CHART OP THE NUCLfiAR DATA SECTION AS OP AUGUST 190O

Section and Data Centre Administration
J.J. Schmidt(Section Head)Secretariat of the International
Nuclear Data Committee

A. Lorenz(Deputy Section Head)

J.J. Schmidt (Soientifio Secretaiy]

U. Leidolf(Secretary)

A* Lorenz

B« Baumgartner(Secretary)

Huclear Reaction Data

Nuclear Structure andDecay Data

Atomic and Molecular Data

Nuclear Data Assessment
and Research Coordination

H.D. Lenunel (Head)

A. Lorenz (Head)

R. Langloy (Head)

J.J. Schmidt (Head)Km Okamoto
H. Payday
V. Pronyaev
0. Sohwerer
H. Lanuner
S. Aung (Secretary)

K. Okamoto (part time)If* Lamroer (part time)

K. KatBonis
D. Gremillet
E. Lanka (Secretary)
N. Fichtner (DPC)

N. Kooherov
K. Okamoto (part time)
A. Lorenz (part tino)
H.D. Lemma1 (part time)
N. Lammer (part time)I
Data Processing andProgrammingI
rv>

D.E. Cullen (Head)
M. Salts
H. Hondrickson (DSC)
K. NoLaughlin
B. Barge (DPC)
G. Mundy (DPC)
G. Hietel (DPC)

I

1
M

I

- 3 Appendix B

4*

CINDA work at NDS
In January 1980 CINDA work was taken over "by M. Lamraer, replacing
G. Lammer. As M. Lammer was familiar with CINDA operations, the work
i s continuing smoothly as far as NDS internal cooperation, book production
and coverage of scientific journals are concerned.
The i n s t a l l a t i o n of the library at the new Headquarters (VIC) took
longer than expected. Consequently, the prompt provision of new journal
issues and technical reports was temporarily interrupted and delayed. These facts caused a considerable backlog in the coverage of reports andsome of the journals. Particularly affected were the translation seriesof USSR journals. Not a l l of t h i s delay will be overcome for the CINDA8O
supplement, but hopefully for CINDA81.
For the same reason the coverage control entries from areas 3 + 4 arepartly incomplete. The f i l l i n g of the gaps in the coverage i s presently
in good progress.
An improvement was achieved in the layout of the CINDA8O book by
introduction of upper and lower case in the computer-printed tables 3(REF-codes) and 4 (LAB-Kjodes)» Further improvements in the text andtables part of the book are envisaged for future issues.
The program package processing the booktape as received from the
NEA Data Bank to the input to the photo—typesetting was left unchanged,
and we hope that t h i s can remain unchanged.
The number of CINDA e n t r i e s for each book sent to NEA Data Bank,
including revisions and CJD e n t r i e s , i s given in the following t a b l e :SuBmer 1976
Winter 1976/77
Summer 1977
Winter 1977/78
Suamer 1978
Winter 1978/79
Sumner 1979
Winter 1979/80
Summer I98O

2523 e n t r i e s
2030
2166
3586
7077"? /preparation for the thoroughly completed
8867J (and revised archival issue "CIKI^-A"
4176
I8O9
move to VIC, i n t e r r u p t i o n of l i b r a r y
ca 5000 expected-27 -- 4Appendix B
5.

EXPOR compilation

(KO)

5. a

EXPOR 3—series (Experimental Neutron Data)
Between June 1979 and July 1980, we compiled i n EXPOR d a t a fromabout 60 p a p e r s , o r i g i n a t i n g from t h e following c o u n t r i e s :EXPOR-entries
India
Australia
PolandYugoslavia
China (People's Rep.)
Hungary
Romania
German Dsm* Rep.
Pakistan
Bangladesh
Iraq
TaiwanSaudi Arabia

30 *
13

5
3
3
2
2
1
1
1
1
1
1
64

* The high number from India includes some backlog compilation
5.b

EXPOR V-Series (Evaluated neutron nuclear data)
Important evaluated neutron data, which are not available in ENDF/B,
UKNDL or KEDAK format, are compiled at NDS but not systematically. Some *of the more important data are:- revisions of the complete evaluations of the neutron reaction
data of P-31 and Ba isotopes by an Austrian group;- delayed neutron spectra by Saphir et a l . from I s r a e l ;- p a r t i a l evaluations on U and Pa isotopes from the People's
Republic of China.
I t should be noted that NDS has started to compile such evaluations
in ENDF/B format instead of EXPOR. However, as the Austrian P and Ba
evaluations show, there exist evaluated data for some t>artial reactions
that are not defined in ENDF/B SO that, in this case, the more flexible
EXPOR format was preferred.
EXPOR-V data transmitted in 1980 (Jan.-June) are summarized in thefollowing table- 28 -

- 5 Appendix B
V0012(Revised) "Neutron Nuclear Data Evaluations for
Using Statistical and Optical Model Calculation"
B. Strohmaier + ; Nucl. Sci. Eng, 6£ (197*) 368

VDO15"v Evaluation for Heavy Isotopes (Z > 90)"
F. Manero, V.A. Konshin; Atom. Energy Rev. ^0 (i°-72) 637

VO016"Neutron Nuclear Data Evaluation for 31p Using Statistical
Model and Coupled Channel Optical Model Calculation"
B. Strohmaier + ; Priv. Comm. (1980)

V0017"Delayed Neutron Spectra"
D. Saphier + j Nucl. Sci. Eng. 62 (1977) 660

V0018«*v of Pu-239"
Liu Tsu-hua; HSJ-75OO7 (1976)

V0019" F i s s i o n Cross Section of U-235"
Liu C h i - t z e j HSJ-77061 (1978)

VO020" F i s s i o n Cross S e c t i o n of Pu-239"
Liu C h i - t z e ; HSJ-75OO5 (1976)

VCO21" ( n , 2 n ) and ( n f 3 n ) Cross Section of U-238"
Chou You-pu; HSJ-77091 (1978)

TO022

"v
"

5.c

of U-235"
Chang Huan-qiao; HSJ-76041 (1978)

EXFOR D-Series ( C h a r g e d - P a r t i c l e Nuclear Reaction Data)
The EXFOR-D t a p e was r e v i s e d w i t h r e s p e c t t o t h e f l a g s i n t h e ENTRY
and SUBENT r e c o r d s a s agreed a t t h e K a r l s r u h e Meeting. The e n t i r e D - f i l e
was r e t r a n s m i t t e d , o m i t t i n g t h e DS—series of t r i a l c o m p i l a t i o n s of h a l f lives.
The following entries have "been made u n t i l now:
D0001

" E v a l u a t i o n of 9]3e(a,n) Cross S e c t i o n "K.W. Geiger + ; NRCC 15303

D0002" E v a l u a t i o n of 3H(p,n) Cross S e c t i o n "M. Drosg + ; Nucl. S c i . Eng. 67 (1978) 190

D0003" E v a l u a t i o n of ^H(d,n) Cross S e c t i o n "M. Drosg + j i"bid

D0004" E v a l u a t i o n of 3H(d,n) Cross S e c t i o n "M. Drosg + ; i b i d

DD005"Measurement of 3 n ( p , n ) Cross S e c t i o n "M. Drosg + ; i b i d

E0006

lf

Measurement of 2 n ( d , n ) Cross S e c t i o n "M. Drosg + ; i b i d- 29 -

- 6Appendix B
D0007"Measurement of 3>H(d,n) Cross Section"
M. Brosg + ; ibid

D0008

"Measurement of 3n(dtn) Cross Section"
D.K. McDaniels + ; Phys. Rev. 7C (1973) 882
and"Measurement of ^H(p,n) Cross Section
D.K. McDaniels + ; Phys. Rev. 6£ (1972) 1593
(both were renormalized by M. Erosg)

D0009"Measurement of 2 H(d t n) and ^H(p,n) Cross Section"
N. Jarmie + j Phys. Rev. 16C (1977) 15

D0010"Measurement of 3n(p,n) Crdkss Section"
R.G. Alias + ; Phys. Rev. <K3 (1974) 787(renormalized by M. Brosg)

0)011"Measurement of ^H(d t n) Cross Section"
J.E. Simmons + ; B u l l . Am. Phys. Soc. Q (AG4) (1968) 564(renormalized by M. Drosg)

E0012"Measurement of ^H(d t n) Cross Section"
0.D. B r i l l + ; Atom. Energiya 1^ (1964) 141(renormalized by M. Drosg)

B0013"Measurement of 3n(p,n) Cross Section"
M. Drosgj Priv. Comnu (1979)

ID014"Evaluation of ^H(d t n), ^H(t t 2n) Cross Section"
L. Stewart; LA-5828-MS (1975)

D0015"Measurement of ^H(t t n) Cross Section"
N. Jarmie + ; Phys. Rev. 111 (1958) 1121

D0016

"Calculated Reaction Rate for 3H(d t n), 3He(d,p), 2 H ( d , p ) ,H ( d , n ) , 3H(t,2n) and 3H(3He,X)Y"
B.H. DuaneT BNWL-1685 (1975)

2

IXJ017"Evaluation of 1 1 B ( p t 3 a ) Cross Section"
G.M. Hale; Priv. Comm. (1979)

D0018"Calculated Reaction Rate for 3 L i ( p , a ) , 6 L i ( 6 L i , X ) "L. Ruby + ; Nucl. Sci. Eng. 6^ (1979) 107

2001Q"Evaluation of 3H(t,2n) Cross Section"
G.M. Rale5 LA-7722-PR, LA-7596 (1?78)(with the a u t h o r ' s p r i v a t e communication, 1979)

D0020"Measurement of 24Mg(oc,n), 2 5 % ( p , n ) , 2 ^Al(p,n) and 2 8 S i ( a t n )Cross Sections"
C.W. Cheng + ; Can. J. Phys. 5 ^ (1980) 697

Note t h a t some i n c i d e n t a l d u p l i c a t i o n s with MDC e n t r i e s are s t i l l to
be d e l e t e d .
- 30 -

- 7Appendix B

5«d

SXFDR H-Series (Half-Life Data, t r i a lentries)This s e r i e s were p r e v i o u s l y coded a s D6000.
made by NDS so f a r :There a r e 2 e n t r i e s

H6001"The recommended h a l f - l i f e of Pu-239, Pu-238"
W. W. Strohm; I n t . J . Appl. R a d i a t . I s o t o p e s 2 £ (1978) 481

H6OO2"Proposed half—life values for the isotopes in the element
range 9OTh to 98cf»
Edited by A. Lorenzj nnX)(lTDS)-96 (1978)(Note: Data are superseded by revised values to be issued by the
IAEA Coordinated Research Programme on Actinide Decay Data.)

There is no intention to continue this series more systematically.
However, for half-lives of basic relevance to important neutron data^such as the Pu-239 half-life basic to the Pu-239 fission cross-section)
Eifor and in particular i t s BIB-Section provides a convenient tool forcompiling half-life information.

5.eStatistics
The figure on the next page illustrates the number of EXFOR
subentries transmitted by NDS per year, including new data, older
data and revisions. The figures indicate that the number of datacompiled is limited not by the number of data received but rather
by the manpower available.

- 31 -

Number of EXFOB subentries transmitted by NDS per year (including revisions)

8

o
o

o

o

EXFOR started in 1970
First years of EXFOH
concentrating on input,
output requiring 3H11
less manpower than
today

o
0
3

•a

The 2 main Exfor compilers Calamand and Lemley left at the s*me
time. The post3 werevacant for a whileand new staff had to
be trained until reaching efficiency in work

o
p
Z

•si,
c
3

ao
11

o
•-»
M
X

3
ca a
a
o
V

a
f>

This is the only yearthat NDS staff was complete such that backlog
accumulated in 74/75
could be compiled.
1978t Main compiler Yagubiajn.
left. Compilation staff C
used primarily for\
CINDA "Archi/al issue", I
EXFOE compilation fell^behind.
^1979* Normal year, includ-(ing soxe backlog from 73 *•'1930s one post being
vacant, completeness ofcompilation will likely
be insufficient

- 32

o
o

- 9 Appendix B
6.

The EXPOR System
We were very happy to realize that during the past year the EXPOR
System remained stable, as indicated by the small number of CP-Memos
exchanged.
Present Contents
The content of EXPOR is given in the table on the next page.
Please note that the statistical figures are subject to some uncertainty
in definition of terms. The term "data set" as given in the present
table corresponds to an entry in the NDS EXPOR Index. Usually an index
entry corresponds to an EXPOR Subentry excluding subentry 001. Often
however, an EXPOR Subentry produces several data index entries.
Compared to the last year's statistics it is interesting to see thatfor neutron data the number of data sets slightly decreased but the number of data records increased. This results partly from the finished
NEUDADA conversion and the consequent deletion of the 60 000 series, andpartly from the continuing contraction of old multi-dimensional tablesfrom many subentris into a single one.
Percentagewise, the most significant increase occurred in the numberof data records for- charged particle data : factor 4-5- nuclear quantities (i.e. that part of the neutron EXPOR
file where the incident particle is zero: nuclear temperatures, spontaneous fission, etc) : factor 2.5
The table, retrieved in July 1980, does not yet include the first"EXPOR-M" tape received from CDFE.
(OS)

EXTCR TRANS tapes received
The number of Exfor TRANS tapes received from the other centers
continues to be most satisfactory:
1980
Jan.—June
EXFOR tapes received
from other centers

22

All incoming Exfor TRANS tapes are run through the NDS Exfor checkprogram and disturbing errors are corrected as far as possible. A lis+of the error messages with explanatory comments i s sen+ to the originating
center. When important errors cannot be corrected by NDS, retransmissioni s requested. For the NND centers, a l i s t of s t i l l pending- retransmissions
requested by NDS has been distributed in Memo 4C-3/239 of 1980-04-23*
We apnreciate that NEA-DB promptly retransmitted most of the subentries
reouested in t h i s Memo. For Areas 1 and 4 Memo 40-3/239 i s mostly s t i l lvalid.

- 33 -

Content of EXFOR as of July 1980

Data sets(EXFOR subentries)

Numerical
data records

40 9002 570 000

neutron nuolear data, evaluated

6O4

39 40045 000charged particle nuclear data

2 730

49 900

135 000

photonuclear data (see note 3«)425

27 60032 800nuclear quantities and decay data(nuclear temperature, spontaneous
fission spectra, etc)869

13 00024 600neutron nuclear data, experimental

45 5002.70 milliont o t a l records(data + text)
3.28 million^.52

millionNotes;
1. A "data set" is usually defined as an "EXFOR subentry" containing for one nucleus a certain cross section
type as a function of energy resulting from one experiment. The size of a data set varies between one single
and several thousand data records. For certain data types, in particular double differential data,
resonance-parameters, etc., the definition of a "dr.ta set" varies as different arrangements in EXFOR
are possible. Actually, the figures given under "data sets" ara the number of index lines in the NDS
BXFOR Index. The first subentry of an entry containing text only, is excluded from the count.
2. The statistics exolude superseded data sets. Data once compiled and transmitted, are often subsequently
revised by the author. The data are then retransmitted, whereby the superseded data are erased at all
centres automatically. Compared to the figures of February I98O submitted by NDS to INDC there is a small
decrease for experimental neutron data in the figure of data sets but an increase in the number of data
records. This is due to the revision of the HEXF0R-6M serins and due to the contraction of double
differential data from many interrelated subentries into a single subentry.
3. The figures for photonuclear data do not yet include the first "EXPOR-M" tape received from Moscow
containing 93 subentries, 6200 numerical data records and a total of 7900 records.

oI- 11 Appendix B

7. EXTOR Dictionaries(OS)

Since the last Nuclear Reaction Data Centers' Meeting in October
1979, A dictionary transmission tapes have been sent out (9037 through9040). On an average 3 interim dictionary updates are made between
any 2 tape transmissions.
Requests for dictionary updates related to an Exfor TRANS tapeare very often received at NDS only after the TRANS tape has been
received and processed. This leads to many unnecessary error messages
and additional work in clarifying and correcting them.
In the cases of Diet. 27 (Nuclides) and 36 (Quantities) we canusually update the dictionaries without an information from the originating center. But when new codes are introduced we would very muchappreciate receiving the related CP-Memo before receiving the TRANS tapewhere the new codes occur.

8. Customer Services(ND)

Host of the data libraries existing at NDS were documented within
the scope of the "IAEA—NDS-...M documentation series* These reports
were widely distributed with the corresponding data library or separately upon request.
Nuclear Data Newsletter no. 1 was given a very wide distribution.
The announcement of the release and the availability 0? ENDP/B-IV General
Purpose File and ENDP/B-V data files gave rise to large number of requests
for these libraries.
Availability of ENDP/B-V Processing codes was announced by a circularletter sent to all recipients of the ENDP/B-V data files. This action
prompted a large number of request for these codes.
Nuclear Data Newsletter issue no. 2 is in preparation, after
regrettable delays due to our move to the new building.
We encountered increasing demand for general—purpose multigrouplibraries. We intend to distribute only those multigroup libraries which
are of general interest similar to a point data library. Typical examples
are those libraries which are issued by the originator in two versions:as point data and as group data} or the dosimetry reaction libraries which
are often issued in group structure (e.g. SAND-II).
Requests for nuclear calculation computer programs and associatedmultigroup data libraries are referred to the IAEA Liaison Officer at thecomputer program library of the NEA Data Bank.

- 35 -

- 12 Appendix B

9. Request Statistics
See Attachment 1 for detailed statistics.
originate

The tables given- partly from NDS reports to IAEA and to INDC; these cover theperiod up to the end of 1979*- partly from the Request Log as retrieved for the present Meeting.
Some conclusions are:
The number of countries from area 3 requesting nuclear data
information from NDS is increasing slowly but continuously. At present,
it is 30 countries.
The number of requests received per year shows, due to special
events (Trieste course, announcements of important new libraries received),some fluctuations but is generally increasing. The number of data sentout per request is significantly increasing.
On a long- term,-requests for evaluated data show a steeper increase
than requests for experimental data.

10. Meetings

Summaries of NDS Meetings held in 1980 are given in Attachment 2.
This includes also a l i s t of meetings tentatively planned in the period
1981-1983.

- 36 -

- 13 Appendix B
11. INDC reports
Please refer to INDC(SEC)-76 giving an index to all INDC reports.
Due to financial limitations the number of copies to be printed anddistributed, had to be reduced. However, some copies to be distributed
upon individual request, are available.
11. a WRENDA(ML)WRENDA 79/80 was published in October 1979. Details on requests
contained in this issue were reported at last yearns URDC Ifeeting in
Karlsruhe.
Before his departure in June 1980, D.W. Muir issued a "WRENDA
Input Guide" for the use of data centers. This guide describes in detailthe different formats used within the WRENDA system as well as the inputof new requests and the modification of requests existing already in thef i l e . Abbreviations to be used when coding requests, are tabulated.
In June 1980, the WRENDA operations were taken over by M. Lammer.
The publication of WRENDA 81/82 i s planned for Summer 1981. The WRENDA
update cycle was initiated in July 1980 by sending out "country r e t r i e vals" to INDC-members and INDC liaison officers in areas 3 + 4 andCanada. NNDC/Brookhaven and NEA-DB/Saclay received tapes containing a l lrequests from their respective service areas. The deadline for thereceipt of updated requests at NDS i s February 1981.
The recommendation of the INDC, that a l l WHENDA request f i s t s be
printed as a single combined l i s t with each request identified asassociated with'a specific application (e.g. fission, fusion e t c . ) ,has now been fully implemented (see WHENDA 79/80). Minor improvements continue in the progranmes, particularly with respect to sortorders and retrieval c r i t e r i a .

11.b Fission Product Nuclear Data (PPND)(ML)

The r e p o r t s e r i e s "Progress i n Fission Product Nuclear Data" i spublished annually, s t a r t i n g with i s s u e no. 1 i n November 1975* Up t o
December 1979 the information about a c t i v i t i e s i n the f i e l d , measurements and compilations/evaluations of FPND, contained i n t h i s s e r i e s ,was c o l l e c t e d by G. Lammer.
Issue no. 6, published as INDC(NDS)-113/0+P i n June 1980, wase d i t e d by M. Lammer. The number of c o n t r i b u t i o n s t o the s e r i e s could
be increased. For the f i r s t time c o n t r i b u t i o n s from USSR could be
included, thanks t o the personal e f f o r t of F. E. Chukreev from CAJaD.

- 37 -

- 14 Appendix B

12.

Programming and Systems Development(DEC)

GeneralSince the last meeting the EXFOR system of programmes was improved
and may now be considered up-to-daxe, including documentation. The Data
Index System, described below, is now operational for all of our data
files. The request and dissemination log systems are currently underreview and will be re-designed and implemented in the near future. In
addition, the utility of the EXPOR will be improved by providing a computation format for experimental data described below.
During the latter portion of 1979 and throughout 1980 there will bemajor changes in the computer resources available to NDS. The NDS presently has a remote job entry system, which allows jobs to be initiatedand computer output listings to be obtained locally. In addition the
NDS now has three visual display units which can be used for programme
development, maintenance of request and dissemination logs, as well as
on—line input and correction of data. During 1980 the present card—based
operation will be phased out and keypunches and verifiers replaced byremote data entry system including visual display units.
12.a EXFOR Programming
The system of EXPOR programmes for file maintenance may now be considered up-to-date. This includes: a thorough checking code, file management programmes, indexing and retrieval programmes and output editing
programmes (the latter to improve readability of EXPOR output). All ofthese programmes are systematically documented (for internal NDS use) toimprove utility and simplify maintenance.
A major new project will be the implementation of a computation
format. "The computation format will be designed to allow EXPOR data to
be put into a form which is easy to read and analyse using a computer.
For example, reducing all physically comparable data to the same set ofunits (e.g. all total cross—sections to barns) and a common format (e.g.
energy followed by cross—section), simplifies comparison of two or moremeasurements. The computation format will facilitate future graphicaloutput.
Implementation of the new computation format will draw heavily ofthe experience gained at Livermore in translating EXPOR data to the ECSIL
computation format (see: UCRL-5O4OO, Vol1, part B). Daring the last five
year all EXPOR data has been routinely translated to the ECSIL format.
During these five years almost one million data points have been successfully translated and a great deal of experience has been accumulated on
how to translate EXPOR data to any computation format.
12.b Request, and Dissemination LOP1 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 FDS. Together,- 38 -

- 15 Appendix B

the request, and dissemination logs allow us to determine what tjrpes of
information are required by our users, and to quantify the output fromour centre.
The entire request and dissemination log system has been reviewed
with the objective of improving and expanding the information stored in
the systeir in order to improve the types of statistics which may beobtained from the system; in particular usage patterns by isotopes,
country, type of data (experimental vs. evaluated), etc. Analysis indicated +hat the data base management system ADABAS and its associated programming language NATURAL can be used to store and retrieve information.
The Statistical Analysis System, SAS is used to prepare meaningful statistics.
The request log data base is currently being expanded to include
the required dissemination statistics, and computer programmes to update
and retrieve the information will be written. Currently existing computer runs which are used to fulfill requests will be expanded to produce
most of the required information that is to be added to the disseminationlog.
SAS (Statistical Analysis System Program) has been used extensively
in the past 6 months to produce detailed statistics of information fromthe request data base and will also be used to produce statistics fromthe dissemination log information.
An interface with the "Profile System" (see below) is planned which
will automatically retrieve names and addresses of persons in the profile
data base.
12.c The Data Index System
Instead of searching the large data files at NDS, many requests
can be more economically satisfied by searching relatively small dataindex files in order to determine which data satisfy a given request.
A Data Index which contains indexes to all of NDS's data files has been .
implemented. At present entries into the Data Index System are performed
automatically for all EXPOR data when a TRANS tape is merged into our
EXPOR master file.
For EXPOR data it is possible to retrieve data by reaction (by eachindividual subfield), author, institute, energy range, etc. For theevaluated data, at present, retrieval is only possible for whole evaluations; this facility will be extended when data requests indicate a needfor further detail.
12.d Profile System
The NDS maintains a computerized file of the names, addresses anda PROFILE describing the areas of interest for each of the centre's
correspondents. Areas of interest are described by the use of one ormore distribution codes. This file is used to selectively retrieve lists
or print address labels for the dissemination of publications or crresDondence.

- 39 -

- 16 -

Appendix B

There are currently more taan 4000 names and addresses stored in
the profile system master file; last year approximately 400 names wereadded and 150 per month changed. At present about 90 'profile codes'
are used which serve various purposes to produce reports and mailinglabels, e.g. for distribution of INDC documents, for retrieving listsof members of National Nuclear Data Committees and other affiliations,for retrieving meeting participants to include their names andaddresses in the proceedings and to produce mailing labels, etc.
'The profile system has been converted to use the Data 3ase Management
System, ADA3AS. At the same time the capabilities of the system have been
expanded and an interface to the request and dissemination sys+em has
been made possible.
12.e

CINDA P
The system of CINDA programmes that are operational at NDS are used+o check new or revised en+ries, retrieve from the master library andproduce the CI1IDA book. Production of +he CPTDA book requires two steps:
format conversion to a form that is acceptable to the photo—type-setT±ng
process, followed by the actual ohoto—type—se++ing. ^his system of computer programmes has remained pather stable over the years and only minor
improvements were done or are envisaged.

12. f Evaluated Da+a Processing
The growing number of evaluated data libraries (e.g. UKHEL, 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 evaluateddata to be used by our customers, these programmes must be distributedwith the data.
In order to avoid duplication of effort, programmes developed at otherdata centres are adopted for use at the HDS whenever possible.
HDS maintains and distributes to customers only elementary file handlingprogrammes. All requests for more complex programmes, such as multigroupprocessors, are referred to the IAEA liaison officer at the NEA Data Bank.
For conroarison to experimental data in the new computation format, aseries of programmes have been implemented to process evaluated data in
the ENDF/B format: this series includes reconstruction of energy dependent
cross sections from resonance parameters, Doppler broadening of crosssections, reconstruction of angular distributions from Legendre coefficientsand a plotting programme for cross sections, angular distributions andsecondary energy distributions. As soon as experimental data is available
in the new computation format it will be interfaced to the plotting codefor comparison purposes.
NDS has started to compile and check evaluated data in ENDF/B
format. This has become essential within the program components on
actinides, dosimetry reap, radiation damage, as well as conversionof selected important evaluations into ENDF/B format.

Appendix B
NIS Status Reportto the 1980 NEDC Meeting

Attachment 1

Reouest Statistics

A.

B.

Period 1Q79/8O
1.

Data Libraries most frequently requested

2.

Countries of area 3 that revested numerical data

3.

Number of requests by request category and area

Period 1965/1079
4«

Requests received and data disseminated by year (table)

5.

Nuclear data requests received per year

6.

Numerical data sets distributed per year- 1Appendix B

Data Libraries most frequently reoues+ed1978 - August 1Q80
figures include sel«c+ive retrievals and copies of entire library

326

SXPOR
ENEF/B-4

39

ENDF/B-5 S t a n d a r d s

27
22
39
19

Actinides
Dosxmetry
Pi s. Prod.
ENBL78JENDL1
UKNDL
French E v a l u a t i o n s
KEDAK4SOKRATORA u s t r a l i a n P i s . Prod.

52
18
40
6
7
7
9

Various group d a t a

35

ENSEF
J t l l i c h gannna l i n e s

18
14

CINDA R e t r i e v a l s
Recent References

31
13- 43 -

- 2Appendix B

Nuclear Data Requests Received from Countries of Area 3
Figures include only requests for numerical data, experimental orevaluated. A "request" is an incoming letter. (Note: in earlier statistics an incoming letter could correspond to more than one "request"
if several unrelated items for different purposes were requested in thesame letter. )1979
Algeria
Argentina
Australia
Bangladesh
BrazilChina, People's Rep.
Colombia
Czechoslovakia
Egypt
German Democratic Rep.
ftingary
India
Indonesia
Iraq
IsraelJordanKorea, Rep. of
KuwaitMexicoPakistan
PolandRomaniaSouth Africa
TaiwanYugoslavia

1980
Jan. -June

0

1

2

2

1
0

0
1

5

4

0
1

1
1

3
3

2

s

5
3

6
16

5

1
1

0
1

5

0

8
2
1

4

3

1

0
0

2

5
4
1

4
7
3

5
0

1
1

3

4

77

59

Additional countries that requested data in 1978 were:
Cuba
Ghana
Guatemala
Iran
Peru
Sierra Leone- 44 -

Number of incoming requests by area and request typeFigures are given for 1979/1980 Jan.-JuneRequestrecieved from

Evaluated
Data

Experimental
Data

Documents
and Reports

Bibliographic

Computer
Codes

Total

Area

1

1/0

1/2

12/13

0/0

0/0

14/15

Area

2

13/4

7/4

23/21

3/1

0/1

4^/31

Area

3

65/49

44/19

53/69

7/5

8/10

177/15?

Area

4

5/2

7/0

4/7

0/1

1/0

17/10

In this table a "request" corresponds to an "incoming letter". The size of request mayvary between a single document and several magnetic tapes full of data.

I
H

Data Request and Distribution Statistics 1965 - 1979

Experimental
Data

o\

Evaluated
Data

3

Documents

Other

Totalsper year

TotalsCumulative

—

-

3

73

73

5
8
9
5
8
8
8

45

3
48

138

211

183

474

685

327
420

560
403

1 245
1 648

857

2 505

1965
1966

40

-

-

1967

118

-

9

1968

119

-

16

1969
1970

15

25

20

34
43

1974
1975
1976

48
95
76
48
43
49
43
34

1977
1978

45
78

1979

63

1971
1972
1973

Combined Experimental and
Evaluated Data Distribution

Request Statistics

Year

33

60

23
22

54

24

61

49
43
49
88
93

114

153
232

177

95

6
6
3
9
3
39
18

135
144
93
157

Data Seta
per Year

Data Sets
Cumulative

577
737
876
1 001

2 308

4 813

7 274
8 081

12 08720 168

1 141

5 427

25 595

209

1 350

8 472

239

1 589

14 53334 06748 600

329
382

1 918
2 300

15 10023 691269

2 569

36 807

160
139
125
140

63 70087 391124 198sH- 5 -

Appendix B

Nuclear Data Recruest S t a t i s t i c s
Annual t o t a l 1965 - 1979

Uct.

....
i

i

;

1
i

i

i

i
i

,

•

i

;

l

i

•

I

.

$09-

i

|

i

<

1

1

i

1

i -

- -

1
!

aa

i

- -

•

-

•

• I"

+»
a
«

i

1
--

,
i

-1 *

4)

0

•I- 1

-

—

-

-

- 1

1

•

--

1

L

i

hi

1.

j.
—

I

—

_ - .

-

__.

—

i

.

*

I
t
•

|

[

I

i Tear

1
f

|

?f

or u

- 47 -

- 6 -

Appendix B

Numerical Kuclear Data Sets Distributed per Year(including experimental and evaluated data)t i . *j« .11 ' •• n " t t ' ' '.11 |;::s:::*J::::J'^.j::»-Mi;t.uti'.'*.r.*t"«.j . iji^xi^^.ilrrnti"!":^! *"*t"* .«.-n*txi"tt";1'fr*..irirUt'T.,+'i' fmm*»m*"*c"i!

LSIB=&-48 -! n i t t z i " ittrtt*i t ; * " r».»jinx

rivrtrniinurtmiiii

Appendix B
NDS Status Reportto the 1980 NRDC Meeting

Attachment 2

Meetings
Attached are summaries on the following meetings:
1.

Training Course on Nuclear Theory, Trieste, February 1980

2.

Neutron Source Properties, Debrecen, March 1980

3.

Nuclear Structure and Decay Data (NSDD), Vienna, April 1980

4.

Reactor Dosimetry, Petten, April 1980

5.

CEP Meeting on Intercomparison of Evaluations of Actinide
Neutron Nuclear Data, Vienna, June 1980

6.

CRP Meeting on Measurement and Evaluation of Transactinide
Isotope Nuclear Decay Data, Vienna, June 1980

7.

IJBC Meeting, Brussels, July 1980

8.

List of NDS Meetings planned for 1981-1983, subject toapproval- 49 -

Appendix B
Interregional Advanced Training Course on Applications of Nuclear
Theory to Nuclear Data Calculations for Reactor Design, International Centre for Theoretical Physics (ICTP), Trieste,
28 January - 22 February 1980
SummaryThis course, a follow-up of a similar course held in 1978,
was jointly organized by the IASA Nuclear Data Section and theInternational Centre for Theorexical Physics (ICTP) within theframework of the 1980 nuclear physics activities of the ICTP and
held at -she ICTP in Trieste frosi 28 January - 22 February 1920?
funded predominantly by the Technical Assistance Department of
the IASA. It was directed by J.J. Schaidt from the IAEA Nuclear
Data Section and Dr. M.K. Mehta frcra the Bhabha Atomic Hassarch
Centre, Bombay, India, with tha assistance of a local Organising
Goantittee headed by Prof. L« Fonda from the ICT? Trieste.
The four weeks programme of invited lectures (mornings) and workshops(afternoons) included a detailed review of recent advances in the theoreticalunderstanding of fast neutron nuclear reaction mechanisms and of neutroninduced nuclear fission and training in the applications of nuclear models
to the computation of neutron cross sections for nuclear reactor design, abroad introduction into the generation and processing of evaluated neutron
cross-sections, a detailed review of experimental and theoretical methods
used in the generation of 14 HeV neutron data, and, most importantly, thedevelopment of a proposal for the scientific programme of a planned IAEA
Interregional Technical Co-operation Project for Training in Basic Techniques
for the Generation of Nuclear Data Required for the Development and Applications of Nuclear Science and Technology.
The course was attended by 70 participants from 24 developing and 8
participants from 5 developed countries.
Compared to the course in 1978, this course achieved a better balance
between lectures and workshops, with stronger motivation of the participantsin an active co-operation in the workshops* Though due to limited funds theattendance at this course was not quite as large as at the 1978 course, thequalification of the participants was better than in 1978 and enabled strong
and useful interaction with the throughout excellent lecturers and workshop
leaders.
Because of their high up-to-date scientific and educational value thelectures presented at the course are planned to be published in the IAEASeminar series with a distribution preferentially to the developing countries.
The excellent collaboration of the ICTP and of the Agency* s TA Training
Section were very helpful for the successful organisation and conduct of thiscourse and are most gratefully acknowledged.

- 51 -

Meeting on Neutron_
Appendix B
POREWORD
In view of the considerable improvement in the accuracy andconsistency of the properties of neutron sources relevant to neutron
metrology achieved in recent years, the Lrternaxional Nuclear Data
Committee at its recent meetings*) recommended that a meeting on
Neutron Source Properties be held in 1980. In response to thisrecommendation, the IAEA Nuclear Data Section, with the support of
the Hungarian authorities, in co-operation with the Institute ofExperimental Physics of the Kossuth Lajos University acting as thehost, convened a Consultants' Meeting on "Neutron Source Properties"
during the week 17-21 March 1980 in Eebrecen, Hungary.
The meeting was attended by 29 scientists and more than 10
observers from 13 Member States.
The main objectives of the meeting, in addition to high-lighting
current important developments m this field were:—to review the requirements and status of all properties anddata on neutron sources such as mono-energetic neutron—producing
reactions, white source neutron spectra, spontaneous fission
neutron spectra, gamma—neutron and alpha-neutron sources, filtered neutron beams and thermal and epi—thermal pile neutron
beams. The neutron energies to be covered extend from thermal
to 40 MeV and above. Plasma neutron sources are not to be
included,—

to identify the uncertainties in the properties of neutron
sources and the corrections needed to improve the accuracy 'and consistency of neutron measurements, and—to formulate specific technical recommendations for future
work and its coordination.

The proceedings contain the review papers, the abstracts of thecontributed papers presented at the meeting as well as the introduction
and report on the summary conclusions and recommendations of the meeting
related to the following subjects:
1.

Radioactive Be(<x,n), photoneutron and spontaneous fission
source812.

White neutron sources and filtered beams; and3*

Mono-energetic neutron sources from charged particle reactions.

The proceedings, of which the foreword (above) and the table ofcontents (following pages) are reproduced here, will be published soon.

-52 -— V —

Appendix B
CONTENTSPage
FOREWORDiii

AGENDA .

ix

INTRODUCTION (A. B. Smith)

1

SUMMARY CONCLUSIONS and RECOMMENDATIONSWorking Group 1
Group 2Working Group 3(Radioactive (oc,n) Photoneutron andSpontaneous Fission Sources) • • • • 5(White Neutron Sources and FilteredBeams). 7(Monoenergetic Neutron Sources from
Charged Particle Reactions)

•

.

.

.

13

REVIEW PAPERS
R-1
R-2
R-3

R-4

Neutron Sources i n Perspective
A. B» Amith (Session I )Radioactive Be(a t n) <ind Be(y,n) Neutron Sources
K. W. Geiger (Session i )Neutron Energy Spectra of Spontaneous Fission
Sources. . • • . . • • • • • • • •X. 7* Blinov (Session I )

19
•

•

.

•

Thermal and Epi-Thermal Reactor Neutron Beams andFields

43

7

9

107

W. G. Alberts (Session II)
R-5

Accelerator - based White Neutron Sources
S. Cierjacks (Session II) - not available -R-6"

White Source Use in a Neutron Standards Laboratory
C D. Bowman et al. (Session II)

R-7

Reactor - and Accelerator - based Filtered Beams . • 135
A. J. Mill, J. R. Harvey (Session II)

R-8

Production of Fast Monoenergetic Neutrons by Charged
Particle Reactions Among the Ordrogen Isotopes.
Source Properties, Experimental Techniques andLimitations of the Data
K. Drosg (Session III)

R-9

Properties of Honoenergetic Neutron Sources fromProton Reactions with Buclei Other than Tritons
H. Drosg (Session III)

-53 -

. 119

201

• . 241

- vi «
Appendix B
Page
R-10

Production of 14. MeV Neutrons by Low Voltage
Accelerators
J. Csikai ( S e s s i o n IV)

263

ABSTRACTS OP CONTRIBUTED PAPERS
Session I
O1Emission Rate and Neutron Spec trust Measurements forB e ( a , n ) Sources . . . . . . . . . . . . .
E. ELuge, H. W. Z i l l

C-2

RadioiBotope Neutron Sources
Glenn F. Xholl

C-3

Radioactive Neutron Source Measurements at the
National Physical Laboratory, England . . . . . .
A. G. Bardell

297

Properties and Applications of Radioactive
Photoneutron SourcesFriedrich Bensch

298

Absolute Calibration of 2 52cf Sources and Bffectiva
Half-Life
H. G. Alberts, W. Kannhart, H. Matzke

299

C-4

C-5

C-6

C-7

.

.

.

.

.

.

.

295

.

5Saasuremnt of the Neutron A c t i v i t y of a
Sourco R e l a t i v e t o 'Tp for the Spontaneous F i s s i o n .
J. Frehaut, N. Beau

296

»

300

2

^5u c a v i t y F i 3 s i o n Neutron F i e l d C a l i b r a t i o n v i a the
5 2 c f Spontaneous F i s s i o n Neutron F i e l d . . . . .
7* S p i e g e l , C. M. Sisenhauer, H K. G i l l i a n ,j , A. Grundl, B. D. Me Garry, I . G. Schroder,H» S. S l a t e r and R. S. Schwarta
2

301

C-8

The Fast Neutron Emission Spectrna o f 2 5 2 c f
F r i e d r i c h Bensch and Hans J a s i c e k

.

.

302

0-9

Note on the Prorapt-Fisaion-Neutron Spectra ofu,
235U, 239Pa and 240Pa R e l a t i v e t o t h a t of 2 5 2 c f.
A. a a i t h , P. Guenther, G. ttinklor and R. HcKhight

.

303

C—10

C-11

.

A Radiative Neutron Source TrLth an E f f e c t i v e Energyof 500 eT
J. R» Harvey and A* J* H i l l
The Kaasaretcant of t h e Average Noinber of Prompt
Neutrons and the D i s t r i b u t i o n of Prompt ifeutron
Suisbors f o r 2 5 2 c f Spontaneous F i s s i o n . . . . .
Zhang Euan Qiao,' Liu Zu-Hua- 54 -

.

304

305

- vii Appendix B
Page
C-12

Jfeasurement of Prompt Neutron Energy Spectrum f o r
Spontaneous F i s s i o n of 252cf . . . . . . . . .
Mon Jiang-Bhen, Bai X i - x i a n g , Zhang B a i - s h a n ,Sueng-nisa

306

Session II
O13

The Current Status of Accelerator Produced Neutron
Fluence Standards at the National Physical Laboratory,
England307
A. G. Bardell

0-14

Neutron Yields from Proton, Eeuteron and Alpha
Bombardment of Beryllium
K. A* Lone

C-15

••

Flux Density Measurements in the FMRB Filtered
Neutron Bsams
W. G. Alberts, K. Khauf, H. Lesiecki

308

309

C—16 Examples of Theoretical and Experimental Da terminationsof Neutron Yield from (oc,n) Reactions i n the Light
Elements
310
A. Capgras
Session I I I
C-17

0-18

Production of Xbnoenergetic Neutrons with Energies
Between a Few Hundred KB7 and 40 Me 7 •G. Kaouat and H. Cance

311

Neutron Production i n the Energy Range 7 to 12 KeY
Using a Gas-Target . . . . . . . . . . . .
S. Kittag, W, P i l z , D> Schmidt, D. Seeliger and
T. S t r e i l

312

C-19

Limitations i n the Use of Deuterium Gas Targets
H. Klein, H. J. Breda

0-20

ftiltipurpose Intense 14 HeV Neutron Source at
Bratislava! Dasign Concept. . . . . . .
J. Fivarc, S. Hlavfic, J. £r&l, P. Cblozinaky,
I* Ribanslcy and I* Turzo

0-21

•

.

•

313

.

314

Nonoenergetic Neutron Sources in the Energy from
10 keV to 20 He 7 for Do sine try Experiments . . . .
M. Cosak, S. Guldtakke, H. Klein

315

C-22

Neutron Sources for the Radical Use
K. Tsukada

0-23

Neutron Source Investigations i n Support of the Cross
Section Program at th«s Argonne Fast—Neutron Generator*
Jacss H. r^adowa and Donald L. Su.ith
-55

-

316

317

— viii —Appendix B
Page
C-24

C-25

Liaits of Application of the Hethod of Racoil
Protons in Ifeutron Spactrocatry Using a NE 213
Organic Scmtillator
A. Capgras

318

Performance of Gas Target Using D('d,n) Reactions
as a Past Neutron Scarce « . . . . * . . .
Lian Tcm-chi, Ye J i n e - p i n g , Sa Dren

.

319

.

323

APPENDICES
Appendix 1:

Other papers (Abstracts) .

.

.

.

.

.

.

0-1 t

Measurements and Calculations of Neutron
Spectra frora 35 MzV Eeuterons on Ihiclc
Idthiua for the fTCT F a c i l i t y
D> L. Jolinson and F. M. Kann

0—2 t

Measurements of Neutron Spectra from 35 H&V
Deuterons on Thick Lithium for the 5KCTF a c i l i t y (Updated version of 0 - 1 )D. L. Johnson and P. M. Hann

0-3 t

Radioactive Neutron Source Spectra from°Be(a,n) Gross Section Data
K. W. Geiger and L. Van der Zwan

0-4 t

RSsunaS on Neutron Y i e l d s from ot-Particla
Bombardment of Light Elements
X. W. Geiger

Appendix 2 :List of P a r t i c i p a n t s

325

NSDD Meeting, Vienna, 21-25 April 1980

Appendix B

33a*ss33333£333333S33S33333a:s333333333

Summary of the Meeting
A. Introduction,
The fourth Advisory Group Meeting on Nuclear Structure and DecayData (NSDD) was convened "by the IAEA Nuclear Data Section at IAEA
Headquarters in Vienna, Austria, from 21-25 April 1980. The meetingwas "attended by 23 Scientists from eleven Member States and twointernational organizations, representing centres and groups concerned with the compilation, evaluation and dissemination of nuclear
structure and decay (USD) data.
The meeting was conducted in two separate sessions; the morning
sessions, devoted to the coordination of the NSDD network of centres
and groups were chaired "by Dr. J . J . Schmidt, the afternoon sessions,devoted to physics questions related to the evaluation of NSDD, werechaired by Dr. C. van der Leun.
B. Objectives
The international NSDD Network, consisting presently of
16 evaluation groups in 11 Member States and 2 international dataservice centres, aims at a complete and continuous nuclear structure
data evaluation of a l l isobaric mass-chains on a four year cycle, thecontinuous publication of these data, and their dissemination to thescientific community. This international cooperative effort i s coordinated by the IJuclear Data Section of the IAEA in cooperation with
the National Nuclear Data Centre (N1IDC) in the US.
The periodic meetings of the international KSDD network, have theobjective to maintain the coordination of a l l centres and groups
participating in the compilation, evaluation and dissemination of
1ISDD, to maintain and improve the standards and rules governing ITSDD
evaluation, and to review the development and common use of thecomputerized systems and data bases maintained specifically forthis activity.
C. Conclusions and Recommendations
While a more detailed account of the meeting proceedings will be
published in HIDC(1OS)-115/LN, the nain achievements, summarized asconclusions and recommendations, are listed below.
Summary of Conclusions and Recotsner.daticr.s- The meeting reviewed the status of the international NSDD Network, theprogress of mass-chain evaluations, and the current mass-chain evaluation
responsibilities. It concluded that even though a mass-chain evaluation
cycle of four years has not yet been achieved, the overall progress vas
satisfactory.

- 57 -

- 2 Appendix B
The meeting re-examined the NSDD mass-chain evaluation and review
procedures, and accepted the "Nornal Procedures for Kass-Chain
Evaluation" as adopted at the November 1577 NSDD meeting.
The meeting reviewed on-going and planned publications of NSDD, andrecommended that new information contained in horizontal compilations
be fed into the ENSDF f i l e .
The meeting reviewed the status of the Nuclear Structure Reference File,discussed i t s distri"bution and suggested ways to improve the quality ofthis f i l e .
The meeting reviewed the status of the Evaluated Nuclear Structure Data
Pile (ENSDF) and i t s associated system, and adopted guidelines for r e ferring to ENSDF as a reference in the open l i t e r a t u r e .
The meeting discussed the physics of NSDD evaluation, came to a numberof agreements with regard to terminology, and made substantial physics
recommendations aimed at improving the standards and rules governing
NSDD evaluation.
D. Next Meeting of the NSDD Network
Time and PlaceAt Utrecht, The Netherlands, during the week of either 3—7
10-14 May 1982.

- 58 -

Appendix B
mom-.

N. Kocherov
Nuclear Data Section

SUBJECT:

Report on the travel to the Euratom Working
Group on Reactor Dosinetry (5K3RD) Meeting

Summary
The EMGHD annual meeting took p l a c e i n P e t t e n , The N e t h e r l a n d s ,28-29 A p r i l , 1980.
15 p a r t i c i p a n t s from 6 c o u n t r i e s attended t h e n e e t i n g .
I was a c t i n g as an observer f o r t h e l i a i s o n between t h e IAEA and t h e
EWGKD.
The meeting a c t u a l l y c o n s i s t e d o f two subgroups which d i s c u s s e dthefollowing subjects:
1. nuclear data for reactor neutron dosimetry measurements
2. nuclear data for radiation damage calculations including a
topical discussion on gamma ray nuclear heating.
During the meeting of the first subgroup the status of the World
Request List of Nucleau Data (WREJDA), published biennially by the
Nuclear Data Section (IIDS) of the IAEA and the status of dosiaetry
f i l e s including the International Reactor Dosimetry Pile which i s now
under compilation i n IIDS were discussed.
During the second subgroup meeting the participants discussed theprocedures and the agenda of the 4th ASIM-Euratom symposium which i sscheduled to be held in March 1982 in Palo-Alto, USA. During the
topical discussion of gaana-heating, four reports were presented on
the techniques of nuclear heating measurements inside the core offission reactors.
The subject meeting was attended by 15 participants from 6 countries
and consisted of two sessions.

- 59 -

Appendix B

Session 1

The status of WRENDA was discussed. T informed the participantson the time schedule of future actions connected with the next issue of
WRENDA. The participants decided to assign the responsibility for r e viewing and updating the requirements for neutron dosiraetry reaction
data to Dr. W. Zijp, who will coordinate t h i s activity inside the
ENGRD. The participants requested 2ID3 to stress the fact that theentries they are sending are in fact international requests and asked
to reference them as follows; Dr. W. Zijp, SVCRD.
R. Dierckx (ISPRA) proposed to include requirements for D+Li source(PMIT f a c i l i t y ) dosimetry measurements into the next edition of WHE27DA.
This would mean essentially an extension of the neutron energy range ofinterest up to 40 HeV and, possibly, an inclusion of one or two newreactions.
The status of dosimetry f i l e s was also discussed. I have reported
on the status of IRDF and the participants showed t h e i r i n t e r e s t to havei t as soon as possible. The format of the covariance matrix presentation
was a matter of concern of the participants. Most of them do not havethe possibility to use the 620 group format because of computer time
limitations. An attempt to reduce the covariance information to
15 * 15 group format was reported by W. Zijp. The meeting agreed
that a limited number of groups would at present be sufficient fora l l practical purposes, and also that an attempt to standardize agroup structure would be d i f f i c u l t .
The EWGRD Nuclear Data Guide was discussed and the opinion was thata new edition should be issued in 1981 or 1982.
Session 2
The procedures and agenda of the future 4"th ASTU-Euratom Symposium
on Reactor Dosimetry and Radiation Damage were discussed. The participants
proposed the following items to be discussed at the Symposiums
Damage correlations (changes of properties)
Uncertainties, adjustments, codes
Fuel dosinetry
LWH surveillance (including PV surveillance)
Past reactor systems
The proposed agenda was sent to ASTtf for consideration.
The plans- for new measurements were considered. The points ofmajor importance were updating of graphite i r r a d i a t i o n data and newmeasurements of llb(n,n') cross-section at spot neutron energies of
1, 2, 3t 4 &od 5 MeV* to be made i n Birmingham, UK.
During the subsequent topical discussion four reports were presented on the techniques of measurement of nuclear gamma heating inside
the cores of fission reactors.

- 60 -

Appendix 3
Summary on the Third Research Coordination Meetingof the Coordinated Research Project (CRP)
on the Intercomparison of Evaluations of Actinide Neutron Nuclear Data
The Third Research Coordination Meeting of this Project took placein Vienna, 12-13 June 1980. For the 2nd Meeting in Aix-en-Provence,
30 April - 1 Hay 1979, see the Summary Report INDC(ND3)-104. AT. Abstract
was included also in INDC(NDS)-111 pages 7 + 8.
Since then, Cadarache and Stuttgart became new participants of the
CRP, which includes now 6 participants from Vest Europe plus 5 from India,
Israel, Japan, Romania, USSR.
The evaluations performed by the participants were included on a tape/ " (IAEA Nuclear Data Library for Actinides). The present contentsof this tape is documented in the report "IAEA-NDS-12" (see Appendix).
The work of the participants is part of their national programme.
The purpose of the CRP is to stimulate critical intercomparison of theevaluations and scientific information exchange among participants, andto feed the results into a common file.
Whereas at the Aix-Meeting in 1979 guidelines for the methodology ofintercomparison were designed, the Vienna Meeting 1980 was devoted verymuch to details of intercomparison, in particular concerning nuclear theory
and statistical parameters. The meeting was chaired by F. FrShner.
The participants presented progress—reports on their work, reports
and intercomparisons of evaluations completed, as well as papers on specifictopics, in particular about the application of nuclear theory. See thelist of papers on page 9* These papers are not appended to this summary
report but are available from the IAEA Nuclear Data Section upon request.
A summary of finished and planned evaluations and interconrparisonsof actinide neutron nuclear data is given on page 23*
Some of the discussions that took place at the meeting are summarized
in the following:
1.

C Lagrange: On the usefulness of coupled channel calculations for
actinide nuclei.
"
This paper was presented by J. Salvy. It demonstrates on several
examples that noticeably better results can be obtained from deformed
optical model calculations as compared to spherical optical model
calculations. For the heavier actinides deformed optical model calculations appear therefore to be prefarable, although the computer
time involved ia often considered prohibitively largei. On the other
hand, a work by U. Fischer, Karlsruhe (report KFK-2907, Feb. 198O) was
available which claims that the 3pherical optical model is stillsatisfactory for U and Pa isotopes.

2.

M.K» Me"hta reported on calculations of (nt2n) and (nT3n) cross-sections
based on statistical models. Above the\n,3n) threshold the Pearl steintheory (1965) underestimates the (n,2n) cross-section and overestimates- 61 -

Appendix B
the (n,3n) cross section. Various calculations performed sincethen were reviewed and their merits discussed.
3.

B.H. Patrick presented a summary of the document NEANDC(UK)-174 •INDC(UK)—34: An assessment of the accuracy requirements on higher
actinide nuclear data for fast reactors, by B.K. Patrick and M. G.
Sowerby. This paper considers for a specific fast reactor spectrum
the production of six actinide isotopes, the a heat and total heat,
the spontaneous fission rate, the (<x,n) yield and the total neutron
yield. It was found that the calculation of these data suffers
mainly from the uncertainties in
Np-237 (n,2n)
Am-241 (n,y) Am-242*
Am-243 (n,y)(oc,n) cross—sections
Pu-241 half-life
The accuracy of fission cross sections was considered sufficientfor this calculation. Similar calculations for other configurations
may indicate insufficient accuracies also for other data. Amongothers, Dr. Bobkov stressed the need for more accurate U-234 (n,3n)
data. Although Patrick's calculation was made with one group only,
it was considered important and similar calculations should be
encouraged, possibly with more groups, and for other reactor types.

4*

B» Derrien intercompared the average resonance parameters for Am-241
as assumed in Cadarache, Bologna, Harwell and Karlsruhe." Similarly,
the Pu-242 parameters assumed at Minsk and Karlsruhe were compared.
It was concluded that the knowledge of level densities and in particular their variation over large energy ranges presents a problem,and better theories are required.
Mr. FrOhner emphasized the importance of more accurate knowledge ofthe average level densities and their dependence over large energy
ranges. A specialists meeting on this topic seems to be desirable.

5»

IT. Kocherov presented a compilation of integral actinide crosssection measurements in facilities of which the spectrum was sufficiently well described, such that these measurements can be used as
bench-mark tests for the actinide3 evaluations. Participants wereencouraged to perform corresponding calculations to test theirevaluations. The fact that for each facility the spectrum is described in a different group structure, will create some technicalproblems. Another limitation is, that none of these spectra wasconfirmed by experiment but only by calculation resp. evaluation.

6.

H. Conde, as an observer from the Swedish Nuclear Data Committee,
presented the report KDK—35 containing a voluminous numerical andgraphical Compilation of Actinide Neutron Nuclear Data. This wasconsidered as amost valuable contribution upon which the CRP participants can base future intercoraparison work. It was recommended that
this Swedish compilation work should possibly contint'.s..

7.

A. B. Smith, as an observer from the US, reported about some problems
encountered in the field of actinides evaluations in the frame of

ENDF/B-5.
- 62 -

Appendix B

He referred in particular to the reports
A N L / H I M - 3 2 by Poenitz et ai about;
A2H/17U4-35 by Meadows et al about Th-232j
a paper to be published in Nucl. Sci. Eng. byPoenitz about total neutron cross—sectionsof heavy nuclei;
A N L / N I W - 5 0 being in press about fission spectraof actinides;
BNL-325 resonance—parameters with a new edition
being in print, and being also available on tape*8.

The need for critical intercomparison of different evaluations on
the same nuclide was stressed again. Guidelines for the intercomparison were discussed and laid down at the previous CRP Meetingat Aix; see report INDC(NDS)-104. As not all of the evaluations areproduced in E H E F / B formatt there are some technical difficulties
encountered. It was therefore highly appreciated that Mrs. Mattes
from the University of Stuttgart joined the CRP with the intentionof concentrating on intercomparison, format conversions and related
problems.

- 63 -

Summary on the Third Research Coordination Meeting

Appendix Bof the Coordinated Research Project (CBP)on the Measurement and Evaluation of Tranaactinium Isotope Nuclear Decay Data

Introduction
The third meeting of the participants in the IAEA Coordinated Research
Programme (CRP) on the Measurement and Evaluation of Transactinium Isotope
Nuclear Decay Data, was convened by the IAEA Nuclear Daxa Section on
12-13 June 1980, at IAEA Headquarters, Vienna. The meeting was chairedby A. Lorenz, IAEA Nuclear Data Section.

Main Objectives
The principal objectives of this meeting were to review the statusof measurements performed by the participants in this progracae, to review
and extend the l i s t of proposed half-lives, and to continue the review ofthe status and accuracy of ganaa-ray and alpha emission spectra for thetransactinium isotopes.
Conclusions and Results of the Meeting
The meeting revieued the existing- and planned programmes for themeasurement and evaluation of transactiniun isotope nuclear decay dataof each participating research group. In particular, the meeting- reviewed the decay data requirements defined at the second IAEA
meeting on transactinium isotope nuclear data (Cadarache, Kay 1979) >and identified the data for which the accuracy requirement had not
yet been met;
- updated and extended the l i s t of proposed trans act ini-ori isotope
half-lives published in HJDC(2ros)-1O3/tI (September 1979), anddecided to release the new version of this l i s t ;- continued the detailed review of the status and accuracies of -healpha and garama radiation spectra (Ea/la and Ey/ly) emitted in
the decay of transactiniun isotopes.
The participants of this CRP agreed on the date of t h e i r next meeting?
i t was proposed to be on 17-13 September 1931 in Vienna, directly preceding
the scheduled zeeting of the International ITuciaar Data Co=zi~tee.

Appendix B
Extract from:

BRAFT
Minutes of the 13th IFRC Meeting
Brussels, Belgium
30 June and 11 July 1980

2. IHicleir, Ato.Tic and ?!olecular Data for Fusion.
The Council briefly discussed the current activity of the IAEA
in the fields of ITuclear, Atomic and Molecular Data for fusion.
In connection with I3T0R project the Council invited the Agency
to discuss with the Workshop participants the specific A and M datanecessary for the project* It recommended also to examine the needs
I in nuclear data that are important for the processes taking place( in the blanket of the device.
The Council felt thax all the above mentioned issues could be
discussed between the Steering Cosanittee to the I2JT0R Workshop and thepeople at the Agency involved in the field of ffuclear, A and M data.

- 65 -

Appendix B

NDS Meetings PlaMtt2^£2£,ll§|=r_i2§|ia,2=-i2£=--222l2I2i

Nuclear Data Section Meetings

A. Planned for 1981
1. First Meeting of the IFRC Subcommittee on A+M Data
for Fusion, IAEA, Vienna, 19-20 January . . . . . . . .
2.

LorenzSpecialists' Meeting on Uranium and Plutonium ResonanceParameter Data for Nuclear Reactor Safety, IAEA,
Vienna, June
. . . . . . . . . . . . . . . . . . . . .

Schmidt

3. Meeting of the A+M Data Centre Network, IA3A, Vienna,
May . . . . . . . . . . . . . .
. . . . . .

Langley

4.

5.

6.

7*

Specialists' Meeting on Nuclear Data for Medical
Radioisotope Production, IAEA, Vienna, April . . . . . .

OkamotoResearch Coordination Meeting on the Intercomparisonof Evaluations of Actinide Neutron Nuclear Data,
Vienna, 17—18 September . . . . . . . . . . . . . . . .

Kocherov/Lemmel

Research Coordination Meeting on the Measurement ofTransactinium Isotope Nuclear Decay Data, Vienna,
17-18 September . . . . . . . . . . . . . . . . . . . .

Lorenz12th Meeting of the International Nuclear Data
Committee, Vienna, 21—25 September . . . . . . . . . . .

Schmidt/Lorenz

8. . Advisory Group Meeting on Nuclear Data for Radiation
Damage and Safety, IAEA, Vienna, October• . • . • Kocherov

B.

9.

Sixth Annual Meeting of the Nuclear Reaction Data Centres,
IAEA, Vienna, October/November . . . . . . . . . . . . .
Lemmel10.

Research Coordination Meeting on A+M Data Evaluation . • Langley/fcat soni s

Planned for 1982
1#

Training Course on Nuclear Physics for Application . . .

Schmidt/Pronyaev

2.

Advisory Group Meeting on Nuclear Data for Biomedical
Applications . . . .

OkamotoMeeting of the Nuclear Structure and Decay Data
Network, Utrecht, May . . . . . . . . . . . . . . . . .

LorenzSpecialist's Meeting on the U—235 fast fission crosssection . . . . . . . . .

Schmidt

3*4*

Appendix B

5. Meeting of the A+M Data Centre Network, IAEA» Vienna. . Head A+M Unit/Katsonis

6. Research Coordination Meeting on the Intercoraparison of
Actinide Neutron Nuclear Data Evaluations . . . . . . . . Kocherov
7. Research Coordination Meeting on the Measurement and
Evaluation of Transactinium Isotope Nuclear Data • • • • Lorenz
8*

Research Coordination Meeting on A+M Data Evaluation

9*

Seventh frnmiai Meeting of the Nuclear Reaction Data
Centres, USSR . . . . . . . . . . . . . . . .

• • Head A+M Unit/Katsonis
Lemmel

10. Second Meeting of the IPRC Subcommittee on A+M Data
for Fusion. . . . . . . . . . . . . . . . . . . . . . . Lorenz

11. Interregional Project Meeting . . . . . . . . . . . . . . Schmidt/koche-rov
C, Foreseen for 1983 (tentative)
1. 13th Meeting of the International Nuclear Data Committee
2. Advisory Group Meeting on Nuclear Data for Fusion
3* Advisory Group Meeting on Basic and Applied Nuclear
Level Densities
4. Meeting of the NRDC Network
5* Meeting of the A+M DGN Network
6.

CEP Meeting: TND Evaluation

7. CRP Meeting: TND Decay Data
8.

CRP Meeting: A+M Evaluation

9. Meeting of IPRC A+M Data Subcommittee
10.

Interregional Project Meeting

Schmidt- 68 -

Appendix C

KACHAPAG Status Report
1. Compilation
The master file of the charged particle reaction data compilation contains atpresent 169 entries with more than 2000 data sets, dmong these, 25 entries
with 150 data sets originated from CAJaD. Moreover, we received 2 further
tapes from CAJaD, one corrected and one new tape from NNDC, and one revised
tape from NUS containing altogether about 600 data sets with integral charged
particle data. These will be implemented during October and November.
KACHAPAG itself added 39 entries with about 500 data sets since the last
meeting, further ca. 150 data sets are under work. Now, all publications withICPND from the years 1977 and 1978, which are contained in the Brookhavenbibliography, have been ineeded - except of course those from the area of
CAJaO.
Two transtapes have been sent out according to schedule, both containing only
new and corrected entries as agreed upon at the last NRDC-meeting.
2. EXFORWe are very glad that during this year the EXFOR situation was even morerelaxed than in the previous period. From the charged particle point of view
we see as a new topic only the problem of error-handling, which should be
discussed here at the meeting.

The second volume of the KARLSRUHE SIGMA COMPILATION KASCO, announced at thelast meeting, became available in November 1979. In the meantime we arepreparing Vols. 3 and 4 with the entries B81 to B110 and Bill to B145, respectively. A total of about 1300 sheets containing about 1750 data sets will beavailable in these 4 volumes. In addition, a new updated version of the registers
will be provided, too. The edition of a volume with A-, C-, D-entries had tobe postponed due to difficulties in getting the necessary program changes
for the FIZ-conversion program in due time. Other changes - e.g. for handlingthe variable product nucleus formalism - are performed at present; thus, wehope to have the new volumes available by the end of 1980.

- 69 -

- 2Appendix C

We have continued the e f f o r t s in designing and preparing the planned "Book ofDiagrams". After having tested several types of presentation we intend at the
moment to combine a limited number of data sets for reactions of the same typein one plot using a semi logarithmic scale for lower p r o j e c t i l e energies Ep, anda double-.logarithmic scale for high Ep. In a f i r s t step predictions fromexcitation function systematics w i l l be excluded. I t is planned, however, todisplay cross sections for similar reactions with a wide variety of target
nuclei versus the difference of p r o j e c t i l e and threshold energy. In this way
at least a f i r s t guess for excitation functions, which are not available, should
become possible.

In the course of testing theoretical models for predicting excitation functions
we found that the results with Blann's code ALICE were not very promising,
especially when comparing d i f f e r e n t reaction types. The v a l i d i t y of one parameter set proved to be restricted to very few reactions. The uncertainty ofcalculated data seems to be not much better than what one expects for the former
heuristic systematics published in Landolt-BSrnstein. At present we are testingaprecompound model from Betak and the more microscopic approach of Groverand Gil at in the code GROGI.
6. Karlsruhe Reaction Data Information File KARDIF

It was found very cumbersome to extract numerical data from the EXFOR file forpreparing plots, handling data requests or performing comparisons with calculated values. Therefore, we have developed a computational format and prepared
the programs for the conversion of KASCO into KARDIF. In this shorthanded
format only that additional information from KASCO is retained, which is necessary
to classify and describe the data given and which is needed to prepare theregisters.
In order to check the completeness of KASGO and to make the book-keeping ofcompilations easier, we plan to include all ICPND containing references
extracted from the available bibliographies.

-70 -Appendix C

10 3

~

io2-

<n
10 1 _

10°

,

•

•

•

•

,

.

.

.

.

.

.

.

.

.

.

.

.

0

PROJECTILE ENERGY( MEV )

2 8 - N I - 6 1 ( P , N ) 2 9 - C U - 6 1 , , S I G , , , EXP
S.TRNRKRU.JIN f 3»4.2«419.72]

28-NI-62(P.N) 29-CU-62,,SIG.,,EXP
S.TRNflKR

U.JIN f 34.2«419.723

28-NI-6U (P,Nl29-CU-64,.SIG,,,EXP
S.TflNflKflo

U.JlN f 34.2419.72)

29-CU-65 ( P , N ) 3 0 - Z N - 6 5 , , S I G , . , E X P
E.GflDlOLI

U.NC/fi.22 f 5U7.7U]

-71 -

.

.

.

.

.

.

.

Appendix C

10 3 ":

I . . , , I , . , , I , , , .

, , , , ! , , , ,

102-

—

10 1 _

10° -

i

0

10

r
20

i

30

PROJECTILE ENERGY

40

r

50

I MEV )

7 9 - f l U - 1 9 7 ( f l , N ) 8 1 - T L - 2 0 0 , , S I G , , , EXP
H*E'KURZ

U.NP/R.168,129,71)

42-M0-92 ( f l , N ) 4 4 - R U - 9 5 , , S I G . . . E X P
HO*P'GRflF

fJ.JIN t 36.36U7.7U]

4 2 - n 0 - 9 i 4 ( f l P N ) U U - R U - 9 7 , , SIG, . , EXP
H*P•GRfiF

U . J I N , 36.3647.743

79-flU-197(flfN)31-TL-2O0,,SIG,,
F.M.LflNZRFRME

U.NP/fi.142.545.70)

-72 -

60

Appendix C~

103

1 , 1 1t i l l

CD

102-

10

1

0

•''''

10

I

20

'

1

j

30

40

PROJECTILE ENERGYl50

I MEV J

39-Y-89fP,N)i40-ZR-89,M+,5IG, , ,G*B'SflHfi

U.PB,HiiJ.962.661

39-Y-89fP,N)i40-ZR-89,M+(SIG,,,EXP
C.BIRflTTflRI
U.NP/R.201,573,73)

-73 -

60

APPENDIX D

Fachinfbrmations
Dr. H. Behrens

W"^

Energie Physik • MathematiK GmbH26.9.8O

FiOnNPORMATICNSZENTRUM ENERGIE PHYSIK MATHEMATIK
Karlsruhe/ Federal Republic of Germany
Status Report
1 • New Data Compilations
The following new issues, which are relevant for nuclear physics* in the series
Physics Data were published in the meantime:
3-4 (1979): Datensammlungen in der Physik/Data Compilations in Physics
H. Behrens and G. Ebel
Supplement to No. 3-1 / 3-2 and 3-3 containing about 42o further
references to tables and compilations.
13-2 (198o): Evaluation of the cross-sections for the reactions
19

F (n,2n) 1 8 F, 31 P (n,p) 3 1 Si, 93 Nb (n,n!) 93mtfo and 1o3 Rh (n/n1)

1o3m

Rh

B. Strohmaier, S. Tagesen and H. Vonach
Institut fur Radiumforschung und Kernphysik der Osterreichischen
Akademie der Wissenschaften
In preparation;
17-1 (198o): Compilation of experimental values of internal conversion coefficientsand ratios fur nuclei with Z^6o.
H.H- Hansen
CEC-JRC/ Central Bureau for Nuclear Measurements, Geel, Belgien
15-3 (198o): Karlsruhe Charged Particle Reaction Data Canpilation
15-4 (1981): Karlsruhe Charged Particle Reaction Data Compilation
H. Munzel, H. Klewe-Nebenius, J. Lange. G. Pfennig, K. Heitberle,
Loosleaf-Collection.
2. Bibliography of Existing Data Conpilations:
As mentioned under 1 a new supplement Physics Data 3-4 (1979) has been issued
to this worldwide survey of all existing physics data conpilations.
3. The Evaluated Nuclear Structure Data File (ENSDF)
In the meantime 6 mass chains have been contributed to the international collaborationby the Fachinformationszentrum Energie Physik Matehmatik. 3 futher mass chainsA = 93, 95, 96 are in preparation.

-75 -Appendix E

NEA DATA BANKACTIVITY REPORT
September 1980

Presented to the 23rd meeting of NEACKP and to the fifth NRDC
meeting, September 1980.

I.

INTRODUCTION

The period since October 1978-has been a critical one in the conversion
work necessary to adapt the working methods taken over from CCDN and CPL to
the new computing environment of the Data Bank. The conversion period cameofficially to an end in November 1979 with the return to the lessors of the
IBM 370/125 computer used by CCDN and retained until reprogrammi ng of
CCDN's tasks were satisfactorily completed.
The twelve months since September 1979, when the full integrated
neutron Data Base was loaded on the PDP 11/70 computer at the Data Bank,
may be considered as a test .period for full operation of the Data Bank.
The 11/70 and its software have in general run very smoothly, so that on
the nuclear data side, where the data base and other program development
work had been concentrated during the conversion, full attention could begiven to data compilation. Very good progress has been made using the
new interactive software and the EXFOR-CINDA data base.
On the computer program side, working methods had been transferredfrom CPL with very little change, and program testing had benefitted fromaccess to the CISI computers, but very little from the specifically databank environment. As planned, development work is now in progress on asecond data base integrating program inventory information, abstracts andcorresponding administrative details. This work is expected to improve thequality and timeliness of abstracts and other information, possible including
SECT data, which can be supplied automatically to customers.
II.

NEUTRON DATA COMPILATION

Scanning and review of the nuclear physics literature shows a steady flowof reports of new measurements. The rate has remained constant at between 200
and 300 new publications per year since 1978. These references, because ofmultiple publication during the course of analysing experimental data, do not
generate such a large number of separate compilations. However, revision ofexisting compilations in the light of reanalysed data presents a comparable
amount of work for Data Bank staff to that involved in preparing a new compilation, and must be carried out in parallel.
The number of new or revised compilations to be transmitted to the otherdata centres, and stored in the Data Bank's EXFOR Data Base, can be estimatedat 250/year. Over the past year, about 245 compilations were made of recent
data, including about 70 revisions. Thus, as far as recent work is concerned,
compilation is running level with the flow of new work.

-77 -

-

2

Appendix E

NEUDADA-EXFOR Conversion
The European and Japanese data to be taken over from NEUDADA into
EXFOR amounted to about 500 works from experiments made before 1970, manyof which provide data which have either not been remeasured or, even if themeasurement has been repeated, are still considered to be of high quality.
Xn addition to compilation of data from new measurements, about halfa man-year, plus some 15 man-months work by consultants, has been devoted
to checking and up-grading into the EXFOR format, the pre-1970 data thatexisted only in the NEUDADA file of the Data Bank. This effort was inresponse to pressure from the other data centres, and in the interest of
having a single and verified collection at the Data Bank itself. All theserecompiled data have been transmitted to the other centres.
New Data Measurements
There is currently a list of 216 identified reports of neutron datameasurements awaiting compilation, of which 63 concern unanswered requests
to authors for numerical data published only in graphs. Only 59 of thereports are from before 1979, and of these 33 are held up because the author
has not released the numerical data, and 15 concern capture gamma spectra, a
topic which has in the past been given low priority relative to neutron
cross sections.
This situation is now close to our objective of compilation of data
within a few months of the data being made available. There exists a"natural" delay between mention of an experiment in an activity report,
and publication of results which may be considered as definitive (andappropriate for compilation). We estimate that this "natural" waiting
list will be of about 150 works. We can confidently expect that thissituation will be achieved by the end of 1980.
Customer Service for Nuclear Data
The number of requests is now running at about 400 per year (plus afurther 10 per cent of requests for documents), double the rate received by
CCDN before the conversion. The increase lies entirely in requests forevaluated data: on 1979 figures these made up two-thirds of the answers torequests for data (246 requests answered with evaluated data, 126 with experimental data). Request statistics have been kept in the present degreeof detail since mid-1978 : as far as can be ascertained, the demand forevaluated data is spread evenly between large and small laboratories, but
the new customers are mostly working in smaller laboratories and are askingfor evaluated data.
The increase is tentatively put down to the much improved publicity
for the files other than EXFOR numerical data available from the Data Bank,and to a greater facility in making selective retrievals by isotope andquantity from the main evaluated data files. While this increase in thenumber of requests is a very positive development, the number of requests
producing very large quantities of data is worrying, especially where thesedata are to be sent out as listings. Every effort is made to check that theuser really does want all the data he has asked for, and in many cases

-78 -

-

3

Appendix E

better specification of the request following a discussion with the user
allows the data output to be reduced to a more manageable volume. The
basic problem is that EXFOR now contains 45,000 data sets ('sub-works'),
and that the more important cross-sections have been the subject of manymeasurements. Possible solutions to this problem have been discussed andthe programme of future work includes study and development of improved,
and perhaps condensed, data presentation.
Continued improvements have been made in the presentation of other data:a special 'computation1 formal for resonance parameters has been developed
to supplement the standard format for point-wise cross-section data, and the
CCDN 'improved' printout format for ENDF/B, UKNDL and KEDAK is now again
available in conjunction with mixed selected retrievals from files in theseformats.
The Data Bank maintains close links with all the major laboratories inWestern Europe and Japan, and has collaborated in the provision of "computational format" data for evaluation purposes. There are currently five centres
where a temporary secondary storage of "computational" format data is used
for evaluation work; JNDG, JAERI; ECN, Netherlands; Bruyere-le-Chatel,
France; CNEN, Italy; and KFK, F.R. Germany.
The ENSDF (Nuclear Structure) file and its corresponding selective
retrieval and print programs have been implemented on the large IBM computerin the CISI Saclay site. Customers linked to the CISI network may retrievethese data on line; other NEA-DB customers are served by.post in the usual
way. Development of this service has not had the highest priority, during
the conversion period, but retireval programs are now working well andadequate new user documentation is available.
III. COMPUTER PROGRAM TESTING AND CUSTOMER SERVICE- During 1979 a total of 117 programs were tested, some of which had
been held over from 1978. In all, 137 programs were received in the courseof the year, 97 of them from the United States. A total of 1,080 requests
were answered, corresponding to 853 program packages sent out (the balanceof requests was for documentation only). There were 1,027 tested programsin the Data Bank's collection at the beginning of 1980, of which 80 werevariations on the original program, modified to run on a different computer.
Current rates of work can best be seen from the 3-month figures for the
first quarter of 1980 : 40 programs received at the Data Bank, and 26 tested.
A total of 239 requests were answered. The major short-term problem is toobtain a better response to requests for programs of origin other than U.S.:
at present we have 101 requests for programs outstanding, and corresponding
to 189 customer requests. Programs are normally received rapidly fromNESC and RSIC, and interesting programs are frequently requested by the
Data Bank in advance of individual requests, so that testing can be started
as soon as a request is received from the NEA service area.
The dispatch of programs to non-OECD countries does .not follow any
clear trend : 129 packages were sent out in 1979, as against 160 and 179
in the two previous years. Current activity suggests that about 130 packages
will be sent out to these IAEA countries in 1980. On the other hand, thenumber of visitors from these countries to the Data Bank is increasing.

-79 -

-

4

Appendix E

Publications, SECU and Program Information
Now that the full rate of testing work has been re-established after themove of CPL personnel from Ispra, it was possible in 1979 to revive SECU
activities : Newsletter No. 23, issued in November 1979, is an update of the
SECU studies on Nuclear Data processing and shielding codes. In the same line,
a seminar on experience with RELAP-IV is being organised at the request of CSNI
(to be held in June 1980). However, the SECU effort cannot be expanded to its
intended level until 1981, when the development programming for the reorganisation of internal working methods in the computer program services has been
completed and the necessary manpower can be assigned to it.
Update information is being issued for all European and Japanese program
abstracts, and a full new edition of the U.S. abstracts will be distributed
during 1980. A major effort has been started to raise the information content
and presentation of the European and Japanese abstracts to a level morenearly equivalent to that of the U.S. publication, and in preparation for a
full reissue of these abstracts in 1981.
In order to promote interest in the United States and Canada for European
and Japanese codes likely to fill a gap in the range of programs of North
American origin publicly available, a presentation seminar was held in May 1980
at the National Energy Software Center, Argonne. Programs presented were WIMS,LAMP-B, SYNTH and FEM-BABEL. The" Data Bank participated in a similar fashionin the presentation of TRIPOLI-II and KIM at the RSIC seminar on Monte-Carlo
methods in April.
IV.

USE OF THE PDP-11/70 COMPUTERThe IBM 370/125 was disconnected for return to the lessor at the end of
October 1979, and since then the PDP-11/70 has carried, the workload, which had
built up during the conversion period, plus the residual workload from the370/125 and the further developments since the end of the conversion. Twofurther video screen terminals have been installed, bringing the total ofuser terminals up to seven. The terminals are intensively used for neutron
data compilation, data base update and search operations (retrievals forcustomers and for internal use), program development and now for direct data
entry (as a substitute for punched cards) and text editing.
Following some hardware and software problems at the end of the conversion period, the months since November 1979 have been remarkable quiet :
difficulties in operation have been restricted to occasional saturation of
the computer provoked by searches for very large quantities of EXFOR data orexcessive use of the line printer, and to some minor problems in tape copying.
Intensive use and some minor accidents have shown the need for self-disciplineon the part of individual users, and carefully controlled work and work routines
in the computer room : the computer is now run as a "closed shop" and work
continues on developing and documenting procedures which are 'safe' against theaccidental loss or corruption of PDP-11/70 files, data bases or applications
programs. Attention is being paid to adequate documentation of the system
and applications programs.

-80 -

-

5

Appendix E

NEA Data Bank Program Information System
The Integrated Data Base Management System DBMS-11 for PDP-11/70
has been used to generate a data base to store all information related
to the program exchange services of the NEA Data Bank. This data basereplaces separate sequential files for the various operations such asadministration, testing and despatch used in the past. It eliminates
practically all redundant data inherent in simple sequential filesystems. Also, by constructing appropriate entry points, most information is immediately accessible for specific queries or updating. Most
applications run interactively, which means that data are entered froma terminal and after short waiting times the results are displayed.
The system has been specifically tailored to the following basic
applications:(1)

Computer Program Abstracts and KWIC Index. The standard abstract
books are directly printed from the Data Base. In addition, selective
searches for full or abbreviated abstract descriptions can be madeaccording to various criteria, e.g. by subject category or by combinations of index keywords.

(2)

A detailed inventory of all program material (including availability
status). This is an extension of the old List of Programs. Some ofthe shortcomings of the old system are now resolved, e.g. modular
systems, may be identified under the general system-name as well as
under the names of the individually-maintained and distributed program
packages.

(3)

Book-keeping of all program requests and movements of program material.

(4)• List of names and addresses of all contact persons involved in theexchange of programs and of related information.
In order to improve the-portability of programs, it is foreseen to
store comments concerning implementation and adaptation to other computer
systems or other observations made during the testing which might be usefulfor the final user. Also information collected in the context of SECU
studies can be stored and again easily retrieved by establishing appropriate
links in the Data Base.
To gain quick access to statistical data, e.g. number of programs
requested by one country or frequency of request for a program, specificentry points have been defined.

-81 -Appendix F
National Nuclear Data Center
Progress Reportto theFifth Nuclear Reaction Data Centers Meeting
Brookhaven National Laboratory
September 29 - October 3. 1980

I. General
Since our last report to the Nuclear Reaction Data Centers Network, NNDC
has assumed responsibility for the compilation of the nuclear structurereference bibliography. In connection with this effort, we have added one
new staff member, Dr. S. Ramavatarum^ who was formerly at the Oak Ridge
Nuclear Data Project.
In the past year we have acquired 12" and 36" Versatec p r i n t e r / p l o t t e r s , anadditional 9-track tape drive, two additional 180-megabyte disc drives andan additional 256 K of memory for our PDP-10 computer, and have added a newwing to house the additional equipment. We have also increased our accesscapability with additional l i n e s and terminals.
Our plotting capability
has been enhanced through the acquisition of the DISPLA software package.
II. WRENDA
The biennial review and updating of the United States Nuclear Data Request
List i s in progress. In an effort to improve the content, requests havebeen sent to evaluators for review.
III.

Bibliographies (CINDA and CPBIB)
The normal CINDA and CPBIB compilation a c t i v i t y has continued.
Threespecial indices were prepared for the Knoxville Conference on Nuclear Cross
Section Technology, the Symposium on Neutron Data from 1 0 - 5 0 MeV and the1980 DOE-NDC Status Reports. ENDL has been indexed for CINDA; the partsof ENDP/B which have been released for general distribution w i l l be indexedin the coming year.
The CINDA library i s now f u l l y operational at NNDC and the data exchangewith NEA-DB has been proceeding smoothly. Eight CINDA transmissions havebeen sent to NEA-DB since January.
The DBMS system for theoperational.

CPBIB

Libraryhas

beencompleted

and

is

now

A dictionary library system has been designed and implemented. Updates tothe dictionaries may be done automatically or i n t e r a c t i v e l y . The system
also includes a package of user codes for lookup and r e t r i e v a l .

-83 -Appendix P

Page 2

IV. Data Libraries
In the period from October 1979 through September 1980, 12 neutron datatransmission tapes (TRANS 1103 - 1114) were 3ent out containing 68 newentriesand numerous corrected
entries.
Threecharged-particle
transmission tapes (C001 - C003) were sent out containing 52 new entries.
An index has been created for the McGowen-Milner charged-particle data f i l e
and retrievals may now be done on that f i l e .
V. Evaluated Data
The dosimetry and fission product f i l e s for EHDF/B-V have been released andan updated set of processing codes has been distributed.
A data base containing "the most wanted" information on nuclides is underdevelopment.
For each nuclide the abundance, h a l f - l i f e , mass, spin andparity, modes of decay, primary radiation and energies, fission yields,
etc* are combined into one data base. Information has been extracted fromthe major f i l e s of evaluated data that so far include BNL-325 (3rd
Edition), Wapstra's mass tables, ENSDF, and ENDF/B-V. Teletype output isprovided and various graphic options are being developed.
A CSEWG subcommittee on charged-particle data has been formed under thechairmanship of L. Stewart. The first meeting of this subcommittee on May
14, 1960 included a dozen representatives from HEDL, LASL, LLL, ORNL and
the NNDC. This subcommittee will be primarily concerned with evaluateddata. General agreement was reached on the need for evaluated data for thefusionreactions,selecteddata
forfission and fusion reactor
applications, specific FMIT needs, mono-energetic neutron sources, and(c*,n) reactions for fission reactor applications. Also discussed werealternative formats and representations for various types of data (e.g«elastic scattering).
The Kale evaluated charged-particle data
converted to an ENDF-like format.

library

has been

received

andVI. Customer Services
The request s t a t i s t i c s for July 1, 1979 to June 30, 1980 are attached.
The computation formats for point-wise data and for resonance parameters
have been implemented and are now in use. A format for fission-productyields has been developed in conjunction with NEA-DB but has not yet been
implemented.
VII. Publications
The Proceedings of the Symposium on Neutron Cross Sections from 1 0 - 5 0 MeV
is due for publication in October.
BNL-325, Vol. I, Part 1 (Z » 1 - 60) is completed and has been sent out forreview.
It is expected to go to the publisher by the end of the year.
Work has begun on Part 2.

-84 -Appendix P

Page 3

The 1980 e d i t i o n o f BNL-NCS-50640 (Charged-Particle Bibliography) has
been published and w i l l be an a r c h i v a l e d i t i o n .
The Minutes o f the Panel on Reference Nuclear Data i s due
i n October.

for

just

publication

V I I I . Future Meetings
Panel on Nuclear Reference Data, BNL, Upton, N.
Nu(bar) Symposium, Washington, D.

Y.

October 27 - 2 8 , 1980.

C . , November 20 - 2 1 , 1980.

Fundamental Constants, N . B . S . , Gaithersburg, Va., June 8 - 1 2 ,

-85 -

1981.

REQUEST STATISTICS
TABLE I
1 JULY 1978 TO 30 JUNE 1980
AREA 1NUMBER OP REQUESTS FOR DATACountry
OriginExperimental
Neutron andCharged Particle
Data

Evaluated
Neutron andCharged Particle
Data

Bibliographic
Neutron andCharged Particle
Information

All

All

Programs

Documents

Total

Total
1/1/786/30/79

107

168

20

24

267

586

1291

Canada

2

5

0

0

11

18

34

Foreign

-

-

-

7

150

157

306

Total

109

173

20

31

428

761

1591

USA

I
H
oo
ON

REQUEST STATISTICS
TABLE II
1 JULY 1979 TO 30 JUNE 1980
AREA 1NUMBER OP REQUESTS FOT DATA

Experimental
Neutron andCharge Particle
Data

Evaluated
Neutron andCharge Particle
Data

Government Labs.(US)

51

62

8

Universities (US)27

33

Industry (US)29

Foreign

Originating
Organization

Total

Bibliographic
Neutron andAll
Charge Particle
Programs
Information

Total
1/1/78All
Documents

Total

8

89

218

568

8

6

83

157

271

73

4

10

95

211

412

2*

5*

0*

7**

161**

175

340

109

173

20

31

428

761

1591

6/30/79*Canada Only**A11 foreign request including Canada

H
I
COREQUEST STATISTICS
TABLE III
1 JULY 1979 TO 30 JUNE 1980
AREA 1NUMBER OF REQUESTS FOR DATA

Evaluated
Neutron andCharged Particle
Data

Bibliographic
Neutron andAll
All
Charged Particle
Information
Programs Documents

Request
Disposition

Experimental
Neutron andCharge Particle
Data

Fulfilled

109

173

20

31

Partially
Fulfilled

000Unfulfilled

00Standing

0

109

Total

oo
oo

Total

Total
1/1/786/30/79

428

761

1591

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

173

20

31

428

761

1591

H

Appendix F

REQUEST STATISTICS

TABLE IV
1 JAN. 1979 TO 31 DEC . 1979
AREA 1
EXPERIMENTAL NEUTRON DATA
INEL.
SCAT.
(INL)

ELAS.
SCAT.

TOTAL
(TOT)

(EL)

OTHER RES.
SCAT. PAR.

GAMMA &NEUTRON
EMISSION(C/S) (RES)(NG)

CHARGEDPARTICLE
EMISSION.
(NX> OTHERSTOTALREQUEST
i

1-H
2-He
3-Li

i
i

!

n i

n

73

0

0

6

5

0

25,
8

«5

0

0 1

0

4

6

5

§

21

27

0

1

0

5

'

!

j

4-Be

5-B
6-C
7-N
8-0
9-F

0 *

0
t

0
7
0
1

'

14

12
4

3
0

J

I

34
27

0
'
0 '•

20
22

o

i

13

0

>

5

0

1

15
14

o

9
o

« 0
; o

9
14

7

1

n

TO

2

0

o

o

0

0
0

! o
• 0
1

2
23

i o

31

1

15

24

o

o ; 0
Q
0
9. ' 0
0
o
p
n
n
0

28
10
27

14
5

0

u

21

4

p
n

o

0

"

0

1
0

o

13-Al

0
1

0

0
0
0

14-Si

2

0

0

15-P

0

0

Q

16-S

1

0

9

17-C1

0

0

18^Ar
19-K

0
0
0

o

o

0

0

20-Ca

1

o _..,•21-Sc

n

0

0
n

22-Ti

1

1

23-V

0

24-Cr

l

25-Mn

12-Mg

0

t

1 n

11 -Na

ini

4
0

0 5
0 ''
:

11
i

;

o
0
o

10-Ne

•n

•n

•

0

3

]

.

o i

4

0

0

Q

28
47
! 41
44
i
15
,39
55
1A

10

n

Q

•u

15

0

- ~ 47--

n
41

fi
37

o

., 19 .

0

0

0

2
1

o
0

0

0

22

11

0
0

p

26

0

0
0

40

0

0
0

24

6

26-Fe

5

3

3

168 ..

0

0

55
24

65

0

1
0

32

27-Co

4
1

8

.0—-

33 _

28-Ni

2

4

2

0

0

..52.

•53

. .0 „,

-39 -

0

34

, ..0 ...
30
0_

n. - 111...-

Appendix P

1979 (cont.)
GAMMA &NEUTRONOTHER RES.
SCAT. PAR.
EMISSION
(RES)
(NG)
(C/S)

ELEMENT

TOTAL
(TOT)

ELAS.
SCAT.
(EL)

INEL.
SCAT.
(INL)

29-Cu

1

0

0

30-Zn

0

0

0
3

31-Ga

0

0

32-Ge

1

0
2

33-As

n

34-Se

CHARGEDPARTICLE
EMISSION
(NX)

TOTAL
OTHERS REQUEST

48
42

31
19

0

80

0

0
0

0

64

5

0
1

0
0

18
30

6
11

0
0

24
50

n

1

n

0

9

5

£

IS

0

0

7

0

0

5

0

61
22

36-Kr

2
1

2

0
0

3

13
8

7
4

2
0
0
0

104

0

30
0
0
0

43
17
52
23
30
18

0 !

0

0
0

11

35-Br

0
0

q

64

37-Rb
38-Sr

0
0

0
0

32
41
22

39-Y

0
0

0

4
0

40-Zr

0

0

2

0

0

37

25

Al-Nb
42-Mo

0
0

0

1

0

0

13

8

0

0

0

0

A3-Tc

0

0

0

0

0

49
12

15
5

0

44-Ru

0
0

0
0

0
2

0
0

0
0

37

12

p

14

13

0

49
29

0

0

47-Ag

0
3

3 !

4

0
10

0
0

33
49

16
15

0
1

49
85

48-Cd

n

n

7

0

19

53

22

o

49-In

0

0 }

3

0

0

7

50-Sn

0
0

0
0

13
0

ft 1 70

35
72
30
47

45-Rh
46-Pd

51-Sb

0 1

0

i

2
12

0

o'

0

0

0

53-1

0
0

0-

0
0

0
0

0

0 )
0 '

0

0
0

0 ,

56-Ba

0
0

0

57-La

o[

0
6

0
4 !<

13

0

o '•

0

0

22 \
40 =

55-Cs

o;

58-Ce

3

0 '
3

59-Pr

o i

0

60-Nd

0 !

0

8
0
1

2 i
0 !
0

0

- 90 -

0

23

52-Te
54-Xe

22

22
37
16
50

5

I

6

I

8

4
|

46 i

4
12

!

4

'.

9

64
17

101
0
45
0
178
0
32
0
59
0 '. 27
o:
43
j
24
o
0;
62

o'<

17

a,

84

n
n

?f,

Appendix P

1979 (cont.)
GAMMA & CHARGED
OTHER RES.
NEUTRON PARTICLE
SCAT. PAR. EMISSIONEMISSIONFISSION
TOTAL(C/S) (RES)
(NG)
(NX)
(NT) OTHER REQUEST

TOTAL
(TOT)

ELAS.
SCAT.
(EL)

INEL.
SCAT.
(INL)

61-Pm

0

0

0

0

Ji

20

n

p

n

62-Sm

0

0

0

0

54

8

•n

n

63-Eu

• o
o

0

o

0

n

1Q

n

n

64-Gd

0

0

0

0

0

35

6

0

0

41

65-Tb

0

0

0

0

0

8

3

0

0

li

66-Dy

0

o

o

0

Q

V*

7

n

n

0

0

0

0

0

7

2

0

0

g

68-Er

0

0

2

0

oj

35

9

0

0

46

69-Tm

0

0

0

0

0

11

0

0

0

11

70-Yb

0

0

1

0

1

35

4

0

0

41

71-Lu

0

0

2

0

0

16

2

0

0

20

72-Hf

0

0

2

0

0

21

3

0

0

26

73-Ta

2

0

2

0

0

37

2

0

0

43

74-W

0

0

5

0

0

38

13

0

0

56

75-Re

0

0

Q

o

9 ,

19

4

0

0

23

76-Os

0

0

1

0

0

33

8

0

0

42

77-lr

0

o

o

. 0

1?

0

1

. ,.Q-,..
0

1*

1

1
1

o

78-Pt

25

8

0

0

36

79-Au

2

0

1

0

0

28

5

0

0

36

80-Hg

0

0

1

0

0

32

12

0

0

45

81-Te

0

0

4

0

- 0

17

7

0

0

28

82-Pb

5

3

8

0

0

8

14

0

83-Bi

2

1

1

1

6

is

7

n 1

n
7 j

86-Rn

0

0

0

0

0

2

0

n

„

88-Ra

0

0

0

0

-Q...

J_-

0—

U_

89-Ac

0

0

0

0

...,fl..,

, 0.

a— _

2

o

Q

o

TO

7

0—

97

0

6

ELEMENT

67-Ho

,

90-Th

0 ._

-

91-Pa

0

0

0

n 0

92-U-000

0

0

0

0

_._0 ..-?

92-U-230

0

0

0

0

0

0

92-U-231

0

0

0

0

0

0

92-U-232

o

o

o

0

nrap

92-U-233

3

1

0

1

0

|

i

6

__

- . . fl •

. n

0 .

-

6~

0 -

-0-

n

n

n

Q

n

n

. -XL- .

0—

n

n

n

•}

0

4

1

16

1
-91

9

-

Appendix F

1979 Ccont.)

ELEMENT

TOTAL
(TOT)

ELAS. INEL. OTHER
SCAT. SCAT. SCAT.
(EL) (INL) (C/S)

GAMMA & CHARGED
RES. NEUTRON PARTICLE
PAR. EMISSION EMISSIONFISSIONTOTAL(RES) (NG)
(NX)
(NF) OTHERSREQUEST

0

0

0

0

0

2

0

1

1

2

0

n

i

92-U-236

2
0

0

0

0

0

4

0

1

0

5

92-U-237

0

0

0

0

0

0

0

7

2

0

0

2

0

22

3

7
14

0

92-U-238

1

44

92-U-oxi

0
1

0

0

0

0

0

0

0

0 "

0

0

0

0
0

1
J-

0

1
2

3

92-U-234
92-U-235o1n92-U-239
93-Np
94-Pu-OOO

0

0

0

0

0

13

0

6

0

19

0

0

0

0

0

0

0

0

0

0

94-Pu-238

0

0

0

0

0

4

0

1

0

5

94-Pu-239
94-Pu-240
94-Pu-241

2

0

0

0

0

5

4

13

o

24

0

0

0

0

0

10

0

2,

0

T>

0

6

p

12

}

p

in

n

1

n

1

0

0

0

0

0

0

6

94-Pu-242

0

0

0

0

0

9

94-Pu-243

n

0

0

n

0

4

94-Pu-244

0

0

0

0

0

2

0

94-Pu-245

o

o

o

n

•7

ft

95-Am

0

0

0

0

0

27

0

A

0

96-Ca

0

0

o

o

9

q

0

o

97-Bk

o

o

o
o

Q

2

P -

f)

98-Cf

0

0

n

n

n

1 .

n

99-Es

0

0

0

0

n
0

4

0

p

Q

100-Fm

0

0

0

0

0

*—iL—

0

TOTAL

67

31

112

41

186

2436

889

*

0

2
q
?

0
2..9JQ2

APPENDIX G

Draft Objectives of the Proposed NEACRP/NEANDC Working Group Meeting on
European Evaluation Procedures(Nov.1980)
1.

Participation in the meeting will include a few European representativesof NEACIIP and NliANDC, with also a representative from the NEA Data
Bank management committee.
NEACRP
Campbell (U.K.)
Bouchard (France)
Kusters (F.R.G.)

2.

NEANDC
J.L. Rowlands
E. Lynn/M. Sowerby
E. FortB. Goel/Froehner

NEA-DB Management
Patrick (Chairman, U.K.)

The prinicpal objective of the meeting is to investigate possibilities
for greater uniformity and standardization among the western European
neutron data evaluation work. This may cover:a.

discussion of a common evaluated data format—there may be a role
for the Data Bank in preparing and converting data into such aformat,b.

some agreement on common procedures in data evaluation; representation,and quotation of uncertainties, common standards, etc.,c.

setting up a mechanism (working group, etc.) for the coordination
and review of new evaluations,d.

establishment of a European Data File.

- 93 -

Appendix H

APPLICATION OF A DBMS AT NEA DATA BANKPROBLEMS AND EXPERIENCE WITH A LARGE DATA BASE ON A SMALL COMPUTER
N. Tubbs, D. Johnson, L. Pellcgrl.no, W. Schuler
OECD Nuclear Energy Agency, Data Sank, B.P. 9, 9119O GIF-sur-YVETTE, France

PAST ITHE BACKGROUND TO THE DATA BASE PROJECT

Data Base Management Systems (DBMS) are a development which would appear to be of interest to DataBanlcs of any Kind, but have been surprisingly slow to catch on with scientific users. Their full
acceptance seams inevitable in the long term, as one aspect of the general trend towards freeing user
programs and data from direct dependence on the users' hardware and operating system characteristics.
Meanwhile, there are several papers at this conference from DBMS developers, but only about four byusers of DBMS packages. It is interesting to ask why.
This paper tells of the NEA Data Bank's experience of DBMS use in the context'of a change in computer
manufacturer with the consequent need to rewrite all its data handling software.

The OECD Nuclear Energy Agency Data BankThe Data Bank was founded in 1978, when it assumed the functions of two previous NEA information
centres: the Neutron Data Compilation Centre (CCDN), housed in the present Data Bank building at Saday,
and the Computer Program Library then located at Ispra, in Italy.
Sixteen European countries and Japan finance the Data Bank, while the United States and Canada contribute to a conaon pool of technological information through similar centres, as do the USSR and other
IAEA member countries; Its 198O complement is 14 professional and 13 supporting staff- It has accessto the very large computer park at CEN Saclay, used for all heavy compute jobs, and its own POP 11/70
satellite computer which provides remote access to the Saclay computers and carries the data base,computer program files and interactive terminal traffic .needed for the Data Bank's operations.
Neutron and other nuclear data at the Data Bank: Neutron and other nuclear data, with bibliographic
information about work in this field, are essential elements underlying the design, operation and control of nuclear installations. Their compilation and exchange with other centres provide access toa worldwide data resource from which needs may be satisfied by a single request to the Data Bank. The
integrated data base discussed in this paper contains numerical data CEXFOR') and linked literaturereferences CCINDA 1 ) for some 3O,0CO experiments in neutron physics. From these data are prepared theevaluated data files which are used throughout the world as the basis for nuclear reactor calculations.
Fig. 1 shows the formal OODASYL "schema" (logical structure diagram) of the data base.

The Choice of Hardware and Software for Data Storage
It was evident that the IBM 37O/12S computer previously used by CCDN had to be changed in 1978 withthe formation of the Data Bank, when the workload of the in-house computer was expected to double.
rhe CCDN's data handling software was written in PL/1, but after some 5 - 1 0 years use was showing
many signs of old age and excessive patching. A -move away from IBM would deprive us of PL/1: none of
the CCDN staff wished to take the step backward to FORTRAN, and the best available small-computer
compromise appeared to be the use of COBOL for data handling with a DBMS. Most of the programs in adata centre bear a much stronger relationship to business programming (manipulation of text and figureswith very little actual calculation) than they do to the scientific calculations for which FORTRAN may
still be considered appropriate.
A DEC POP 11/7O computer was chosen for its relatively high throughput and disc I/O capacity and thewell-proven timesharing capabilities of the-11 series computers and their operating systems. BothTOTAL and the manufacturers' DBMS-11 CODASYL data base management packages could-be implemented on the
11/70, while TOTAL and IDMS were available for the outgoing 37O/125. Choosing either TOTAL or a
CODASYL package would allow development work to be started on the existing computer, and data baseprograms transferred with few changes to the 11/70 when it was Installed. DBMS-11 was chosen as more

-95 -Appendix H
directly able to represent the complex relationships between the neutron cross section data and thephysical, bibliographic and administrative data elements describing and identifying the data tables.

Advance Reasons for deciding on DBMS Use
In order to reduce programming effort in transferring the CCDN data handling operations to the new
Data Bank computer environment it seemed best to use a DBMS package for all the generalised data handling functions underlying our content-dependent applications programs. This would live time at the
beginning of development work and transfer responsibility for maintenance of all these functions tothe software vendor : the price seemed very reasonable in relation to the cost of writing similar software ourselves, and afterwards maintaining it.
Even with batch updating, it was felt that frequent updating of direct access disc files required good
update logging procedures, with effective recovery for damaged files. This facility is offered onlywith DBMS and some advanced file management systems, and is not easy to program oneself where on-line
updating is to be permitted. DBMS packages offer many further conveniences, such as separation fromthe programs of file record format descriptions, and a representation of logical relationships between
data which has much more intuitive appeal than comparisons between serial files as a means of identifying these relationships.

The OECD/NEA Study on Generalised Data Management Systems and Scientific Information
In parallel with planning work on computer use in the Data Bank, an international specialist study was
carried out to evaluate experience of the use of DBMS with scientific data. The study report was
published by NBA in 197B. The study group identified criteria under which DBMS use should be considered: the NEA Data Bank project satisfied all of these. One such indicator was the intention to set
up a second and subsequent data bases : our plans to set up other data bases in cooperation with otherdivisions of NEA made this an important point.

PART II

EXPERIENCE CM THE DATA BASE PROJECT

Planning and Preliminary Work
The savings to be made by transferring the work of two data centres to NBA Data Bank and rationalising
the pattern of computer use justified generous provision for specialist consultants to help during theplanning of the data base and the initial running-inaperiod of the 11/70. The different consultants
provided no miracle solutions, but some essential ideas as to how to resolve difficulties and above
an extra informed voice in all major discussions.
Reenalysis jot existing handling operations for neutron data had started in 1976 and yielded «.relatively complicated IDMS logical schema (OECD/NEA study, p. 244). In parallel, performance benchmarks
comparing the IBM 370/125 with IDMS and the PDP 11/7O with DBMS-11 were run on sections of the proposed schema in order to estimate the feasibility of mounting a data base of some 150 million characters on such small computers. It was established that in a 3000 record "hoes, rakes and shovels"
data base (used for IDMS installation testing) basic loading operations ran about ten times faster on
the POP 11/70 than on the IBM 37O/125.
Loading time was expected to be the limiting factor, and test batches of several thousand records were
loaded on to appropriate sections of a partial schema (see fig. 1 for the full current DBMS-11 schema],yielding estimates which remained surprisingly constant over three years and two different computers :
1976
1978
1979

ISM 370/125
PDP 11/70
PDP 11/70

24 hrs CINDA+
24 hrs CINDA+
final load time

3O hrs EXFOR
6O hrs EXFOR
90 hrs overall

The irony of this is that we had also measured loading rates ten times faster forrthe PDP than for the
IBM machine. Evidently the earlier estimate was.a poor one : it is dangerous to extrapolate peformance estimates from a simple small data base to a larger complex one. Where performance is critical,
estimations should be based on the full schema and data samples as large as possible.

Constructing the Full Data Base
About eighteen months-were available to finalise the schema, write the data base loading, update andretrieval programs, revalidate and load the data. Directly involved in data base programming as.xrom
April 197S were the systems programmer and three programmers, with a project coordinator part-timeand a consultant data base specialist for six months.
Refining the "schema":
It soon became clear that the data base schema in the form originally plannedin 1976 could not possibly be programmed in the time available, and the spring of 1978 was devoted toreanalysing the schema. Much time was spent in group discussions with the physicists, in an effort
to redefine requirements so as to allow it to be simplified to its present form (fig.._l) .

-96 -Appendix H

Fig. 1: CODASYL Schema for CINDA Bibliography and EXFOR Numerical Data Tables

The logical content of the schema was in fact reduced by about 30% (sets and record types). It scvery important that the schema, which affects all users, should be agreed on collectively, sincemajor modifications to any explicitly structured data base (as compared to relational data bases) will
impose corresponding reprogramming and probably a full reload. In this case the major simplifications
were proposed by the physicist users.
The representation of logical structure: The network structures of a CQDASYL DBMS appear to the users
am a rather natural way of depicting the interlocking and overlapping logical hierarchies which characterise NEA-DB data files. The major compromise in logical structure' to be seen in fig. 1 is the artificial split of EXFOR numerical data at the two hierarchical levels of 'work' and 'subwork' into several record types : X4W0RX, COMBIB. COMDAT and X4SUBW, SUBDAT, SUBBIB and TABDAT. Data at each of theselevels could logically have been entered in a single record type with a very wide variation in record
lengths. A general peculiarity of CODASVL DBMS is that many-to-many correspondences can only be expressed by creating 'junction records' with as many occurrences as there are logical links in the correspondence. SAQSUB and ISOQNT are examples. ISOQNT exists solely for this purpose (see fig. 1).
Ease of programming: The Data Manipulation language, embedded in COBOL "programs, represents a realincrease in convenience as compared to normal file handling. All our programming experience so far
had been in PL/1 and FORTRAN, but use of COBOL, seen Initially as a serious step backwards, was foundto be acceptable for this type of work despite its verbosity. The biggest disadvantage of COBOL for
the NBA application was its lack of a floating point data type corresponding to the FORTRAN E-format
in which numerical data is compiled. Structured programming conventions can be followed more naturally
in COBOL than in FORTRAN. Interactive working from terminals on the POP 11/70 speeded programming work
considerably as compared to batch working on the 37O/12S.
Debugging: The "DBQ" interpreter for DML proved very useful for odd jobs in the loading phase of the
NEA data base on the 11/7O, and even more valuable for debugging the update and retrieval programs.
Its potential for 'patching' a degraded data base seems clear: whether this is good practice inregular operation is of course another question. In this connection there is an important difference
between program development using ordinary files, and work on an integrated data base. An ordinary
file containing bad data can simply be overwritten when it is no longer wanted; bad records must be
selectively deleted from the data base unless the whole 'area' is to be reinitialised.
Moreover, all logical relationships between different sections of the data base are expressed bypointers, and it is easy to forget that an 'area' logically linked to another cannot be independently
reinitialised without leaving broken pointer chains in the second area. Another programmer working inthat area may not realise that anything has changed until he finds execution errors he cannot explain.
Just such an error cost several weeks' work before it was explained.
Preparation of data for loading: Any transfer of data from one program system to another will show up
formal and logical errors in the data. A data base in which data is exposed to several different"logical views" is likely to show up a greater number of errors. Moreover, in a CODASYL data base Che
links between data items normally expressed implicitly by shared redundant data in a file-based systemare expressed explicitly by data base pointers corresponding to set linkages. This implicit information must be extracted from the input files used to build the data base, completed by hand, and rewritten in a form convenient for extracting the structural information needed by the data base loading
programs.

- 97 -

Appendix H

All the C2NDA and EXFOR validation programs wars rewritten (CINDA validation as part of the data base
update programs. EXFOR data validation as an 8 man-month external project). Apart from this, cleaningand preparing the data for loading absorbed half the overall effort assigned to the data base project.
Adequate time must be allowed to repeat the "final" data base load in case errors are found in either
the data or the data base.
System software errors; Apart from Irritating minor errors, the software used on the POP 11/70 (CBMS11 and a COBOL compiler) showed two major faults :- errors in handling variable length records large enough to overflow the data basepage'

- frequent system breakdown when DBMS-11 updates ware run in parallel with other work.
These were resolved by the manufacturers, but cost perhaps three man-months' work at a critical time.
The danger with frequent system software errors is that they may blind users to their own mistakes:
this happened in the case discussed above. A year after the final data base load, breakdowns have become very rare, and overall system performance is good.
Update logging: The "journalling" (transaction logging) procedures provided by DBMS-11 are not in factused on update. This was partly due to mistrust of automatic system procedures following the systemerrors discussed above, but more directly because they make heavy demands on machine facilities, andslow down the otherwise very efficient batch update process. This particular data base can be more
quickly reconstructed from the usual father or grandfather disc dumps plus later update batches.

PART IIIPERSONAL REACTIONS TO THE DBMS

Programmers at the Data Bank have very ouch appreciated the high level approach to data handling provided by the two CODASYL systems we have used (and of course by other DBMS). The performance of ourlarge nuclear physics data base (140 Mbytes of information spread over 2SO Mb of disc space) on the
TOP 11/70 is very adequate provided that data requests are selective and limited to reasonable quantities (say, less than 100,000 data points).
The DBMS has saved a fair amount of programming time, but does not relieve the programmers or thephysicists of any of their responsibility for systems analysis. Introducing a CODASYL DBMS, with an
overall schema to be defined before programming work can start, forces an analysis of all the activities to be covered by the data base, and of their interrelations; previously the major files wereconsidered in isolation, and linked only later on an ad hoc basis.
The basic conventions of CODASYL data structuring are easily grasped by any scientist, so that allusers can join In discussion of the programming objectives and the schema itself without experience ofdata base programming. He have found more resistance among programmers than users to detailed discussion of this or- later projects: many programmers -prefer to work alone, but this is dangerous in mostapplications projects, and particularly so for a data base.
Staff changes are relatively frequent, and in such a complex project it is essential that all programs
are clear and well documented. We have been only partially successful in enforcing structured programming conventions and full documentation. Plans to develop a high degree of collective responsibility
by having all programmers work on overlapping sections of the data base foundered on lack of time,
partly due to systems software troubles during the development period. Likewise, regular planningmeetings were held and a rolling work schedule maintained during the eighteen-month development period:
nobody enjoys such regimentation and it is hard in a scientific environment to maintain it when theimmediate need for it has gone.

PART XVCONCLUSIONS

So many changes were made in setting up the Data Bank that it is impossible to say whether the single
change of introducing a DBMS would have increased programming efficiency. What we can say is that thedata base project has proved successful in the new environment, and that overall throughput of compiled neutron data has ouch increased and is of better quality.

- 98 -

APPENDIX I.

Actions arisingfrom the11th INDC Meeting(Vienna, 16 - 20 June l?80)

ActionSession

PersonIII.B.

J.J. Schmidt

Policy recommendations made byspecialist technical meetings
should be sent to INDC participants for comments before IAEA
takes action on them

IV.C.

J.J.Schmidt

Prepare evaluation of after-effectand impact of 1980 Trieste courseand distribute to INDC participants

V.A.

J.J. Schmidt

Include in the introduction of thenext V7RENDA edition a note indicating that the accuracies appearing
in the list correspond to 1~C error
except where noted otherwise

4

V.A.

All members

Ensure that national WRENDA requests
are properly reviewed

5

V.A.

J.J. Schmidt

Distribute Standards & Discrepancies
Subcommittees reports to requesters

6

V.A.

S. Yiftah

Include summaries of two CRP June
1980 meetings in INDC proceedings

VIII .A,All Subcommittees
Chairmen

Provide final Subcommittee Reports
for official minutes within 30 daysof 11-th INDC meeting

VIII.B,

A. Smith

Approach Macklin to ensure that heofficially informs appropriate peopleor publishes his renonnalised Th-232
capture dataNo

- 99 -

- 2 -

VIII.B.

Frohner

Include * specific references about:factor-of-two discrepancy for
Am-241 fission resonance integral

10

VIII.B.

J.J. Schmidt

Clarify whether requests in WRENDA
79/80 for Np-237 (n,2n) are fortotal (n,2n), for part leading toHp-276m or for part leading to Pu-236(see INDC(UK)-33/G, p . 43)

11

VIII.C.

members

Inform WRENDA contributors;standard
accuracy requirements should bestated with l-o* error. State explicitly if otherwise

12

VTII.C.

All members

Inform WRENDA contributors;state
explicitly in comments section if
average value of cross section in a
typical spectrusi is required

13

VIII.C.

All members

Inform WRENDA contributors;state
explicitly energy resolution requirements or covariance assumptions,
if any14

VIII.C.

J.J. Schmidt

Review, in consultation with Safeguards
experts, requirements and uses ofnuclear data in analysis of safeguards
measurements and issue report

15

VIII.C.

All participantsComment and up-date list of sources
suitable for radiation damage measurements given in INDC/P(80)-14

16

VIII.C.

All participants

Propose to NDS appropriate topics andspeakers for meetings for nuclear
data requirements for radiation damage
predictions and selected safety-related
topics17

VIII.C.

All participants

Encourage sensitivity studies needed
to assess nucleardata requirements for
topics of previous action- 100 -

- 3 -

18

VIII.C.

J.J. Schmidt

Ensure that adopted actinide evaluations arising from TKD evaluations
CRP are complete, include uncertainty estimates and are of attested
quality

19

VIII.C,

J.J. Schmidt

Ensure that choice of data items .forstudy within CRP on Actinide Decay
Data relates to well Defined justified
and documented needs. Recommended
values should include uncertainties
and be supported by appropriate documentation

20

VIII.C.

J.J. Schmidt

Ensure that evaluation documentationand intercomparisons are available
well in advance of CRP Meetings

21

VIII.C,

J.JJ. Schmidt

Continue important work of the two
TND CRP's on Evaluations and Decay
Data and inform INDC members on
developments

22

VIII.D

J.J. Schmidt

Ensure that members of subcommittee
B are informed about the outcome of
INTOR workshops as far as they are
relevant to nuclear data and material
choice23

VIII.D,

J.J. Schmidt

Put evaluated file formats for double
differential data on the agenda of
the next NRDC meeting

24

VIII.E.

J.J. Schmidt

Inform INDC members outcome of Interregional Project Implementation discus-1
sions

25

VIII.E,

A. Smith

Dispatch new version of Report on NDS
program for comments members of subcommittee, chairmanfscientific secretary and executive secretary

26

X.A.

S. Yiftah

Dispatch corrected version of
Actions for comments of INDC
participants

27

X.C,

J.J. Schmidt

Inform INDC members final date ofnext INDC meeting as soon as possible- 101 -

Appendix J
NNDC CHARGED-PARTICLE "BARN" BOOK

1.0

OBJECTIVE

The current objective of the planned Charged-Particle "Barn" Book is toprovide in a convenient graphical format the integral data of interest to thefusion and biomedical communities. The data to be included would be excitation
functions for the light-ion neutron source reactions, other reactions ofinterest to fusion, and other reactions of interest to the biomedical field.

2.0

LIMITS

Since the Karlsruhe Charged Particle Data Group has plans to produce agraphical publication of integral charged-par t i d e nuclear data for targets with
A approximately equal to 20 and greater, the NNDC publication would, in general,be limited to targets with A less than 20, with the possible exception of someselected reactions of interest to the above communities. The NNDC publication
would probably be limited to incident particles between protons and alphas(except for exotic fuels of interest to the fusion community), to only thereactions of interest to the two communities, and to energy ranges from about
20MeV for neutron-source reactions to about 200 MeV for alpha-induced reactionsof interest to the biomedical field.

3.0

SOURCES OF DATA

3.1

Experimental Data

The primary source of experimental data will be from EXFOR. Through theactivities of KACHAPAG, CAJAD, and the NNDC, a significant portion of the data
relevant to biomedical applications has already been entered into EXFOR.
Additional work is required to complete the files for the biomedical data.
CAJAD, NDS, and the NNDC have also been compiling neutron-source reaction data.
The file is almost complete for the T+D reaction.
Other data files such as the McGowan data and the data compiled by Howerton
in the ECSIL format will be scanned and appropriate data sets converted to the
EXFOR format.

3.2

Evaluated Data

Whereever possible, existing evaluations will be used. Two primary sourcesof these data are G. Hale (Los Alamos), in an ENDF-like format, and R.
Howerton (Lawrence Livermore Laboratory), in the ENDL format. It is anticipatedthat the newly-formed CSEWG Charged Particle Subcommittee will provide guidance
and assistance in collating these files and suggesting an appropriate common- 103 -

NNDC CHARGED-PARTICLE "BARN" BOOK

Appendix J

Page 2

format(probably either ENDF/B or ENDF/C).
In the cases where no evaluations exist or where the evaluations are veryold (e.g. the Cummings1 evaluation from 1963 for positron emitters), some
limited evaluations may be necessary. In the cases where the data sets are
fairly complete over the energy range of interest, this may be done by the
IGUIDE portion of the BNL325 plotting package, requiring little effort by anevaluator. Other cases would require more effort such as using systematics andthe limited data available to produce a "recommended" curve. The NNDC does notplan any full-scale evaluations such as are performed to produce ENDF/B.

4.0

TOOLS

The primary tools for the production of the Charged-Particle "Barn" Book
already exist. These include the CSISRS and ENDF retrieval programs and the
publication package for BNL325. Some additional work on the BNL325 package isrequired to correctly handle the reaction formalism. However, this work will bedone for the second volume of BNL325, so that by the time we are ready to
produce the Charged-Particle "Barn" Book all tools will be ready. Sample plots
from the current version of the publication package are attached.

- 104 -

Appendix J- 105 -

Appendix J

T(d,n)4He a(E)Exper±aental data compiled by NNDC
Evaluated curve from G. Hale (Los Alamos, 1979)

2.

12

C(p,x) U C
Experimental data compiled by KACHAPAG and NNDC
Evaluated curve from Cummings (Brookhaven, 1963)- 106 -

Appesndiz J

rr'^-T i—nr

M I I I — r• I . I

r

i

8

c

a

I C « C «C 3OG hC - C « •• < * » C • (JO • w * S * C <

i

i

2

a

a

aa a

ts*
«^-

I

,

i

•

i .

o

- 107

,

I

APPENDIX K

CINDA Coding

It is desirable for Cinda coding to be consistent anduniform from center to center. With this in mind, our center
would like to have several vague areas of concern clarified:

1)

Reviews:

When a review reference is compiled, should the coded lab
reflect the origin of the reviewer or the origin of the work
being reviewed?
Should works in progress, or work being planned, be includedin Cinda?
What should be the blocking policy for these situations?
At the present time, we have not coded planned works. We
have blocked entries with the original work (previously coded in
C i n d a ) , only when the review covers a single laboratory.
For
reviews of works that include several labs, the review entry
stands alone'*Cinda with the reviewer's lab code.
2)(d,p) and(d,pf) Reactions:

The Cinda manual states that for (d,p) and^ (d,pf) reactions,useful information can be deduced about the equivalent NG and NF
reactions;entries should be made with an appropriate note in
the comment field.
If authors do not explicitly refer to ..this equivalence ofreactions, should the article be coded?
Currently, only explicit
references to the neutron reaction or fission yields have been
compiled.
3) If several parts of an experiment are complete at different
laboratories, we have compiled an entry for each lab.
Shouldthis practice be continued?
4) Is the current list of abbreviations for the comment
adequate?

field5) We would like to include in Cinda, entries for EXFOR linesthat will be transmitted in the near future. Does this present
any difficulties for other centers?

Gail Wyant- 109 -

APPENDIX LPROGRESS REPORT OP CJD
V.N.Manokhin
1. Since 1979 CJD transmitted TRANS 4036-4039 with 40
works. 15 works are prepared for putting on magnetic tapes,
30 works are in process of compiling. The total number ofworks published by July 1980 and suitable for compiling into
EXPOR is 560. 480 works from the number above mentioned has
been entered the EXPOR library. Gonvertion of the most important 4-area works from NEUDADA format into EXPOR format has
been begun recently. Now the works with data on the radiative
capture cross sections of reactor structural materials arein process of converting.
2. At the present time the new computer EC-1033 with
29 Mb magnetic disk units is in process of installation. The
computer will be put into operation by the end of this year.
In this connection in 1981 we expect a lot of work on implementation of the service data libraries and data processing
programmes, data calculation programmes using theoreticalmodels and so on. At the time being the data exchange and thework with data libraries is carried out by CJD using theother computers.
3. CJD has completed the work on development of the evaluated data library of the threshold (n,p),(n,*O,(n,2n) reactions
for all stable isotopes in the incident neutron energy range
from the threshold up to 20 MeV. The data of this library are_n process of checking and testing on the basis of integral
experiments.
4. Since the last NRDC meet-ng the issues of "Nuclear Constants" No. 35,36,37 have been published. During the period
mentioned CJD answered about 130 requests on nuclear data.

- 111 -

L81-21480
Translated from Russian

Appendix M

THE ACTIVITIES OF CAJaD
N.V. Tiraofeeva, G.M. Zhuravleva and F.E. Chukreev(Brief report for the Conference of Nuclear Reaction
Data Centres at Brookhaven, USA,
held in September-October 1980)

This report covers the period from October 1979 to August 1980.
1.

Over this time CAJaD (Centre for Data on the Structure of the Atomic

Nucleus and Nuclear Reactions) prepared the transfer of tapes A003 andA004 with numerical material from 30 articles.
2.

During the compilation we have run into a number of difficulties due,in our opinion, to a certain lack of logic in describing a nuclear action
by means of Generalized EXFOR.

We strive, during compilation, for a

description of the research results that is as unambiguous as possible
and easily recognizable so that the users can find the data they requirein the EXFOR library with a minimum of information noise.

The impor-tance of this aspect of the compiler's activities was pointed out at thelast Conference in Karlsruhe.
It should be noted that for describing the formation of the groundand isomer states (T, > 1 sec) we have an adequate method based on the useof the symbols -G and -Mn.

But what do we have to describe reactions

involving formation of a nucleus in a certain excited state?

Nothingbut a formalism using the PAR code, suitable for all processes except theformation of a radioactive nucleus in the final state.
Let us consider, for example, Ref. [l], which deals with theformation of millisecond isomers.

It is only the formation ofthat can be described by the formalism now adopted.

In

For the formationof the remaining six isomers it is not possible to have an adequate
description.

The possibility of an adequate description in the case ofIn

seems to have arisen by pure chance.
And it comes about through109
the fact that
In has, apart from the millisecond isomer, another isomer
T, = 1.3 min.

- 113 -

- 2-

Let us look at another example - Ref. [2] - in which the authors
94
94
studied the formation of
protons.

Nb in excited states when irradiated byZr

The results of the work are useful for those who wish to take

into account the effect of a zirconium backing on a neutron spectrum
from the reaction, for instance, P+T or P+Li.

Furthermore, by applying

the data from this work we can arrive at the lower limit of formation
94
forNb, which is not without interest, since Ref. [3] does not give
any information at all on this reaction.
One could give many such examples.

We could, of course, describe

all these cases using the PAR code.

But would it then be possible tofind the reactions in the library?

In MEMO CP-A/22 we suggest a modifi-

cation of the existing formalism.

The modification can be rejected or

accepted, but if we keep only PAR, users of the data will not appreciate
it since they will have considerable difficulty in finding the data theyneed in our libraries.
3.

Column 25 of Glossary No. 27 shows the letter A [4], which indicatesthat the given nuclide has isomers with T, ^have all nuclei except the lightest.

1 sec.

But these isomers

If the letter A is to have any

sense at all, we must indicate the lower, as well as the upper, half-life
limit.
4.

Over the period of the report CAJaD responded to roughly 70 requests

for nuclear reaction data.
REFERENCES[l]

GONCHAROV, K.S., et al., Abstracts from the Thirtieth Conference on
Nuclear Spectroscopy and Structure of the Atomic Nucleus, Nauka
Press, Leningrad (1980) 394.

[2]

FEDORETS, I.D., et al., Izv. Akad. Nauk SSSR, Ser. Fiz. 41, 8 (1977)
1665.

[3]

MUNZEL, H., et al., Physik Daten No. 15 - Index, Karlsruhe (1979).

[4]"EXFOR Manual" (1980) 7.

- 114 -

APPENDIX N

THE CDPHE STATTXfBEPOBT*B.S*Ishkhanov, I.M*Xapitonov, V.V.Surgut anov, V*V*Varlamov
I s accordance with, the plans outlined in Memo CP - M/1,
the Centre f o r Fhotonuclear Experiments Data at the I n s t i t u t eof Nuclear Physics of Moscow S t a t e University i s carrying out
work along the following l i n e s :1* CDPhe prepares, publishes} and d i s t r i b u t e s y e a r l y I n formatiom b u l l e t i n s "Fhotonuclear Data" containing Information
about the experimental s t u d i e s of photonuclear r e a c t i o n s t i n e l a s t i c electron s c a t t e r i n g and r a d i a t i v e capture which havebeen published during a year in s c i e n t i f i c journals i n t h e USSR
ahd abroad* The published information cover t h e atomic n u c l e ie x c i t a t i o n energy region between t h e nucleonic and mesonic t h r e s h o l d s . To d a t e , b u l l e t i n s 1 , 2 and 3 have bees published flPhotonuclear Data - 1977» - 1 9 7 8 , -1979 ) and b u l l e t i n 4 i s in prepa
ration* CDPbfi has received numerous requests from foreign andsoviet scientists and organisations for the bulletins to be sent
to them, which we endeavour to satisfy as soon as possible*
2* CDPhE compiles, in the exchange format "Generalised
EETCE", digital data from soviet works on photonuclear reactions, which are published in soviet and foreign journals* By now
CDPhe has prepared and, via CAJaD, distributed the exchange tape
M001, which contains over 6000 information points from 6 published works, with data from additional more than 20 works in
preparation* In spite of the fact that the Centre has met with- 115 -

certain difficulties in providing checks by authors of the data
recorded in the Centre in format EXFQR, this activity will be
carried on and expanded*
In exchange for information in format EXFOE from the worksof soviet authors, the Centre hopes to receive similar information from works of foreign scientists*

3« CDPhE is developing special software for a unified - series computer ( EC 3BH) , which will make possible a

speedy and complete processing of nuclear data in format EZFOB,
So far, CDPhE has received and satisfied 37 requests fromorganisations and individual scientists for photonuclear data
and data on nuclear structure and on reactions with charged
particles*- 116 -