International Atomic Energy Agency

I N

DC

INTERNATIONAL

IKDC(NDS)-90
D i s t r . G + Sp.

NUCLEAR DATACOMMITTEEREPORT ON THE
SECOND CONSULTANTS, MEETINGOP
NCTCLEAR REACTION DATA CENTERS
K i e v , USSR,11 - 16 A p r i l 1977oa>%Including the
THIRTEENTH POUR-CENTER MEETING
and the
THIRD MEETING ON CHARGED PARTICLE NUCLEAR DATA COMPILATION

EditedH.D. Lemmel
October 1977

IAEA NUCLEAR DATA SECTION, KARNTNER RING 11. A-1010 VIENNAReproduced by the IAEA in Austria
November 1977
77-9574

Internationa! Atomic Energy Agency

INDC(NDS)-90

Distr. G + Sp.

I N

DC

INTERNATIONAL

NUCLEARDATA

COMMITTEEREPORT ON THE

SECOND CONSULTANTS * MEETINGOP

NUCLEAR REACTION DATA CENTERS
Kiev, USSR,11 - 16 A p r i l 1977

Including the
THIRTEENTH FOUR-CENTER MEETING
and t h e
THIRD MEETING ON CHARGED PARTICLE NUCLEAR DATA COMPILATION

Edited*yH.D, Lemmel
October. 197.7.

IAEA NUCLEAR DATA SECTION, KARNTNER RING 11, A-1O1O VIENNATABLE OF CONTENTS
Page
Foreword . . . . . .

........

5...........

7

Agenda . . . . . . . . < , . * . . . . . . . . . . . . . .

11

The c o o p e r a t i n g d a t a c e n t e r s . . . . . . . . . . . . . .

15

Minutes17

List of Participants .

„ . . . . . . . . . . . . . . . . . . . . . . .

Part I : Neutron nuclear data . . . . . . . . . . . .

17Part II: All Nuclear reaction data . . < > . . . . . .

29

Conclusions, NND . , . . . . . » . . . , . . . . . . • .

43

Exfor Conclusions.... „<>.... . . . . < > . . . •47

Recommendations. . . a . . . . . • « . . . * . . . . •53

Resolution . . . . . O o . o o « a . . . . . . . . o * .

55Continuing Actions . . o » . . . . . . . . . . o « . . .

57

Actions . . o . . . . . . . . . . . . . . o * . . . . .

59

MND
CPKD

..

• .*.
.o/»r

59
•••»

Appendices * . » • < > . a . * . . » . . . . . • • • • . .

65
69(see next page For a list of Appendices)
List of Abbreviationso. .......

175

APPENDICES

1.

2e

3.

4.

The CJD Progress Report71

w i t h Annexesa.
b.

Content of TRANS 4028
L i s t of works being processed

73
75

c.

Recent HMD e v a l u a t i o n s

79

CCDN Progress Report81

w i t h Annex

87a.

Choice of Cut-Off Date f o r Cinda

Progress Report of NNDC (USD)97

with Annex

101

a.

Statistics

Brief NDS Report (NMD)111

with Annex

117

a.

Requests Received at NDS for ENDF/B

5.

Status Report of CAJaP

119

60

KftCHAPAG Opening Statement

127

7o

ZAED Status Reportwith Annexes a* Recent and planned publications
b . Retrieval of integral CPHD from IHIS

129
131
133

8.

Status Report of Japanese Study Group

135

with Annex

138

a.

block diagram of organization

9.

NNDC Progress Report (CFND)

141

10.

Brief Report by HDS (CPND)

143

11.

Statement by A. Maroinkowski, IBJ

145

with Annex

147

12.

13o

a.

Tabular Data for 56PE(P,G),sample

Status Report of the US Photonuclear Data Center

149

with Annexes

151
161

a.
b.

The d i g i t a l data f i l e s
Digital data input format

Council Directive of CEC including the directive tocease using the unit of the "barn"165

with Annexes

171

a.

Extract from "Lβ Syst^me I n t e r nationale ..•»» (1977)

b. Extract from Minutes of KEANDC
c. Resolution by CSEWG
d. Recommendation by INDC

172
173
174

FOREWORD

The Second Consultants' Meeting of Nuclear Reaction Data Centers
was held "by the IAEA at Kiev, USSR, in the week of 11-16 April 1977.
This Second "NRDC Meeting" combined the 13th "Pour Centers Meeting"(Consultants' Meeting of the Pour Neutron
Nuclear Data Centers) withthe third "CPND Meeting" (Consultants , Meeting on Charged Particle
Nuclear Data Compilation)o I t was a successor to the preceding meetings
under these names held in Vienna, 26-27 April 1976, and reported in
INDC(NDS)-77 and INDC(NDS)-78 respectively.
Since the EXFOR System i s used for the exchange of neutron dataand charged p a r t i c l e data, i t appeared appropriate to hold the consulta n t s ' meetings of the respective data centers jointly and to report onthem in the present joint document. The agenda included also,a session
on photonuclear reaction data.
In Part I of the Meeting, the neutron data centers held a special
session on neutron data matters, in particular on the jointly operated
neutron data index CINDA, whereas all items of more general i n t e r e s t ,in particular the data exchange system EXPOR, were treated in Part IIof the Meeting.

7
2nd Consultants' Meeting of Nuclear Reaction Data Center (2nd NRDC Meeting)Kiev, USSR, 11-16 April 1977
Part I: 13th Meeting of the Four Neutron Nuclear Data Centers
Monday 11 April, Tuesday 12 April, Saturday 16 April
List of Participants
CJD(USSR Centr po Jadernym Dannym)
V. Manokhin
V. Bychkov
N. Pashinko

NNDC(Opening of Meeting)(US National Nuclear Data Center)
S. Pearlstein
C. Dunford

CCDN(NBA Neutron Data Compilation Centre)
H. Derrien
A. Schofield

NDS(IAEA Nuclear Data Section)
J.J. Schmidt
H.D. Lemmel(Chairman)(Scientific Secretary)

List of Observers
Y. AbeN. Bakunjaev
Ju.I. Grigor'jan
D. Hermsdorf
H. Ikegami
Ju.G, KLimov
V.T. Kulik

Japan, Kyoto University
USSR, State Committee, Moskva
USSR, Kurchatov Inst., Moskva
German Demo Rep., Dresden University
Japan, Osaka University
USSR, State Committee, Moskva
USSR, Director, Information Centre of theInstitute of Materials, Kiev
A. Marcinkowski
Poland, Inst. Badan Jadrowych
L. Pintiliescu
Romania, Inst, de Pisica Atomica
L.L. SokolovskLj
USSR, Kurchatov Inst., Moskva
A.P. Trofimenko
USSR, Ukro Ak. Nauk, Kiev (Local Secretary)
L.N. Usachev
USSR, Fiziko-En. Inst., Obninsk
G. Vasiliti*
Romania, Inst, da Fisica Atomic
V.F. Vertebnyj
USSR, Inst. Jad. Issl. Ukr, Ak. Nauk, Kiev
Miss G.M. Zhuravleva USSR, Kurchatov Inst., Moskva

8
2nd Consultants' Meeting of Nuclear Reaction Data Center f2nd NRDC Meeting)Kiev, USSR, 11-16 April 1977
Part I I ; Meeting of a l l Nuclear Reaction Data Centers
Wednesday 13 April to Saturday 16 April
List of Participants and Observers
Kachapag (Karlsruhe Charged P a r t i c l e Group, Germany Ped. Rep,)
H. Mttnzel
CAJaD (Centr po Atomn. i Jadern. Dannym, Kurchatov I n s t . , Moskva, USSR)
F.E. Chukreev
L.L. Sokolovskij
G.M. Zhuravleva
Ju. Iβ Grigor , jan(Opening of Meeting)Japanese Study Group for information processing in nuclear physics, Japan
H. Tanaka
H. Ikegami
Y. A"beHokkaido University
Osaka University
Kyoto University

CJD (Centr po Jadernym Dannym, FEI Obninsk, USSR)
V. Manokhin
V. Bychkov
N. Pashinko
NNDC (National Nuclear Data Center, BNL, USA)
S. Pearlstein
C. Dunford
CCDN (NEA Neutron Data Compilation Centre, Saclay, Prance)
H. Derrien
A. Schofield
NDS (IAEA Nuclear Data Section, Vienna,
J . J . Schmidt(Chairman)

H.D. Lemmel(Scientific

Austria)

Secretary)

LUaP (Leningradskij I n s t . Jad. Pi z<,, USSR)
I.A. Kondurov
Photonuclear Data Group at Fiziko.Energet. I n s t . Obninsk, USSR)
A.I. Abramov
ZAED (Zentralstelle fttr Atomkernenergie-Dokumentation, Karlsruhe, Germany Ped.Rep.)
H. Behrens

Universit'at Dresden, German Dem. Rep,
D. Seeliger
Dβ Herrnsdorf
I n s t . Badan Jadrowych, Warszawa, Swierk, Poland
A. Marcinkowski
I n s t , de Pisica Atomica, Bukuresti, Romania
G. Vasiliu
L. Pintiliescu
Piziko-Energeticheskij I n s t . Ot>ninsk, USSR
L.N. Usachev
Information Center of the I n s t i t u t e of Materials, Kiev, USSR
V.T. Ealik
I n s t . Jad.- I s s l . Ak. Nauk Ukr. SSR, Kiev, USSR
V.P. Vertebnyj
A.P. Trofimenko (Local Secretary)
USSR State Commitee on Peaceful Uses of Atomic Energy, Moskva, USSR
Ju. Ge KLimov
N. Bakunjaev

11
2nd Consultants' Meeting of Nuclear Reaction Data Centers ("2nd NRDC Meeting")
Kiev, USSR, 11-16 April 1977
Part I1 13th Meeting of the Four Neutron Nuclear Data Centers

AGENDA

Monday 11 April, Tuesday 12 April, Saturday 16 April
1. Opening, election of Chairman, adoption of agenda
2. Brief status reports of the Centers (on neutron data only)a. Presentation of status reportsl>, Trends in NND activities
c. Review of actions from last meeting
3.

Cinda
a. Improvements, "blocking, data index lines
ID. Cinda manual and dictionaries
c. Publication schedule, archival issue and choice of
deadline 4C-2/83 + 84
d. Cinda s t a t i s t i c s , 4C-2/85
e. Cinda coverage control system, 4C-2/76, 4C-3/189* 4C-2/8O
fo Ref-type codes, 4C-1/116
g, Cinda programming, e.g. duplication checks
x. Miscellaneous (Lab assignment see below under 6.e)

4.

Wrenda5.

Evaluated data

5A. Exchange of experimental neutron data, experiences with
TRANS tapes
a. Memos 4C-1/111, 4C-3/2O1, 4C-3/204 and many earlier onesb. Clean-up of 50000 to 80000 series, 4C-1/IO8
x. Miscellaneous
6.

Exfor: i f related to neutron data only
a. (cancelled)b. Revision of Protocol, 4C-1/104
c. Completeness:transmission of resonance-parameters
d. Scope: fission product yields, capture gamma datae. Lab assignment, 4C-I/H6 and correspondence
f. Derived Resonance Integrals, 4C-1/1O5
x. Miscellaneous

7.

Implementation of Generalized Exfor System for NND
40-1/84, 40-3/180, 4C-3/19O

8. Miscellaneous
9. Conclusions

12Part H :All Nuclear Reaction Data

Wednesday, 13 April to Saturday 16 April
10.

Opening, election of Chairman, adoption of agenda

11.

Brief status reports of the Centers

12. Exfor Manuala. Memo CP-D/13 (CPUD Supplement with additions)b. Revision of Sections VII and VIII, CP-D/20 and CP-D/23
c. Coding under the Keyword MONITOR CP-D/26, also
CP-C/8 and CP-D/21
d. 5-char lab. codes? CP-D/19, CP-B/8
e. Secondary energies CP-D/24
f. Product Nucleus in case of fission and spallation
CP-D/25, CP-C/8
g. Coding under Keyword STATUS CP-D/21
h. New Keyword ASSUMED CP-D/21
i . Monitor-information under DECAY-DATA? CP-C/8, CP-D/21
CP-B/8j . Use of pointers CP-B/6
k. Names of REACTION subfields
1. Coding under HEL-HEF
m. Emission Cross-Sections
m. Relative Cross-Sections from Natural Targets CP-B/8
o. Dictionary changes for Lab and Reference Codes
p. Isomeric ratios e t c . , CP-D/22, CP-C/11
x. Miscellaneous items
13.

Photonuclear Data, 4C-4/25

14.

Cooperation
a. Distribution of Memos, Dictionaris, Tapest>. Experiences with TRANS tapes
TRANS A000 and Memo CP-A/1, CP-D/14, CP-B/f
TRANS B002, Memos CP-C/10, CP-D/16, TRANS B003
TRANS E001 and Memo CP-E/5
Exfor V1001 (Vienna t e s t entry, not yet distributed)c. Computer programs
15. CPND Bibliography
a. Recent References (tape from CAJaD)
b . Bibliography for integral CPND, CP-C/7
16. Nuclear Data Tagging and l a g g i n g in INIS
17.

Customer Servicesa. Activities and plans of the centersb . Special problems of countries starting to havenuclear data files for specific applications

13

18. Future developments: compilation requirements,
relevant recommendations from othermeetings,
developments in data centers, etc,
18A. Data Center Activities in Data Base Management System
19. "The loss of the "barn,,
20.

Conclusions

21.

Date and place of next MDC Meeting

15
THE COOPERATING DATA CENTERS
Note t h a t t h i s summary i s n e c e s s a r i l y b r i e f and incomplete.
f u r t h e r d e t a i l s see i n t h e Minutes of t h i s document.

For

For explanation of a b b r e v i a t i o n s s e e t h e L i s t of P a r t i c i p a n t s on pages
7-9, and t h e L i s t of Abbreviations a t t h e end of t h i s document.

Neutron Nuclear Data a r e compiled and disseminated by t h e following four
centers in a geographical distribution of labour as specified:
NNDC, Brookhaven:

USA and Canada ( = area 1)

CCDN, Saclay:

OECD countries in West-Europe and Japan ( = area 2)

NDS, Vienna:

Non-OECD countries except USSR ( = area 3)

CJD, Obninsk:

USSR ( = area 4)

Each center maintains the Exfor Master File of i t s area, and holds copiesof the Master Files of the other three areas for r e t r i e v a l s and distribution
within i t s area.
The bibliographic data index CINDA i s operated by the same four centers,
the Master File i s maintained at CCDN, the book i s printed by IAEA.
Integral Charged Particle Nuclear Data
KACHAPAG Karlsruhe compiles a l l integral CPND for which i t also maintains
the Exfor Master F i l e .
CAJaD compiles integral CPND from USSR and sends them to KACHAPAG.
NNDC compiles large data sets from USA and Canada and sends them to KACHAPAG.
Copies of the KACHAPAG F i l e are held at NNDC, CCDN, NDS, CAJaD and ZAED
for distribution to customers.
The bibliographic data index i s compiled, maintained and printed by NNDC.

Differential CPND
CAJaD intends to compile in Exfor differential CPND from USSR.
The Japanese Study Group intends to compile in Exfor CPND from Japan andselected differential CPND.
Dro MarcinkowskL ' s group at IBJ intends to compile in Exfor selecteddifferential CPND.
Dro Agrawal in India compiles selected CPND.
NNDC, CCDN, NDS, CAJaD and ZAED will act as distribution centers.
Photonuclear Reaction Data
The Photonuclear Data Group at Obninsk intends to compile in Exfor photonuclear data from USSR.

16

MDC i s the point of contact for formal international exchange ofphotortuclear data in Exfor format. Existing informal arrangments
between the Photonuclear Data Center (MBS) and other groups continue
in p a r a l l e l .
NMDC, GCOT, MDS, the Photonuclear Data Group Obninsk, and ZAED act as
distribution centers.

17

Minutes1.

Minutes
HMD

Opening

The 13 Meeting of the Pour Neutron Nuclear Data Centers was opened
by Mr* Manokhin who welcomed the participants on behalf of the Centrpo Jadernym Dannym,
Mr. Vertebnyj welcomed the participants on behalf of the Ukrainian
Academy of Sciences and the National Committee for the Relations with
the IAEA.
Mr 0 Usachev, Chairman of the USSR Nuclear Data Committee, presented
opening remarks on behalf of the USSR State Committee on the PeacefulUses of Atomic Energy.
Mr. Manokhin introduced the participants.
Mr. Schmidt was elected as Chairman.
The Tentative Agenda was adopted with some minor modifications, see page 11..
The numbering of items was kept as in the Tentative Agenda, although thesequence of discussions deviated occasionally.
2.a Brief status reports of the Centres (on neutron data only)
Mr. Manokhin presented the report of CJD, see Appendix 1.
Mr. Derrien presented the report of CCDN, see Appendix 2. Concerning
the forthcoming amalgamation of CCDN and CPL, participants stressed thatduring the transition period, when the CCDN computer programs were converted, the smooth and steady operations of Cinda and Exfor programs should
be guaranteed.
It is estimated that the conversion of CCDN service programs to Data BaseManagement System will take about three man-years.
CCDN intends to make the Crouch Library of experimental fission productyield data available in a convenient format. This was welcomed and NDS
was asked to report subsequently on the use of this Library. (Action 1)(Note by editor: Compare Memo 4C-2/89)*
The Cinda file is still growing at a constant rate showing no indicationof a decrease in neutron data activities.
Mr. Pearlstein reported that the name of the previous US National Neutron
Cross-Section Center was changed with effect from 1 Jan. 1977 *c> US
National Nuclear Data Center (NNDC). See Action 2. He presented the
NNDC progress report as given in Appendix 3«
It was announced that a new Chart of Nuclides by General Electric would
be available towards the end of 1977»

18
Minutes
NHD
Mr. Lemmel presented the brief report on NDS activities as given in
Appendix 4» The data request and dissemination statistics of HDS were
presently not available and should be provided later (see Action 3)»
Mr. Hermsdorf from the Dresden University reported that his group has
own programs for handling Exfor data and evaluated data, and that thesewould contribute to stimulating the use of such data by the industry.
There is no decision yet whether experimental data will be coded in
Exfor format.
Mr. Marcinkowski reported that his group at the Instytut Badan Jadrowych
is doing an evaluation of europium data. The europium data in Exfor are
incomplete, since seven experimental data sets mentioned in E N D F / B - 4
seem to be missing, including data by Vertebnyj. A compilation andevaluation of Hx-58 (n,2n) has been finished. Mr. Marcinkowski is asked
to send his Exfor compilation of europium data to HDS, see action 4«
All NHD centers are asked to send europium data to Mr. Marcinkowski,
see action 5»
Mr. VasiliUt Romania, reported that data evaluations are being done.
The Exfor format is in use and computer programs have been written.
Exfor seems to be too incomplete for old data, whereas new data seemto be much better represented.
2.b Trends in HND activities
The question was raised to estimate the trends in HMD data center activities.
Mr. Manokhin said that at CJD, during the last 3 - 4 years, there is aconstant level of about 50 Exfor entries compiled per year and about
120 data requests received per year. CJD has a staff of 35 including
10 computer staff.
Mr. Derrien said that at CCDN there is a constant level of Exfor compilation and of requests received. CCDN has a staff of 16.
Mr. Dunford and Mr. Pearlstein reported that in the US there is certainly
no decrease in HMD activities. The compilation work-load continues atabout constant level. Whereas some HND producing facilities were closed
down, others increased their data output. Requests are balanced between
experimental and evaluated data, depending much on whether for the data-types
requested recent evaluations are being available or not.
Mr. Schmidt reported that the compilation workload at HDS is about constant, but that the number of data requests received increased strongly
during the last two years.

19
Minutes
NND
2.c Review of Actions from last Meeting
The actions from the 1976 Four-Centers Meeting have mostly teen fulfilled. Those actions which are of a continuing nature, are listed
on page
Mr. Usachev pointed out that there are HJDC actions on the Pour Centers,
who are asked to provide the data reviewers of the INDC subcommittees
with up-to-date relevant data retrievals. Mr. Salnikov, who reviews
the californium fissionnieutron spectrum, would prefer to "be provided
regularly with new data on this topic.
It was felt that NDS should try to improve the communication between
INDC and the Pour NND Centers, see Actions 6-8. The data reviewersof INDC and NEANDC should submit their standing data requests to theappropriate NND center, see Action 9«

20
Minutes
CINDA
3.

Cinda

3.a Improvements, "blocking, data index lines
The discussions started on the basis of Memo 4C-2/77 of 3 Nbv 1976
which summarizes the items which need improvement in Cinda.
The main item is to complete and improve the blocking of all Cinda
entries referring to the same experiment, and to add the Exfor dataindex lines. The Pour Centers agreed on a Cinda Improvement Program(see Conclusion l) and a number of detailed actions (see Actions
10 - 22), which need not be repeated here.
Some additional items are:
The main items of information to be entered in the comment-fieldof data-index lines, ares the number of data-pointsf to define thequantity given in greater detail than indicated by the Cinda
quantity} and if space allows, any other relevant information suchas the data source, etc.
3.b Cinda Manual and Dictionaries
Mr. Derrien announced that the new Cinda Manual will be issued ina few weeks, and he invites the other centers to submit their commentson it (Action 23). Update pages will be transmitted by CCDN in thesame way as HNDC does for the Exfor Manual (Action 24). A Section on
Exfor data index lines in Cinda is still to be added (see Action 10).
It is agreed that Cinda and Exfor dictionaries of institute and reference codes are the same. In order to make it possible that both
systems can be linked to the same Dictionary-System, the Dictionaryof Cinda quantities will be added to the system (Action 26), and the ref—type codes should be unified (Action 27, compare Memo 4C-l/ll6).
NDS should provide external Cinda indexers regularly with up-to-datelab and ref code Dictionaries (Action 25) and send 20 copies to CCDK
every three months.
3»c Cinda publication schedule
Concerning the future publication schedule of Cinda it is decided thata fourth and a fifth cumulative supplement to CIMDA 76/77 should be
issued in 1978 and that an archival issue is envisaged to be publishedin spring 1979• The Cinda Improvement Program should be scheduled suchas to meet the spring-1979 deadline. See Conclusion 2 and Actions 28-30«
It is recognized that the publication of the Cinda book is essentiallyfinanced by the bulk orders of CCDN and NMDC, Therefore, decisions on
the publication of Cinda should much be left to these two centers.
Mr, Usachev proposes to consider CINDA 76/77 as archival issue, respectively to issue CIHDA 79 in a similar way as CINDA 76/77,

21
Minutes
CIHDA
3.d Cinda statistics
In Memo 4C-2/85 CCDN had distributed statistics extracted from theCinda file. This effort was much appreciated and CCDN was encouraged
to continue similar statistics (Action 31)«
The interpretation of such Cinda statistics should however "be treatedwith caution and wrong conclusions could be drawn by someone notfamiliar with details of the Cinda system. The statistics were madebefore the last Cinda update for the spring 1977 publication. The
practice of multiple publication of the same work seems to decrease.
3.e Cinda coverage control
Mr. Schofield reported on the progress in the development of the CCDN
Cinda coverage control system, which was appreciated. Actions 32-34
were agreed for the purpose of starting to feed information into the
Cinda coverage file.
The Agenda item 3.f on Ref-Type codes was covered already above,
under 3.b.
Cinda programming
It was realized that several items of the Cinda Improvement Program
depend on revisions and additions to CCDN computer programs for checking
the Cinda input and the Cinda file. Due to the limited manpower available at CCDN, priorities for such programming must be recognized. For
items to be programmed with priority see Actions 35 and 36.
It was found desirable that,in the Cinda book,no block should havemore than one data tag. In principle this could be programmed at CCDN
as well as at NDS. The action was given to NDS (Action 37); only ifsuch a program change were not possible, NDS should consult back with
CCDN.
3.x Miscellaneous Cinda matters
A number of Cinda rules were discussed. The agreements reached are summarized as Conclusions 3-6» Recommendations 1+2, Actions 38-42.
Mr. Pearlstein recommended to include in proceedings of nuclear data
conferences and in progress-reports Cinda-type indexes.
Mr. Lemmel supported this recommendation but pointed out that most ofthese conferences and progress-reports contain many nuclear data otherthan neutron data, and that therefore the Cinda quantities are notadequate for this purpose. One should think of a wider scope of quantity
codes for this purpose, for example similar to the Exfor REACTION
quantities.

22
Minutes
WREKDAMr. Dunford stressed again the idea of adopting uniform philosophies
in Cinda and Exfor, in particular with the definition of an experimental "block in Cinda and with the lab assignments in Cinda and Exfor,
These views were agreed, see Conclusions 7 sxid 8»
The manpower needed for Cinda is estimated at
CJD
CCDN
KDCC
HDS

1 1/2 physicists2(including external Cinda compilers
corresponding to 1/2 if work weredone at CCDW)
1 1/4
0.8

total

5»55

physicists

WrendaMr. Schmidt reported that Wrenda is now published every other year.
WRENDA 76, which is the last publication, contained revisions to therequests of a number of countries.
Mr. Usachev suggested that HDS should extract and update the status andaccuracy comments made by the reviewers.
Mr. Schmidt replied that this has been done, and that the comments toa large number of requests have been updated. The next publication isdue in spring 1978**r* Pearlstein reported that entries to the US Request List have justbeen collected. The collection of such entries will start in the US
always in the fall of even years. Thus, the US Request List and Wrenda
are out of phase. In the US it would be difficult to change theschedule.
NDS and INDC should try to find a solution to bring the cycles of the
US Request List and of Wrenda into agreement (Action 43)»
Mr. Usaohev explained that the USSR considers to define request
priorities, giving high priority to microscopic data which are in
disagreement with integral experiments. The USSR requests for fast
breeders will be kept in Wrenda.

23
Minutes

Evaluated Data

HN3)

Mr. Manokhin reported about the status of the Sokrator Library (see Appendix 1). In future, CJD will send new Sokrator data to the three othercenters directly (Action 44); meanwhile NDS should check that all earlier
evaluations, in particular the tape containing He-3, have "been forwarded
to the other centers (Action 45), The evaluation on U-238(n,y) will "beincluded in Sokrator, and also the evaluation on Au-197(n,y) above 1 keV
by TolstikoVo
Mr o Hermsdorf reported that his group finished an evaluation on niobium.
This was initially published in the proceedings of the 1975 Kiev Conference,and the data have been submitted to CJD for inclusion in Sokrator.
They are working on an evaluation of irono For this purpose they would
need the iron data of ENDF/B for which they could send back the results of
their analysis as feedback information.
Mr. Lemmel asked about possible release of further ENDF/B data and points
out that the evaluation activities at Dresden and Bucharest could provide
useful feedback information. Mr e Pearlstein replied that a first comparison
between ENDF/B and Sokrator data could usefully be made by comparing calculated parameters such as breeding ratios.
Mr. Manokhin pointed out, on a question by Mr. Pearlstein, that the use of
the Sokrator Library includes calculating group constants for fast reactors.
Mr. Derrien reported that the Neutron Nuclear Data Evaluation Newsletter(NNDEN) will be issued twice a year from now on.
Mr. Pearlstein reported that ENDF/B-5 will be issued in 1978. The documentation is distributed as ENDF-2O1. Integral experiments are not includedin the documentation although they are used for checking,,
Mr. Schmidt pointed out that for the NDS program on actinide nuclear data
the release of ENDF/B data for actinides would be most useful.

5A.

Exchange of experimental neutron data

5A.a Experiences with TRANS tapes
Mr o Dunford said that more emphasis should be given to the correct codingof data involving metastable states and half-lives.
Mr. Lemmel pointed out that the 4C-Memos that had been exchanged about
errors in Exfor entries, were a very useful tool for improving the qualityof compilation.
Mr. Pearlstein added that any criticism included in such memos should be
expressed in a nice tone.
Mr. Derrien added that the efficiency of such memos could sometimes be
improved by expressing a view in a more precise way. So far CCDN had not
yet implemented the option of retransmitting corrected entries.
It was found desirable that CCDN continues to transmit Exfor exchange statistics to the. other centers (Action 46).

24
Minutes
NND

Mr, Manokhin reported that CJD had, during the past year, some computerdifficulties which have teen overcome meanwhile. He asked the other centers
to continue to send data on 7-track tapes starting with a dummy f i l e of atleast 100 records. Later during the year, he would request the other centers
to s t a r t to transmit 9-track tapes with effect from a date to "be announced(Actions 47,48).
5A.b Clean-up of 50 000 - 80 000 seriesSome years ago, NNCSC had converted the Scisrs Library into the 50 000 80 000 series of Exfor entries,,
Mr, Dunford expressed that i t would be desirable i f a l l these data could be
reviewed soon and corrected (Conclusion 9)o NNDC i s correcting the 50 000
series , checking the data, but not bringing a l l the BIB information up-todate. Entries will get entry numbers starting with 11 000o
Mr. Lemmel reported that NDS had communicated in 4C-Memos l i s t s of 70 000
entries that could be deleted because they had been retransmitted as regular
30 000 entrieso I t was agreed that NDS should retransmit the shortened
70 000 f i l e containing a l l entries which are s t i l l valid (Action 49).
5A.X Miscellaneous
Mr. Dunford said that i t would be desirable to transmit, always together
with a TRANS tape, a l i s t of entries being in progress but not yet finished.
NNDC had been doing so, but not the other centers.
Mr. Lemmel explained, that at NDS, when sending out a TRANS tape, always a l lavailable entries are sent. NNDC had always a number of entiles waiting for
author approval; t h i s i s not the case at NDS where entries are transmitted
even before author approval, so that a corresponding l i s t of entries waiting
for author approval would be zero.
See Conclusion 10

6.b.

Revision of the "Protocol"

The revised Protocol as submitted by NNDC in Memo 4C-1/104 W&B
p(Conclusion 11). I t should however be borne i n mind that the scope of theProtocol i s to be widened. As a f i r s t step.CCDN was asked to propose a
new Protocol section on the Cinda cooperation (Action 50)»
6.c Exfor completenessMr. Manokhin presented a table of completeness figures for USSR entries:
glus_in_jgrogress
1955 - 76
1965 - 76
1970 - 76

55 %
65 %
65 %

62 £
75 $
75 %

Mr. Derrien reported that Exfor entries in area 2 are believed to becomplete i f one disregards unusual data-types and borderline cases.

25
MinutesM)
Mr. Dunford reported that since the "beginning of Exfor 653 entries havebeen compiled of which 602 or 92$ have been completed and transmitted,,
21 are ready for transmission, 30 are in progress.
Mr. Lemmel reported that Exfor entries in area 3 are believed to becomplete, at least for the last years. For earlier years certain gaps,
in particular for data from India, are known. This backlog i s gradually
being worked offo
I t was concluded that, as far as the gaps are known, Exfor appears to havea completeness of 75 to 92$, for the years since 1970. For the earlier
years the completeness i s worse, considering only the 10 000/40 000 series,
but better when including the 50 000/80 000 series. Nevertheless i t i s
realized that there are s t i l l gaps even among important data, and i t wasconsidered whether the compilation efforts should be selective.
Mr. Dunford reported that JJKDC will start soon with the evaluation ofresonance-parameters for the new issue of BNL-325. Therefore, resonanceparameters should continue to be compiled with top priority.
Mr. Pearlstein said that the centers should continue to review importantdata fields for completeness and see that these data are compiled fast andcomplete. Se suggested that SEDS may propose a priority l i s t of importantdata including at least data used as standards, used for important applications, resonance-parameters (Action 51)» and that such a l i s t should bemade also in view of forth-coming meetings. Due to limited manpower available, priorities must be set. Important data must be completely compiled
before they are requested by customers.
Mr. Pearlstein said that data centers should encourage external scientists
to spend some time at the centers, for mutual benefit. This proposal was
adopted as Recommendation 3O
6.d

Exfor scope

Mro Dunford said that fission-product yield data and capture-y spectra are"grey areas" which require help from outside the Four Centers. The fissionproduct yield compilation of Meek and Rider i s going to terminate.
Mr. Schofield reported that CCDN converted the Crouch Library of experimental
fission-product yield data to Neudada, and thus these data could well betransmitted after performing a simplified Exfor compilation procedure, (seeConclusion 12).
Mr. Dunford said that this converted Crouch Library should do i t , althoughi t i s known that this does not contain all of the details required in Exfor.
UHDC would have no manpower for reviewing the correctness of the Crouch
Library. Mr. Dunford pointed out that Meek and Rider's compilation contains
about 1000 references, whereas Crouch has about 300 references only, due toquality selections. KNDC could provide a l i s t of references found missingin Crouch,s Library (Action 52).
I t i s concluded that capture gamma spectra data are compiled in Exfor on a
voluntary basis (Conclusion 13).

26
Minutes
NND
6.eLab-assi gnment

I f an experiment has "been done i n two or more laboratories, the primary lab
will be assigned in Exfor according to the same rules as i n Cinda (see Conclusion 7)«
6.f

Derived resonance-integrals

I f derived resonance-integrals, as d i s t i n c t from d i r e c t l y measured values,
are compiled at a l l in Exfor, they should be given the Status code DEP
combined with the entry-number of the data they were derived from; theyshould be compiled with the proper energy limits and coded with the cjuantitymodifier LIM. They must be derived from data of a single experiment, otherwise they are regarded as evaluated datao (Action 53).

7.

Implementation of the Generalized Exfor System for
Neutron Nuclear DataI t had been agreed e a r l i e r that the Generalized Exfor System developed forcharged p a r t i c l e nuclear data, should be adopted, sooner or l a t e r , also forneutron data.
Mr, Dunford said that UNDO would l i k e to s t a r t i n two or three months withcompiling neutron data i n the Generalized Exfor System i f t h i s were agreed
now.
Mr. Derrien said that CCDN cannot compile charged p a r t i c l e data, but can
accept data in REACTION, formalism i n two to three months. At that time
CCDN would not yet be able to check such data. They would not compile data
i n EEACTION formalism before a year from now.
Mr. Lemmel said that HDS could accept data in REACTION formalism immediately
and could produce such data probably i n summer 1977*
Mr. Manokhin said that CJD would have to write a number of new programs but
could accept whatever i s decided.
Thus the following time table was written down:t e n t a t i v e date when thecenter i s prepared toaccepttransmit
resp.
REACTION format data

NNDC

Aug/Sep 1977

CCDN

Jul/Aug 1977

KDS

immediately

Aug/Sep 1977
1978
about July 1977

agreed1 Oct. 1977

1 April 1978

It, is agreed that the transition to the Generalized Exfor System proceeds
as described in Conclusion 14.

27
Minutes
8. Miscellaneous
Mr. Dunford said that the NNDC Newsletter is sent also to recipients inother service areas. Additional addresses would "be welcome. See Action 54*

29
Minutes
CPND
Part I I of t h e Meeting:

All Nuclear Reaction Data

10. Opening
Mr. Chukreev opened p a r t I I of the Meeting on Thursday morning, althoughsome agenda items, in p a r t i c u l a r item 13 on photonuclear data, had been
discussed already on Wednesday.
Mr. Schmidt was e l e c t e d as chairman.
The t e n t a t i v e agenda was adopted as given on page 12. However, the a c t u a lsequence of d i s c u s s i o n s was sometimes d i f f e r e n t .
Agenda item 11; Brief s t a t u s reports of the Centers, re CPND
1. Mr. Chukreev reported on CAJaD (see Appendix 5 ) . In the subsequentdiscussion, Mr. Chukreev explained, t h a t the method of sending author
proof copies of the drafted e n t r i e s has led to good cooperation withthe authors, who supplied additional information and submitted additionala r t i c l e s for compilation.
CAJaD cooperates with LUaP with respect to "Recent References" andwith CJD with respect t o Exfor programs.
In 1976 CAJaD had received about 300 requests for data from
customers inside and outside the Kurchatov I n s t i t u t e . About 50% of therequests could be answered, but for many requests no data were a v a i l a b l e .
The requests included a large fraction of requests for d i f f e r e n t i a l data.
The main application for which data were requested, i s the method of
a c t i v a t i o n analysis i n various fields of science and technology.
2. Mr. Kondurov reported b r i e f l y on the a c t i v i t i e s of LUaP which are i n
the f i e l d of Nuclear Structure and Decay data and therefore not d i r e c t l yr e l a t e d t o t h e present Meeting, except for the compilation of "Recent
References" from USSR l i t e r a t u r e . This a c t i v i t y i s done i n cooperation
with CAJaD. A f i l e covering the period 1972-77 i s now available. Newe n t r i e s are regularly submitted t o ORWL, but the cooperation i s d i f f i c u l t
due to t h e slow speed of mail and r e p l i e s .
With respect t o numerical data the ENDSF format i s used for storingt h e i r evaluated data of excited nuclear s t a t e s , for which primarily t h e
γ-decay data are compiled. Each nuclear level may have up t o 20 parameters.
3. Mr. Mttnzel reported on the past y e a r ' s a c t i v i t i e s of KACHAPAG, see
Appendix 6 .
He stressed i n p a r t i c u l a r t h a t t h e limited manpower available should
primarily be used for compilation and that he therefore hopes t h a t thedevelopment of t h e Exfor system can now be regarded as f i n a l , and t h a t
KACHAPAG can obtain additional and improved Exfor programs.
I t i s intended t o prepare a printed version of t h e KACHAPAG f i l e .
As the t o p i c for the f i r s t volume, " i n t e g r a l , , data for proton reactions
on nuclei with proton numbers of 28 and higher have been envisaged.
CAJaD agrees t o compile such data from USSR with high p r i o r i t y .
See Action 60.

30
Minutes
CPND
4. Mr. Behrens reports on the activities of ZAED. ZAtgn regards the matterof a CPND bibliography now as solved and has no plans in this field.
Planned and completed publications and data evaluation activities by
ZAED are described in Appendix 7«
5. Drs. Ikegami and Abe report on the Japanese CPND activities (seeAppendix 8) soad present a block diagram showing the coordination ofvarious groups and committees. It seems that it is difficult to set up
a Japanese CPND Center, and that the assistance by the IAEA in stressing
the desirability of such a Center is effective. (Action 61)
If sufficient staff becomes available, this Center will concentrate on
the compilation of differential data, for example by compiling firstJapanese experimental data, and then to concentrate on a limited defined
topic within the large field of CPND, according to the expressed dataneeds for application and/or basic sciences.
6. Mr. Derrien reports that CCDN has no mandate to compile CPND, but that
CCDN could well act as a CPND distribution center, in particular after
the computer programs for the Exfor system will have been unified for
NND and CPND. The CCDN storage and retrieval programs are now modified
so that NND and CPND are treated in the same way. This includes thegeneration of Exfor statistics.
7» Mr. Pearlstein reports that NNCSC has taken over the US responsibilityof a CPND Center and that the name was therefore changed from NNCSC(National Neutron Cross-Section Center) to NNDC (National Nuclear Data
Center). For further details see Appendix 9 * The main effort during
the past year was the creation of a CINDA-type computerized bibliography
for integral CPND, of which advance copies were submitted to the meeting.
It covers the period 1 Jan. 1976 to 31 Jan, 1977 and includes an index
to the KACHAPAG file. So far copies are distributed free of charge.
Bulk shipments are planned to the distribution centers, who are asked
to submit immediately the number of copies they need and to submit later
their address lists of distribution. See Action 62.
The meeting unanimously appreciated the efforts of NNDC to create the
CPND bibliographic system and to compile the relevant entries in sucha short period.
Participants inquired whether a cumulative issue of MacGowan's bibliography covering the period up to 1 Jan. 1976 would be issued since thelast cumulative issue covers only the period up to 1973. NNDC was
asked to investigate (see Action 63)»
Mr. Pearlstein continued, reporting that there will be in the US, on
3 - 5 May, a Panel on intense neutron-sources based on the d-Li reaction.
There had also been a Panel on Reference Nuclear Data with Attendees
from various scientific societies, editors, committees, etc., which
represent a large data users group, including the field of environmental
research. NNDC is asked to distribute the Report on this Panel to NND,
CPND and NSDD Centers. Mr. Munzel asks to be informed of the next
similar meeting* See Actions 64 and 65.

8.

31
Minutes
CFHD
Mr. Lemmel*s report on CFND activities at HDS is given in Appendix 10.
It was pointed out "by participants that HDS computer programs for the
Generalized Exfor System (as well as Exfor programs from other centers)
could be useful to other centers and groups. It was recommended toinvestigate whether Exfor programs could be converted "by an outside
firm or by the Computer Program Library of NEA for implementation onother computers (including, e.g. conversion from FL/1 to Fortran).
See Recommendation 4. HDS was also asked to make the Exfor system known"by Actions 75 + 76.

9e

Mr. Seeliger reported that his group in Dresden is mainly involved withneutron reactions, but also with some experiments on (p,n) reactions.
Other institutes, e.gs- at Rossendorf, perform CFND experiments, but so
far no compilation activity exists. Mr. Seeliger was asked to inform
relevant groups of the international data compilation and exchange
efforts (Action 66).

10,

Mr. Marcinkowski *s statement is given as Appendix 11. Compilation andevaluation of (p,y) spectra for iron continues using the NSDF format.
Examples are given in Appendix 11. He prefers to issue publications on
evaluated (p,y) spectra data in a form convenient for users, rather
than only compiling data in Exfor. He has plans for working on chargedparticle reaction data on neon,

11, Mr. Vasiliu reports on experimental work on the Bucharest Cyclotron.
There is, however, no special effort on CPKD compilation.
12, Mr e Lemmel reports that Mr. Agrawal is undertaking the compilation of(d,d) and (d,p) stripping cross-sections as described in last year's
report HJDC(NDS)-77 Annex 7<>
13, Mr. Lemmel reports that Mr. Dearnaley, UK, uses differential CFND forsurface investigations but has so far no manpower to compile such data
in Exfor format although he would like to cooperate in an international
effort.

32
Minutes
EXPOR
Agenda item 12; Exfor Manual
Many rules of the Generalized Exfor System were discussed in d e t a i l . i n
a Subcommittee consisting ofMr, Bychkov
Mr, Dunford
Mr/ Lemmel
Mr, Miinzel
Mr. Schofield
Miss Zhuravleva,

The conclusions reached were reported to the plenary meeting. They arel i s t e d on pages 47""52, Besides these conclusions only the following
items need to "be mentioned:

12,b Revision of Chapter VII and VIII of the Manual
Mr, Lemmel introduced the Memos CP-D/2O and CP-D/23. He pointed out thatsuch memos should "be transmitted to the other centers at l a t e s t one month"before the Meeting, and he apologized that t h i s had not "been possible withthe present memos. Therefore, i t cannot "be expected that these memos should"be considered "by the Meeting in d e t a i l . Instead, he asked the Meeting for
approval of the restructuring erf these Manual Chapters as proposed. Details
could "be corrected l a t e r , where necessary, "by means of CP-Memos.
^ r , Dmiford did not l i k e the alphabetical arrangement of the keywords i n
Chapter VIII and said that he had to discuss the matter at OT3C before being
able to agree or disagree,
Mr, Munzel welcomed the proposed restructuring of the Manual, because t h i smade i t much easier for programmers and compilers, in particular for Exforbeginners, to find the rules when needed. He preferred the alphabeticalorder of Chapter VIII,
See Exfor Conclusion 1.2 and Action 79 *I2 e d 5~oharacter lab-codes?
Mr, Lemmel reported that for atomic and molecular data a large number of
additional lab-codes were required which made i t desirable to introduce
lab-codes of 5 characters length instead of 3 characters as before,
Mr, Pearlstein suggested that i n such case a separate lab-code Dictionary
for atomic and molecular data would be preferable.

33
Minutes
EXFOR
12, f Fission and Spallation
There was a detailed discussion on how to code under REACTION the productnucleus in the case of fission and s p a l l a t i o n . In p a r t i c u l a r i n the caseof a t a b l e giving the yield of many product nuclei, i t would "be desirable
to have the product nuclei coded in a variable column i n the DATA Section.
In t h i s case the problem arose how to l i n k information coded under DECAYDATA to the appropriate product nucleus.
I t was concluded t h a t a formalism of a variable product nucleus i s desirable
fExfor Conclusions 2,8 - 2,13) and a d e t a i l e d proposal should be submitted
a f t e r the Meeting by a CP-MemOo
Mro Miinzel said that the product-nucleus i s most e s s e n t i a l information to
be included i n an Exfor data index to be accessible by r e t r i e v a l s i n theindex a A formalism of a variable product nucleus could not be used at
Kachapag before having an Exfor indexing program indexing not only the
REACTION code but also the variable product nuclei i n the DATA Section,
I t was agreed t h a t a formalism for variable product nuclei should be formulated in a general way such that i t applies not only for fission but also
for similar processes such as s p a l l a t i o n . Spallation data should, however,not be coded in Sxfor before having a Lexfor entry containing the d e f i n i t i o nof t h i s process (Action 82),
Mr, Miinzel suggested that the formalism for variable product nuclei shouldbe even more general as t o include different reactions such as
P.n + P)p,2n 4- p)
P, 3n + p)
p,2n + 2p)
The Kachapag file contains several entries where such reactions could be
advantageously combined in one subentry with variable product nuclei which
sufficiently define the reaction. The REACTION code should then include
in SF3 an artificial process code indicating that the particles produced
are to be calculated from the balance of target nucleus, incident particle
and product nucleus,
Mr, Dunford and Mr, Lemmel replied, that for neutron data the explicit
coding in SF3 was usually more important for retrievals than the residual
nucleus. Therefore, the formalism proposed by Mr, Miinzel would create evengreater problems in an indexing program than the case of variable fission
product nuclei. Furthermore, the balance of target nucleus, incident
particle and product nucleus does not distinguish between

so that the REACTION coding would be ambiguous.
further investigations (Action 86),

These problems require

34
Minutes
EXFOR
Agenda item 12.xt Miscellaneous items on Bxfor
Transliteration of author names
Mr. Munzel pointed out that it would "be desirable to have in EXFOR a
unique transliteration scheme of Russian characters.
Mr. Lemmel reported that the transliteration scheme used in Cinda andExfor is given in the Exfor Manual on the Lexfor page "AUTHOR".
This scheme was based on the old ISO standard, amended for computerusage to avoid accents (resp. "diacritical marks"). However, since inthe literature different transliteration schemes are in use, it ishardly possible that the data compiling physicists strictly follow the
EXFOR/ISO scheme. Therefore, when retrieving on authors, names, onewill have to retrieve on the various transliterations in use.
Unfortunately, when I M S started, they did not adopt the ISO standard
but the Anglo-American scheme of transliteration, which is not logicalin two cases:
1.

The Russian "U," is transliterated in I M S to "ts" (tsentr for
centre) rather than "c" (centr), although the character sequence"TC" = "ts" exists in Russian, too. A back-transliteration of"ts" is therefore ambiguous.

2.

The "soft" vowels "KJ" and " H " are transliterated in I M S to"yu" and "ya" instead of "ju" and "ja" as in the old ISO and in
all Slavic languages using Latin characters. This use of "y" forthe "soft" vowels is in contradiction with the simultaneous useof "y" for the "hard" vowel "bl".

Despite of these obvious defaults, ISO has meanwhile adopted the AngloAmerican transliteration scheme as a second alternative thus abolishingits task of giving unique standards.
It was concluded that in Exfor the transliteration scheme given on the
Lexfor page' "AUTHOR" should continue to be used ferfor Conclusion 1.5).
Mr. Grigorian volunteered to investigate whether there exists a USSR
National Standard for transliteration (Action 83 )«Reference coding
Mr. Grigorian and Miss Zhuravleva questioned whether the coding ofreferences could not be standardized in a more systematic manner.
Mr. Dunford and Mr. Lemmel admitted that the reference coding is reallyrather complex, but that it is not more complex than required for the
many different ways in which references occur. In particular report
codes are irregular, even within a given series, and often even journalreferences are irregular. The coding rules adopted seem to be convenient
for the most frequent cases and sufficiently flexible for odd cases. The
existing checking programs and their recipees can be made available.

Agenda item 13s Photomclear Reaction Data

35
Minutes
Photo HD

1o Mr, Abramov expresses his interest in using the Generalized Exfor
System for the compilation of photonuclear reaction data. He i n t r o duces Memo 4C-4/25 of 2 April 1976. Most items of his critique ofthe old Exfor system have meanwhile been solved i n the Generalized
Exfor System which can be used for the compilation of photonuclear
reaction data without any further changes.
2.

He suggests.amodification:
the keyword "N-SOURCE" should be generalized to "SOURCE1, in orderto take care of incident particles other than neutrons. I t i s concluded
to keep, in order to avoid changes of existing computer programs, thekeyword N-SOURCE, which instead could be converted to a more generalized
keyword in an output-editing program (e.g. to "SOURCE, or "INC-SOURCE").
See Exfor ConclMg:i.oi3L3>:3 and Action 74.

3. Mr. Sokolovski.i has also tentative plans to compile certain photonuclear
data. Similar a c t i v i t i e s may be possible at the Lebedev-Institute(Lazareva). Mr. Abramov i s primarily interested in the compilation of
his own experimental data. All these groups are encouraged to compile
photonuclear reaction data in Exfor format and make them available tothe data dissemination centres*.
See Recommendations 5 -f 60
4* Mr. Dunford reports on the a c t i v i t i e s of Mr. F u l l e r ' s Photonuclear Data
Centre at MBS. For a more detailed Status Report of t h i s Center see
Appendix 12O Mr, Fuller i s primarily interested i n the evaluation ofcertain photonuclear reaction data and a publication i s planned forJune 1977« An index to both, l i t e r a t u r e and data f i l e , has been published
for the years 1973-76.
F u l l e r ' s Library has a bibliography but almost none of the BXB-information required in Exfor. I t also does not store errors. A conversionof F u l l e r ' s Library to Exfor format seems possible i f one accepts i n complete BIB-dnformation.
5» Upon question by Mr. Sokolovskij, Mr. Pearlstein explains that Mr. Fuller
joins a l l relevant meetings of NNDC. He has only a small staff andprovides answers to customer requests within the limited resources available. Correspondence about photo-nuclear data can be sent to NNDC
(with information copy to NDS) for coordination with US a c t i v i t i e s .
6. Mr. Dunford reports that Berman's Library for photoneutron cross-sections(which has also been included in F u l l e r ' s Library and i n the Livermore
Library) has been converted by NNDC into an Exfor-similar format.
The quantity codes in t h i s conversion were somewhat improvised, since the
REACTION format had not yet been defined, but they are self-explanatory.
This converted f i l e has been made available to the other centers (compare
CINDU-11 page 38).
*[B.L. Berman: Atlas of photoneutron cross-sections obtained withmonoenergetic photons, UCRL-74622 (1973). Version as of January1975 see Atomic and Nuclear Data Tables, vol.15 (April 1975) pages
319-390.]

36
Minutes
Photo HD

7. Mr. Dunford reports that Fuller's photomclear bibliography willcontinue "Co be published, Mr. Pearlstein suggests that Mr. Abramov
send to Mr. Puller regularly a list of new USSR references,
Mr. Sokolovski.i supports this idea.
Since Mr. Fuller is also using "Recent References", it is finally
recommended that USSR references on photonuclear data be included in
the regular transmission of USSR "Recent References",, Mr.' Kondurov
says that this is within the responsibility of LIJaF and agrees toinclude photonuclear references. See Recommendation 7 .
8. Participants are asked to report on any other photonuclear datacompilation activities,,
The Japanese participants report that measurements of photonuclear
data are performed in Japan, but that the results are published inconventional form and not compiled on magnetic tape. There was alsoan International Conference on this topic with published proceedings.
In the GDR only calculations of photonuclear data are performed.
Mr. Perrien reports that the earlier measurements by Bergere in Saclay(France) have been included in the Berman Library, and that thesemeasurements do not continue.
Mr. Vasiliu welcomes the exchange of photonuclear data (see Action ftp)
and feels that there had been some direct contacts between Mr, Fuller
and Romania.
9. In order to promote the awareness and availability of Japanese photonuclear data, the Japanese delegation is asked to organize that relevantJapanese references are reported to the other interested Centers in aformless way. Mr. Dunford suggests that small data sets should betransmitted in any convenient form but that large data sets should betransmitted on magnetic tape, possibly in Exfor format, but at leastin a format close to Exfor (Recommendation 6 ) . He suggests that MDS
should inform Mr. Ikegami for this purpose about the more importantfeatures of Exfor.such as the 11 columns field width of the DATA-Section
and the principle keywords of the BIB-Section. The participants express
that such a "Brief introduction to Exfor" would be useful for many
experimental nuclear physicists, and NDS is asked to prepare such an
introduction. See Action 66,

37
Minutes
Coop
Agenda item 14t Cooperation
Mr. Dunford proposed a new series of Meraos on Exfor matters, since many
memos had to get double numbering within the 4C series and CP s e r i e s .
Mr, Munael suggested that the exchange of such memos should "be reduced toa minimumo
I t was decided that CP-Memos are used for a l l matters of interest to a l lcooperating centers. (Thus the characters "CF* do no longer stand for"charged particles' , "but rather for "centers 1 parliament" or H chat-andparley" or "compiler's passion" or "confusing and puzzling" whatever
applies.) All matters of interest only to the four neutron-data centers
continue to be discussed i n 4G-^emos. (Conclusion 15)
EDS should continue to maintain the Dictionaries and transmit them
regularly to the other centers, as agreed e a r l i e r and modified in Conclusion I6and Actions 71 + 72.
NHDC should continue to be responsible for the Exfor Manual according to
the existing rules.
All centers should attach labels to transmission tapes (Conclusion 17).
Mr. Sokolovskij said that some of the Vienna tapes were hard to read.
The reason was not found, but perhaps the tape unit used was not correctly
adjusted. The l a s t tape received was in order.
Mr. Miinzel questioned how data from different centers should be sorted
in the Kachapag TRANS tapes, see Action 78.

14*"b Experiences with TRAMS tapes
The discussions followed the CP-Memos submitted about t h i s topic.
Several items discussed r e l a t e to agenda item 12 and the Exfor Conclusions
given on page 47.

14.c Computer programs
See earlier under agenda item 11., paragraph 8., and Recommendation 4.

38
Minutes
CPND Bibl.
Agenda item 15: CFHD Bibliography
Mre Chukreev
reported that he had transmitted on magnetic tape "Recent
References1, from the USSR, This includes charged-particle reactions.
The Meeting appreciated t h i s effort and noted that "Recent References ,, i spart of the network on nuclear structure and decay data, so that no details
need to "be discussed at the present meeting,
Mr. Dunford presented a preprint of the KMDC Bibliography of integral CFND.
This effort was highly appreciated and the format developed was approved*
Comments are requested (Action 88)«
The present.issue
includes l i t e r a t u r e from the period 1 Jan. 1976 ( = endof MacGowan,s compilation) to 31 Jan. 1977* There are
thereof

2761 "blocks of entries (in the sense of Cinda),
1653 experimental blocks,
748 theory
360 reviews.

The blocks include data index lines to the Kachapag f i l e .
NHDC offers to distribute copies, for the time being free of charge,and
requests to submit address l i s t s (Action 89)*
Mr. Kbndurov suggested that reference codes of CGDEN, Recent References andCinda should be unified, and that t h i s topic be discussed at the next Meetingon Nuclear Structure and. Decay Data (Action 90)Mr. Munzel said that the existing systems should not be changed in t h i smatter.
Mr. Lemmel added that the CODEN codes are impractical as the following
example shows:
Phys. Rev. B
Phys. Rev. C

CODEN

Cinda/tecfor

PLRBA
PRVCA

PR/B
PR/C

39
Minutes
Agenda item 16: Nuclear Data Tagging and Flagging in IMS
Mr. Lemmel reported that the nuclear data centers have an interest that
retrievals from IMS on references containing nuclear data measurements
can be improved. With the presently available IMS Thesaurus and Subjects,
nuclear data retrievals from IMS are difficult to specify and produce toomuch noise. Following a meeting of representatives from IMS and data
centers (GOTH and NDS) i n April 1976, INIS specialists are investigating
how to improve nuclear data retrieval f a c i l i t i e s by appropriate tagging
ar flagging of IMS entries.
Mr. Behrens added that an INIS Liaison Officers' Meeting i n November 1976
charged a consultant (Mr. Gadjokov) with investigating the matter and working out a proposal. The final proposal, which i s expected for the end of
1977, will then be tested in certain IMS and data centers. The proposal
should be circulated to data centers (Action 91)»
Mr. Behrens reported on a planned comparative analysis of "Recent References1,
versus IMS and was asked to circulate the results (Action 92).
CCDN was asked to send to NKDC and CJD the retrieval profile of IMS r e t r i e v a l s for the Cinda Scope (Action 93)»
Mr. Usachev noted that IMS retrievals so far do not yet work in r e t r o spective.- Mr. Behrens replied that t h i s depends on the retrieval f a c i l i t i e s
and computer capacity at individual INIS centers.-

Agenda items 17 and 18 on customer services and future developments were,
due to lack of time, touched very briefly. However, many related topics
were mentioned under different agenda items.
For future developments priority will have to be given to nuclear datafor isotope production, fusion.and neutron sources.

Agenda item 18A: Data Base Management Systems^ r * Schofield reported that CCDN will go over to a data base management
system (IDMS) for certain data storage and retrieval operations.
Mr. Dunford reported that NKDC i s using a data base management system(DBMS-1O), as a t e s t , for t h e i r system of mailing addresses.
There are several systems with different characteristics on the market.
The commercial software does the data storage and f i l e maintenance, but
the systems are usually difficult to implement. For retrievals the
programs are often inefficient so that special indexes have to be constructed.
Mr. Grigorian reported that in the USSR a data base management system i sbeing created and that CAJaD i s involved in such considerations.
However, there are no results yet. There had been a meeting i n Zvenigrad
near Moscow for making decisions on a system called "State Service Standard
Reference Data".
See Actions 56 + 57 «

40
Minutes
Agenda, item 19; "The loss of the "barn"
Mre Lemmel reported that in 1976 a Council Directive, see Appendix *n.
has "been issued by the Council of European Communities (CEC), to put theunit of the ""barn" into a l i s t of units which should no longer be usedwith effect from 31 Dec, 1979a This Directive had apparently been basedon a decision by the Congres General des Poids et Mesures, organized by
the Bureau International des Poids et Mesures (BIPM).
Since then the Agency had been approached by various individuals andcommittees to take i n i t i a t i v e against t h i s (for nuclear physicists
obviously wrong) decision.
The Agency then wrote to the BIB! and asked for background information
for the decision against the "barn". BUM replied, did however not
send any background information, but suggested to contact the CEC directly.
Mr. Pearlstein reported that CSEWG had objected, within the US, against
the abolishment of the "barn" andhad pursuaded important journals tocontinue to allow the units "eV , and "barn". The Meeting should perhaps
follow the US recommendation,
Mr. Usachev reported that USSR journal editors got advised already now
to abandon the "barn".
I t was decided to draft a statement against the abandoning of the "barn ,,and to submit this statement to IHDC and to appropriate authorities(e.g. the CEC). The statement was, due to lack of time, not drafted
during the meeting, and the action was given to KDS. (see Action 58)«
Subsequent to the Meeting, a Resolution was drafted by HDS, distributed
by Memo of 29 April 1977 "to Meeting participants and adopted with somemodification as given on page 5%

Agenda item 20: Conclusions
Conclusions, Recommendations and Actions are compiled on the following
pages.
Mr. Abramov suggested that a l i s t of active data centers involved in the
Exfor data exchange should be included in the Minutes of the Meeting(Action 55)*
Mr. Pearl stein suggested that the meeting materials (actions etc) be
d i s t r i b u t e d a f t e r the Meeting as early as possible.(Action59)•

41
Minutes•Agenda item 21t Date and place of next HKDC-Meeting
Mr. Jerri en offered to host the next meeting in Paris resp. Saclay.
It was noted that a cycle of 1 1/2 years would be sufficient and preferable for future meetings. Preferably, the meeting should take place ina week adjacent to the meeting on nuclear structure and decay data, but
it seemed to be impossible to reach such a schedule already for 1978.
A tentative date of 3 - 8 April 1978 was proposed, Mr. Schmidt was asked
to circulate possible dates (Action 94 )»Mr. Schmidt reported that it was increasingly difficult at the Agency tofind the financial support needed for the HRDG Meetings.
The Meeting participants expressed that these meetings are of great
importance for the continuing cooperation of the data centers and thecoordinated operation of the Ixfor system and other jointly operated
systems. It was recommended that the Agency continue to sponsor thesemeetings and should make it possible that not only technical staff but
also the center heads meet regularly at 1 or 1 1/2 year intervals.
See Action 95 sjid Recommendation 8.

43
CONCLUSIONS

Conclusi ons
CINDA

Conclusion 1: CIHDA Improvement Program
The Four Neutron Data Centers consider that, for economical and practicalreasons, an "archival issue" of Cinda would "be desirable, which contains
Cinda information up to a date X to "be defined,in a final form.
For this purpose several'steps have been agreed, as described below, toimprove contents and arrangement of Cinda information. Due to the historical development of Cinda, unified efforts of the Four Neutron Data Centers,
which became possible only since the last three years, made Cinda, for the
first time, to a real neutron data index. The desirability of this new
Cinda concept has been proven by means of a questionnaire inquiry performedby NNCSC in 1975/76.
On this basis the Four Neutron Data Centers have agreed on an improvement
program for Cinda to be completed in advance of an archival publication of
Cinda to be issued in 1979o The centers agree to the following tasks to be
performed:
1. All Cinda blocks with data index lines will be reviewed to ensure thatthey comply with the present definition of a block.
a) There should be a correspondence between the main reference in
CINDA and the main reference in EXFOR.
b) Comments on data index lines should be corrected to presently
adopted standard.
c) Where practical, important references should be checked to ensure
accuracy of energy ranges and comments.
2. All entries with comment " ... data index lines" will be checked. Most
should be deleted from the file.
3. All FFG entries will be reviewed and entries under FPB will be generated
where necessary.
4» The comment N,3N will be added to the comment field of all entries converted from N, 3N to N,XNe
5. Possible duplicates detected by CCDN will be checked and necessary
deletions made.
6. All other existing blocks should be reviewed to ensure that they conformto present standards. (Lower priority).
These tasks to be performed by all centers will be supplemented by thefollowing special improvement projects:
Area 11.

Create blocks and data index lines for entries converted from SCISRS-IO

2.

Possible review of a l l entries for RES, LDL, STF, RI and o(thermal).
Area 2

1.

Write program to check duplications of CINDA entries.

44
Conclusions
CINDA
2. CCDN will convert the Cinda master f i l e to the newly adopted ref-type
codes.
3.

Special retrievals using existing programs will be made to support
improvement a c t i v i t i e s of the other centers e
Area 3

1.

Publications from area-3-labs in area-1/2/4 journals not scanned by HDS
have to be blocked to appropriate are-3-blocks. This i s currently done
for new entries but must s t i l l be done for a number of older entries,,

2.

Review of certain quantities (as far as not yet done) e

3.

Assist i n improvements for area 4»

4.

As far as possible, to convert Exfor 70 000 series entries to regular
30 000 series entries and to index the corresponding 30 000 series entries
in Cinda.
Area 4

1.

CJD will check the USSR l i t e r a t u r e coverage before 1969.

2.

CJD should regularly prepare Cinda entries for a l l USSR preprints andlab-reports which are available to them, even i f i t i s a single issue
only. CJD should also obtain preprints and lab-reports regularly from
USSR nuclear physics i n s t i t u t e .

3o HDS will send CJD a Cinda retrieval with a l l entries of USSR labs, together
with a detailed description of the improvement work to be done. This will
mainly involve to change in the lab column the code CCP to the appropriate lab-code whenever t h i s i s possible, and to do appropriate blocking.
4.

As soon as the rules to EXFOR index lines have been included in the
CINDA Manual, CJD i s asked to submit with each EXPOR transmission tapethe corresponding EXPOR index lines for CIHDA.

45
Conclusions
CINDA
Conclusion 2:

Cinda publication

The Four Centers agree to issue in 1978 a 4 and 5 Supplement to Cinda
76/77 and to postpone the "archival issue , , to 1979* The time u n t i l thenshould well "be used for improvements in Cinda (as specified in Conclusion 1),
Conclusions about Cinda rules
3.

In Cinda, a private communication should not be entered in a block whenanother reference i s available (similar practice should be adopted in
EXPOR - subject to approval). However, there may be exceptions.
For example, when a center received a private communication containing
significant revisions to data published earlier, then t h i s private
communication may be added as a reference to the Cinda block.

4.

The data tags should be left in the Cinda f i l e as they are, however
revision i s desirable for the book-editing.

5» Data index lines for superseded EXFOR entries should not be includedin Cinda, not even with no-book flags, (see also Action 39).
6.

Each Center continues to scan for Cinda a l l publications from i t s area;
but i f the lab i s i n another area, the entries are sent, without operation
code and block-number, to the center responsible for the l a b . Thiscenter then f i l l s in the appropriate operation code and block-number, andthen forwards the entries to CCDNe (in t h i s respect NDS takes care ofarea 3 and 4)« This procedure i s to s t a r t as soon as practical.

Conclusions about joint matters on Cinda and Exfor7.

The rules on Lab assignment as given in the Cinda Manual on page II.3«1
were accepted for Cinda and Exfor.

8.

A CINDA experimental block may be defined as a l l those references pertaining to the measurement of a single experimental quantity in the
EXFOR, not CINDA, meaning of the term quantity. The single experimentshould mean a single measurement or a closely related series of measurements at a single laboratory using a single measurement technique or
multiple techniques i f they are closely correlated. The end product ofsuch an experiment i s a single set of experimental data which would
normally be coded in a single EXFOR entry. Special exception can be madeto the above rule for references to superseded and superseding data
which should be blocked together or for any other reason deemed sufficientby the compiler. Blocking of data not already compiled in EXFOR should
follow the above rules as far as time and practicality permit.

Conclusions about neutron data9.

All centers agreed to make every effort to convert the 50 000 - 80 000
series data to regular Exfor entries as soon as possible. ,10.

I t was found desirable that centers inform each other, at the time ofeach Exfor transmission, of entries being compiled or i n progress,,
Due to technical difficulties t h i s idea was dropped, except in cases
where certain data-types are urgently needed for well-known specificpurposes (e.g o on the occasion of data-reviews, publications, meetings,etc.).

46
Conclusions
NND
11. The revised Protocol as submitted "by NNDC was adopted (NNCSC to "bechanged to NNDC).
12. In view of the ending of Meek and Riders fission-product yield compilation activities the four centers see the need for regular compilationof FPY data from 1.1.1977 onwards. As a help, the Crouch FPT Library
could "be converted by CCDN through Neudada to an Exfor-type format
and disseminated to the other centers. It must be realized, however,that the Neudada-Exfor conversion is only semi-automatic. In fact,transmission of FPY data to other centers will be more efficient via
the Exfor compilation job stream. Only a limited number of works canbe transmitted at a time.
13. Capture gamma ray data are compiled on a voluntary basis.
Conclusion about the implementation of the Generalized Exfor System
14. Starting from 1 Oct 1977 until 1 April 1978 Centers are encouraged,
but not obliged, to transmit data in the Generalized Exfor format,
i.e. using the keywords REACTION and MONITOR instead of ISO-QUANT
and STANDARD. Prom 1 April 1978 onwards the old Exfor format mustno longer be used in transmissions except for corrections of older
entries, whereby retransmitted entries must be entirely in either theone or the other format.
Miscellaneous Conclusions
15. 4C-$emos continue to be exchanged for the discussion of matters ofinterest to only the four neutron data centers.
All matters of wider interest, in particular matters on Exfor, arediscussed through CP-Memos. The following centers have recognizedresponsibility for determining Exfor formats and proceduresj
1. S. Pearlstein
2. H. Derrien
3. J»J. Schmidt
4. V.N. Manokhin
A. P.E. Chukreev
B. H. Munzel
E. H. Tanaka
Mr. Abramov will be informed through Mr. Manokhin. Any other centeror group may be added to the distribution list upon request whenstarting to produce and transmit Exfor entries.
16. When sending out Dictionary transmission tapes, NDS should also sendout printed copies of the Dictionaries:
1 copy to Mr. Behrens
1 copy to NNDC
1 copy to Mr. Abramov
See also Action 25.
17. Labels should be attached to transmission tapes, specifying content
and format.

47

on the_Cfenerali zed.Exfor...System

EXPOR
Conclusions(excluding items of interest to NND Centers only)
1. general items
2. items concerning the keyword REACTION
3. items concerning other keywords
1. General items
1.1

So far Exfor transmission tapes contained entries in one f i l e witha single centre-identification code throughout (compare Section I of the
Exfor Manual). The KACHAPAG transmission tapes will contain entries
originating from different centres. This could be done in •————
either a single f i l e with a l l entries sorted in ascending order,-

or in several f i l e s on one transmission tape, where the entries
in each f i l e will be sorted in ascending order.

KACHAPAG will decide how to proceed (see Action 8 ) .
must then be updated correspondingly.

The Exfor Manual

Note: KACHAPAG decided to have a single f i l e (Memo CP-B/13 of 77/V/8).
1.2

The revised Sections VH and VIII of the Exfor Manual as proposed in
Memos CP-D/2O and CP-D/23 are accepted in principle, but details require
further consideration at the Centers,, (See Action 9 ) .

1.3

Centers are reminded that new data-types ("quantities") compiled in
Exfor require an explanatory Memo, when the quantity code i s not selfevident (compare Exfor Manual page IX.4 items 3 and 4)»

1.4

The use of the column heading keywords SUM and RATIO i s from now on
optional, and the keyword DATA may be used for sums and ratios as well,(requires corresponding Manual updating.)

1.5

The t r a n s l i t e r a t i o n of Russian into Latin characters i s continued
according to the original ISO rules, modified according to the Lexfor
entry "Author" to avoid accents. This t r a n s l i t e r a t i o n scheme has beenin use since the beginning of Cinda and Exfor. I t will be investigatedwhether there exists a USSR National Standard for t r a n s l i t e r a t i o n .

1.6

On page VIII.1.3 the text about code expansions should be clarified
as to when and by whom the expansion i s envisaged.

1.7

I t should be clarified in the Manual in which cases of Exfor coding
the symbol w /^ denotes a devision i n contrast to i t s usual use as aseparator.

1.8

I t should be explained in the Manual why the unit code PER-CENT i s
forbidden under a column heading DATA (RATIO e t c ) .

1.9

A subentry shall not contain duplicate information in lab-system andcenter-of-mass system. In case of doubt, the lab-system i s preferred for
integral CPND. ' The compiler may convert data from the center-of-masssystem into the lab-system but should document i n free text that he did so.

48
EXFOR
Conclusions
2. Items concerning the keyword REACTION
2.1

The names of the REACTION subfields and their Dictionaries are
Diet. 30 SF3 process
31

SP5"branch32

SF6parameter

33 SP7p a r t i c l e considered

34

SP8

modifier

35

SF9data-type36

SP5 - SP8 quantity

2.2

The element symbols No and YXL for t h e elements 102 and 104 are kept
u n t i l IUPAC reaches a f i n a l decision,,

2.3

In the coding rules for nuclides the envisaged "but not implemented
rule for coding the charge of ions shall "be omitted from the Manual.

2.4

The rule to code the natural isotopic composition of an elementwith mass-number "01, shall be entered in the Manual.

2.5-

Under REACTION the rules for coding particles differ somewhat in the
REACTION subfields SP2, SP3 and SP7. For ease of checking programs separate
particle-code dictionaries should "be introduced for each subfield (seeAction 73).

2.6

I f the incident particle in REACTION subfield SP2 i s a nuclide, ametastable s t a t e extension i s unlikely to occur. However, there should
be no rule to exclude i t .

2.7

For "emission oross-^seotions" involving the code "X" in REACTION
subfield SP3, the particle, nuclide or gamma-quant considered i s always
entered i n SP4 in the coding format of a nuclide. This involves i n t r o ducing i n SP4 the codes
O-NN-1 for neutrons and
O-G-0 for gammas.

2.8

In the coding of fission reactions the code FP in REACTION subfield
SF4 i s regarded as redundant and i s therefore cancelled. (Compare Memo
CP-B/13 of 77A/8 Page 1)

2.9

The process codes SFL for spallation and FUS for fusion are envisaged.
NNDC will submit proposals for definitions of these terms (Action 82).
The coding of yield data for these reactions shall be analogue to thosefor fission.

2.10

A decision on the coding of yield data for fission and similar
reactions i s postponed. (Note by editor: See memos CP-B/9, CP-D/27,
CP-B/11 of May 1977.

49
EXFOR
Conclusions
2.11

A formalism to code product nuclei as independent variable in the
DATA table shall be adopted for the case that the reaction code in SP3
is the same for all product nuclei, that iss fission and spallation.
This is subject to further discussions.

2.12

It was proposed to extend the formalism of variable product nuclei ina way which makes it possible to enter a simultaneous measurement of thereactions (P,3N), (P,4N), (P,5N) etc in a single subentry, by introducing
an artificial process code in SF3 for "different defined reactions". Sucha proposal was postponed and KACHAPAG was asked to investigate first theresulting programming difficulties, in particular for indexing and retrieving (Action 86).

2.13

A formalism must be found to code decay data for product nuclei
entered in the DATA table. A decision was postponed, and the matter shallbe considered in connection with coding of yield data. (See Memos CP-B/9,
CP-B/11, CP-C/15, CP-D/36 and others).

2.14

In REACTION coding the codes GND and MS are removed from Diet. 31.
Corresponding reactions are coded by using the isomer extension of the
product nucleus in SP4.

2.15

The use of the "multiple REACTION" formalism is restricted to

-

2.16

resonance parameters of the same isotope
multiple representation of the same dataisomeric data (branches, ratios, etc) of the same reaction
data for the same reaction obtained by different experiment reported
in the same paper, or by different types of analysis of the same
experiment; in this case the same REACTION code has to be repeatedfor each experiment resp. analysis.

Vice versa, pointers with column headings DATA (RATIO etc) are permitted
only in the cases of"multiple REACTION" and"vector COMMON data".

2.17

Pointers used under REACTION and with column headings DATA (RATIO etc)
may be used also elsewhere in the BIB-Section. In addition, different
pieces of information in the BIB-Section may be linked to each other bypointers not referring to DATA or REACTION.

2.18

The examples of pointers given in the Manual, on page VIII.3 REACTION.6
of CP-D/23 and elsewhere, should include characters used as pointers in thestjle of KACHAPAG.

2O19

On page VIII.3 REACTION.5 of CP-D/23 examples or cross-links to Lexfor
for "implicit" sums and ratios should be added to item 4»

2.20

On page VIII.3 ISO-QUANT.4 and on page VIII.3 REACTIONS of CP-D/23
the separator "+" shall be defined as a mathematical sum. In case that
another sum is meant (e.g. weighted by abundance) the modifier PCT shall be
used in order to make the sum a mathematical sum.

50

EXPOR
Conclusions
2.21

Isomeric r a t i o s are coded with the code fRAT' which i s introduced i nDiet. 32. The same code i s used also for ternary/binary r a t i o s i n ternaryf i s s i o n , and for t h i c k - t a r g e t - y i e l d r a t i o s . The isomer extension of the
product nucleus i n £5F4 may have the mathematical operators' *•'+"' and n/" asshows i n the following examples; the code "T" i s introduced for " t o t a l " .
isomeric r a t i o :(...(...,...)Z-S-A-M1/G,,SIG/RAT)( . . . ( . . . , . . . ) Z - S - A - M 1 / T , ,SIG/RAT)

isomeric sum:(...(...,.,.)Z-S-A-M1+M2,,SIG)
Note that SIG/SUM w i l l not be coded (but compare
CP-B/13 of 77/T/8 page 2 and CP-D/37 of 77/9 A i t e m 1
SIG/RAT i s coded t o indicate t h a t t h i s quantity has,
as d i s t i n c t from SIG, not the dimension of a c r o s s section*

ternary/binary f i s s i o n r a t i o :(...(...,F)TER/BIN,SIG/RAT)

thick-target-yield ratio:(...(...,...)...,,

2.22

The coding of the Product Nucleus (resp. Residual Nucleus) i n SP4 under
REACTION i s obligatory, except when undefined (TOT,ABS e t c , ) .

2.23

For the factor "abundance" the modifier FCT i s used under REACTION and
ISO-QUANT, r a t h e r 't'h'sin RE!,'.1 ""(Compare Lexfor "General Quantity Modifiers")

2.24

The coding of reactions where, e.g. i n e l a s t i c s c a t t e r i n g leads t o an
excited level which decays by fission or p a r t i c l e emission, requires
further consideration.

2.25

Page VIII.3 REACTION.3 of CP-D/23 contains a mistake i n the second
example of item 15 which should be corrected.

51
EXFOR
Conclusions

3. Items concerning other keywords
3.1

When an Exfor entry contains two or more INSTITUTE codes and a codedfacility, an institute code should "be added to the facility code, whenever
the location of the facility can be determined,,

3.2

The new coding rules under EN-SEC as proposed in Memo CP-D/24 (4C-3/200)
are adoptede

3.3

The keyword "N-SOURCE" is kept unchanged, but its meaning is generalized
to "Source of incident particles or gammas,,. In output-editing programs
it could "be converted to, e.g., "SOURCE" or "INC-SOURCE".
See Action 74.

3.4

The coding under the keyword REL-REF is changed to the string(code from Diet. Tjf, subaceession-number,author,reference),)
The author is written in the same style as under the keyword AUTHOR.

3.5

Item 2 of page VIII.3 KESID-NUC of CP-D/23 contains an obvious mistake
which should be corrected.

3.6

Under STATUS the codes SPSDD, HEP, COREL must be followed by asubaccession-number. KDS will write a memo on the use of the code COREL(Action 87)• (Note by editor: the discussion on this topic is continuing:
see Memo CP-D/39.)

3.7(Cancelled).

3.8

Under the keyword STATUS the coding in the form
' (DEP,12345002,23456005)
is not accepted but replaced by(DEP,12345002)(DEP,23456005)

3.9

On the Manual page V i n . ^ ANALYSIS a note should be added in front
to explain the purpose of this keyword.

3»10

Decay data for monitor values must not be entered under the keyword
DECAY-DATA but rather under a new keyword DECAY-MON, which has the samecoding rules as the keyword DECAY-DATA. It is essential to note that
under DECAYHMON that decay-data are entered which had been assumed by theauthor for the monitor value given.

3.11

The coding under the keyword MONITOR is revised and shall follow
the same rules as under REACTION. The keyword MONITOR shall be obligatory
except when not relevant. CAJaD will prepare a CP-Memo (Lexfor entry) todefine for which kinds of data the monitor is not relevant, similar to theexisting Lesfor entry under "STANDARD".(Action 85)

52
EXFOR
Conclusions

3.12

The remaining information previously coded under the keyword MONITOR
shall be coded under a new keyword "MONIT-REF" with the following subfields;
SP1 = Exfor (sub)accession-number of monitor data
SF2 = f i r s t author, written i n the same s t y l e as under the keyword
AUTHOR, followed by *+' when more than one author e x i s t s
SF3 to SP7 or SF8 = reference in same format as under "REFERENCE"
The keyword MONIT-REF i s not obligatory.

3.13

Thus the coding i s similar to that under "REL-REF". In the case that(sub)accession-number and author are omitted, the corresponding commas mustbe given, for example
MONIT-REF (,,reference)

3.14

The new keyword MONIT-REF and i t s coding rules shall be reviewed at
the centers and any objection communicated soon i n a CP-Memo. Since t h i s
proposal arose at the Meeting, the staff of the centers must be given theopportunity to review i t before i t i s formally adopted. (Action 84)»
(Note by e d i t o r : see Memo CP-C/15 item VI.)

3.15

Entries under MONITOR and MONIT-REF may be linked by pointers.

3.16

The new keyword ASSUMED and i t s coding rules were adopted as proposedin CP-D/21.

3.17

On the Exfor Manual page VIII.4.4 i"* i s stated that the column-heading
keyword FLAG must not be used i n a DATA-section containing only one data
point. Though t h i s i s generally correct, there are cases t h a t , for example,
a certain flag may be given in several subentries of which, incidentally,
one contains only one data point. The Manual page VIII.4.4 should be corrected accordingly.

53
Recommendations

Recommendations about Cinda
Nrot o whom

Recommendation

1

allProceedings of neutron physics conferences andneutron physics progress-reports should possibly
have a Cinda-type index; i f such documents i n clude also non-neutron data, i t should "be considered t o index also these i n a Cinda-type form*(Note: This recommendation i s supported by NEANDC)
See also Action 38

2

CCDN andall

Cinda being an alive f i l e , from which frequentr e t r i e v a l s are made, should be updated frequently
and not only at book-production time. I n area 2,
at l e a s t journals and conference proceedings
should be covered within the Center

Miscellaneous recommendations
3

allData centers should encourage data users t o spend
an appropriate time at t h e data-centers for mutual
acquaintance and benefit

4

NDS

To investigate with outside firms and CPL toadapt Exfor programs for use at other centersand computers

Recommendations about Photonuclear Reaction Data
5

The photonuclear research group of FEI Obninsk
i s encouraged to compile their data in Generalized
Exfor format and provide them to the data distribution
centers (NDS,CCDN*NNDC). Cooperation with CJD and/or CAJaD, where necessary computer programs arein operation, i s recommended. The compilation
activity may start by sending a l i s t of data setsor references to be compiled

6

The Nuclear Reaction Data Centers wish to encourage
also other photonuclear research groups to compile
their results in Generalized Exfor format and toprovide them to the Four Centers for dissemination
to interested users,, At least, large data tables
should be made available on tape in an Exfor-similar
structure, e.g. using data fields in FORTRAN E-11
format.

7

Bibliographic information on photonuclear data
would preferably be included in the exchange of"Recent References,, information. The Japanese
representatives are encouraged to promote Japanesereferences on jjhotQnuclear data to be reported
in any aconvenient format to NNDC and CAJaD/LIJaF.

54
Recommendations
Recommendation about future URDC Meetings
Hr e

Who?

What?

8

IAEA

It is recommended that the Agency continue tosponsor meetings of the nuclear reaction data
centers and should make it possible that technicalstaff and center heads meet regularly at intervalsof 1 or 1 1/2 year.

55
Resolution.
RESOLUTION
Subject; The unit of the "barn" for nuclear cross sections
The Second IAEA Consultants , Meeting of Nuclear Reaction Data Centers,
which took place in Kiev, USSR, from 11 to 16 April 1977,
representing the major national and international Nuclear Data Centers
and their communities of measurers and users of nuclear reaction data,
took note of the EEC Council Directive of 27 July 1976 (published in
the Official Jounal of the European Communities No. L 262 of 27.9.1976,
pages 204 ff» see Table 11) which, among others includes the Directive
to cease, with effect from 31 December 1979 at l a t e s t , the use of theunit of the "barn". (See Appendix 13.)
The meeting opposed to t h i s Directive with the following arguments:
1,
The unit of the "barn", despite of having the dimension of an area
does not represent an area but rather a likelihood (so-called "crosssection") for the occurrence of a nuclear reaction or atomic collision
process under certain conditions.
2O The unit of the "barn" i s part of the metric system, and hence
there i s no need to change i t .
I t i s used world-wide, exclusively and uniformly for cross-sectionsof nuclear reactions and atomic collisions, and hence i t s abolishment does
not contribute to uniformity of u n i t s .
I t i s , together with i t s multiples and submultiples (microbarn,
millibarn, kilobarn) optimized for the dimensions of nuclear cross-sections,whereas the units proposed to replace the "barn" are impractical and apotential source of errors.
For example, the important thermal fission cross-section of uranium 235
of about 585 barns would become 58 500 fto or 0,0585 pm^« The majorityof nuclear data would assume numerical values of similar inconvenience.
Lectures and discussions in nuclear sciences, where cross-section values
must be quoted frequently, would become considerably less comprehensible.
3.
The meeting was not aware of any body representing the field of
nuclear sciences that had been consulted about the "barn" before the
Directive had been issued. Indeed, the Directive to abandon the "barn"
i s, not in agreementwith the 1977 edition of "Le Siysteme Internationald Unites (SI)W by the Bureau International des Poids et Mesurese
4» Participants of the Meeting had been informed by many nuclear s c i e n t i s t s
and committees, that the Directive to abolish the unit of the "barn" i sregarded as unfortunate. Two resolutions, issued by the Nuclear Energy
Agency Nuclear Data Committee (NEANDC) and by the US Cross Section Evaluation
Working Group (CSEWG) are attached. The l a t t e r one indicates that thesystem of SI units i s likely to loose i t s international recognition i f the
Directive of abandoning the "barn" were not revised. (See Annexes toAppendix 13.) - Note by editor: Subsequent to the Meeting the INDC
issued a recommendation on the same topic which i s also included inAppendix 13.

56
Resolution
Recommendati on
Having in mind the arguments presented above, the Meeting recommends that,with reference to above-mentioned Council Directive and i t s Annex, theunit of the "barn" "be removed from Ta"ble 11, and that i t be entered insteadin Table 1.4»2 (headed "Special names and symbols of decimal multiples andsubmultiples of SI units which may be used only in specialized fields")
by the following entry:
Quantity
Unit name
Unit symbol
Unit value: Nuclear "cross-sections": barn:b: 1 b = 1O~ 28 m 2

It is also recommended that, with reference to the 3rd Edition of "Le
Systeme International d'Unites (SI)" by the Bureau International des Poids
et Mesures, the unit of the "barn" be removed from Table 10 (Units to be
maintained temporarily with the SI), and that it be entered instead in
Table 8 (Units to be used with the Si).

57
Continuing
Actions
Continuing Actions
from the 1976 Pour-Centers Meeting
The numbering i s the same as i n INDC(NDS)~78 pages 33-37.
UΓ.

ActionWho?
allcentresa d v i s e C i n d a - i n d e x e r s t o i n c l u d e i n t h e comments"HDG" whenever a p p r o p r i a t e .

10

CJD

p r o v i d e NDS w i t h coverage c o n t r o l - e n t r i e s o f
Soviet laboratory-reports,,

18

all

centresreview the lab-dictionary and provide NDS withinformation and cross-references about related
labs and codes for inclusion in the Dictionary.

20

all

centresexchange views and information about existing
practice in style and content of comments in dataindex lines.

21

CCDN

retrieve from Cinda, by area, the N3N and the
FPG entries and send them to the centres responsible.

28

CCDN

investigate how "neutron" as a target can be entered in Cinda, and to contact NDS how this would
affect the book printing programme.

33

all

(continuing action 44 from 11th 4C-meeting) toinform other centres about documentation ofevaluations and about evaluations or comparisonsof available evaluations going on within thecentre's area.

34

all

(continuing action 43 from 11th 4C-meeting)try to get from users feedback information on
status and quality of evaluated data f i l e s .

37

all centres

to provide the other centres with any information
available about which types of data were never orrarely recpiested and whether preliminary data areneeded by customers.

42

all centres(action 31 from 11th 4C-meeting continuing)
compare the translated SCISRS-I data (50000 and
80000 series tapes) with regular Exfor entries andcommunicate correspondences. Continue to clean up
the 50/80 000 series.

47

NHDC, CCDN,
KDS

for the time being tapes sent to CJD should startwith a short dummy f i l e .

58Continuing
ActionsNΓ.

Who?

Action49

a l l centres

when quoting e r r o r s , include i n 4C-Memos precise
reference to the EXFOR-Manual.

54

a l l centres

send suggestions for reports t o Tse referred t oin the LEXFOR Manual t o HNCSC.

56

a l l centres(action 2 from 10

NDS

4C-meeting continuing)(a)Centres having received specialized compil a t i o n s i n any format should signal t h e i rexistence t o other c e n t r e s .

0>)Inform i n t e r e s t e d centres of any significant

changes in EXFOR,
57

a l l centres(action 29 from 10
4C-meeting continuing)
Requests from other centres should "be acknowledged
within a few days of r e c e i p t , giving a d e t a i l e d
s t a t u s for each request, including w no data a v a i l able , , i f applicable.

58

a l l centres(action 30 from 10
4C-meeting continuing)
Inform the other centres when i n i t i a t i n g a data
review or special-purpose compilation, so t h a t
appropriate data may "be transmitted with preference.

59
Actions
NND
Actions
Miscellaneous actions on HMD
Nr.

Who?

What?

1

NDS

Send comments t o COM on t h e u s e o f t h e Crouch

Library of experimental fission product yields(Compare Memo 4C-2/89).
2

allChange NNCSC to NNDC in addresses( = National Nuclear Data Center)3

NDS

To provide data request and dissemination s t a t i s t i c s for 1976> as £ar as possible

Marcinkowski

Send his Exfor compilation of europium data to
NDS on magnetic tape when ready

NND C e n t e r s

Send available europium data, in. particular Neudada
data not yet in EXFOR, to NDS -for forwarding toMarcinkowski

NDS

Make sure that the chairmen of the technical subcommittees of INDC and NEANDC send the l i s t ofreviewers and their data-review topics to the Pour
NND Centers

NDS

Report to INDC the concern of the Four NND Centersabout the late publication of INDC Meeting-Minutes
causing undue delay in the information of theCenters and their related actions

8

NDS

Distribute to other data centers l i s t of actions
from INDC Meetings as soon as possible

9

allTo satisfy continuously the standing data requestsof data reviewers of INDC and NEANDC technicalsubcommittees

Actions about CINDA Improvement
10

CCDN

Add to CINDA Manual instructions on data index
lines

11

CCDN

Investigate to write a CINDA entry duplication checkprogram. If possible, supply other centers withretrievals of duplicate entries from their areas

12

NDS

To send CJD CINDA retrieval of entries for USSR
labs with accompanying discription of clean-up
operations to be performed

13

CJD

To do the clean-up for USSR entries

60
Actions
CINDA
NΓ.

Who?

What?

14

CJD

To provide complete and regular coverage for
USSR preprints and lab-reports, at least forreport series or even single issues easily
available to CJD

15

all

Review existing CINDA blocks whether theycorrespond to existing rules, whether CINDA and
EXPOR main references agree, whether the energy
ranges in CINDA and EXPOR agree e Top priority
should be given to blocks of current EXFOR data

16

NNDC

(action without deadline) to block and index
the 50 000 series

17

all

Check and revise the remaining automatic Neudada
index lines (having comments of the type "1 dataindex line")

18

all

To revise the comments for "NXN" entries tospecify "N3N" etc

19

CCDN

Retrieve. PPG entries from Cinda and distribute
retrievals to other centers

20

all

To prepare FEB entries where necessary

21

CCDN

To review rules about no-book flags and submit
a 4C~Memo about t h i s topic

22

CCDN

To avoid "lonely* , data index lines in CINDA

I

Actions about CINDA Manual and Dictionaries
23

allReview the CINDA Manual submitted by NDCC andsubmit comments to NDCC within 4 weeks

24

CCDN

(continuing) transmit CINDA Manual up-date pages
whenever a new 4C agreement has been reached

25

NDS

To send 20 copies every 3 months of up-datedlab and reference disctionaries to NDCC for t h e i rexternal CINDA indexers* Compare Conclusion 16.

26

NDS

To include in the Exfor/Cinda Dictionary system
the Dictionary of CINDA quantities

27

CCDN,NDS

To review the f e a s i b i l i t y of Memoaiming at unifying ref-type codes in CINDA and
EXPOR, I f no objection i s received within 4
weeks after the meeting, Memo 4C-I/H6 i s regarded as accepted

Actions about CINDA publication

28

NDS

To collect information about page-number andSales p r i c e Of a 4
onA
and ^"" miiMml
ai+-i rra
cummulative

61
Actions
CIKDA
Who?

What?
supplement to CIKDA 76/77 for 1978 and informthe centers and organizations concerned including IKDC and KEAKDC

30

KDS

To submit a new proposal for an archival CIKDA
issue in 1979, including price estimates and number of copies to be printed, as soon as possible

allTo think of any other technical details about
the Cinda archival issue to be timely considered
before the next 4C-Meeting

Actions about CIKDA statistics and coverage control
31

CCDN

To try to extract from CIKDA, as far as possible,
other meaningful statistics

32

CCDK

To provide HKDC and HDS with latest status of
instructions for input to coverage control system,and to include them in the CIHDA Manual

33

KDS

To submit the KDS coverage list on punched cards
to CCDK and to start making use of the "modify"
operation for these coverage control entries

34

CJD

To study the CIKDA coverage for USSR literature
for the period before 1969

Actions on CIKDA programming

35

COM

(continuing action) to improve in the CIKDA
programs the treatment of "main lines" (asdiscussed earlier) and inform other centers in
4C-Memo36

CCDK

To provide in CIKDA programs that the neutrons
as a target can be entered, and inform KDS intime before the next book production so that KDS
can adapt the book production programs accordingly

37

KDS

To provide in the book production program afeature that not more than one data tag per blockis printed. This tag should preferably be in thefirst line of a block, but could alternatively,
also be in the last line of a block. If thisprogram change is not possible, consult back with
CCDK

Miscellaneous actions on CIKDA
38

CJD

To include in the proceedings of the 1977 Kiev
Conference an index in CIKDA format(see also Recommendation. 1)

62
Actions
NND
NΓ.

What?

39

To remove from CINDA data index lines forsuperseded data (see also Conclusion 5) .

40

NDS

to inform CJD about treatment in CINDA ofpreliminary preprints and final reports, inparticular in the case of JINR.

41

NDS

Change a Conference Dictionary 71ALBANY" to"71AIBANY",

42

all

To remind compilers that using a new code before
its formal adoption, is at the risk of theoriginating center, which may have to change thecode in the case that it does not find 4C-approval.

M

Action on Wrenda

43

NDS, INDC

To consider that WRENDA publication schedule is
now out of phase with schedule of US request
list. The US schedule, where the collection of
information to be included in the request list
starts in the fall of every even year, will not
be changede This situation suggests that INDC
reconsider the schedule for the next WKEHDA
editions.

Actions on neutron data

44

CJD

When releasing new evaluated data send them toall other centers directly

45

NDS

Forward the recent USSR evaluations (He-3 et al)
to CCDN and NNDC

46

CCDN

Continue to send regularly (e.g» half-annually)
the EXPOR exchange statistics to the other centers

47

NNDC
CCDN
NDS

Until further notice from CJD continue to send
to CJD data on 7-track-tapes but increase thedummy file in the beginning to at least 100
records

48

CJD

To inform other centers when CJD is ready toreceive 9-track tapes in 800 b.p«i. (Note thatafter this date the EXPOR data exchange will entirely use 9-track-tapes)

49

NDS

To delete from the 70 000 file all entries thathave been transmitted as regular EXPOR entries andtransmit the remaining 70 000 file to the othercenters

50

CCDN

Submit a new Protocol Section on the Cinda cooperation of the Four Centers as soon as possible

63
Actions
Misc
Hr.

Who?

What?

51

HDS

To propose a priority l i s t of important data to
t e compiled fast and at 100$ completeness andsend i t for comments to the other centers. Amongothers t h i s l i s t i s to include resonance parameters
for a l l nuclides (as "being needed for nuclear
systematics).
I t i s v i t a l that such data are completely compiled"before they are requested "by customers.

MDC

To provide a l i s t of references found missing i n
Crouch's Library of fission-product yield data
to the other centers for t h e i r compilation

53

CCDIT

Write a Lexfor entry on the compilation ofderived values such as resonance integrals andfission spectrum i n t e g r a l s . (Such data are considered as evaluated data i f they are "based on
more than a single experiment.)

54

KHDC

Inform the other centers of t h e i r foreign d i s tribution of the HNCSC Newsletter. (NNDC will
accept additions to t h i s distri"bution l i s t fors c i e n t i s t s with real i n t e r e s t . )Miscellaneous Actions

55

KDS

To include in the Minutes a list of data centers
participating in the Exfor data exchange

56

CCDN
HKDC
CAJaD

Inform HDS and other interested centers about
any progress with data "base management systems,
and distribute relevant meeting materials andother literature which might "be of interest todata centers

57

HDS

To include on the Agenda of the next HKDC Meetingthe topic of data base management systems

58

HDS

To draft a statement against the CEC Directiveof abandoning the "barn" and to give it appropriate distribution.

59

HDS

to distribute all Meeting materials to theparticipants immediately after the Meeting(Action fulfilled 25 April 1977).

65
Actions
CEND
Photo ND
Actions on CPKD
NΓ.

Who?

What?

60

KACHAPAGf
a n d CAJaD

To aim at agreements on the scope of data
handboolcs to be published and to compile
relevant data with high priority

61

IAEA

To support the foundation of a Japanese CPND
Center (see l e t t e r by Glubrecht end of April
1977)

62

CCDN
NDS
CAJaD
et al.

The data distribution centers should immediately
communicate to MDC how many copies of the CFND
bibliography they require for distribution, andshould later submit their address l i s t s of distribution e

63

NNDC

To inquire about the possibility of a cumulative
issue of MacGowan's CPND bibliography up to
1 Jan 1976. (See CP-C/22 of 77/9/15)

64

NNDC

To distribute the Report on the US Panel on ""Reference Nuclear Data to HUD, CPND, NSDD Centers

65

MDC

To inform Mr, Munzel about the next Panel on
Reference Nuclear Data

66

Seeliger

To inform relevant institutes in the GDR of theinternational data compilation and exchange
efforts

67

NDS

To send the Kachapag f i l e to Vasiliu

68(cancelled)

Actions on Photonuclear Data
69

photonuclear
group, NDS

Exfor entries on photonuclear data should besent to the data distribution centers. I n i t i a l l ythey could be sent to NDS for further distribution

70

HDS

Provide Vasiliu with Berman's photonuclear data
Library

66
Actions
EXPOR
Actions on Dictionaries

NΓ.

Who?

What?

71

NDS

when updating Dictionaries of lab andref-codes check hack with the responsible
center72

NDS

t o continue transmitting Dictionaries
at l e a s t every t h r e e months, Tsut more
often when there are significant changes

73

KDS

t o introduce separate d i c t i o n a r i e s forp a r t i c l e codes for each relevant REACTION
subfield

74

NDS, NHDC

t o change i n D i c t i o n a r i e s 2 and 19, and i n
t h e Manual, t h e meaning of t h e keyword "N-SOURCE"
t o "Source of i n c i d e n t p a r t i c l e s or gammas".

67
Actions
EXFOR
Actions on EXFOR r u l e s
Nr.

Who?

75

NDS

t o prepare a revised "Brief d e s c r i p t i o n of EXFOR"
based on t h e Generalized Exfor, f o r distri"bution
t o d a t a c e n t e r customers, with t h e aim of informing
experimental nuclear p h y s i c i s t s of t h e p r i n c i p l e sof Exfor, so t h a t they can i s s u e t h e i r numericalr e s u l t s on magnetic t a p e i n a format close t o Exfor.

76

NDS

to currently inform interested scientists of latest
revisions to the Exfor system.

77

CCDN

write a Lexfor entry on the compilation of derived
values such as resonance integrals and fission
spectrum integrals. (Such data are considered as"derived" values only i f they are "based on a single
experiment; if they were "based on more than one
experiment they are considered as "evaluated" data.)

78

KAGHAPAG

to investigate how to merge in KACHAPAG tapes
entries originating from different data centers,such that entries are in ascending order in eachfile, (see Memo CP-B/13 of 77/?/£ p.1)

79

all

to comment on memos CP-D/20 and CP-D/23

80

all

to send to CAJaD programs and documentation on
checking the coding under REFERENCE

81

HDS

to retransmit entry 30139 (partial reactions throughexcited states of Li-7) in REACTION formalism

82

KHDC

to prepare a Lexfor entry on the definitions ofspallation and fusion

83

Grigorian

to check whether there i s a USSR National Standard
for the transliteration of Russian into Latincharacters

84

all

to review the proposed new keyword MONIT-REF andi t s coding rules and submit objections, if any,in a CP-Memo soon

85

CAJaD

to prepare a Lexfor entry defining for which kindsof data the monitor i s not relevant

86

all

to investigate the programming difficulties which
may result from extending the formalism of "variable
product nuclei" to reactions other than fission
and spallation

87

NDS

to write a memo on the use of the status code
COREL

What?

68
Actions
Misc
Actions on Bibliography
JTr.

Who?

What?

all

To s u b m i t comments on t h e HHDC B i b l i o g r a p h y on
i n t e g r a l CFHD.

89

all

To submit to MHDC distribution l i s t s for the
CHJD Bibliography

90

HDS
HKDC

To investigate possibilities for unifying thereference codes i n the different bibliographic
systems and to put this topic on the agenda of thenext Meeting on Nuclear Structure and Decay Data.

KDS

To circulate to other centers Mr. Gadjokov,sfinal proposal on data tagging in IMS.

Behrens

To circulate results of "Recent Referencesn/IMIS
comparative analysis.

CCDN

To send Cinda profile for MIS retrievals to
MDC and CJD.

93

Actions about next Meeting
94

Schmidt

To circulate possible dates for the next MRDC
Meeting in Paris/Saclay

95

Schmidt

To investigate about the financial aspects offuture MEDC Meetings

69
App.

A P P E I D I

CES

See on page 4 for al i s t of Appendices

71
App*1
CJD
Appendix 1

THE

CJD

PROGRESS REPORT

1. After the 12 th 4C-Meeting the CJD has transmitted
the tapes 4026 - 4028, which contain 40 works. Other 50 works
are in process of putting on magnetic tapes and 50 works arecompiled. Thus the status of compiling into EZPOR is as fol lows:
PeriodTotal

Trans: mitted

1965-1976

490

:

321

In process

Data onrequest100

69

During the period under review there were some technicaldifficulties connected with the CJD*S computer operation. This
did not allow to use the EXPOR checking program and also delayed the transmission of magnetic tapes*
2. Prom the middle of 1976 the CJD began to develop the
EXPOR programmes in PL/1 for the EC-1030 computer; the primary programmes have been written. The CJD*s programmers took
part in developing the programmes which allow to transmit aninformation from the M-222 computer to the EC-1030 computer*Now the CJD is ready to exchange of nuclear data withother centres on the 9-track magnetic tapes.
3. After the 12-th meeting the CJD has sent to NDS theevaluated data for Pu-238, Am-243, Cm-244, He-3, He-4, Pu-24O#
The report on the Pu-240 evaluation has been sent to NDS, thedetailed description of the evaluated data of Pu-238, Am-243»
Cm-244 has been published in "Wuclear Constants" N«23* The
compilation "The Nuclear Physical Constants of Y* -Emitting
Isotopes of Reactor Technology Materials" (Supplement to "Nuclear Constants,, JB22) and the work "Neutron Cross Sections of
Natural Erbium and Its Stable Isotopes ( group constants)"(Supplement to "Nuclear Constants" NS21) have been published*72
App. 1CJD- 2 A method of the evaluation of the particle emission spectra of the neutron and proton induced reactions has been developed. The recommendations on using the theoretical model description of the direct reaction cross section for the analysis andevaluation of nuclear data has been developed too.
The evaluation of the (n,p), (n,et), (n, 2n) reaction
cross sections for some isotopes and evaluation of some reac tions for the Na, Al, Ca, U-238 inelastic scattering cross sections of are carried out.
4. During the period after the 12 th 4 C - meeting the
CJD has published "Nuclear Constants NN? 21, 22, 23 the two
supplements and collections of abstracts NHS22, 23*
5» In 1976 the CJD answered the 125 requests on nuclear
data:
on documents- 40
on evaluated data - 65
on experimental
data
- 20

73
App, 1CJD

Appendix 1, Annex a.

Content of TRANS 4028

*
*
*

9

9

1
2

3
4
5
6
7
8

9
10
11
12

13
14
15

V

0

*
*

40330
40352
40378
40389

Belanova
Fomushkin
Pomushkin
Skovorodkin

AE,37,437,74
YPI-19,9,74
YPI-21,7,76
AE,35,409,73

40395
40398

Babenko
Zakharova

YP,10,233,69
YP,18,710,73

40406
40407
40408
40412

Gochberg
Fomushkin
AlchazovPoletaev

YPI-22,10,76
YFI-22,11,76
YFI-22,12,76
PEI-274, 76

40430
40431
40434
40435
40469

Belanova
Panitkin
PomushkinAE,38,430,75
AE,39,17, 75
AE,39,295,75
AE,39,291,75
Lowell-76

BergmanKalebin

EH,RESOS

HF
HP
HP,YLD

Cf-249
Cf-252
Am-241,

Pu-241
Ra-226
HP
HP
U-233,
U-235
HP
Pu-244HP
Pu-244HP
U-235
ALP
U-235,
Pu-239
EH,RES Ta-181
U-238
HG
Pu-240HP
ALP
Pu-239
EH,RES Lu-175,
Lu-176

Appendix 1, Annex b«of

The l i s t works being processed in CJDNPirst author

1
2

Nesterov
R^abov
Broder

3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21

Bak
BabenkoNikolaev
Petrzhak
MuradjanAndreev
Kbitek
Dovbenko
Vorobjeva
Aldea
Karzhavina
Dvuhsherstnov
Belanova
Doilnitsin
Savin
Belovitskiy
Aleksandrova
Pojarkov

Reference
YP
4
AE
24
FEI-1155
PEI 8
YP 11
KIEV 2KIEV 2
KIEV

r

YP

15

KIEV
KIEV

2

3
YK 15
YPI 17
YPI 17
YPI 19AE 37
PEI -- 678
PEI 20LENINGRAD

AE
YP

38
21

Reaction

5 399
4 351

66
68

69
69

17
1006

70

309
5 856

71
71
71
72

85
44

160
138

3
28

30
4
437

11
348
2

108

3 468

73
73
74
74
74
74
74
75
75
75
75
75

NP
ALP
NP, DNG
RIP
NP
SPY
NU BAR
ALP
DNG
NA
NG
NU BARNG
RES
ALP
EN, RES
TOT
NNP
NP
NP
SNG

Elements
U-233,235; Pu-239
U-235, Pu-239
P, Co, Sb, Ta
U, Pu, AmRa
Pu-238,239,240
Cf-252
Pu-239Rr-141, Mo-165
Nd-143
Zn-68
U-238; Pu-240,241
Sm-147
Cd-111,113; Gd-157; Dy-161,163
U-235
Os-187, Os-188
Pe-58
Al, PeSb, BiPu-239, U-235o>^0-16, C-12
*l^

o\

-2-

N

First author

Reference

22
23
24

Vertebny
Karzhavina
Karzhavina

YP
YP

22
22

KIEV

3

25
26
27
28
29
30
31
32

NurpeisovSelanova
Zhuravlev
Gavrilov
Vertebny
Bfostovaya
Zhuravlev
Balabanov

AS
AE
AE

39
39
.39

KIEV
KIEV
KIEV
KIEV
KIEV

3

33
34
35
36
37
38
39
40

Fursov
Kondurov
GangrskyLebedev
BiryukovAleksandrov
Baryba
Gpvor

KIEV
KIEV
KIEV
KIEV
KIEV

AE

3
6
3
4
6
6
5

4
4

39
PEI - 671
;PEI - 21

Reaction

4
1

674 753 75
229 75

LDL
RES
STP

3
5

199
369
285
229
151

NU BAR
EN, RESHP, RIP

4

75
75
75
75

75

76 75
229 75
60

n

3
97
245
187
113
137

75
75
75
75
75
75
76
12 76

STP
TOT
UP
STP
NA
NP

m
NP
SCAT

DIN
NP
DIN, (N,2N),(H.3JQ
DIN

Elements
Os, PtDy-161, Dy-163
Nd-143,145,147,149;
Gd-155,157; Dy-161,163;
Er-167; Yb-173; Hf-177,179
U-233, 238j Pu-239
Om-244,245,246,248
Pu-239; Am, Cm, Cf-249
Am-241,243; Bk-249
Cf-249U-235
U-235, Pu-239
Pd-105, Sm-149, Gd-157,
Yb - 171
Pu-239, U-235
U-235, Pu-239, Of-252, U-233
U, Pu, Am
Al, PeCr, Pe, Co, Ni, Y
Al, Si, CI, K, Cr
U-238
Pd- 104, 106

- 3 :First author
41
42
43
44
45
46
47
48
49
50

Demidov
Lebedev
Pshenichny
Demidov
RazbudeyRazbudeyRazbudey
Ivanov
Anufriev
Adamov:

Reference
YPI - 21
YFI - 21
YPI - 21
Baku-76
YPI - 22
YPI - 22
YPI - 22
LowellLowellYPI - 22

t

12
15
29
84
19
21
22

14

76
76
76
76
76
76
76
76
76
76

Reaction
DIN
DIN
ETA
DNG
TOT
ABS
TOT
EN, RESEN, RES:

Elements
Mo-92
Al, PeU-233
Cd-114 , 116
Eu-152 , 154
Eu-152
Eu-153
Th-230 , Ra-226
Cs-133 , Cs-134
TJ-235, U-238

o

79

App. 1
Appendix 1, Annex c .
Recent Neutron Nuclear Data Evaluationsin the USSR

The evaluation of the ^ U capture cross sections in
the neutron energy range 0.001 • 7 Mev and the evaluationof the 197Au capture cross sections in the neutron energyioorange 1 - kev have been made in Dr. Tolstikov^ group (FBI,Obninsk)•The Prof. Brikolaev*s group (PEI, Obninsk) is going tocomplete the evaluation of full file for oxygen this year;
the evaluation of fission product cross sections are carriedout and the group constants for the main fast reactor mate rials are revised.
The evaluation of full nuclear data file for ^ Pu
nas been carried out in Minsk. Late in 1977 Dr.Konshin*sgroup plans to complete the evaluation of full file for ^"Pα
They have developed a number of programmes for fissile nuclei
cross section calculations.

Appendix 2
CCDN

PROGRESSREPORT TO THE

13TH 4-C

MEETING

81
App.2
CCDN

Kiev, llth-16th April, 1977

I.

GENERAL SITUATIONThe CCDN's situation has been affected by the decision, taken last
October by the NEA Steering Committee, to postpone the settlement of theamalgamation of CPL and CCDN until April, 1977. In accordance with the new
structure which had to be laid down, the post of Head of the Centre, vacantsince the end of October, 1976 has not been filled; this has somewhat restricted certain activities started at the beginning of 1976.
The conversion work corresponding to the preliminary phase of theamalgamation of the two centres has been partially realised, especially withregard to the possibility of using a Data Base Management System and the studyof the computer facilities necessary for such a modern system of data filehandling. The results of the preliminary investigations into the DBMS field
will be presented at this meeting.
The traditional mandate of CCDN in the neutron data field has been
pursued in rather good conditions.
II. EXPERIMENTAL DATAA.

Generalities on the compilation of data

Due to the shortage of physicist personnel during the past 2 or 3
years, the main compilation effort was concentrated on the large set of data
(total, capture and fission cross-sections of heavy elements; total andcapture cross-sections of structural material nuclei etc.,) of great importanceto users, to the detriment of a systematic scanning of all the data available
in the laboratories. This systematic scanning, performed from a file based on
the progress reports of the laboratories, has now been completed for somecountries, and is being actively pursued.
The Progress Report last year mentioned some relatively recent data
(posterior to 1974) which had not then been compiled. This backlog can now be
considered as absorbed because it will disappear with the systematic scanningmentioned above, and data having a priority character are compiled as they
arrive at CCDN. However, it must be pointed out that some laboratories are
reticent to send us their data; more than 50% of the CCDN's letters to physicists
remain unanswered, and only half of the replies contain tables of experimental
data.
Two types of experimental data have been somewhat neglected in thepast : the energies and intensities of the gamma-rays following neutron capture,and the fission yields. The latter are regularly compiled by E.A.C. Crouch at
Harwell (U.K.). The CCDN has perfected a system of programs which allows
these data to be translated into the NEUDADA and EXFOR formats as well as
producing suitable output for users. The corresponding file will be regularly
updated by the Harwell group and is available via the CCDN, in agreement withthe authors, for all users within the 4-Centre network. The utilisation of the
CROUCH file is an example of the co-operation between the CCDN and national
evaluation groups.

82
App.2
CCDN
As far as the gamma-ray spectra data are concerned, one has toevaluate to what extent these data are compiled within the framework of theinternational effort in collection, evaluation and dissemination of the
Nuclear Structure and Decay Data (NSDD). The CCDN is already in contact withthe group at Jiilich (which is a part of the international network in the NSDD
field) which compiles the gamma-ray data. The results of this compilation could
be handled at CCDN, after agreement with the authors and made available within
the 4-Centres, in a similar manner as the Crouch file.
The compilation of both fission yields and gamma-ray data constitutes
a field in which there is a significant overlap between pure neutron physics, theprincipal affair of the CCDN, and charged-particle physics. Handling of theabove-mentioned files could be the first step to an eventual broadening of the
CCDN's activities.
B.

The data which have been compiled

Approximately 150 works, concerning especially cross-sections, resonanceparameters and resonance integrals, have been compiled during the period
May, 1976 - January, 1977. Part of these data have not yet been exchanged in
EXFOR; four EXFOR tapes, corresponding to 60 references and 600 data tables, areawaiting a final verification. The number of data points is relatively small;this is a consequence of the systematic scanning of less important work as
mentioned above.
C.

Data to be compiled

From the progress reports of the laboratories, we have evaluated thenumber of experiments completed but not yet compiled, plus those which are stillin progress. The total number is approximately 150, so the volume of compilation
for the next year should be roughly the same as last year.
D.

Data received from the other Centres

Since 1st May, 1976 the CCDN has received 7 EXFOR tapes from the otherCentres. The translation of these tapes into the NEUDADA format was done without
problems. The most recent updating of the NEUDADA file was performed in February, 1977.
III. CINDA
Following the last, full edition of CINDA in July, 1976 (Vols. I and
II, CINDA 76/77), work on the CINDA file at CCDN has fallen into two categories :.
(a) updating the file by entering references published since'
March, 1976 and publication of the first supplement 76/77:
The number of new entries demonstrates a continuing growthof neutron physics litterature at the rate of approximately
15% per year. As yet, this trend does^ not show any sign ofdecreasing as a result of the harsher economic climate inscientific research.
(b) continuation of the work of correction, cleaning and blocking
of existing entries with a view to an archival volume in 1978, and forthe conversion of the computer file to a hierarchical data basestructure.

- 3 -

83
App.2
CCDN

Two series of extensive, systematic modifications have been made to
the existing CINDA file. Firstly, following a recommendation of the CINDA
Readers' Seminar and discussions between the 4-Centres, some modifications havebeen made to the CINDA Quantities Dictionary (code of neutron reactions).
Secondly, in preparation for the conversion of the computer file to a hierarchicaldata base structure, an effort has been made to unify diverse and irregularreference codes. This/has involved about 5000 modifications to existing records,
and will be finished shortly.
The review, correction and blocking of new and existing entries has
continued at CCDN. Everyone realises that a great deal of work must be done toobtain a perfect version of CINDA. The numerous imperfections in CINDA are
inherent in the nature of CINDA and in the large number of people who have been
involved in its elaboration. The CCDN is doing its best to ensure that theeventual 1978 archival volume will be as clean as possible. However, we must
realize that the amount of work to be done should not be disproportionate withthe expected results; the main criterion is the satisfaction of the users andthe imperfections of CINDA should be considered as minor in comparison to theimmense service that it renders to users of neutron data.
The problem of CINDA publication after 1978 has been considered at
CCDN. The cut-off date could be determined by examining the statistics on
CINDA entries presented in Annex 1.
The list of journals, reviews and reports to be directly scanned by
the CCDN CINDA Readers has been established in agreement with the readers. It
appears that the laboratory reports from some countries will not be completely
covered. However, we can expect collaboration from some IN IS indexers. The
CCDN staff will also use the INIS file by systematically scanning a retrieval
provided by the Central Library of the French C.E.A. at Saclay.
IV. EVALUATED DATA
The following files have been added to the evaluated data files
available at CCDN :(i) From CNEN, Bologna, an evaluation in ENDF/B-format for 12
fission product nuclei of the elements Zr, Ru, Ce, Pr, Nd and Eu.
(ii) The ENSDF library, i.e., the Evaluated Nuclear Structure DataFile;(iii) A library of 22 neutron dosimetry reactions by A.A. Lapenas,
Riga, USSR, in EXFOR format.
(iv) Russian evaluations of He-3, -4 and partial evaluations of Pu-238,
Am-243 and Cm-244, in SOKRATOR format.
(v) Resonance parameters for 26 fission products by P. Ribon, E. Fort,
J. Krebs and T. Quoc Thuong, C.E.A., France.
(vi) Library IV, a 50 group, 101 isotope library in CCCC-III format.
Multigroup constants generated from ENDF/B-IV.
V.

SERVICES TO CUSTOMERSThe number of requests is about the same as last year. Approximately
200 requests were recorded during the period 1st April, 1976 to 15th January,
1977 :

84
App e 2
CCDN

_ 4 -

45% for experimental data,
45% for evaluated data, and
10% of retrievals from the CINDA file.
VI.

DEVELOPMENTS IN PROGRAMMING AND COMPUTER NEEDSA.

Current work
The following work has been undertaken :(i) improvements in the EXFOR-NEUDADA conversion programs;(ii) a system of programs for the handling of the CROUCH file;(iii) final testing of the ZZ program (computerized CINDA coveragecontrol system);(iv) assisting CPL staff during a mission at Saclay;(v) assisting the staff of the Nuclear Development Division(test on the IBM 370/125 of the codes Fuel Cycle, NUFUEL, Fuel Cost);(vi) maintenance of the system (especially : generation of the
DOS/VS system, release 32).
B.

Work undertaken with a view to the implementation of the Data BaseManagement System (DBMS) and for the possible CPL-CCDN amalgamation1.
Although the amalgamation of the CPL and CCDN has not been definitely
decided, an important effort has been made at CCDN to realize a large part ofthe programme proposed for the preliminary phase of the conversion. The
aid of DBMS specialists has been procured and a training course for the CPL and
CCDN staffs was held in September, 1976 at Saclay.
2.

The work undertaken is enumerated in the following points :(i) A general study of the implementation of a DBMS. At thepresent time, the CCDN uses 123 files corresponding to 52 different
format structures, and 74 retrieval and maintenance programs. The
structure and relationships of all the information items were logicallyanalysed and a proposed integrated Data Base Scheme was drawn up;
a preliminary version of the scheme according to IDMS specifications
was established in consultation with an IDMS specialist.
(ii) Discussions and reflections on the scheme optimisation.
(iii) The generation of an IDMS system and the program CULPRIT("utilitaires" on IDMS) on the IBM 370/125 computer at CCDN; compilationof the schema.
(iv) A study of the general procedures for loading of theData Base;- 5 -

85

App.2
CCDN
(v) The writing and testing of :(a) the programs for partial loading of the "Reaction" andCINDA sections of the schema;(b) the corresponding retrieval programs.
(vi) reformatting of the files connected with CINDA, EXFOR and NEUDADA
with a view to the loading of all related information together
with their logical links and utilization modes.
(vii) conversion into EXFOR from the NEUDADA file of data anterior to1970 in order to integrate them in the Data Base. The Sac!ay
data have been converted. The work still to be done is important
and will be pursued in 1977 and 1978. Independent of the Data Base,
the realisation of this work constitutes an improvement of theinternational EXFOR file.
VII. PARTICIPATION IN INTERNATIONAL MEETINGS AND MISSIONS
1.

NEANDC/NEACRP Specialists Meeting on Fast Neutron Fission
Cross-Sections. Argonne, 28-30 June, 1976.
The CCDN participated actively in this meeting by performinga special update of the experimental data files for the elements
and cross-sections concerned.

2.

IAEA/OECD Technical Committee Meeting on Differential and Integral
Nuclear Data Requirements for Shielding Calculations.
Vienna, 12-15 October, 1976.
A contribution was presented by a representative of CCDN on "Agraphical comparison of cross-section evaluations for some structurematerials." Severe discrepancies between several evaluations werepointed out and some comparisons with experimental data were drawn.
The CCDN also participated in the discussions of the sub-group on"fusion reactors", for the establishment of priorities concerning
the needs of experimental and evaluated data.

3.

IAEA^Advisory Group Meeting on Atomic and Molecular Data for
Fission. Culham, 1-5 November, 1976.
The aim of this meeting was to identify the data needs for atomic
and molecular processes in plasma, and to discuss the establishmentof an international network of centres for the collection anddissemination of bibliographical and numerical data. A representativeof CCDN attended this meeting as an observer. The use of a filesimilar to CINDA should be considered for the compilation of atomic
and molecular data. It appears that the group headed byProfessor Delcroix at Orsay (France) have developed the mostsophisticated system in this field and collaboration between the
Orsay group and the CCDN should be envisaged for the future.

4.

International Specialists Symposium on Neutron Standards andApplications": NBS, Gaithersbury (U.S.) 28-31 March, 1977:
A session on Li-6 was organised within the symposium in collaboration
with the NEANDC. A representative of CCDN was invited to present a
review paper on the present status of the experimental data with aview to obtaining a solution to the disagreement raised by thereaction Li-6(n,alpha) cross-section.

87
Appendix 2

App.2

ANNEX 1CCM

THE CHOICE OF A CUT-OFF DATE FOR THE ARCHIVAL VOLUME OF CINDA(Peter Johnston)The choice of a suitable cut-off date for the separation of
CINDA into an archival volume and subsequent cumulative supplements depends on
the balance between the size of the supplements and the degree of overlap
between entries in the supplements and 'blocked, entries in the archival
volume.
The block structure in CINDA means that whatever the cut-off date,some blocks will exist, and will be created, with entries dated before andafter the chosen date. The statistical survey presented here is based on theassumption that only blocks with no entries dated after the cut-off date willappear in the Archival volume, and that all blocks with entries dated since
the cut-off date will appear in the cumulative supplements.
The alternatives of splitting blocks, or including the existing'overlapping' blocks in both the archival volume and the supplements, appear
less appropriate; the first owing to the loss of information, and the second
because of duplication (approximately 14,000 entries).

App.2CCDN- 2Table 1 and Figure 1 show a simple breakdown of CINDA, ignoring
the block structure, showing the number of CINDA entries for each publication date.
TABLE 1
Total entries January, 1977

138241

Publication Date

EntriesPublication Date

Entries

*
*

4755
7401
8725
10325
9321
9787
11067
8077
8004
7429
6653
7246
5205
3471
2958
3541
3684

1959
1958
1957
1956
1955
1954
1953
1952
1951
1950
1949
1948
1947
1946
1946

2176
4116
2607
1933
1620
570
728
515
577
628
455
151
353
118
1337

*

1976
1975
1974
1973
1972
1971
1970
1969
1968
1967
1966
1965
1964
1963
1962
1961
1960
incomplete.

before

89
App.2
CCDF

CINDA 23/2/'77

DATE
TOTAL

'76

'75
'74
'73
'72
'71
'70
'69
'68

'67
"66
'65
'64
'63
'62
'61
'60
•59

'58
'57
'56
•55

'54
'53
'52
'51
'50
•49
'48
'47
'46

AREA 4

AREA 1

AREA 2

AREA 3

NNCSC
55,388CCDN
34,761NDS

CJD

21,236

25010

Total

X-d

Total

X-4

Total

X-4

Total

2,406
3,084
2,297
2,261
2,647
3,105
2,739
2,373
2,527
3,100
2,670
2,950
2,426
1,662
1,722
2,259
2,654
1,313
2,788
1,503
1,311
1,027
452
602
394
469

569

1,822
2,101
3,174
2,952
2,129
2,158
3,154
2,383
2,167
1,729
1,839
1,777
1,089
933

714
175

693
733
1,051
3,041
2,138
3,044
3,504
1,690
1,097
888
672
644
415
334
222
195
176
86
34
35

245
129
132
263
357
257

439

485
478
331
308
153
25

742
625
464
420
518
448
273
275
95
108
120
98

478
409

147
47

96
324

52
28
12

104

938
146
103
324
87

34
129
19

1
1
8
3
1

412

X-4

1,116

38

1,742
1,696
2,121
1,407
1,590
1,559
2,176
1,630
1,461
1,774
972
486

210

242
431
340
354
740
627
308
176

1
-

221
156
126
158

90
App.2
CCDN

Table 2 presents a summary of the structure of CINDA blocks
for which the most recent entry is dated between January, 1972 andJanuary, 1975 (i.e. dates 72, 73, 74). The figures presented show thepercentages of entries in these blocks dated before the most recent
entry. For example, YEAR - 2 refers to entries dated 1971 in blocks forwhich the most recent date is 1973.

TABLE 2

Date

Most recent year
Year - 1
Year - 2
Year - 3
Year - 4
Year - 5
Year - 6
Year - 7
Year - 8
Year - 9
Year - 10
Before Year - 10

% of Total
number of entries
60.7
10.7
9.0

5.0
3.5
2.8
2.1

1.7
1.6

1.2
0.9
0.8

Cumulative % of entries
before given date

39.3
28.6
19.6
14.6
11.1
8.3
6.2

4.5
2.9
1.7
0.8

The numbers in Table 2 are derived from differences in"thenumbers of entries for each date found in retrieve tapes for eachpublication year. The percentage of 1971 entries in blocks for which
the most recent year is 1973 does not therefore include those 1971
entries which are in blocks for which the most recent publication is.
1972 or 1974. These figures can be simply inverted to predict for
instance that 11 percent of 1975 entries will be eventually blocked withentries dated from 1980 onwards, if the blocking philosophy remains
unchanged. It is by such a process of inversion that the figures forprobable duplication in Table 3 have been derived.

91
App.2
CCM
- 5These figures on the date distribution of CINDA blocks can beused to estimate the extent to which new entries in cumulative supplements
would be blocked with entries in an archival volume.
The following assumptions have been made :(1) the number of new entries to CINDA remains constantover the period 1978-1983.
(2) The date structure of CINDA blocks remains the same
as for the period 1972-1974.

TABLE 3
YEAR
Year of cut-off for theArchival volume(All blocks containing entries
earlier than the given date)
1970
1971
1972
1973
1974
1975
1976
(*)

PERCENTAGE DUPLICATION IN 1983
Percentage of duplicated supplement
entries dated earlier than the
cut-off, but included because ofblocking with 1978-1983 entries. (*)
2.3%
3.1%
4.6%
6.4%
8.8%
12.0%
16.3%

This assumes that all entries between the cut-off date and 1978
are already blocked with all appropriate older entries before
the separation is made into archival volume and supplements,'
so that all such blocked older entries do not appear in the archival
volume.

92
App.2
CCDN
- 6- This extent of duplication between the archival volume and the
supplements must be balanced against the increased size of the supplements
for earlier cut-off dates.

TABLE 4Cut-off date

1972
1973
1974
1975
1976

(*)

Archival volume
1st Supplement^*'
No. Entries
Pages
CINDA 1978
( 60/pagep
87,00096,000109,000
120,000
132,000

1,450
1,600
1,800
2,000
2,200

66,00056,00044,00033,00021,0005th Supplement^
CINDA 1982
116,000
106,000
94,00083,00071,000Estimated on the basis of the annual growth between 1970 and 1975.

On the basis of the figures in Table 4, a choice of date
between 1974, 1975 and 1976 would seem preferable. 1975 provides acompromise between excessive duplication and the size of the supplements,

The approximate conversion in Table 4 of numbers of entries
into the number of pages ( 60/page) is based on the figures for the
CINDA 76/77 books and does not take into account an increased use of
the 'no book flag,. The recent experience at CCDN has shown that thismay reduce the size of future books by between 10 and 20 percent;Number of
CINDA entries

10 4 l•L J
5xlO3 -I

Incomplete

,-J

1950

1955

.1960

1965

1970

Figure 1. THE NUMBER OF CINDA ENTRIES FOR EACH YEAR SINCE 1946.

1975

Date

(CINDA - JANUARY, 1977)oo- 8 94
App.2
CCDN
3xl(T

AREA 1
NNCSC

2xl(T
1...4

lxl(T

J"

EXFOR
1950

1975

1960

3x10^
AREA

2

CCDN

2x10^

1x10'

1950

1960

1970

1975

- 9 -

95
App.2
CCDN

AREA 3NDS

3xlO3 -

2xlO3 -

1x10'

S

r

J

_n
1950

EXFOR
1960

1970

1975

AREA 4

CJD
2xlO~

1x10"

EXFOR
1950

1960

1970

1975

97
App.3
Appendix 3
Progress Reportof
National Nuclear Data Centertothe Thirteenth Four Centres Meeting
April 11-12, 1977

I.

GeneralAs a result of the addition of responsibilities in the new areasof charged particle and nuclear structure data, on March 1, 1977 the
National Neutron Cross Section Center became the National Nuclear Data
Center (NNDC).

The organization of the center has remained unchanged.

Two new positions, one in nuclear structure evaluation and one in computer systems work were created.

One scientist has been shifted tocharged particle nuclear data activities from neutron data evaluation.
The center is planning a substantial upgrade of its present computer
system within 18 months in order to replace obsolete hardware and provide additionalII.

capacity for handling the center's new responsibilities.

WRENDAThe US

Request List entries were completely reviewed.

More than

100 new entries and numerous revisions were transmitted to NDS in WRENDA
format.
III.

CINDA
The center continues to devote approximately one man year to its
CINDA compilation function.

The neutron physics coverage for UnitedStates and Canadian literature has been kept current with frequent batch
transmissions to CCDN.

All new file entries are blocked when appro-

priate, and all e-ntries relating to EXFOR data transmissions, areblocked before the EXFOR tapes are sent to the other centers .
During the past year, special CINDA indiceshave been prepared forthe annual ERDA-NDC Status Reports, and the proceedings of 1976 Lowell
conference.

We are currently preparing the CINDA index for the 1977 ERDA-NDC Status reports and hope to prepare an index for the recent standards
conference at NBS.

98
App.3
NMDC
IV.

EXFOR
Experimental neutron data compilation and related activities continues to be supported at the two-man level.

During the past year, 97

new references have been compiled and numerous corrections made to existing entries.

This information has been transmitted on seven ex-changes tapes 1052 through 1058.
The old area 1 data has been converted to legal EXFOR format.
These entries differ from our normal EXFOR entries in that only a minimal SAN001 has been constructed.

All formal errors detected by ourchecking programs have been corrected.

As a final check on accuracy all

the original data sources are being compared with the contents of the
EXFOR entries.
task

Appoximately nine man-months have been devoted to thisand we forsee another six before completion.

Any missing data

sets especially in the areas of thermal cross sections and resonanceparameters are being added.
NNDC continues to maintain the EXFOR and LEXFOR Manuals on behalfof the Four-Centres Network.

Significantly more effort has been accorded

this activity because of the heavy flow of 4-C memos in the past year
proposing modifications to the EXFOR system.
V.

Evaluated Data
Work has begun on the assembly of ENDF/B-V with a completion datein early 1978 expected.

The standards evaluations have been completed

as has a preliminary actinide file.
Extensive programming effort has been devoted to the improvement ofprocessing and checking programs.
VI.

Customer Services
The,request service statistics for the period 1 January 1976 and1 January 1977 are attached.
Requesters may now receive data displays similar to those in BNL-325.
Vol II as we now can process requested data through the system developed
for BNL-325 production.

Two computation formats have been designed, andwill be implemented in phases.

99
App.3
MDC
VII.

Publications
A new edition of BNL-325 Vol II was published in July 1976 withcopies available at the 1976 Lowell conference.

Currently in press are

the 1977 ERDA Nuclear Data Committee Status Reports and ERDA-NDC Request List for Nuclear Data.

A report by N. Holden on the Isotopic

composition of the Elements is now being prepared.

We are now in theinitial phase of planning for a revision of BNL-325 Vol I, ResonanceParameters and Thermal Cross Sections.

lh

101
App.3
MDC
Appendix 2>, Annex a
ZAQ REQUEST STATISTICS
1 J a n . 1976 t o 31 D e c . 197 6
Area 1GAMMA & CHARGED
ELAS. IHEL. OTHER RES. NEUTRON PARTICLETOTAL SCAT. SCAT. SCAT. PARO EMISSION EMISSION FISSIONTOTALELEMENT (TOT) (EL) (INL) (C/S) (RES) (NG)
(NX)
(HP) OTHERS REQUESTS• • M M * *

1-H

4

9

1

2-He

10

7

3-Li

11

13

8

4-Be

4

3

5-B

14

6-C

2

16

3

3

6

1

30

11

6

30

36

6

121

2

3

5

8

6

3

34

12

6

5

33

26

32

15

143

12

14

7

7

17

33

14

8

112

7-N

3

2

1

10

3

4

1

24

8-0

5

4

2

17

9

10

1

51

9-F

3

4

8

5

1

21

10-Ne

8

2

11-Na

2

1

12-Mg

3

2

29

17

1

14

21

12

5

11

14

20

1

14

9

9

48

10

7

2

20

41

5

2

38

13-Al

2

1

14-Si

5

6

15-P

1

16-S

3

5

22

8

3

17-Cl

2

3

22

6

9

18-Ar

2

3

8

2

19-K

2

16

1

20-Ca

1

4

25

4

21-Sc

1

2

11

4

22-Ti

7

46

16

14

4

6

27

7

1

1

54

43
15

2

25

1

35

1

1

20

37

1

127

4

102
App.3
NNDC

GMMA & CHARGED
ELAS. INEL. OTHER RES. NEUTRON PARTICLETOTAL SCAT. SCAT. SCAT. PAR. EMISSION EMISSION FISSIONTOTALELEMENT (TOT) (EL) (INL) ( C / S ) (RES)
(NG)
(NX)
(NP)
OTHERS REQUESTS••MHaiMM

23-V

7

8

3

24-Cr

25

21

11

25-Mn

3

3

26-Pe

22

27-Co

16

14

6

48

61

21

1

11

11

1

25

16

63

28

25

6

6

5

2

12

31

28

28-Ni

39

36

15

11

118

61

49

29-Cu

2

5

3

5

29

23

25

30-Zn

4

5

1

18

11

25

31-Ga

4

4

26

8

47

23

7

7

12

32-Ge

4

4

57

2

5

198

9

1

40

1

180

1

4

95

1

4

334

4

96
64
42

88

2

33-As

1

1

34-Se

6

12

55

20

35-Br

3

3

13

9

36-Kr

3

5

2

11

4

30

8

4

14

8

1

28

1

19

14

4

38

47

20

2

19

13

37-Rb
38-Sr

1

39-Y

1

3

17

98

5

28
2

23
42

88

1"

40-Zr

9

9

41-Nb

4

4

42-Mo

9

9

43

2t

43-Tc

2

2

21

5

44-Ru

4

6

6

16

45-Rh

2

2

15

7

5

31

46-Pd

1

2

17

12

1

33

47-Ag

4

5

31

16

3

3

2
1

1

1

46
84

1
1

31
33

2

61

103
App. 3NNDC

GAMMA & CHARGED
ELAS. INEL. OTHER RES. NEUTRON PARTICLETOTAL SCAT. SCAT. SCAT. PAR. EMISSION EMISSION FISSIONTOTALELEMENT (TOT) (EL) (INL) (C/S) (RES) (NG)
(NX)
(NF) OTHERS REQUESTS
127

48-Cd

11

19

1

62

34

49-In

5

3

10

23

15

1

58

50-Sn

3

11

44

17

2

77

51-STD

7

7

36

20

1

71

52-Te

13

17

72

28

1

131

53-1

2

2

23

10

1

54-Xe

15

18

54

23

1

55-Cs

1

3

12

8

24

56-Ba

7

15

57

15

96

57-La

2

2

23

6

33

4

15

14

33
7

58-Ce

2

1

42
111

59-Pr

1

1

4

1

60-Nd

19

14

79

25

61-Rn

4

4

7

10

62-Sm

14

15

61

25

63-Eu

4

4

14

22

44

64-Gd

19

16

93

39

167

65-Tb

22

1

2

4

66-Dy

2

14

60

9

67-Ho

4

3

18

6

68-EΓ

12

12

59

11

94

69-Tm

2

6

8

7

23

70-Tb

7

20

54

16

97

71-Lu

2

2

9

4

17

138

1

25
2

3

4

1

121

35
85

1

34

104
App.3
NNDC

GAMMA & CHARGED
ELAS. INEL. OTHER RES* NEUTRON PARTICLETOTAL SCAT. SCAT. SCAT. PAR. EMISSION EMISSION FISSIONTOTALELEMENT (TOT) (EL) (INL) (C/S) (RES)
(NG)
(NX)
(Nff)
OTHERS REQUESTS
72-Hf

2

2

33

3

40

73-Ta

4

6

15

17

42

74-W

12

11

27

12

62

75-Re

2

4

24

5

35

12

48

1

61

21

11

7

1

3

22

76-Os
77-Ir

7

78-Pt

1

79-Au

4

6

2

1

4

3

80-Hg

9

9

4

1

1

1

1

90-Th

6

8

91-Pa

2

92-U

1

1

51

9
1

1

3

41

3
15

15

83-Bi
88-Ra

1

3

81-Te
82-

2

69

29

17

6

7

6

1

19

18

17

4

2

1

2

17
1

10

4

76

89-Ac

1

2

2

9

2

1

5

92-U-23O
92-U-231
92-U-232

6

1

2

27

4

44

5

2

8

3

32

29

90

1

15

5

12

1

92-U-233 4

3

92-U-2342

2

92-U-23598

92-U-236

2

4

1

2

10

6

89
19

21

194
39

105
App.
NNDC

GJ5MMA & CHARGED
ELAS. IHEL. OTHER RESO NEUTRON PARTICLETOTAL SCAT. SCAT. SCAT. PAR. EMISSION EMISSION FISSIONELEMENT (TOT) (EL) ( I N L ) ( C / S ) (RES) (NG)
(NX)
(NF)
1

1

92-U-238 9

1292-U-237

1

3

1

12

26

4

1

92-U-239

4294-Pu-238 4

3

94-Pu-239 8

7

94-PU-24O 2

2

94-Pu-241 5

594-PU-242 4

5

2

1

35

10

3

106

2

2

16

39

7

7

12

6

5

1

31

2

44

10

41

12

124

2

9

2

19

11

5

24

4

54

VJl

93-Np

TOTAL
OTHERS REQUESTS

6

1

35

1

13

36

1

94-Pu-244

1

95-Am

8

8

13

15

9

2

55

96-Cm

7

13

32

4

41

1

98

97-Bk
98-Cf

1

99-Es

TOTAL

562

661

130

1

1

6

14

21

3

2

5

90 2454

1284

421

413

138

6191

a •

Request S t a t i s t i c s
TABLE
1 J a n . 1976 t o 3 1 D e c . 1976
Area 1N u m b e ro fr e q u e s t s

f o r

d a t aCountry
OriginExperimental

Evaluated

Bibliographic

Codes

Documents

Total

USA

166

162

14

58

173

573

167

164

14

58

173

576

Canada

Total

o
ON

Data Dissemination
TABLE II
1 Jan. 1926 to 31 Dec. 197,6
Area 1

Data Type

AmountExperimental

29,215

Data Sets

Evaluated (Total)

8,571

Data Files

ENDF

6,368

Data Files

Other

2,203

Data Files

Bibliographic

322

CINDA Entries

Codes

151

codes

Documents

434

documents

Miscellaneous

32

Requests

andcontaining

1,917,666 Data Points

o•u>
Request Statistics
TABLE

1 Jan. 1976 to 31 Dec. 1976
Area 1N u m b e rofr e q u e s t s

f o r

Evaluated

Bibliographic

Codes

83

7

20

32

1

32

d a t aOriginating
Organization

Total

Total
Previous Year

76

292

255

11

49

113

100

0

16

48

111

92

17

6

11

0

59

15

164

14

58

173

576

462

Documents

Experimental

Government Labs..

106

University

20

Industry

16

Other

25

Total

167

Request Statistics
TABLE
1 J a n . 1976 t o 3 1 D e c . 1976
Area 1N u m b e ro fr e q u e s t s

f o r

d a t aTotal
Previous Year

Request
Disposition

Experimental

Evaluated

Bibliographic

Codes

Documents

Total

Fulfilled

167

164

14

58

173

576

459

partially
Fulfilled

0

0

0

0

0

0

0

Unfulfilled

0

0

0

0

0

0

3

Standing

0

0

0

0

0

0

0

167

164

14

58

173

576

462

Total

111
App.4
NDS
Appendix 4
BRIEF NDS REPORT TO THE 1977 4(HMETINCr

1.

STAFF

Since the last 4C-Meeting M. Khali1 has left the Section, who
was mainly responsible for evaluated and other non-Erfor data*
H. Marin-Guzman joined the Section as a programmer.
The additional physicists' post which was likely to become
available in 1977* will at earliest become available in 1978*
A new Unit for Atomic and Molecular Data for Fusion has been
started with two physicists (E. Beaty, K. Katsonis) and a
programmer (R. Seamon).
2.

CINDA

a. entries

The Cinda coverage of areas 3 and 4 has been reported in a
4C-Memo. We are sure that there are no significant gaps except,
still, for USSR lab reports. A number of Cinda relevant articles
from rare report series and theses are regularly found from INIS
Atomindex and INIS retrievals.
The Cinda clean-up work is continuing for area 3» mainly inconnection with Exfor compiling. A special problem used to be,that many labs from area 3 publish in publications of areas 2
and 1. He now prepare, at regular intervals, retrievals on theentries prepared in areas 1 and 2 for labs of area 3» in orderto get these entries correctly blocked.
NDS receives the complete Cinda master tape 4 or 5 times per
year from NDCC, and various specialized retrievals are made at
NDS for the Exfor compilers and for Cinda clean-up work.
Some clean-up of area 4 entries has been done when adding Exfor
index lines for this area.
The Cinda input checking programs have been brought up-to-date,including the use of Exfor dictionaries for lab and references,and the new "kill and link" operations.

112
App.4
_2 _

"bo publication
CIKDA 76/77 and its first Supplement havebeen published, thesecond Supplement is in preparation. The book is now produced
on a Digiset machine instead of a Linotron previously. The
photo-composition programmes have been revised to prepare
tapes for either a Linotron or a Digiset photo-typesetting
machine*3. EXFORa. compilation
The compilation of Exfor data continued, and in 1976 considerably more data were compiled than in 1974-75* See the corresponding statistics in Figure 1. Exfor data tapes were sent to
the other centers in regular intervals of about 3 months.
The situation is not yet quite satisfactory: Whereas
NDS is probably quite complete and often even fast with thecompilation of newest data, the backlog accumulated during the1974 period, when several posts were vacant, could be worked
off only partially, dure to the increased workload with request
services. Also, a large number of entries of the 70000 series
has still to be converted, although a long list of converted
70000 entries which can be deleted could be distributed a few
days ago.
The Exfor input checking programs were much improved and updated to take care of new rules.
b. Intercenter cooperation
The Exfor/Cinda dictionaries were frequently updated whenevera new code was introduced, and updates were regularly sent tothe cooperating centers.
Much emphasis was given to reviewing and revising Exfor
rules and the Manual, as can be seen from number and volume
of 4C-Memos distributed.

113
App.4
HDS

Figure 1
1000
Number of EXFOR data setscompiled at HDS per year

800 EXFOH "VIEN" file
\
600

400 -

1971

1972

1973

1974

1975

1976
EXFOR "VIEN" f i l e\

Number of EXFOR records
compiled at NDS per year30—
( x 1000)

20-

10-

1971

1972

1973

1974

1975

1976

114
App.4
HDS

c. Conversion to Generalized Exfor format
WDS is prepared to start using for MOT) the Generalized Exforformalisms developed for CFND. In particular, a new indexing
program has "been developed, which indexes "ISO-QUANT,, and"REACTION" type entries, using in the index the "HEACTIOF,
formalism for data definitions. Also the Exfor Edit programfor easier readability of entries works for "both types ofentries. However, in all programs for the Generalized Exforformat, a number of less important features still remain to "beadded.
4. CUSTOMER SERVICES
A supplement to CINDU-11 is being issued listing all the data
files received or revised since the issue of CINDU^H , This
type of data index has been well received by the customers andhas stimulated a number of requests.
Many data files are available in standard format or in edited
format, whatever the customer prefers. In particular, theedited format for Exfor, which also edits multidimensional
tables and tables with more than six columns, has become very
useful. A preliminary version of it is also working for CPND
Exfor data.
This time we cannot present a detailed request statistics.
A summary statistics is shown in figure 2 indicating the increasing numbers of requests received and data sent out.
5o EVALUATED DATA
We gratefully acknowledge the receipt of a number of new orrevised files of evaluated data. There are more and moredeveloping countries; starting to opeasat0 nuclear power stations
and therefore needing evaluated data files for reactor calculations. They also need advise on available computer
programs, and for this purpose HDS has increasing contacts

115
App.4
HDS

Pigare 2

1

Number of
BEQUESTS received p e r year, andDATA SETS sent out p e r year

<i3O0

requests <receiveddata sets
sent outIS?

data sets
sent out<r—• requests
received

116
App.4

with CPL I s p r a .
A few more evaluated d a t a s e t s , which a r e not p a r tof one of t h e major evaluated data l i b r a r i e s , have "beencompiled i n t h e EXFOR-VIEN s e r i e s and d i s t r i b u t e d t o t h eother c e n t e r s and t o customers,
6.

DATA REVIEWS
M. Vlasov i s continuing t o c o n t r i b u t e t o t h e i n t e r n a t i o n a lcoordination and evaluation of neutron r e a c t i o n s used forneutron dosimetry.
H. Lemmel i s continuing t o watch t h e development of thermal
f i s s i o n data 0

However, except for a revised value of t h e

Pu-239 h a l f - l i f e , no important new r e s u l t s became a v a i l a b l eduring t h e p a s t two y e a r s .

Thus, a paper presented a t t h erecent Gaithersburg Nuclear Data Conference only s t r e s s e dt h e n e c e s s i t y t o i n v e s t i g a t e t h e o r i g i n of t h e well-known
discrepancy between 2200 m/s and 20° G Maxwellion capture
and f i s s i o n data for U-233 and U-235.

Activities also continue in the field of fission productnuclear data (Meeting foreseen in September 1977» and regular Newsletters) and in the field of Actinide nuclear data.

7. OTHER ACTIVITIESWKEHDA 76 has been published.
Translation of USSR documents relevant to nuclear data continues. They are distributed as INDC-documents.
Forthcoming Meetings:
9 - 1 3 May 1977
14 - 15 May 1977
1 6 - 2 0 May 1977
5 - 9 , Sept 1977
14 - 18 Nov 1977
16 Jan -10 March 197^

Atomic and Molecular Data Centeyg
Joint Committee of INDC andI n t . F u s i o n Research Council
I»DC Meeting
Fission Product Nuclear Data, Petten
Nuclear Structure Data, Oak Ridge
Winter Courses on Nuclear Physics andReactors, Trieste

Requests received a t NDS for unreleased ENDF/B data
Name of Requester

Address ( l n s t i t u t e f University e t c . )DateComment

D. Seeliger

TU Dresden G.D.R.

June 1976

Fe

S. Pszona

Radiation Protection Department
Institute of Nuclear Research, Swierk, Otwock,
PolandSep. 1976

N,0, 0.5-30 MeV[Tissue Element]( e x p l i c i t request to
ENDF f i l e )M. Najzer

Institute "Jozef Stefan", Ljubljana, Yugoslavia

Nov. 1976

Li-7, B - l l , 0-16, Al-27, Zr,
Fe, Ni, Zr, Ag, Cd, Eu, Gd,
PTa, U-236, U-238, Pu-239,
Pu-240, Pu-241 (n,y) Total,e l a s t i c , non~ and i n e l a s t i c ,( n f ) . 5.1O~3 „ 1 # 5 . io7 e v[Reactor Calculation](General request for Evaluated
Data)

H. Fernandez Gianotti

Comisitm Nacional de Energia Atomica, Argentina

Dec. 1975

all

All Reactions(explicit request to
ENDF file)

ENDF/B-IV[for h i s nuclear Data Bank](General Request)

Chin-Lung Wang

Institute ofe Nuclear Energy ResearchTaiwan, Rep« of China

July 1976

Requested Cm-244 (ENDF/B-IV)(the requester has received
t h i s from NNCSC)

Feb. 1977

Requested Bk-249, Bk-250, Cf-250
Cf-251, Cf-252.

April 1975

ENDF/B and KEDAK
g>
Nuclear data file needed for w^
research.
•**•(continued)
ss t> M
aw M
COW COName of Requester

Address (institute, University etc.)

Date

S. Rapeanu

S t a t e Committee for Nuclear EnergyBucharest- Romania

May 1976

M. Matausek

Boris Kidro I n s t . Vintfaf Beograd, Yugoslavia

J u l y 1976

needs all E N D F / B - 4 forreactor calculation

O.G.P. Grosskopf

Atomic Energy Board-Pelindaba,

May 1976

requested ENDF/B~4
Fission Product Library and fourother libraries. Needs forreactor calculation

Republic of South Africa

Comment
S N D P / B - 4 All.

for reactor calculation

Appendix 577-3684
Translated from Russian lay IAEA (April 1977)

I . V . Kurchatov I n s t i t u t e of Atomic Energy
Centre for Data on t h e S t r u c t u r e of t h e Atomic Nucleus

EXPERIENCE OP EXCHANGING DATA ON NUCLEAR REACTIONSWITH CHARGED PARTICLESt h i r d Meeting on Charged P a r t i c l e Nuclear Data Compilation(second Meeting of Nuclear Reaction Data Centers)

T . I . Grigoryan, G«M. Zhuravleva
L.L. Sokolovsky, P.E. Chukreev

Moscow, 1977

CAJaD

121
App.5
CAJaD
1. The Centre for Data on the Structure of the Atomic Nucleus and on
Nuclear Reactions (USSR State Committee on Atomic Energy) consists, as earlier,of 16 workers of whom three spend part of their time preparing data on nuclear
reactions with charged particles (iCPND ) in the "generalized EXFOR" format.
Since the previous meeting, in May 1976, "the Centre's main activity in
the CPKD field has "been the preparation of numerical material in the "generalized EXFOR" format and of the corresponding software.
As earlier, in the preparation of numerical material we send a roughversion of the prepared material to the authors of an entry so that they cancheck it carefully. So far we have not considered it necessary to make a
substantial increase in the number of compiled entries and have concentrated
our efforts on the compilation of entries of as many laboratories and groups
as possible so as to make clear the difficulties which can arise when the"generalized EXPOR" format is used and to gain experience. At the same time
we have exchanged magnetic tapes, and we were very pleased about MEMO CP-D/14
as the "characters" of the Agency's computer and the Centre's computer have
proved to be the most different in recent years. Experience at the Centre
with tapes from other centres has shown that tapes from the United States
and the Federal Republic of Germany can be read without trouble, whereas thereading of Agency tapes presents us each time with a difficult problem
requiring a careful choice of reading conditions.
Much has also been done as regards software. In this we were greatly
assisted by the CSEXCK program kindly sent by Charlie Diinford. We could notuse it directly in our computer as PDP-1O sysStem programs constitute,a substantial part of the program, but the Centre's programmers were able tostudy the acceptance structure and processing logic for EXPOR texts.
In later sections of this report we discuss actual difficulties whicharise during compilation. We hope that the difficulties will be resolved
at this meeting.
2. MEMO CP-D/13 is on the whole acceptable. However, we would draw
attention to a number of difficulties which arise during verification thatthe formal EXPOR rules are being observed. In some cases it is impossible
to use a computer for removing errors made by the technical personnel inimportant parts of a description. We consider MONITOR, REACTION and
REFERENCE - as well as DATA and GENERAL DATA - to be important parts of a
description; MONITOR and REACTION are important for search programs and
REFERENCE for rapid retrieval of the initial publication.

122
App.5
CAJaD

- 2 -

The description of a reaction has "been well formalized in "generalized
EXFOR , and the rale for using the REACTION keyword is clearly stated;"The REACTION keyword must be in all SUBENTRIES except the first.,. Nevertheless, we should like to make suggestions regarding use of the REACTION
keyword.
,,2.1. Complete the separation of the dictionaries so that there is adictionary for each reaction code fields. The present dictionary 33 contains
the codes of,fields 2,' 3 and 7. . This makes it difficult for authors tocheck.material prepared at the Centre.
2.2. Extend the proposal made "by G. Lemmel in MEMO CP-D/ll to allcomplex reactions, not limiting it just to fission.
Without using such a formalism it is impossible to describe the resultsof investigation 1 - a study of the relative yield of francium and radon
isotopes when a natural mixture of iridium is irradiated with neon-20 ions.
We do not know of any clear description of the reaction except(77 -IR-0 (lO-Ne - 20, x) Z - EL-A,)».

If one attempts to use indices for each partial reaction, the resultscannot be presented in machine-readable form.
2.3« Let us now turn to dictionary 8, in which the chemical symbolfor element 102 is NO - "nobelium". We can assure our colleagues that theCentre will not have ( A P R V D ) in the status if this designation is used.
Soviet scientists working in the field of very heavy elements do not use theword "nobelium,,. There is obviously no sense in discussing the reasons forthis attitude at the meeting; they are well known. In the neutron EXPOR
this problem has not yet arisen as no one has carried out experimental
studies of the interaction of neutrons with element 102. In relation to
nuclear reactions with charged particles it does arise, however, and suchreactions will yield new elements which may not receive their new name atonce. If there is no agreement on the name of a chemical element, we suggestthat the element in question be referred to by, say, the designation "ZZ",
with an indication of the atomic number. Thus, element 102 could be referred
to either as "102-NO,, or as "102-ZZ".
2.4» While the description of a reaction is satisfactorily formalizedin "generalized EXFORW and its use clearly defined, this is not so for
MONITOR. It is suggested that it be used in all cases where that makes
sense. Chance omission of the word "MONITOR,, from the text is therefore* (Note added by H.D. Lemmel:) ...or in the first SUBENTRY and not in thefollowing SUBENTRIES.

123
App.5
CAJaD
possible, and it will not "be detected by the computer - and, as our experiencehas shown, this defect may "be missed even by man. It would therefore be
useful to introduce the following rule: "The keyword MONITOR must "be included
in all SUEENTRIES if it was not in the first SUEENTRY. If it was in the first
SUEENTRY, it must not be in any other one.,. In cases where the measurements
are absolute and there is no monitor-reaction (reaction-monitor?), one canuse as code a letter after the opening bracket. For example, MONITOR (NOT
USED).
In cases where there is a monitor-reaction, the first symbol after the
opening bracket is always a number. In this way it will be very easy toprogram. There is no need to convert material already prepared by KACHAPAG.
However, the introduction of such a rule will offer the advantage of "fool—
proofness,,.
2.5.

Let us now turn to the REFERENCE. Here we have two comments.

2.5*1* The first relates to the type of publication. At present wehave journals (j), reports ( R ) , progress reports ( P ) , theses (T) and private
communications (w). In compiling works from JINR we encountered difficulties
due to the fact that JINR publications are of two types.
A note on the inside cover of, for example, JINR publications Rl-9987
and E4-9926 reads:"JUTR preprints and communications are independent publications. They
are issued in accordance with Article 4 of the JINR Statute. The difference
between preprints and communications is that the text of a preprint willsubsequently be reproduced in a scientific journal or a non-periodic collection."
The existing publication categories in BXFOR do not permit a distinction
to be made between these two types of publication, although a distinction
should be made. Our suggestion is the following: in dictionary 6 keep thedesignation JINR-.... for JINR preprints and introduce the designation
CJINR... for communications. This will not mean going beyond what is prescribed by the EXFOR rules.
2*5*2* The second comment relating to the REFERENCE concerns theconstruction of the code within the brackets. The rules for constructing
this code, as set forth in the EXPOR Manual, do not allow for computer
checking. For example, the general form in coding a preprint is (R, codenumber, (volume or part), page, date), whereas in the example on the same

124
App.5
CAJaD

- 4 _

page Onrc.8)of -the Manual we see (Rt UCRL - 5341» 5806), there being novolume or page. Obviously, in this case the report consists of a single
part and is devoted entirely to one subject. However, this is very inconvenient for automated checking, for the same reasons as in the case of the
keyword MONITOR. The Centre's programmers were very puzzled by theuncertainty regarding the arrangement of information until they received
the CSEXCK program and discovered that only the code for the type of
publication and the report code are checked. Similar examples can begiven for other types of publication. Does this, however, lead to themissing of substantial errors?
In this case, unlike the MONITOR case, we cannot at present suggest
a modification of the rules which would not require substantial changes in
the neutron EXFOR. The Centre might try to find an acceptable form forwriting the REFERENCE which, without major changes in the neutron EXFOR,
would make computer checking possible. For this purpose we would need tosee other centres' block-diagrams or programs for REFERENCE checking.
3. The difficulties arising in the application of the generalized
EXFOR can be divided into three categories:
3.1. Fundamental;
3.2. Important but not fundamental;
3.3«

Easily solvable.

In the preceding section we drew attention to the last two categories,
but the first one is obviously the most important.
A fundamental error is undoubtedly the fact that different participantsin our common enterprise appear to have different ideas regarding the final
result of the compiling of experimental investigations.
3.1.1. In our opinion, only those works deserve to be compiled in the
EXFOR format in which, besides data in machine-readable format, errors(uncertainties) in the data can be given. F;rom this point of view, thetremendous labours of Prof. MHnzel and his KACHAPAG co-workers are, in manycases, considerably reduced in value owing to the absence of DATA-ERR columns.
The regional data centres could render KACHAPAG great assistance infilling this gap. For example, they could send the KACHAPAG results toauthors and ask them to look through the tables of data and give more precise
information about the experimental uncertainties.

- 5-

125
App.5
CAJaD

If the authors are inaccessible, the compiler must be able to introduce
in the "experimental error" column what he considers to be the maximum
error, noting the fact under COMMENTS.
3.1.2. The reference data used in the MONITOR keyword should not beallowed to appear as in B0016, where there are no measurement errors, noplace of publication and no authors* approval. In such a situation, theCentre must recommend not using data obtained on the basis of this MONITOR.
The help of the regional data centres is also needed in refining suchreference results.
4. At present, the application of the "generalized BXPOR" to new
types of data (photonuclear reactions, differential ••CPWD, etc.) can hardly
become widespread:-firstly, because the position is different for different
categories of such data. In the case of photonuclear reactions
some experience has been gained in the United States, and
Dr. A.I. Abramov has done work in the Soviet Union. In thecase of differential CPHD, however, up to the time of thismeeting there was virtually no experience of compiling themin the EXFOR format?

—

secondly, given the enormous variety of differential data one
cannot but be pessimistic about reducing such data to asingle format in the near future.

Nevertheless, without some differential data even a collection of
integral "CPMD will be incomplete. For example, only differential quantities(energy spectra of light products of the interaction of neon-22 withthorium-232) were measured in Ref.[2]. However, an analysis performed by
the authors showed that, in a number of cases, reaction products were emitted
after the attainment of statistical equilibrium. If this is indeed so, an
experienced evaluator should also be able to obtain integral cross-sections
from these data.
Data of this type should, in our opinion, already be included in thepresent CPHD file, the advantage being that they could be used for integral
CPHD.
However, it will hardly be possible in the immediate future to present
the entirety of differential CPHD in an exchange format (with a reasonable
expenditure of resources).

126
App.5
CAJaD

_ 6-

Thus, there is a contradiction in the differential CPHD area - some
CFHD are needed now and all will be needed at some time in the future,"but if we start to translate all differential data indiscriminately into
EXPOR without some system, we risk drowning the present needs in thegeneral flood.
The only way out of this contradiction is to prepare specializedcompilations in the EXPOR format for specific applications. There are
already groups of scientists in various countries who can and want to
prepare specialized compilations. The task of the existing nuclear data
centres, groups and sections should be to help them in mastering EXFOR andto convince them that EXPOR is what they ought to use. The centres shouldtake on the task of reading the prepared material, check that it complies
with the EXFOR rules and render all the assistance they can.
4*1. The Centre does not intend to embark on a major compilation of
specialized differential data before the next meeting. For the present
we do not wish to assume new responsibilities in this area. He can best
help new groups by letting them have the texts of articles appearing insmall-circulation Soviet publications and passing on the material preparedby them to the Soviet authors for checking.
4.2. As new groups join in the compilation of nuclear data, theHuclear Data Section will have to ensure that they all have the EXFOR
Manual and that they receive any supplements to it in good time.
5» The requirements of Soviet scientists in the CPND area are dealt
with by the Centre on the basis of actual requests. About 300 requests
were received in 1976j about half of them were met. The reasons for failingto meet requests were: 1. the absence of experimental data; 2. a "valueof estimate/cost of estimate,, ratio less than unity.
REFERENCES[l]

A.P. KABACHEHKO et a l . , JBJR p r e p r i n t 7-9566, Dubna, 1976.

[2]

A.G. ARTYUKH, JEJR p r e p r i n t E7-9974 f Dubna, 1976.

127
App.6
KaChaPagAppendix 6
KACHAPAG
KARLSRUHE CHARGED PARTICLE GROUP
Opening Statement

6.. 4^ 1977
Since the last Meeting the recommendations in respect to the generalized
EXFOR were implemented and the routine compilation started. There are now
data for about 450 reactions available on the file. Two Transmission tapes
were distributed in October 1976 and March 1977. We received comments on tape
B002 suggesting some changes and pointing to some obvious errors. The lattermistakes were corrected on tape B003 but other alterations are not included,
because some of them should first be discussed here in Kiew.
We received revised test compilations from the Kurchatov Institute. They were
thoroughly checked and the resulting questions and suggestions are summerizedin Memo CP-B/7.
The program system used to handle the data was improved. However, many important
programs are still not available or should be improved, e.g. the Indexing program or the checking program. We would very much like to have them, but - due tothe fixed man power available to us - any time spend to write them has to bewithdrawn from the compiling activities.

'

Especially in the last 3 month a tremendous number of Memo-pages has arrived at
Karlsruhe. Among them were the new Manual and LEXFOR pages. Here, NDS has donea very fine job. However, reading and discussing them consumes a lot of time
which is then not longer available for the compilation. We therefore hopestrongly that the generalized EXFOR is now nearly implemented.
In the future we will continue to compile CPND and distribute every half year atransmission tape containing the complete file. Eventually necessary alterationsof the older entries will be already added in the transmission tape and a written
record of these changes will be provided.
In addition we are planning a written version of the content of the file. Manyof the details are still under discussion. However, it was decided, that itshould contain the data for proton

reactions with heavier target materials.

The last CPX-Report contained targets up to Z ^ 28. Therefore,we will concentrate
now on target nuclides with Z $ 29.

129
App.7
ZAED

ZAED
Appendix 7

Status report

Zentralstelle fur Atomkernenergie-Dokumentation(ZAED)

Federal Republic of Germany
H. Behrens
I

Actions on ZAED at the Second CPND Consultants , Meetinga) Action 1 will be dealt with separately as it requires moredetailed discussions than those customary in opening
statements.
b) Action 7
After careful consideration we have decided against publishing
the cumulative bibliography of integral CPND for the years
before 1976, the reason being that the efforts to be invested
in things like programme modifications, elaboration of special
procedures, etc. were thought to be too high for somethingwhich is not to be used again in the future.

II

Activities of ZAEDa) The bibliography of Data Compilations in Physics, as announced
during the second meeting on CPND, has been published in themeantime (Physikdaten/Physics data 3-1 1976). This publication
contains the bibliographic data of 1457 data compilations.
Last meeting's participants have been sent one copy each.
With the exception of the Nuclear Data Section, no comments
according to Action 2a have been received yet. A supplement
to the publication mentioned above with more than 5oo bibliographic items is almost ready to go into print. It will contain all data compilations published in the meantime, and those

130
App.7

ZAED
which were not available at the time of the publication forthe main bibliography.
b) With reference to Physikdaten/Physics data 2-1 1976: "Stopping cross sections of elements with Z = 2 to 87 for Li ionswith energies between 8o keV and 81o keV">it is intended to
publish further issues of this kind for other types of ions.
Furthermore, these stopping cross sections are also to beextended to chemical compounds.
c) Physikdaten/Physics data 1-1 1975: "Survey index of pionnucleon scattering data, together with the corresponding
files which contain the actual data such as differential crosssections and polarization data for pion nucleon scattering including charge exchange scattering), will be brought up todate.
In this connection it might be of interest that it is intended
by us to publish a data compilation "Photoproduction of pions".

Ill

Other aspects
As agreed on the occasion of the IAEA Advisory Group meetingon nuclear structure and decay data for applications, we havebegun in February to compile and evaluate the nuclear data
for the mass region 81 -loo, whereby - to start with - wehave concentrated on the mass A = 86. In this context, Dr.Tepelof the ZAED attended a training seminar at the Nuclear Data
Group, Oak Ridge, in March 1977. In addition,we intend to engage more actively than so far in the field of atomic andmolecular data, in which a network of data centers is organized under the coordination of the IAEA Nuclear Data Section.

131
App.7
ZAED

Appendix 7> Annex a.
Recent and planned publications by ZAED

1-1 (1975):

Price/Preis
plus postage/zuzQgl. Porto*
450 DM

2 - 1 (1976):

350 DM

Survey Index of PIon-Nucleon Scattering Data.
By K. H. Augenstein, G. Hohler, E. Pietarinen and H. M. Staudenmaier
56 pages.
An index to references on differential cross section and polarization measurements UD
to June 1975 for the reactions 5r + p-»:r + p, n - p - » n - p and n - p — * n ° n
The data themselves are available on magnetic tape.
Stopping Cross Sections of Elements with Z = 2 to 87 for LI Ions with
Energies between 80 keV and 840 keV.
By W. Neuwirth, W. Pietsch and U. Hauser. 6 pages.
A compilation of experimental and calculated stopping cross sections.
3-1 (1976): Datensammlungen In der Physlk. Data Compilations In Physics.
By H. Behrens and G. Ebel. 206 pages.
A bibliography of about 1450 existing tables and compilations from all fields of physics.
4 - 1 (1976):

1 4 - DM

Compilation of Coupling Constants and Low-Energy Parameters. 1976 Edition. 6 M. M. Nagels, J. J. de Swart, H. Nielsen, C. C. Oades, J. L. Petersen
B. Tromborg, G. Gustafson, A. C. Irving, C. Jarlskog, W. Pfeil, H. Pil'kuhn,
F. Steiner and L.Tauscher. 90 pages. Reprinted from Nuclear Physics B.
A compilation of.coupling constants and other parameters which characterize the interactionsof elementary particles at low energies.
5-1 (1976):

Gases and Carbon In Metals (Thermodynamics, Kinetics and Properties).
Part I: Alkali Metals, Alkaline Earth Metals, Light Metals(Li, Na, K, Rb, Cs, Ca, Sr, Ba, Be, Mg, Al).
By E. Fromm, H. Jehn and G. Horz. 26 pages.

6-1(1976):

Shapes of Beta Spectra.
By H. Behrens and L. Szybisz. 43 pages.
A compilation of all measured beta spectrum shape factors.

DM

9,50 DM

4 50 DM

In preparation:
Datensammlungen In der Physlk. Data Compilations In Physics.
By H. Behrens and G. Ebel. - Supplement to No. 3 - 1 (1976).
PhotoproducUon of Plons.
By W. Pfeil et al.
o- D j> Properties of Some Insulators In the Vacuum Ultraviolet Region.
By R.-P. Haelbich, M. Ivan and E. E. Koch.
Survey Index of PIon-Nucleon Scattering Data.
By G. Hdhler et al. - Supplement to No. 1-1 (1975).
Bibliography of Microwave Spectroscopy 1945-1975.
By A. Boggs, M. Botskor, M. Jones, K. Kettemann, R. Mutter, Ch. Spreter and B. Starck.
* Im Inland kommen zu den angegebenen Preisen 5,5 % Mehrwertsteuer.

Copies can be ordered from ZAED, Kernforsohungszentrum Karlsruhe,
D-7514 Eggenstein-Leopoldskafen 2, Fed.Rep. of Germany

ZAED

133
App.7
ZAED

Appendix 7. Annex "b»Retrieval of integral CPND from INIS

Zentralstelle fur Atomkernenergie-Dokumentation
Federal Republic of Germany(ZAED)

H. Behrens
In the past, the retrieval of integral cross sections and exitation
functions from INIS tapes was made difficult by the lack of specific descriptors for these terms. Therefore, one had to turn to arather complicated search formulation in order to retrieve the integral CPND. This is illustrated by the following example
:
QXO1
QXO1
QXO2
QXO2
QXO3
QX04
QXO5
QXO6
QXO7
QXO8
QXO9
QX1O
QX11
QX12
QX13
QXm
QX15
QX16
QX17
QX18

PROTON REACS5 + DEUTER0N RSS + HELIUM 3 Rg+TRITON REACTIONSfALPHAHEAVY ION R$
NUCLEOSYSS + ISOTOPE PRODUCTION+FUSIONg+PROTON SPECTRA + ALPHA
SPECTRA+SPALSS+CHEMICAL Ag + SC#Dg+SC#Bl*
QXO2*CROSS SECTIONSBORN Ag+DISTORTEDg+SPINg+POLARIZS+SCATTERINGg+SPECTROSCOPICg
QX04*DIFFERENTIAL CROSSg
OPTICAL MODEL2+BORN Ag+NUCLEAR PROPg+PARTIAL W^. QX06*ELASTIC SCATTERING
POLARIZ2+ANGULAR2+BORN Ag
SPIN2+HIGH SPIN2+SCATTERING0+ISOMERIC TRANSITIONSQXO9*QXO8*EXCITATION F$BORN AS5*ANGULAR$*SCATTERING
QXO5+QXO7+QX1O+QX11
GEV RANGE+MESONS+ANTIBAg+HYPERONS+RESONANCE P$
CROSS SECTI0NS^-QX12
QX14 + QX03 + NUCLEAR REACTION Yjg
QX15*QXO1*MEV RANGE
QX15^QXO1^-QX13
QX16+QX17

Despite of this complicated formulation only about 25% of theretrieved documents were relevant.

134
App.7

ZAED
- 2 As a result of a proposal by ZAED

new specific descriptors, i.e.

- integral cross sections- excitation functions
were added to the INIS thesaurus. With the aid of these new descriptors, searches can be formulated much more simply, as the following
example demonstrates:
QXO1
QX02
QXO3
QXOU

PROTON REACTIONS + DEUTERON REACTIONS + HELIUM 3
REACTIONS+TRITON REACTIONS + ALPHA REACTIONS + HEAVYION REACTIONSINTEGRAL CROSS SECTIONS + EXCITATION FUNCTIONSSC#A33 + SC#A3U + SC#Blg
QX01*-0X02 *- QXO3

No experience has been made so far with this new method, but there
is justified hope that the results will be considerably better.

1)+ = or"*• = and*•- = and not~^Vf"logical operations/$ - truncation= functional character for discrimination ofscopes against descriptors

Appendix 8

135
App,8
Japan

Status Report of Japanese Study Group(1) Our aim in the NRDF-2 is to develop the working system for the compilation of basic charged particle reaction data, such as angular distributions, polarization, asymmetries, excitation functions, etc. Associatedinformation such as experimental conditions should also be stored in orderto make future evaluation possible. The NRDF-2 will in future supplementthe "Nuclear Structure Data File"(NSDF).

(2) Our schedule of completing the working system NRDF-2 has unfortunately
been delayed about half a year.

(-3) Data collection form of NRDF-2 for physicists has been settled, after
repeated filling-up tests of the.form, first by the members of our groupand second by several research associates in experimental and theoretical
nuclear physics(4) In the filling-up tests, all the papers with charged particle reactions
were taken up, in some recent issues arbitrary picked up from Nuclear
Physics and Physical Reviews. Most materials were found to be satisfacktorily recorded. At the same time some difficulties were found as for heavy ion
reactions etc., for example, distributions of mass, charge, and kinetic- andintrinsic excitation-energies of reaction products. Special forms arenecessary to be added with partial modification in the standard one. Suchcases will occur frequently "in future, with development of nuclear science.
b[see (*)].

136
App.8
Japan

_2_

(5) Machine intelligible data input format has been just devised.

It

includes some modification to that of NRDF-1, in order to be compatible
with EXFOR.

(6)

Efforts in designing NRDF-2 are mainly devoted to following up

a variety of charged particle nuclear data at present and in future.

A

new system will be capable of accepting data which are coded in somedifferent formats optimized to specific type of reactions respectively.
The system will be completed by this summer.

(7)

Collection of data will follow according to the scope reported by

Ohnuma at the Second CPND Meeting, i.e., first, all kinds of CPND produced
in Japan, and second, CPND of specific reaction types produced in the world.
This is not only preliminary data compilation activities, but also acompletion test of the system, which might guarantee a smooth switchingover to an actual permanent nuclear data compilation activities.

(8)

We will continue to make efforts to:i)

Keep close contact with the nuclear physics community in Japan, until

nuclear data compilation will be regarded as a part of physicists' daily
research activities which they are responsible for;ii) promote interest of young physicists in nuclear data compilation andthus prepare future compilers and evaluaters;iii) establish a permanent nuclear data center or section^srthree years1
period.

-3-

137
App.8
Japan

(9) Nuclear Data Committee is working as a joint meeting between ourgroup and JAERI.

Among the members of the committee are Tanaka, Ikegami(chairman), Ohnuma and Hasegawa from our group, and Fuketa from JAERI.

(10) Regular input of Japanese language publication to existing bibliographic systems will be provided under the charge of JAERI for the time
being.

138
App.8
Japan

Appendix 8. Annex a.
Block Diagram of Organization
Our group i s actually a committee for promotion of permanent
CFBD center in Japan,

We are working in two respects.

The f i r s t

i s actions against Japanese Government (Ministry of Ed, Sci and Cul)in order to construct the data center.

The second i s preparationsof soft and brain wears which will "be necessary in the center.
Another three y e a r s , period started at April 1976 under the financial
support of the Government through the Special Funds for the Promotionof Science,

We have our computer system including discs and magnetic

tapes at Hokkaido University,

Further the computer f a c i l i t i e s at

RC36TP, Osaka University are also available for our purpose*In thepresent stage we have no permanent proper staffs or personnels.
group consists of 8 physicists and a system engineer (Togashi),See attached block diagram.

Our

STATUS OP "JAPANESE STUDY GROUP , IN NUCLEAR DATA ACTIVITIES IN JAPAN

JPN",- Government
Ministry of Education, Science andCultureJPN - Government
Agency of Science& Technology

Budget, Personnel
>r ,

onnel

BudgetJPN - Study Group(Committee for promotion of CPND-Center)

JAERI

Joint Committee(NucJ.. Data Committee

Nucl. Data GroupJAERI - SIGMA
Committee\

Ikegami (Chairman, RCNP
Editorial Memberof ORNL-NDT)
Tanaka (Chairman)
Abe (Scien. Secretary*)
Ikegami (RCNP**)
Kawai
Sano
YamadaOhnumaHasegawa (INS+)
Togashi* Research Inst, for
Fundamental Fhys.
** Research Center for Nucl,Phys«•*• I n s t i t u t e for Nucl. StudyPcUceta(Group Leader)
TamuraIgarashi
Other Personnel

TantkaPuketaOhnumaHasegawa

ORNL
Nucl. Data Table
oo

141
National Nuclear Data Center
Brookhaven National Laboratory
USA
Progress ReporttoThird Consultants' meetingon
Charged Particle Nuclear Data Compilation
Kiev, April 1977

I

GeneralOn 1 October 1977, the National Neutron Cross Section Center of Brookhaven National Laboratory assumed responsibility for all charged particle
data compilation activity within the U.S.

Because of this additional re-sponsibility and because of the addition of nuclear structure data responsibilities, the center was renamed the National Nuclear Data Center (NNDC).

II

CPND Bibliography
The major project at NDCC for the past six months has been the production of a bibliography for integral CPND.

Literature produced during

the period 1 January 1976 and 1 February 1977 has been covered in our publication, first introduced at this~meetigg.

In general, coverage of journals

previously scanned by McGowan and Milner, begins after the last issue coveredin their final publication.

Additional journals, laboratory reports andother forms of publication have been included.
The format chosen for the data file is similar to CINDA and.to thfttprspr-Ssented by fih_to the previous consultants' meeting!

Retrievals of-valipus,

types' canr.be obtained from the^file by-sorting anS; them selection of desired
records.

An example of such a retrieval ip the publication which you havebeen given.
The bibliography has been produced from an all upper-case, limited
character set file.

The special printing features such as lower case, bold-facing and convenient reaction representation has been accomplished by acomputer program.

The output is converted to microfilm using an FR-80 micro-

film plotter which is in turn used to produce the printing plates.

142
App.9
NKDC
III

CPND EXFORNNDC has actively participated in the development of EXFOR for experimental charged particle data compilation.

Although we have not yet

compiled any CPND, NNDC feels that the logical links between neutron
charged-particle reaction data are such that each can benefit from experiences and developments of the other.
.IV FgafcareJPlaBS
NNDC will continue to cover the integral CPND literature and publish
an annual bibliography.

Specialized retrievals from this file will beavailable probably on microfische.
We will begin to modify our neutron data processing system to handle
the generalized EXFOR.

In this way we can produce all the. services cur-rently offered to neutron data customers.
Some evaluation activity will be initiated in the areas of1) fusion related data2) neutron source reactions
3) isotope production reactions for medical applicationslhAppendix 10

143
EDS

BRIEF REPORT BT NDS ON CPND ACTIVITIES

Since the last meeting the activities of KDS with respect to
CPKD concentrated on the following items:
1. Manual: A CPND Supplement to the Sxfor Manual was prepared.
Several items were subsequently clarified and added to the
CPND Manual, A number of items are still pending and will
hopefully "be solved at this Meeting,In addition to fixing the CPND rules our programmers
noticed that Chapters VII and VIII of the Manual had to be
restructured in order to become a more convenient tool forthe programmers. Thus a revision of these chapters was presented by Mrs. Attree, This includes both. NND and CPND
keywords. The second part of it was presented so short
before the Meeting that we do not expect that the Meeting
will consider or even approve all details of it, but wewould like to have the approval for the restructuring inprinciple.
2. Dictionaries: The Dictionaries have been updated regularly
and tape copies or printed copies distributed according to
the agreed distribution list,
3. Computer Programs: All Exfor computer programs of NDS
accept now both types of Exfor entries: in old "ISO-QUANT,,
format and in the new "REACTION,, format, although not yet
all new keywords and codes are checked or otherwise machineprocessed.
Due to the expectation that the "REACTION" formalism
will soon be implemented also for NND, the programming of therequired additional branches of the input check program hasreceived higher priority, and a number of CPND keywords andtheir coding were included in the check program, however
others have still to be programmed.
The programs for correcting an entry or updating a master
file work on both types of entries.

344
App.10NDS- 2 -The program for producing edited listings also works
for both types of entries, although for CPND not yet allcodes are expanded that should "be expanded. The editingof tables with more than 6 columns works also for CPMD0
The indexing program works for both types of entries,
however a number of items which are foreseen to be includedin the index do not yet work.
All programs were written in PL/1.
4. Compilation; In principle NDS will not do CPHD compilation
due to lack of manpower. However, an evaluation of theBe-9 (A, N+X) reaction from Canada has been compiled, partly
as a test material for the input check program. The compilation
was only recently finished.
5. Customer services: lake all other libraries the available
CPHD data are advertised to customers in the catalogue CINDU-11.
A few requests for CPKD have been received which however concerned data which were not on hand and therefore had to besatisfied from different sources.
In principle, answering requests for CPND requires
identical operations as for NND and thus creates no problems.

145App.11IBJ
Appendix 11iStatement foy A, Marcinkowski, IBJ

A computer code for tahelarization and compilation,in the NSDF format, of the gamma-rays following thenucleon capture and/or accompanying other nuclear
reactions has "been prepared.

The compilation of the

proton capture data on Ne and Fe are advanced.

For the purposes of mikroanalysis the compilationof charged-particles cross sections has "been i n i t i a t e don Ne isotopes,,PROTON gWERGY = 1651.9

4 KEVRESONAMCE ENERGY =7652.2 28 KEV

MM
gp)
IIS
II M
Uβ)
ii
IIO

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149
Appendix 12

App.12US Photo ND

Status report of the US Photonuclear Data Center (E. G. Fuller,H.M. Gerstenberg)

The major effort over the last year has been to complete workon a compilation of evaluated photonuclear reaction cross section data
for the p-shell nuclei. Of the nine stable nuclides tc be included
in
13
the
final
compilation,
preliminary
evaluationsforallexceptC
andlt,
H have been completed and are undergoing internal review. Barring
unforeseen complications, the complete evaluation should be submitted
for publication to the editor, of the Journal of Physical and Chemical
Reference Data by the end of June 1977.
At the time of the Gordon Photonuclear Conference in August
1976, the Data Center issued an interim draft index "New Photonuclear
Data, January 1973-May 1976." In addition to indexing the data publishedsince the cutoff date for inclusion in MBS Special Publication 380,
Photonuclear Reaction Data, 1973, this report contains a complete index
to the 1100 data sets now in the Center's digital cross section library.
.This report is an interim version of the first supplement to MBS SP-380
which will include an index to data publishing through 1976. This isplanned for publication in late spring.
The Center has continued to respond to an average of about
1.5 requests per month from various segments of the scientific andtechnological community for information from its files. During the lastyear, the results of a calculation based on data provided as a result of
one of the more unusual requests, were published in The AstrophysicalJournal 205, 638 (1976). The paper, by J. L. Puget, F. W. Stecker, andJ. H. Bredekamp of the NASA Goddard Space Flight Center, gives the results of a calculation of the interaction of ultrahigh energy cosmic
ray nuclei (56Fe and lighter) with the intergalactic radiation fields.
These fields, when Lorentz-shifted into the rest frame of the nuclei,
contain appreciable fluxes of photons capable of inducing photonuclear
reactions.

151
App.12US Photo KD

Appendix 12, Annex a.
The Digital Data Files of the Photonuclear Data Center
Henry M. Gerstenberg

The various files of digital data maintained by the Photonuclear Data Centerare specified by the acquisition number assigned to a particular data set. Ample
allowance has been made for any conceivable future demands on the system from thisrelatively small branch of nuclear physics. By the use of appropriate designators,
each associated with a well-defined sub-area of physics, the file system could be
expanded for use in other sub-areas. The major categories now being used arelisted in Table I. The various categories are then defined and discussed in detail.
Finally, specific examples are given.
Table I.

File Categories

Series

Cross Section
Spectra Angular Distribution
Manipulated
Combinat ion(Not yet designated)
Evaluated Cross Section

00,00010,00020,00030,00040,00050,000-80,000
90,000Range ofAcquisition Number
1 - 9999
10001 - 19999
20001 - 29999
30001 - 39999
40001 - 49999
50001 - 89999
90001 - 99999

Each file consists of a number of data sets. A particular data set consists ofan identifier card and two label cards followed by an arbitrary number of comment
cards and a series of data points. A data point is defined as a set of either twoor three numbers depending upon whether or not a flag is indicated in the appropriate position on the identifier card for that particular data set. In the more usualcase the two-number set gives abscissa and ordinate values. When the three-number
set is flagged, abscissa, ordinate, and uncertainty in ordinate, are given for eachdata point.
The identifier card uses eight fields to specify the information contained in agiven data set. The information given in these fields and their position on a cardis indicated in Table II. The.two label cards following the identifier card simply
explain the abscissa and ordinate axes. A total of 32 character spaces is allowedon each card; the information normally starts in the first column.

152-App. 12US Photo ND-2-

Table II.

Information

Field
PositionStart of Field-Right or Left
Adjusted

Number of Data Points

1-5
7-11

Right

Photonuclear Data Center Reference Number

13 - 18

Left

Nuclide for which data are glven(target nuclide for photon's incident,
residual nucleus for capture reactions)24 - 30

Left

Reaction

32 - 43

Left

Acquisition Number

No entry: Indicates data were digitized b*yData Center.
1: flag to indicate digital data wereobtained directly from source.

45

No entry: two-number format for each data
point used1:
flag to indicate three-number format
for each data point, I . e . , uncertainties
in ordinate values are given.

47

Modification Code - used only for manipulated
data f i l e to define successive manipulations
carried out on some original data set.
Manipulations are defined by comment cards.

49 - 50

Right

Right

Cross Section File - 00,000 Series (1 to 9999)
Any reaction cross section normally listed In the Photonuclear Data Index may
be placed In this file. This may be digital data sent to the Center by authors ordata digitized from journal articles. The Intent Is to use this file only for experimental cross section data that have not been modified. Thus, (y,sn) data,
derived from measured (y,xn) data by a calculation, are not included. The acquisition nomber assigned to any data set is the lowest number currently available
between 1 and 9999.

Spectra File - 10,000 Series (10001 to 19999)
This file contains data dealing with spectra of outgoing neutrons, protons,
alpha particles, photons, etc. The acquisition number assigned to a data set isthe lowest number currently available between 10001 and 19999. The energy or energies of the particles in the incident beam inducing the" reaction is given on acomment card.

-3153
App.12US Photo ND
Angular Distribution File - 20,000 Series (20001 to 29999)
Angular distributions of any reaction product with respect to the incident
beam direction are contained in this file. The acquisition numbering system is
identical to that of the spectra file except that the range of numbers is between
20,001 and 29999. Data are normally given in terms of a Legendre polynomial expansion of the angular distribution. Point-wise data, i.e., angle vs differential
cross section or yield may also be entered. The energy or range of energies of thedetected particles is given as a comment.

Manipulated File - 30,000 Series (30001 to 39999)
Data from the cross section file that have been modified are found in thisfile. Typical examples of manipulated data would be (1) the inverse cross section
as obtained by detailed balance, and (2) normalization of a cross section measured
at a single angle for comparison with integrated over angle cross section data.
The acquisition number of the manipulated data is found by adding 30,000 to
the acquisition numbers of the unmodified data set. If more than one manipulationof the original data set is made, then an additional two-digit integer code (anumber between 1 and 99) is punched on the identifier card. These modifications
are defined on the comment cards of the manipulated data sets.

Combination File - 40,000 Series (40001 to 49999)
At the present time this file contains data sets that are the combination of
two or more data sets from the cross section file. Most of the data in this series
are created with the program COMBIN. Examples of data sets in this file are:(1) the (y,xn) data set as obtained from the (y,n), (v,2n), and (y,3n) data sets
kept in the cross section file; (2) the cross section for a 'composite' naturalelement as made with the isotopic data for that element.
The data used to create this file as well as the data in the file itself are
not smoothed. The emphasis is to modify the data as little as possible in obtaining the desired result. The acquisition number assigned to a data set in this fileis the lowest number currently available between 40,001 and 49999.

Evaluated Cross Section File - 90,000 Series (90001 to 99999)
The contents of this file contain the 'recommended or best value' data to be
used, in the Atlas of Evaluated Photonuclear Cross Section Data. This file will
generally consist of those cross sections which make the largest contribution to
the total nuclear absorption cross section.
Except where data warrant a finer resolution, points are given at every half
MeV. Cross sections are obtained by interpolating and 'smoothing' data presented
in the cross section file. Cross section magnitudes are,those obtained from thebasic data. Any renormalizations that are felt to be necessary to obtain a 'best
value' or consistency with other measurements are indicated on the comment cards.
Acquisition numbering is accomplished by adding 90,000 to the cross section being
evaluated.

-4-

154
App.12US Photo ND

CROSS SECTION
FILE

[co:
COMBIN PROGRAM(DETAILED BALANCEI
PROGRAMANGUIARCOMBINATIONFILEDISTRIBUTION
FILE

W

SPECTRAFILE

MANIPULATEDFILE.

SMOOTHING W/ OPERATION \EVALUATEDCROSS SECTION
FILE

Relationships of files and programs are discussed in the preceding pages.

-5Example 1.

155
4pp.12US Photo MD

Gross Section F i l e

The four cross sections l i s t e d here are used l a t e r t o Indicate
how the basic measured data are used t o generate other f i l e s .
»#•»***»**•**************•*************•***•************************************

304
69 66BR1
PHOTON ENERGY* (MEV)
CROSS SECTION* <MB)

59PR141<G»N), .
. 9944OO77++QQ 11 ,, .1517+Q2,. 1 5 1 7 + Q 2 , .9717+. 9 7 1 7 + 00 l,l , ••||^|+02,8788+Ql, .4410+01, .9097+ol, .0000,
0000
l O665+o2,
5 2
4 3 O2+o2,
2
l 0 9 602,
2,1003+02, .3388+02, .1O34+O2, .4524+02, ,l,432,l096+,5829+02,1126+02, .6455+02, .1158+02, .7315+02, .1188+02, . 8 Q 2 5 + 0 2 , .1219+02, .9955+Q2.2861+02, .3124+02, .2892+02, ,3o22+02, .2923+02,-.532o+Ol».2985+02,-.1719+02,

305
47 66BR1
PHOTON ENERGY, (MEV)
CROSS SECTION, <M3).2954+02,-.257o+Ol

59PR141 <G»2N>.1560+02, .5370+01, .1591+02, .6320+01, .1622+02,'-,13Q0+0l> .1653+02, .9110+01.1684+02* .1920+01, .1715+02, .2000-01, .1746+02, .1950+01, ,1777+02, .7230+01.1808+02, .2061+02, .1839+02, .3436+02, .1870+02, .3488+02, ,190l+02, .3688+02.1932+02, .4834+02, .1963+02, .4282+02, .1994+02, .5934+02, .2025+02, .5613+02.2056+02, .5293+02, .2087+02, .4660+02, .2118+02, .5070+02, .2148+02, .4256+02.2180+02, .4267+02, .2211+0'2, .4832+02, .2241+02, .4309+02, .2272+02, .3143+02.2303+02, .3408+02, .2334+02, .3081+02, .2365+02, .2518+02, .2396+02, .33Q9+02.2427+02, .3137+02, .2458+02, .1378+02, .2489+02, .1157+02, .2520+02, ,2o37+o2.2551+02, .2993+02, .2582+02, .1243+02, .2613+02, .1324+02, .2644+02, .1967+02.2675+02, .4&20+01* .2706+02, .1024+02, .2737+02, .2020+02, .2768+02, .2820+02.2799+02, .2320+02, .2830+02, .1800+01, .2861+02, .6000+01, .2892+02, »7200+0l.2923+02, •8000+01, .2954+02, .3000+01, .2985+02, .1670+02»

306
17 66SR1
PHOTON ENERGY*CROSS SECTION, CMB)

59PR141<G»3N>.2799+02, .7400+00, .2830+02, .5730+01, .2861+02,-.6800+00, .2892+02, .3810+01,2923+02, .1670+01, .2954+02, .4170+01, .2985+02, ,^05o+0l» ,30l5+o2, .76oO+Ol.30^5+02, .9180+01, ,3o78+o2, ,7500+0l, .31o8+o2, ,878o+0l, .3138+o2, .7620+0*.3170+02, .1275+02, .3202+02, ,lOlO+O2, .3233^-02, .10&8+02, .3265+02, .1650+02•3296+02, .1078+02,

225
231 64AL2
PROTON ENERGY, (MEV)
CROSS SECTION, (MB)6C 12 (P»G).9790+00, .1293-01, .10^7+01, .1389-01, .1093+01, .158o-Ol, .1138+01, .1675~ol.1183+01, ,1771-01, .1229+01, .1961-01, .1297+01, .2104-01,.1365+ol» .2295~ol.1388+01, .2343-01, .1456+01, .2486-01, .1524+01, ,2582w0l» .1616+01* .2488-01
•

' A

~~—

—ii

*

.1331+02, .1989-01, .1335+02, .237o~Ol, .1345+02, ,2o86-ol, ,1354+02, ,1896-nl.1361+02, .1755-01, .1370+02, .1851-01, .1379+02, .1947~0l

-6156
App.12US Photo ffi>

Example 2.

Spectra File

This file contains data dealing with the spectra of neutrons,
protons, alpha-particles, photons, etc. Shown below is an example
of a neutron spectrum obtained with a peak bremsstrahlung energyof lh MeV.

10033
14 65MU1
73TA181 (G.N)
NEUTRON ENERGY* fMEV)(DN/DE1/E
C
DATA TAKEN WITH A PEAK BREMSSTRAHLUNG ENERGY OF 14 MEV.
.6020+00. .3091+05, .1005+01. .1691+05, ,1391+0l» .8331+04, .1793+01, . o o.2212+01, .1931+0^. .2598+01, .9804+03, .300l+0l» .5613+03, ..34o4+ol, .3679+03,3807+0l» .2640+03, .4210+01. .1757+03, .4598+01* .1299+03, ,5ol7+ol, .7663+02.5403+01. .4730+02, .5804+OU .1418+02

Example 3.

Angular Distribution File

Angular distribution of any reaction products are contained inthis file. The sample below gives -A^/A for a Legendre polynomial
fit to the neutron angular distribution obtained with a peak bremsstrahlung energy of 13 MeV. The neutron energy ranged from about. 5 to 3. 5 MeV.

20001
12 65MU2
73TA181 lG»N)
NEUTRON ENERGY* <MEV)ANGULAR DISTRIBUTION, (-A2/A0)C
BREMSSTRAHLUNG BEAM WITH PEAK ENERGY O F 13 MEV WAS USED.
CENERGY RANGED FROM ABOUT .5 TO 3.5 MEV.

NEUTRON.5999+00,-.3135-02, .1187+01, .2535-02, .1672+01* .5184-02, .2132+01,.2541+01, .2970-01, .2912+01. .5158-01, .327o+OU .894o~Ol» .3577+01, .1177+00.3909+01* .1^60+00, .4228+01, .1616+00, .4394+ol» .1678+00* »*561+ol» .174o+00

Example 4.

Manipulated File

The (y,p) cross section derived from the (p,v) cross section,
given by data set 225, by means of the detailed balance program.

30225
231 64AL2
6C 12 <G»P)
PHOTON ENERGY* (MEV)
CROSS SECTION. (MB)C
(P.G> CROSS SECTION USED TO GET (G.P> CROSS SECTION USING DETAILEDC
BALANCE PROGRAM.
.1687+02, .2809+00. .1693+02. .3203+00. .1697+02, .3785+00* .l?0l+02, '.4158+00.1705+02, .4548+00, .1710+02, .52Q6+00, .1716+02, .5852+00. .1722+02, .6669+00.2846+02, .1863+01. .2854+02, .1967+01, .2863+02, .2Q7o+Ol

-7-Example 5.

157
AP5.12US Photo MD

Combination F i l e

A sample of the data set in the combination f i l e . This data
set gives the t o t a l neutron yield cross section, (y,xn). I t was
obtained by combining data sets #s 304-, 305, and 306 from the crosssection f i l e along with the appropriate neutron multiplicity factors.

40020
6 9 66BR1
5<jPRl41 (G»XN)
1
PHOTON ENERGY* (MEV)
CROSS SECTION. (MB)C
(G*XN) OBTAINED FROM (6*N)+2*(6*2N)+3*(G»3N). USED DATA SETS N U M B E * 304»
OF THE N A«D 2N DATA*
C
305, AND 306. DATA CUTS OFF AT 29.85 M E V - T H E, ,9407+01* .1517+02, .9717+01, 3175+02.8788+01* .4410+01, .9097+01, ,0000,432o+o2, .1096+02, 5829+02.1003+02* .3388+02, .1034+02, ,4524+02,.1126+02* .6455+02, .1158+02, ,7315+02, ,1188+02, .8o25+o2, .1219+02, .9955+02.1250+02* .1221+03, .1281+02, ,1379+03, ,1312+02, .1614+03, .1343+02, .1933+03.1374+02* .2229+03, .1405+02, ,2510+03, ,1436+02, .2894+03, .1467+02, .3143+03.1498+02* .3356+03, .1529+02, ,3310+03, ,1560+02, .3199+03* .1591+02, .2923+03,1622+02* .2661+03, .1653+02, ,2404+03, ,1684+02, .2o94+o3, .1715+02, .1837+03.1746+02, .1656+03, .1777+02, ,1572+03, ,1808+02, .1512+03, .1839+02, .1371+03.1870+02, .1250+03, .1901+02, ,1288+03, ,1932+02, .1385+03, .1963+02, .1116+03.1167+03, ,2087+ 0 2, 9241+02.1994+02, .1345+03, .2025+02, ,1219+03,.2118+02* .9423+02, .2148+02, ,9906+02, ,2180+02, .1033+03, .2211+02, .9612+02.2241+02* .9840+02, .2272+02, ,8668+02, ,2303+02, .9568+02, .2334+02,o.2365+02, .7299+02, .2396+02, ,8762+02, ,2427+02, .7864+02, .2458+02, 5461+02.2489+02, .4046+02, .2520+02, ,5160+02, ,2551+02, O 619 0 +o2, # 2582+o2, 5890+02.2613+02, .3172+02, .2644+02, ,4221+02, ,2675+02, .3158+02, .27 0 6+o2, 4130+02.2737+02, .5490+02, .2768+02, ,5117+02, ,2799+02, .5864+02, .2830+02, 3354+Q2.2861+02, .4120+02, .2892+02, ,5605+02, ,2923+02* .1569+02, .2954+02, 1594+02.2985+02* .2336+02

Example 8. Evaluated Cross Section File

Samples of evaluated data for Pr-14-1. Smoothing of the data wasdone on data sets #s 305 and 306 as found In the cross section file.
90305
26 66BR1
59PR141 (G*2N)
PHOTON ENERGY. (MEV)
CROSS SECTION* (MB)C
SMOOTHED DATA POINTS. M A R C H » 7 4 HMG,1750+02, .4977+01, .1800+02, .1624+02,
il950+02, .5442+02, .2000+02, .5734+02,,2150+02, .4833+02, .2200+02, .4441+02,,2350+02* .3326+02, .2400+02, .3023+02,,2550+02, .2062+02, .2600+02, .1760+02,,2750+02, .1090+02, .2800+02, .9070+01,,2950+02, ,4018+01* .3000+02, .2760+01,1850+02, .2960+02, .1900+02,,2o5o+O2, .5566+02, ,2l00+02,,2250+02, .4064+02, .23oO+O2,,2450+02, .2688+02, .25o0+02,,2650+02, .1541+o2, »27oO+O2,.7234+01, .2900+02,.4227+Q2.5236+02.3675+02.2367+02.13o3+o2.576Q+01

90306
12 66BR1
59PR141 (G*3N)
PHOTON ENERGY* (MEV)
CROSS SECTION* (MB)C
SMOOTHED DATA POINTS. MARCH»74 HMG.2750+02,-.4751+00, .2800+02, .8382+00* .2850+02* . 2 l U + o l , .2900+02, .3367+ol.2950+02, ,4655+ol, .3000+02, .5976+01, ,3o5o+o2* . 7 2 3 5 + Q I , .31oo+f>2,.3150+02,.9755+01, .32oo+02,.1100+o2,.325O+Q2,.1223+Q2,.

-8158App.12US Photo HD
Examples of Computer-Drawn Cross Section Data

Figure 1 i s an example of the computer-drawn cross section datafor praseodymium. The open circles show the a(y,n) data from the data
set #305 as found in the cross section file.
The points show thesedata after smoothing. The smoothed data were then interpolated, to obtain values at every half MeV, and placed in the evaluated cross section
f i l e as data set #90305. The cr(Y,3n) data (the crosses show the basic
data and the line shows the smoothed data) were handled in a similar way.
Figure 2 shows the a(p,y) data set #225 as found in the crosssection f i l e .
These data were used as input to the detailed balance
program; the output was the inverse reaction cross section and i s shownin Fig. 3. The output was placed in the manipulated f i l e as data set#30225.

fiCQN0305

REFERENCE G6BR1

EXCIT- NUC 59PR141

POINTS

RERCTI0N

47(G.2N)

o

to

e

CD
©
• ©

O

Oβ "P
CT(y,3n) X 2

©e

'. e>
o°
a : o

CD o
CO

©

O o

LU C s J ,
CO
o
CO ~
CO
CD
CJ

e*.

©

9

o .b

°

i 14

o •.

e

16

18

20

22

24

26

28

30

PH0T0N ENERGY, (MEV)
Fig. 1

32

34

-9-

flCO NQ

225

REFERENCE.64flL2

EXCT.T. N U C

6C 12

POINTS

RERCTION

231

(P.G)
US Photo MB

o

CO
CO
CD

2.0Q

0

4.00

6.00

8.00

10.00

12.00

14.00

POINTS231

PR8TBN ENERGY, (MEV1
Fig. 2fiCO N0 30225

REFERENCE 64RL2

EXCIT. NUC.

6C 12

REflCTIQN

(G.P1

0Q

16

18

20

22

24

26

PHQTQN ENERGY, ((1EV)
Fig. 328

30

Appendix 12,,Annex b

161
App.12US Photo HD

Digital Data Input Format
Photonuclear Data Center
November 1974

Over the last few years, the Photonuclear Data Center has developed
a library of digitized photonuclear reaction data. Provisions are madein this library to file any of the various types of data normally presented
in graphical form which are germane to the field. Included among the typesof data in these files are total reaction cross section data as a functionof energy for any of the reactions of concern to the Center, differential
cross section data (angular) as a function of energy, reaction productspectral data, angular distribution data, etc. While a large part of theexisting data in the library were obtained by "deplotting" (i.e., digitizing)
published graphs in the Center, a considerable body of data have been obtained directly in digital form from the original experimenters. On thebasis of the Center's experience in entering these digital data into its
library, the format described in the following paragraphs has developed.
Use of this format by those sending digital data to the Center will greatly
facilitate entering the information into the final library file.
Data should be sent to the Center either on 80 character punch cards
or recorded on BCD magnetic tape (7 or 9 track) with one 80-character punch
card image per record and one record per block. If punch cards are used to
exchange data, the cardpunching code used should be defined. If possible, wewould prefer to receive cards punched in either the BCD I.B.M. 026 or the
C.D.C. STANDARD HOLLERITH codes as defined in the table of acceptable cardpunching codes published in Instruction to Authors, Vol. 1, No.1 of Computer
Physics Communications (July 1969) (copy attached). If neither tape nor
cards are feasible, a simple tabular listing of the data would be acceptable.
In the Photonuclear Data Center's Digital Library, the informationneeded to define, identify, and reproduce a specific graph in a publishedarticle is defined as a data set. A data set is visualized as a series of
80-character punched card images. Each such set starts with an identifiercard, followed by two label cards,' an arbitrary number of comment cards, andthen a series of data cards giving data points. A data point is defined asa set of two, three, or four numbers depending upon the entry made in a
specified position of the identifier card for the particular data set. In
the more usual case the two-number set gives abscissa and ordinate values.
The three-number set provides for giving a value for a symmetrical uncertainty in the ordinate value while the four-number set provides for quoting an
asymmetrical uncertainty in the ordinate (positive uncertainty followed bynegative).

162
App.12US Photo ND
Digital Data Input Format
Page 2.

The identifier card uses nine fields to specify the information contained in a given data set. The information given in these fields andtheir position on the card is given in the Table. The two label cards
following the identifier card give the labels and units for the abscissa
and ordinate axes. The first 32 character spaces on each card may be used
for this purpose. Data points are entered on the data cards in one of thethree following formats::0

Two-number data set [E9.4,7C,*,E9.4)]

1

Three-number data set [E9.4,5(* /.E9.4)]

2

Four-number data set [E9.4,7(*V,E9.4)3

Table I.
Field
NumberDescription of Identifier Card Fields
Field
Position

Information

1

Data Set Number (see comments below)

2

Number of Data Points (Data Points as defined in
text)

3

Photonuclear Data Center Reference Number (leave blank, if unknown)]

4

Nuclide for which data are given (target nuclide with photon orelectron incident, final nuclide
for capture reactions)

5

Reaction

6

Data Source
No Entry:
1:

Z
SymbolA

Start of Field
Left or Right
Adjusted

1- 5
7-11

Right
Right

13-18

Left

24-25
26-27
28-30

Left
Left
Left

32-43
45

Left

Data were digitized by Data Center
Digital data provided by original
sourceData Point Format (see text for definitions)
0 : Two-number format per Data Point
1 : Three-number """"2 : Four-number
"
"
"
"

47

8

Modification Code - An internal code used by
Photonuclear Data Center - Leave blank

49-50

9

Identification notes needed to completely specify
data in set

52-80

Left

163
App.12US Photo KD

Digital Data Input Format
Page 3.

Data Set Numbers: These numbers are assigned by the Group or Laboratory sending digital data to the Photonuclear Data Center. They should
run consecutively. Each group of data sets sent to the Center should beaccompanied by an index which associates each Data Set Number of the groupwith a specific figure or part of a figure in the paper where the data
either have been or are scheduled to be published. A complete bibliographic
reference should be associated with each data set. This Data Set Number
will be changed to a Photonuclear Data Center Acquisition Number when the
Set is entered into the library.
The following examples give typical data sets taken from the Center's
library. Note that the appropriate Center acquisition and reference numbers have been entered on the identifier card for each set.
30/f
69 66BR1
PHOTON ENERGY* (MEV)
CROSS SECTION* <MB)

59PR141 IG»N).8788+01, ,441o+ol. .9097+01* ,0000» .94o7+ol, ,I517+o2» .9717*01, .3175+02.1003+02, .3388+02, .Io34+o2, .4524+02, .Io65+o2, ,432o+o2, # lo96+ 0 2, .5829+02.1126+02, ,6455+02, .1158+02, .7315+02, .1188+02, . 8 O 2 5 + Q 2 , .1219+Q2, .9955+Q2.2861+02, .3124+02, .2892+02, .3022+02, .2923+02,-,532O+ol, .2954+OZ,-.257o+nl
U.2985+02*-.1719+02*°

225
231 64AL2
PROTON ENERGY* (MEV)
CROSS SECTION* 1MB)

6C 12

IP*G)

.9790+00* .1293-01, .l047+0l» .1389-01, ,l093+0l, ,158o-Ol» .1138+01, .1675-01.1183+01* .1771-01, .1229+01* .1961-01, .1297+01* .2104-01* .1365+01, .2295-01.1388+01* .2343-01, .1456+01* .2486-01* .1524+01* .2582-01* .1616+01*. .2488-01
•«-

—Is

—-——Ja."

—-*•

'

"

*—'

——S~~

—S"

•*

•

.1331+02, .1989-01, .1335+02, ,2370-Ql. .1345+02, ,2o8&-ol. .1354+ 0 2, .1896-ol.1361+02, .1755-01, .1370+02, .1851-01, .1379+02, .1947-01
10033
14 65MU1
73TA181 (G»N)
NEUTRON ENERGY* IMEV)(DN/DEJ/E
C
DATA TAKEN WjTH A PEAK BREMSSTRAHLUNG ENERGY OF 14- MEV.
.6020+00, .3091+05, .1005+01* .1691+05, .1391+01* .8331+04, .1793+01* .*»042+04.2212+01* ,1931+0*» .2598+01* .9804+03, .3001+01* .5613+03, *34o4+ol, .3679+03.3807+01* .2640+03* .4210+01. .1757+03, .4598+01* .1299+03* .5Ol7+ol» .7663+02.5403+01, .4730+02, .5804+01* .1418+02

20001
12 66MU1
73TA181 <G*N)
NEUTRON ENERGY* (MEV)ANGULAR DISTRIBUTION, (-A2/A0)C
BREMSSTRAHLUNG BEAM WITH PEAK ENERGY O F 13 M E V WAS USED.
CENERGY RANGED FROM ABOUT .5 TO 3.5 MEV.

NEUTRON,5999+00>-.3l85-02» .1187+01» .2535-Q2, .1672+01» .5184-Q2, ,2132+oW.2541+01, .2970-01. .'2912+01* .5158-01. .3270+01* .894o~0l* .3577+01, .1177+00.3909+01. ,l*6o+00» .^228+0l» .1616+00. .4394+01» .1678+00* .4561+01, .174Q+00

Appendix
No I. 262/204

165
App.13barn
27.9.76

13

Official Journal of the European Communities

COUNCIL DIRECTIVE
of 27 July 1976
amending Directive 71/354/EEC on the approximation of .the laws of the Member
States relating to units of measurement(76/770/EEC)

THE COUNCIL OF THE EUROPEAN COMMUNITIES,Having regard ro the Treaty establishing the European
Economic Community, and in particular Article 100
thereof,

HAS ADOPTED THIS DIRECTIVE:

Article 1
Article 1 of Directive 71/354/EEC is replaced by thefollowing:

Having regard to the Aα of Accession, and in..particular Article 29 thereof,•Article 1
1. Member States shall make the provisions of
Chapter A of the Annex mandatory by 21 April
1978 at the latest.

Having regard to Council Directive 71/354/EEC of
18 October 1971 on the approximation of the lawsof the Member States relating to units of measurement ('), as amended by the Act of Accession, andin particular Article 1 (4) thereof,

2. Member States shall, with effect from31 December 1977 at the laresr, cease to authorize
the use of the units of measurement listed in
Chapter B of the Annex.

Having regard to the proposal from the Commission,
Having regard
Parliament (2),to the opinion of the European

Having regard to the opinion of the Economic andSocial Commitrcc ( s ),3. Member States shall, with effect from31 December 1979 at the latest, c<ase to authorize
the use of the units of measurement listed in• Chapter C of the Annex.
—

Whereas, pursuant to the Act of Accession, the classification in Annex I to Directive 71/354/EEC of theunits of measurement lisred in Annex II to that)ircctive is ro be decided on by 31 August 1976 at
the latest;
Whereas, in Directive 71/354/EEC, provision is madefor the review before 31 December 1977 of thesituation as regards the units and names of units
listed in Chapter II of Annex I to that Directive;
Whereas the 15th General Conference of Weights
and Measures (CGPM), convened on 27 May 1975
in Paris by the International Committee of Weights
and Measures (CIPM), adopted new international
resolutions concerning the international system ofunits,(') 01 No I. :-n, 2?. 10. 1971, p. 29.
(-•> OJ No <: 125, 8. 6. 1976, p. 9.
(») OJ No C 1.51, 12. 6. 1976, p. SS.

•

—

~

_

4. The units of meas irement, names and symbols
listed in Chapter D of the Annex shall be reviewed
before 31 December 1979.
5. The use of the ur.its of measurement temporarily retained in accor iance with the provisions of
Chapters B, C and D of the Annex may not bemade mandatory by Member States where they
have not been autho ized since 21 April 1973.'

AtVchlThe following
71/354/EEC:

Article

is

added

to

Directive'Article Iα
Member States may authorise the use of
products, equipment cv.d instruments using units
which arc not authorized under this Directive,
which were already on the market prior to thedates laid down in mis Directive and the manu-J166
App.13"barn.9.76

No L 262/205

Official Journal of the European Communities

facture, placing on the market and use of products
and equipment necessary to complete or replacecomponents or parts of such products, equipment
and instruments,.'

2. Member States shall communicate to theCommission the texts of the main provisions ofnational law which they adopc in the field coveredby this Directive.

Article 3

Article S

Annexes I and II to Directive 71/354/EEC are replacedby the Annex hereto.

This Directive is addressed to the Member States.

Article 4
1. Member States shall bring into force the laws,
regulations and administrative provisions necessary inorder to comply with this Directive by 31 December
1977 at "the latest and shaJl forthwith inform theCommission thereof.

Done ar Brussels, 27 July 1976.
For the Council
The President
M. van der STOEL

167
App.13"barn
No L 262/206

Official Journal of the European Communities

ANNEX
LIST OF CONTENTS
Chapter A: Units of measurement, the use of which must be made mandatory as from 21 April
1978 at the latest
I.

SI units and their decimal multiples and submultiplcs.

1.1.

SI base units.

1.2.

Other SI units.

13.

Prefixes and their symbols used to designate certain decimal multiples andsubmultipics.

. 1.4.

Special authorized names and symbols.

'2.

Units defined on the basis of SI unit:, but not decimal multiples or submulriples
thereof.

3.

Units defined independently of the seven SI base units.

4.

Units and names of units permitted in specialized fields only.

5.

Compound units.

Chapter B: Units of measurement referred to in Article 1 (2}6.

Special units.

7.

Special case of temperature.

8.

Imperial units.

Chapter C: Units of measurement referred to in Article 1 (3)9.

Imperial units.

10.

CGS units.

II.

Other units.

Chapter D: Units, names and symbols referred to in Article 1 (4}12.

Imperial units.

13.

Other units.

14.

Compound units (for temporary use).

27.9. Id168
App. 13barn/Jo L 262/210

Official Journal of the European Communities

27.9. 76

1.3. Prefixes and their symbols used to designate certain decimal multiples and submultiples

PrefixSymbolFactorPrefix

10"

exa

£

10-1

dcci

cl

10"

peta

p

10-*

centi

c

10"

teia

T

io-»

milli

ra .

G

10-*

micro

M

Factor10»

Symbol

10"

mega

M

10-»

nano

n

10*

kilo

k

pico

P

10*

hecto

fa

io-»
io-«

fctnto

i

10*

deca

da

10-"

acto

The names and symbols of the decimal multiples and submultiples of the unit of mass
are formed by attaching prefixes to the word 'gramme' and their symbols to the symbol
Where a derived unit is expressed as a fraction, its decimal multiples and submultiples
may be designated by attaching £ prefix to units in the numerator or the denominator,
or in both these patts.
Compound prefixes, that is to say prefixes formed by the juxtaposition of several of theabove prefixes, may not be used.
1.4. Special authorized names and symbols
1.4.1. Special names and symbols of decimal multiples and submultiples of SI units
Unit
Quantity

VolumeSymbol

Name

litre

Value

1

11 = 1 dm* = 10-» m»

Massmetric tontl t = 1 Mg = JO*kg

Pressure, stress

bar

bar

1 bar « 105 Pa

1.4.2. Special names and symbols of decimal multiples and submulr'plcs of SI units
which may be used only in specialized fields
Unit
Quantity

Symbol

Name

Value

Area of farmland andbuilding landareala=l) s m*

Mass per unit length of
textile yarns and threads

tcx* (l)tex»

ltex a* lO^kg'm-1

C) The character * after a unit name or symbol indicates thai these do not appe: r in trie iixts <2rawn
up by the CGPM, CiPM, or E1PM. This applies to ihe whole of this Annt s.

Nor*: The prefixes and their symbols listed in 1.3 may be usei in conjunction
with the units and symbols contained in Tables 1.4.1 and 1.4.2.
The multiple 10* a is, however, called a 'hectare*.

169
App.13barn
27.9.76

Official Journal of rhe European Communities

N o L 262/214

CHAPTER CUNITS OF MEASUREMENT TO IN ARTICLE I (3)9.

IMPERIAL UNITS*
Qnantities, names of units, symbols and approximate values
9 1 . length
band
yard

I hand = 0-1016 m
I yd —0-9144 m

9 2. Areasquare inchsquare yard
square mile

1 sq in = 6-452 X 10"* m*i sq yd «= 0-8361 m1
1 sq mik- — 2-59 X 10* m*

93. Volume
cubic inch
cubic footcran

1 c u i n = 16-39 X 10-«in»
1 cu ft = 0-02S3 rea
1 cran = 170-5 X 10"5 m s-9.4. Mass
grain
stone
quarterhundredweightton

1 RT = 0-0648 X 10- 3 kg
1 st = 6-35 kg
I qr = 12-70 leg
1 cwt = 50-80 kg
I ton = 1 016 kg

9J. Forcepound-force

1 lbf = 4-448 N

9.6. Energy
British thermal unit
foot pound-force
therm

I Btu = 1055-06 J
1 ft lbf = 1-256 J
1 therm = 105-506 X 10, J

9.7. Power
1 hp «= 745-7 57

horsepower
9.8. Temperature
degree Fahrenheit

10. COS UNITS
Quantities, names of uniti, symbols and values
Unit
Quantity
Symbol

Ksmc

V»t: 1C

Force

dyne

dyn

Idyn = 10*s N

Energy

erg
poise

erg
P

1 erg == IO-'J

Dynamic viscosity
Kinematic viscosity
Acceleration of freefall

stokesSt

1 P « 10-' Pa • sl S t = JO-, m= • s- 1

gal

Gal

ICal = 10-J m • s- s

170App. 13barn

76

No L 262/215

Official Journal of the European Communities

11. OTHER UNITS
Quantities, names of units, symbols and values
Unit
N»mc

Wavelength, atomic
distances

SymbolValue

angstromA

1 A = lO-'» m

Effective crossscctionai area

barn

barn

1 b --= IO-Μm i

Massquintal* (a)Pressure

standard
atmosphereatm

1 atm = 101 325 Pa

Blood pressure

millimetre of mercury* (conventionally: 1 mmHg)

mmHg*

1 mmHg = 133-322 Pa

stcre

st

1 st = 1 m s

Volume (forestry
and timber trade}^1

1 quintal =• 10 kg(>) No international symbol cxms.

Note: The prefixes and their symbols listed in 1.3 may be used in conjunction with the units
and symbols conrained in sections 10 and 11, apart from the 'quintal'.

Appendix 11, Annex a

171App.13barn

Extract froms
Bureau International des Poids et Mesures
Lβ Syste'me International d'Unitea (Si)
3rd edition (1977)

TABLEAU

8

Unitis en usage avec le Systkme
International
Norn
SymboleValeur en unit* SI
minutemin
1 min = 60 s
heure {«)h1 h = 60 min = 3 600 s
jourd
1 d = 24 h = 86 400 s
degre"»
l<> = (*/i80) radminute'1' = (1/60)" = (n/10 800) radseconde"1" = (1/60)' = (JT/648 000) r a d3
33
litre (-)
1
1 1 = l d m = 10~ m
3fonne («)
t
1 t = 10 kgae( ) Le symbole de cette unite est inclus dans la Resolution
7 de la 9 C.G.P.M. (1948).
e
La definition du litre est dans la Resolution 6 de la 12 C.G.P.M. (1964).

•TABLEAU

10

Unite's a mainlenir
temporairement
avec le Sysleme International
Symbolemille marin (<•)
n c e u d

angstromare (*)
hectare ( 4 )barn (<)
bar (")
atmosphere normale (e) . .
Sal (0curie (')
rontgen (*)
rad (0.

A
a
ha
b
bar
atm
Gal
- Ci ; RradValeur en unite SIl m n i e marin = 1 852 m
1 mille marin par heure = (1 852'3 600)m's
1 A = 0,1 n m = 1 0 - " m
1 a = 1 darn 2 = 10* m*
1 ha = 1 h m 2 = 10» m»
1 b = 100 fm* = 10-* e m*
1 b a r = 0,1 MPa = 10 s P a
1 atm = 101 325 P a
1 Gal = 1 em's 5 = 10-* m/s*
1 Ci = 3,7 x 10'° B q
1 R = 2,58 x 10-« C/kg
1 r a d = 1 cGy = 10-= Gy( a ) Le mille marin est une unite spfciale employee en navigation maritime et aerienne poiir
expnmer les distances. Cette valeur convcntionnelle fut adoptee par la Premiere Conference
Hydrographique Internationale Extraordinaire, Monaco, 1929, sous le nom de «mille morininternational».
l*> Cette unite et son symbole ont et6 adoptes pa. le Comite Inter"al"onal en 1879 (Pro^isVerbaux CI*>M, 1879, p 41).
(c) I-e barn est ime unite spdeiale employee en physique nucleaire pour exp^mer Its sections efficaces.
(') Cette unite et son symbole sont inclu* da..s la Resolut.'on 7 de la 9' CGPM (194?).
(') Resolution 4 de la 10 e CGPM (1954).
if„ ),}-e . g a l J 5 t u n e u n I t 4 speciale employee en geodesie et en geophysique pour exprimer
l'acceldration due a 1- pesanteur.
'.})' Le curie est une unite speciale employee en physique rucleaire pour exptimer l'activite
Oes radionucleides (12« CGPM (1964), Resolution 7).
(A) Le rdntgen est une unite sveciale employee pour exprimer Vexposition des ra\onnements X ou y.
•(') L-j rad est uneainit<5 speciale employee pour exprimer la dose absorbfee de ravonnements
ionisants. Lorsque le mot rad peut entralner jne confusion avec le symbole du radian, on peututihser rd roinme symbole du rad.

172
App.13barn

Appendix 13, Annex

Extract from the Minutes of the 1976 Meeting at Stockholm of the
Nuclear Data Committee of the OECD Nuclear Energy Agency (NEANDC)

SEH/NEA1TPC/M(76)1- 10 -

12. Possible displacement of the 'barn' as the unit of nuclear.cross-section
Dr. Cross explained that a recent CEC directive ^/Council
tion of a number of~units inconsistent with the SI scheme, among
them the barn, as from the end of 1979* The magnitude of mostcross-sections was such that the use of international units would be
cumbersome : the work of conversion would be enormous, and noclearly useful object would be served. The nuclear physics
community had apparently not been consulted.
The Committee agreed that the barn should be retained as the unit
pf, nuclear cross-section, and directed the Chairman to write to theappropriate international bodies (in particular CEC and BIPM)
expressing their opposition to any change of cross-section unit.
Members should inform their national authorities and physicalsocieties of this resolution, while Dr. Cross should arrange forjournal publication of his note about the question.

Appendix 13» Annexe,

173App.13tarn.

RESOLUTION
on ANS Publication Policy
Adopted by the Cross Section Evaluation Working Group
October 28, 1976

WHEREAS, the Congress General des Poids et Mesures (CGPM) has deve^oped a system of units known as SI units which is being adopted by theindustrial and scientific communities, and has approved the use of certain
units in conjunction with SI units in specialized fields such as'.nuclear
engineering; and:WHEREAS, the Publications Committee of the ANS has gone beyond theguidelines of the CGPM, and adopted very restrictive use of SI units,
which in our opinion, will adversely affect the nuclear energy field,
such as the abandonment of the barn, electron volt and others,. BE IT .RESOLVED that the Cross Section Evaluation Working Group (CSEWG),
composed of many contributors to ANS publications, which provides much of
the nuclear reference data used in the nuclear community, supports theprinciple of the conversion to SI units as currently defined by the CGPM
and communicates their conviction to the Board of Directors of the ANS
and its Publication Committee that the adoption of a restrictive definitionof the SI system of units and other units which may be used with it in ANS
publications is inappropriate and should be reversed.

Sol Pearlstern, Chairman
Brookhaven N< tional Laboratory
Upton, N.Y. 31973

174
App.13
Appendix 13, Annex d
Recommendations on the Status of the Barnby the INDC, May 1977

The Conference Generale des Poids et Mesures (CGPM) has decided, aspart of the general adoption of the International System of Units (SI> thatthe "barn" may be used as a unit of nuclear cross section for an unspecified
time but that it should eventually be replaced by the ra2 or by one of thepreferred submultiples of the m 2 . This decision was originally made in1969, without consultation with representatives of the nuclear physics andnuclear energy communities most concerned with the use of nuclear cross sections, who became aware of this decision only a few months ago.
The INDC has carefully considered the consequences of the replacement of
the barn suggested above. The committee emphasizes that a nuclear cross section - the number of nuclear interactions of a specified type per unit fluenceand per target nucleus - is a critical nuclear quantity requiring a special
unit. Although a nuclear cross section has the dimensions of area it is not
an area.
The barn is a metric unit. The CGPM recognizes the need of special
metric units for use along with the SI. A special unit of nuclear cross section would permit use of SI prefixes differing by factors of 1 0 3 , whereas thepreferred sub-multiples of the m 2 (except for the cm 2 ) differ by factors of
10 6 . The INDC considers that the barn, which for many years has been used
universally as the unit of nuclear cross section, would be the most appropriate
unit. The disadvantage that it does not conform to the preferred set of SI
sub-multiples is strongly outweighed by its convenience, by the possible consequences of the errors in nuclear reactor calculations that would inevitably
result from its replacement and by the considerable economic penalties which
would result from the conversion of reactor computer programmes and data files.
Similar conclusions have recently been reached by the Nuclear Energy
Agency Nuclear Data Committee, by the Kiev meeting of the Nuclear Reaction Data
Centres, by nuclear data committees in the USA and United Kingdom.and byother representative bodies.
The INDC recommends that the IAEA support the continued use of the barn
(10~ Z8 m 2 ) as a special unit of nuclear cross section and inform the appropriate
international organizations - particularly the Comite International des Poids
et Mesures (CIPM) and the International Standards Organization - of thisposition.

(1)

Le Systeme International d,Unites (SI).
Bureau International des Poids et Mesures, Sevres, France, 1977.

175
Abbr.
list of Abbreviations used in this Document
CAJaD

Centr po dannym o stroenii atomnogo jadra ijadernykh reakcikh GKAE CCCP (Center for nuclear
structure and reaction data of the USSR State
Committee of the Utilization of Atomic Energy) at
the Kurchatov I n s t i t u t e , Moscow*

CCDN

Centre de Compilation de Donne'es Neutroniquesj sameas NDCG.

CIKDA

A specialized bibiliography and data index on
neutron nuclear data operated jointly "by NNCSC,
NDCC, NDS and CJD. The master f i l e i s maintainedat HDCC. Publications are made by IAEA,

CIHDU

A catalogue of numerical data l i b r a r i e s available
from NDS.

CJD

Centr po Jadernym Dannym, the USSR Nuclear Data
Center at F.E.I. Obninsk.

CPND

Charged-particle nuclear reaction data.

CSISRS

NNDC*s internal Exfor-compatible storage and r e trieval system for experimental data, superseding
the earlier system SCISRS-1.

EXPOR

Exchange Format, i n i t i a l l y developed for the i n t e r national exchange of experimental neutron nuclear
data, then extended to toner nuclear reaction data("Generalized Exfor").

Four Centers (4C)

The four neutron nuclear data centers NNDC, CCDN,
NDS and CJD.

IBJ

Instytut Badan Jadrowych ( I n s t i t u t e of Nuclear
Research), Warsaw.

INDC

International Nuclear Data Committee.

INIS

International Nuclear Information System, a b i b l i o graphic system operated by the IAEA.

Japanese Study Group

Study group for information processing in nuclear
physics at the Hokkaido University.

JAERI

Japan Atomic Energy Research I n s t i t u t e .

JHDC

Japanese Nuclear Data Committee

KACHAPAG

Karlsruhe Charged Particle Group, Germany Fed. Rep.

LIJaF

Leningradskij I n s t i t u t Jadernoj FizikL, Ak. NaukSSSR (Leningrad I n s t i t u t e of Nuclear Physics, USSR
Acad.Sci.).

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Abbr.

NDCC

Neutron Data Compilation Centre (Centre deCompilation de Donne'es Neutroniques - CCDN) of theOECD Nuclear Energy Agency, at Saclay near Paris.

HDP

Nuclear Data Project at Oak Ridge for nuclear
structure and decay data.

NDS

IAEA Nuclear Data Section, Vienna.

NNCSC

USA National Neutron Cross-Section Center, since1977 changed to NNDC.

NHD

Neutron Nuclear Reaction Data

NNDC

USA National Nuclear Data Center at the Brookhaven
National Laboratory, Upton, N.Y.

NRDC

Nuclear Reaction Data Center

NRDF

Nuclear Reaction Data H i e System developed by theJapanese Study Group.

'•Reaction l a s t "The bibliography of the Oak Ridge CPHD group, now
merged with the Oak Ridge Nuclear Data Project.
Published in "Atomic Data and Nuclear Data Tables".

"Recent References"

The bibliography of the Oak Ridge Nucl.ear Data
Project for nuclear structure data, including manyreferences on CPND. Published in "Nuclear Data
Sheets".

SCISRS-1

The old storage and retrieval system of the Sigma
Center, now NNDC.

WRENDA

World Request List for Nuclear Data Determinations

ZAED

Zentralstelle fur Atomkernenergie Dokumentation(documentation center for atomic energy) at
Kerlsruhe.