International Atomic Energy Agency

INDC(NDS)- 51

April 1973
Distribution:
G + Special

I N

DC

INTERNATIONAL

NUCLEAR DATA COMMITTEEREPORT ON THE EIGHTH POUR-CENTRE MEETING

Nuclear Data Section, I.A.E.A.
Vienna, 16 - 20 Oct. 1972

A. Calamand, J.R. Lemley
Secretaries

IAEA NUCLEAR DATA SECTION, KARNTNER RING 11, A-1010 VIENNATABLE OP CONTENTS
page
4CM/viIl/l

Agenda as modified at the meeting

2

4CM/VIII/2

List of Participants

4

4CM/V1II/MIN

Summary Minutes

5

4CM/Vlll/X4

Technical Details of EXPOR

23

4CM/rai/X4/l

Fission-Yields Proposal

40

4CM/VlIl/X4/2

Fission Neutron Spectra Proposal

47

4CM/VIII/3

Review of unresolved actions from 7th 4C-Meeting . 50

4CM/VIII/4

MCSC Progress Report

4CM/VIII/5

CCBN Progress Report and Data-Request Statistics . 53

4CM/VIII/6

NDS Progress Report

71

4CM/VIII/7

CJD Progress Report

75

4CM/VlIl/8

MGSC Data-Request Statistics

86

4CM/mi/9

NDS Data-Request Statistics

88

4CM/VIII/IO

Status of Data-Compilation at the Centres . . . .

96

4CM/mi/ll

Status of MSTAR to EXPOR conversion (NDS) . . . . 101

4CM/VlIl/l2

Comments on EXPOR

102

4CM/VlIl/l3

Unresolved Items from 4C-Memos

106

4CM/VIII/14

Analysis of Errors on EXPOR Exchange Tapes . . . 108

4CM/VIII/15
4CM/VTIl/l6

Cumulative analysis of record types in EXPOR
transmissions. . . 110
WRENDA. Proposal
117

4CM/VIH/17''
4CM/VlIl/l8

Existing Programs and plans for automated dataa s *handling a t N D S . . . . 146
CINDA Publication Schedules
148

4CM/7III/19

List of Actions (exclusive of EXPOR details) . . • 150

4CM/VTII/2O

List of Recommendations (exclusive of EXPOR details)

51

152

4CM/rai/i
Agenda as adopted at the Meeting

I.

II.

Organization and Announcementsa)Introductory remarks and election of chairman and secretaries.

b)Consideration and adoption of agenda - meeting organization.

c)

Review of actions from last 4C meeting.

Working Policies and Coordination of Centersa)

Short progress reports from Centers.

b)

Recommendations to Centers from Nuclear Data Committees,
Steering Committees, scientific meetings or other bodies.

c) Users1 data requests and response by the Centers. Data request profile(experimental and evaluated)by iso-quant, requestor type (university,
industry, etc.) and field of application (re'actor, shielding,fusion, etc.). Standing requests.
c1)

III.

User response to information contained in EXFOR.

d)Completeness of compilation of data from recent experiments.

e)

Status of conversion from old experimental data files to EXFOR.

f)

Necessary improvements in the functioning of the Pour-Canter Network.

8)

Problems of obtaining basic measured data from authors (resonanceparameters vs. line shape).

EXFOR in Detaila)

Review of actions from last meeting and from 4C memos.

b)Experience with exchange-tapes.

c)

Checking and correction of entries.

d)Existing programs and plans for automated data processing making
use of EXFOR coded information.

e)Critical assessment of keyworded, coded and free text information.

f)Dictionaries;

proposals for alterations and additions, pending
4C-Memos and any other new proposals for additions.

g)

EXFOR-Manual;proposals for changes and additions, pending
4C-Memos, correspondence and any other new proposals.

h)

LBXFOR-Manual; proposals for changes and additions, pending
4C-Memos, correspondence and any other new proposals.

1h )Priorities in EXFOR compilationi)

Handling of important data outside the present scope of SXFOR,j)1) Fission product yield
2) Capture ^amna spectra3) fission neutron spectra
Other details pertaining to EXFOR.

IV.

V.

VI.

VII.

CINDA. in Detaila)Completeness and literature coverage of CIBDA (particularly report series).

b)

Report or. the new system at NDCC and DTIE.

c)

CIHDA as an EXPOR index.

d)Status of publication schedule and distribution.

RBHDA in Detaila)

Policy for the regular production of a world-wide RENDA within thecontext of the 4-Center cooperation.

b)

Technical details of the RENDA system.

Evaluated Dataa)

Published index and documentation.

a')Common evaluation procedures.

b)Technical details concerning the exchange of evaluated data
between the 4-Centers.

c)Archi\al files of evaluated data.

Trends and Developments in the Centersa)Statement from the Centers.

b)Possible extension of the scope of EXFOH data.

c)

Cross links RENDA-CINDA-EXFOR-EVALUATED DATA.

d)Information exchange on evaluation activities.

.e) Cooperation between the four neutron centers and the centers fornuclear structure and reaction data.

VIII.

f)

Cooperation in CODATA compendium on Numerical Data Projects update.

g)Compilation of standard cross-section values.

Conclusionsa)Summary, recommendations, and actions.

b)

Next meeting.

4CM/VIII/2

LIST OP PARTICIPANTS

National Neutron Cross Section Centre

V. MayS. Pearlstein

C.C.D.N., Nuclear Energy Agency

P. Frohner
H. Potters

Permanent Mission of the U.S.S.R. to
the I.A.E.A.

B. Kouvshinnikov

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

P. Attree
A. Calamand (Secretary)
C. Dunford (Chairman)
J. Lemley (Secretary)
H. Lemmel
J. Schmidt
Part times
P. Hirschbichler
L. Hjarne
M. Lammer
P. Manero

EIGHTH POUR-CENTRE MEETING

October 16 - 20, 1972

International Atomic Energy Agency, Vienna

SUMMARY MINUTES

I.

I.a

1.

Organization and Announcements

Introductory remarks and election of Chairman and Secretaries

Opening talk was made lay Schmidt, Dr. Kouvshinnikov, Scientific
Adviser of the Soviet Mission in Vienna, represented CJD in absenceof CJD staff members.

2.

The meeting elected Dumford as Chairman, Calamand and Lemley as
Secretaries, all three from NDS.

I.b

3.

Consideration and adoption of agenda - meeting organization

Pearlstein referred to Kolstad's letter which noted inadequacyof data transmission in EXPOR for 1970/71. A preliminary reply wasdrafted, and each Centre was to provide, for inclusion in the letter,statistics (Attachment 4CM/VlIl/lO) relating

to the backlog of untrans-mitted recent data and to the time lag between receipt and transmission of
new data.
4.

Amendments of the Agenda suggested in Manokhin's letter were discussed
and the Agenda revised accordingly by adding item VI a 1 "Common evaluation
procedures." Other minor revisions were also included and the revised
Agenda was adopted as given in Attachment 4CM/VlIl/l.

4CM/\TIII/MIN

I.c

5.

Review of actions from last 4G meeting

Lemmel introduced a list (Attachment 4CM/VTII/5) of uncompleted actions
from the last meeting. Most of these actions were resolved during themeeting or were renewed under appropriate agenda items.

6.

II.

Working Policies and Coordination of Centres

II.a

Short progress reports from Centres

Progress reports from each of the Four Centres are attached as
documents 4CM/VIH/4, 4CM/VIH/5, 4.CM/VIU/6, 4CM/V1II/7.
II.to

7.

8.

Recommendations relevant to the Centres from Nuclear
Data Committees. Steering Committees« scientific meetingsor other bodies.

Dunford introduced the following TNDC recommendations:a)to putolish a data request list for safeguards,

to)to consider the protolem of compiling fission neutron spectra,c)to publish the request list for fusion.

.

The Euratom Working Group on Reactor Dosimetry recommended:a)the free exchange of evaluated reactor dosimetry cross sections^to)that NDS take the lead in estatolishing standard values for reactor
dosimetry cross-sections.

9«

Frohner reported on the COIN Steering-Committee recommendations:a)Fission neutron spectra data should toe compiled in a 4C effort,to) When necessary, Centres could "encourage" an author to send data toy
writing to his superior.

10.

Pearlstein suggested to return this problem of obtaining data frommeasurers to the various nuclear data and advisory committees in case ofrecorded failure.

4CM/VIII/MIN

II.c

11.

Users' data requests and response by the Centres. Data
request profile (experimental and evaluated) by iso-quant,requestor type (university, industry, e t c . . ) and fieldof application (reactor, shielding, fusion, etc....).
Standing requests.

Various statistics concerning data requested from NNCSC, CCDN and
NDS by users appear in Attachments 4CM/VlIl/8, 4CM/vHl/5 and 4CMA1II/9.
The validity and contents of statistics were discussed. It was pointed
out that NDS and CCDN have no requests from industry. This may be because
industrial users request data from (national) laboratories which in turn
request data from the Centres. Hence industrial requests may appear aslaboratory requests. It was agreed that the services offered by the data
centres should be brought to the attention of potential users in industry.
NNCSC publicizes its services at the American Physical Society meetings.

II.c'
12.

Users response to information contained in EXFOR.

The Centres reported that in general users seem satisfied with thecontent and structure of the bibliographical information contained in EXFOR.

13.

A possible action was discussed: The Centres should agree on what
information is essential for EXFOR and for journal articles which reportexperimental data. This agreement should then be communicated to the editorsof all relevant journals.

II.d
14.

Completeness of compilation of data from recent experiments.

The Centres reported on their data coverage. NDS and M C S C believe they
have no backlog for data published since 1970 whose existence is known to them.
CCDN hopes to eliminate its backlog during the next 6 months.

15.

The Centres discussed what types of statistical information bestenable them to analyze and compare their work. It was agreed that the Center
heads should prepare for the next meeting a proposal on common quantities
and formats to be used in the future by all Centres in their statisticalreports. For the next meeting statistical reports will continue to be preparedaccording to the discretion of each Centre.

4CM/VIII/MHT

II.e

16.

Status of conversion from old experimental data files
to EXFOR.

NDS presented the status of conversion from MSTAR to EXPOR as
given in document 4CM/VlIl/ll.

M C S C stated that by the end of Jan/73

all old data will have been converted to EXPOR format and transmitted.
The Centres agreed that compilation of new data deserved higher priority
than conversion and transmission of older data.

II.f

17-

Necessary improvements in the functioning of the Four-Centre
network.

The Centers recommended that information of general interest be
communicated promptly to the other Centres, especially information whichmight affect operations or scheduling of work at another Centre. Further
discussion of the functioning of the Pour-Centre

network was related to

EXPOR.

18.

Lemmel expressed the following view: "In past letters and memos
there had been some concern that the EXPOR-system is not practical. However,such criticism seems only to refer to rather marginal items of EXPOR or todifficulties experienced during the set-up period. The complexity of the
EXFOR system reflects only the complexity of the compiled data. The realdifficulties encountered with the entries transmitted so far, were mainly
due to insufficient education and supervision of the compilers. Thesedifficulties are independent of the compilation or transmission systems
used."

19.

The meeting observed that the 4C-Memos have become an essential tool
to coordinate the different philosophies of data compilation and exchange
in a multilateral system like EXPOR and agreed upon the following new generalprocedures for sections of 4C-Memos which refer to data compilation and EXFOR.

4CM/VIII/MIN

20.

Guidelines for 4C-Memos:
1)

Contents of each memo will be summarized in a covering-page index.

2)

Each subject will begin on a new page to facilitate distribution
to the appropriate staff at each Centre for action.

3)

Items requiring 4C agreement will be flagged with a special symbolin the index and on the appropriate subject page.

4)

The 4C-Memo Number will appear on each page.

5)

All proposed changes and additions to the dictionaries} EXFOR manualand LEXFOR will contain, when possible, a revised entry in the formatof the appropriate document, in addition to the usual documentation.

6)

In case of discussion, the originating Centre is responsible forcollecting the points of agreement and issuing a final wording in theformat of the appropriate document(s).

7)

Proposals which do not evoke discussion will be entered after 4 weeks
by the Centres responsible for maintenance of the document in question.

8)

Updated manual pages documenting changes and additions will be issued
by HNCSC as X4-Memos to all Centres immediately following agreementon such changes. Complete dictionaries will be distributed by NDS
every 3 months. Intermediate dictionary update pages will be distributed
as in the past.

21.

It was agreed that from now on Centres will promptly acknowledge receipt
of each transmission tape - CJD by cable, other Centres by airmail.
II.g Problems of obtaining basic measured data from authors.

22.

The Centres noted the difficulty of obtaining basic data from authors
who give only resonance parameters or average cross sections insteadof

the point data. When requesting data, the Centres should, when possible,
emphasize a particular project or user so that authors will feel a senseof participation in some specific project. MCSC suggested that the Centres
advertise their services as part of a common international effort to compile,4CM/VlIl/tOT

evaluate and disseminate information in useful form to an international
community of users.

III. EXPOR in detail
III.a

23.

Review of actions concerning EXPOR from the last meetingand from 4C-Memos.

Lemmel reviewed unresolved actions from 4C-Memos (Attachment 4CM/VIII/13)
Agreements and actions are described below in the section marked 4CM/VIII/X4.
Ill.b

24.

Experience with exchange tapes.

An agreement was reached on Memo 4C-1/31 that subentries to be added
to a previously transmitted entry may now be transmitted accompanied only by
retransmission of the first subentry; other unchanged subentries need not
be retransmitted. NNCSC will revise page IX.2 of. the EXFOR manual appropriately.

25.

When a subentry is changed, a "C" will be included in column 80 of the
SUBENT records alter-flags will be used on individual records as at present.
Similarly, subentries added to an already existing entry will have "I" in column
80 of the SUBENT records. Centres will comply when their programming schedule
permits.

26.

it was agreed that in future the first subentry would also be included,
when transmitting corrections in other subentries.

27•

It was agreed that the programmers of each Centre will investigate
the possibility of retransmitting only the BIB section of a subentry. This
proposal is especially intended for transmission of revised BIB sectionsof subentries containing large data tables which remain unchanged. Proposals
will be presented at the next 4C-Meeting.

10

28.

Information to be given following keyword HISTORY was discussed.
NDS wanted every change to be documented under HISTORY whereas NNCSC wished
to document only important changes. Agreements reached appear in the LEXPOR
entry of Attachment 4CM/VIIl/X4 (§ 35).
III.c

29.

Checking and corrections of entries

NDS introduced a chart (Document 4CM/VlIl/l4) which itemized typesof errors found in EXFOR transmissions from all Centres. The Centres thought
this form of presentation would be useful in locating sources of error andrecommended preparation of similar charts for future meetings.

30.

In view of its large number of errors on ID and/or counts in system
identifiers, CJD was asked to check these items more carefully in the future,
because such errors make processing of EXFOR tapes very difficult. (Supplementary notes According to information from V. Manokhin, appropriate programs
have been in operation since summer 1972- so that errors in the I.D. are now
avoided).

31.

Memo 4C-4/18 was discussed, and the meeting emphasized that TRANS tapes
must be corrected by the originating Centre.

32.

It appeared that check programs could considerably lower the error
rate by cross-checking iso-quant vs data-unit, certain iso-quant modifiers
vs. data-headings (e.g. DA vs. ANG), residual nucleus vs. iso-quant, data-units
vs. data-heading,etc.
Ill.d

33.

Existing programs and plans for automated data processing making
use of EXFOR coded information.

Lemmel presented the programs to be developed in the future at NDS (seedocument QC/VUl/Yl). None of these future programs will require more
EXFOR keywords or codes but on the other hand they will make crucial a correctentry of STANDARD. Before starting work on the details of a "computation
format", NDS will try to minimize differences with possibly equivalent formats
elsewhere. Pearlstein noted that he foresees the use of coded information to11

4CM/VIII/MHT
produce data indexes.
IlI.e
34.

Critical assessment of keyworded, coded and free text information

NDCC, NDS and CJD preferred to cancel dictionaries 15 and 18-23;
KKCSC pointed out that some basic codes on method information are desirable
for automated production of BNL-325 and BNL-400. This was recognized by theother centres, and NNGSC was asked to submit condensed versions of dictionaries
18, 19, 21-23. It was agreed to cancel Dictionaries 15 and 20.

35*

Preliminary versions of the condensed dictionaries appear in section

4CM/VIII/X4.

36.

Ill.f

Dictionaries! proposals for alterations and additions, pending
4C-Memos and any other new proposals for additions.

Ill.g

EXFOR-Manual1 proposals for changes and additions, pending
4C-Memost correspondence and any other new proposals.

Ill.h

LEXFORs proposals for changes and additions, pending 4C-Memos.
correspondence and any other new proposals.

Items III e-h are presented in detail in Attachment 4CM/VTl/X4.
Ill.h137•

Priorities in EXFOR compilation.

The Centres agreed upon the following priorities for transmission of data
to the other Centres in EXPOR format:
1)

Data for the fissile and fertile nuclides.

2)Standard cross sections.

3)

Data required for dosimetry, specifically relevant (n,p), (n,alpha)and (n,gamma) cross sections.

38.

KNCSC made the following announcements related to publication of therevision of ENL-325:a) For the next year priorities at HWCSC will be entirely determinedby the production schedule for BNL-325.
b)

During December and January, M C S C will prepare the film covering
data for the heavy nuclei.

124CM/VIII-MIN

39•

Immediate transmission of data for the heavy nuclei by the otherCentres would make the Book more complete. KNCSC will distribute the publication
schedule for ENL-325 in a 4C-Memo so that other Centres can coordinate datatransmissions appropriately.
Ill.i
1)

40.

Handling of important data outside the present scope of BXFOR.

Fission product yields and other important fission product data.

The original proposal by NDS for compilation of fission yield data^ which
had been previously distributed in Memo 4C-3/42, was adopted with only minor
revisions. Until final manual pages are issued, compilation should proceed
according to the proposals of Memo 4C—3/42. Since most of the large quantityof existing data are conveniently summarized in published review articles(e.g. Walker, AECL-3037, Part I ) , or in articles currently in preparation, only
data which are not included in or which are produced subsequently to thesereview articles need be compiled with high priority.
2)

41 •

Capture gamma spectra

The proposal by CCUtT (reported in Memo 4C-2/3O, 31) was provisionallyaccepted. A LEXFOR entry from NWCSC is expected which will specify the datatypes to be compiled and additional quantity codes if needed. NTTCSC should
also investigate priorities for compilation as well as coordination of effort
with other groups who compile gamma-spectra data.
3)

42.

Fission neutron spectra

The Centres agreed to compile fission neutron spectra data.
Memo 4C-3/64 was accepted with minor modification (see Section

134CM/VIII/MDT

III.j

43.

Other details pertaining to EXPOR

See Section 4CM/Vlll/X4»

IV. CINDA in detail
IV.a
44.

Completeness and literature coverage of CINDA

Continuing publication of CINDA depends on the sale of sufficient
copies (including bulk orders) which in turn depends on complete literature
coverage. For the present it appears essential that NEA and the USAEC do not
reduce the number of copies in their bulk orders.

45.

Lemmel presented a detailed report which analyzed literature coverageby each CINDA centre. As reported at the 7th 4C Meeting, certain important
report series continue to be the most serious omissions in all CINDA service
areas. But also some journal articles and conference papers were found to be
missing. This indicates that the systematic covarage control for new literaturemust be intensified at all CINM centres. Lemmel suggested to include in
CINDA-73 a list of themost important periodicals together with the lastissue scanned.

46.

The more complete coverage of USSR laboratory reports and CJD publications,which was announced at the 7th 4C Meeting, has not yet begun. CJD expects
to eliminate its CINDA. backlog by May 1973- Entries will be prepared in the oldformat until the new system becomes operational.

47•

Probable reasons for incomplete coverage of the literature are1)

insufficient staff

2)

inadequate checks on coverage by the CINDA centres because of competing
duties such as programming and system development.

48.

Pearlstein was asked to discuss with appropriate authorities thepossibility of increasing the U.S. CINDA effort to cover adequately U.S.
and Canadian literature, especially laboratory reports. He also stated that14

4CM/VIII/MIN

NNCSC has the responsibility for the literature coverage for neutron datameasurements.
49*

It was agreed that any increased resources for CINDA. should be used primarily
to improve literature coverage rather than to clean up the file. The new
systems developed at NDCC and DTIE, however, will offer increased
capabilities for editing and reorganization of the file.

IV.b
50.

Report on the new system at NDCC and DTIE

Frohner reported that the new CINDA system is expected to be operational
next year. Programming for the core of the system is completed, but
supplementary programs, including those for output and checking of input
are still in the development stage. A preliminary Readers' Manual has been
written by N.Tubbs, and a final version will be prepared when the system iscomplete. Some delay in conversion of the old file to the new file format may
occur because of the significant number of old-file entries which must be
manually converted. Few CINDA entries will continue to be prepared in the oldformat and can be machine-converted when the new system becomes operational.

51 •Attree requested that Tubbs send his CINDA-input check-program to NDS
as an aid in rewriting the NDS checking programs for the new system.

52-

The NDS Linotron program currently operates under the IBM "DOS" system,
which will be frozen and available only at low priority in the first halfof next year. All NDS CINDA programs will be rewritten only once to accomodaie
both the new CINDA system and the new computer operating system ("OJ?); thus
a long delay in the introduction of the new CDIDA system could cause extreme
inconvenience.

IV.c
53 •

CINDA as an EXPOR index.

A data index line will be added to a block of reference(s) having thesame Z-A-Q, Lab, "block number". At CCDN it is envisaged that data index lines4CM/VIII/MIN
will be added automatically by extraction from the NEUDADA index; at
NDS they will be added by hand until machine blocking has proven to be
successful. CCDN is asked to distribute soon a detailed proposal specifying
how data index lines will be produced automatically.

IV.d

54«

Status of publication schedule and distribution.

Because of the heavy work load placed on the IAEA Publication Divisionby the Proceedings of the 71 Geneva Conference, CINDA 72 was not distributed
until October 1972 even though the Linotron processing had been completed
in May. A conference with the Director of the Publication Division was held
to discuss the 1973 schedule and prevention of such delays in the future.

55*

NDS plans to publish a complete volume and a supplement each year
so that up-to-date information becomes available every six months. The
publication schedule for CINDA 73 appears in Attachment 4CM/VlIl/l8; processing
will presumably be done under the new CINDA system.

V.

V.a

56.

RENDA in Detail

Policy for the regular production of a world-wide RENDA within thecontext of 4—Centre Cooperation.

The Pour Centres agreed to cooperate in the production of RENDA
which will be called WRENDA, on a world-wide basis as summarized below basedon the detailed proposal submitted for consideration by Attree and Dunford(Memo 4C-3/62).

57.

The request list will consist of officially screened nuclear data
requests submitted by responsible authorities. These data requests will bemaintained as a single file of information including all types of nuclear
data and application fields. The system is designed to be open ended to permit

164CM/VIII/MIN

extensions of the system to new application fields and new nuclear data
types
58.

not currently allowed in the present RENDA.

A major new feature of this proposal is a "blocking system" for similar
nuclear data requests. The "blocking" criteria are the following : l) Target(Z and A ) , 2) Projectile, 3) Reaction. Data grouped in this manner represent
a "measurement request" in the sense of the users of a request list. In
general status comments apply equally to all the requests within a block.
It is strongly felt that a logical grouping of the data such as proposed here
will improve the comprehension and credibility of the WRENDA publicationand ease the workload for the subject reviewers.

59.

The operation of the WRENDA system will be carried out within the
Pour Centre framework. Each centre will be responsible for the communication
with the screening authorities within its service area and for preparing
coded entries (new or revised) for the nuclear data requests from its service
area. These data will be forwarded to the NDS in the WRENDA transmission
format described in the appendices of this document. The Nuclear Data Section
will maintain the WRENDA master file and publish the WRENDA document fromthis file.

60.

NDS provides the four centres with country retrievals which can be
forwarded by the Centres to the appropriate reviewing authorities. New
and Revised requests will be encoded by the Pour Centres as well as any
changes to the Status Comments and forwarded to NDS. Specialist review
activities will be handled entirely by NDS. Specialists will no longer berequested to review individual requests but only the data groups or "blocks"
previously described. Specialist comments will be encoded by NDS and integrated
into the Status file.

61.

The conversion of the present

RENDA file held by CCDN will be done

by NDS by the time the first "country" retrievals are scheduled for the
initial review by the local screening authorities. This initial review
of WRENDA will also be used to validate the converted entries.

174CM/VIII/MIN

62.

Extensive discussion of an operational schedule and details of the
WRENDA transmission format followed. This discussion included an alternative
format presented by Frahner (Memo 4C-2/33). A revised transmission format
was adopted and appears in Appendix 4OM/VlIl/l6. It contains the technicaldetails, revised entry forms and dictionary modifications which were agreed
upon at the meeting. The annual production of WRENBA after 1975 appears
feasible if new requests are submitted in parallel with the status reviews.
The NDS is to contact the INDC for advice on this matter.

63.

It was agreed that the meaning of requested accuracies should be
discussed further by the Centres and by the HfDC. Until a common understanding
is reached, WRENDA must include necessary qualifying and explanatory
information. [Note: It was recommended at the EANDC Meeting, November 1972,
to eliminate reviews by subject specialists. Details to be supplied separately.]

VI.

VI.a
64•

Evaluated Data

Published index and documentation.

Lemmel reported on possible use of CINDA as an index to evaluateddata. Even with the new system it would be impossible, and perhaps undesirable,
to include in the CINDA file all the information in an index such as CCDN
Newsletter 14* In order to increase the versatility of the CINDA system foraccommodation of additional types of information, the Saclay CINDA centre
was asked to consider the possibility of allowing more than one comment
line per data-index line.

^5«

A critical review of the contents of evaluated data files and brief
description of computer programs to manipulate or translate these files has
been prepared by T.A. Byer and is ready for publication. If such review
proves useful, it should perhaps be continued on a regular basis.

18

4CM/VIII/MIN

66.

NNCSC strongly requested that indexes

and other descriptions ofevaluated data be prepared exclusively from information contained on the
distribution tapes or released with the specific approval of the originating
centre. Inclusion of information obtained from informal communications cancause confusion.

VI.a 1
67.

Common Evaluation Procedure

The Centres noted that they have already exchanged several evaluateddata files originating in each of the service areas and that these files
should be useful for analyzing different evaluation techniques andphilosophies.

68.

It was agreed to refer this topic to the HTDC for their further
consideration. The Centres thought that they could assist groups such as
the INDC or a second Panel on Evaluation Techniques who might wish to study
common evaluation procedures.

VI.b
69.

Technical Details concerning 4C exchange of evaluated data.

Lemmel requested that the other Centres send together with evaluateddata files, certain supplementary information such as 2200 m/sec values,
20 C Maxwellian average cross sections, and resonance integrals since thisinformation probably exists for most evaluated data files. Pearlstein confirmedthat this information does exist for the E N D F / B files which have been released
and promised to send it. CCDN calculates such information only when it isspecifically requested.

70.

In order to transmit in computer-compatible format unusual types of
evaluated data which do not conveniently fit the established formats suchas ENDP,UK or KEDAK, NDS suggested that such data be transmitted in EXFOR
format, but outside the normal EXFOR transmissions of experimental data. Suchevaluated data received at NNCSC, if important, would be put into the E N D F / A

19

4CM/VIII/MIN

library and distributed in that format. Requests to C C M for evaluation which
are not part of an evaluated data library would, with permission of theauthor, be sent in NEUDABA transmission format.
71•

Exchange of data necessary for dosimetry was briefly discussed as apossible extension of the present scope of evaluated data exchange.

VI.c
72.

Archival files of evaluated data.

At present all Centres do in fact retain earlier evaluations inretrievable form. No binding agreements to continue to retain old evaluations
were made.

VII.
VII.a
73•

Trends and Developments in the Centres

Statements from the Centres

With the cooperation of Schett at CCIM, Liskien and Paulsen plan to
publish a new computer produced atlas of threshold reactions by the endof 1973• This atlas will include only experimental data. There are no plans
for a permanent commitment to update this atlas on a regular basis.

VII.b
74•

Possible extension of the scope of EXFOR data.

Only the previously discussed agreements to include data on fission
yields, fission neutron spectra and gamma spectra were mentioned. See

4CM/VIII/X4, 4CM/VIH/X4/1 and 4CM/\TIIl/X4/2.
VII.c
75*

Cross links between RMDA.-CINTiA.-EXFOR-evaluated data.

There was no discussion in addition to that which appears under theindividual topics.

VII.d
76.

Information exchange on evaluation activities.

COIN has assumed responsibility for publication of the EANDC "Ribon
Newsletter". The subject of an international newsletter for evaluation
activities, to be published by NDS, will be discussed further at the next
INDC meeting. It was felt that IHDC might wish to discuss extension of20

4CM/VIII/MIK

coverage and distribution of evaluation newsletters if significant quantities
of evaluated data become available from other sources in addition to the
ENDF,UK and KEDAK libraries.

VII.e

77.

Cooperation between the Four Centres and centres for nuclear
structure and reaction data.

Hjarne reported that an informal meeting of some members of INDC andof the International Working Group on Nuclear Structure and Reaction Data
[IWGNSRD] would be held in Saclay immediately following the March 1973
Symposium on Applications of Nuclear Data in Science and Technology.

78.

If INDC approves establishment of the newsletter proposed by IWGNSRD,
the Pour Centres might wish to participate.

VII.f

79•

Cooperation in CODATA compendium on Numerical Data Projects
update.

In this Compendium CODATA publishes short descriptions of data compilations
and evaluations in all fields. NDS promised CODATA to coordinate contributions
from the Pour Centres concerning neutron data compilation and evaluation.
Schmidt will inquire about guidelines and deadlines for the next edition ofthis Compendium.

VII.g
80.

Compilation of standard cross-section values.

NDS briefly discussed plans to compile up—to—date values for crosssections which are used as standards. These standard cross sections would be
used for computer renormalization of data sets on a consistent basis foruse with a proposed "computation format", which is described in Attachment

4CM/VlIl/l7.
81.

HNCSC recommends that specific unreleased evaluated data sets which areneeded can be requested with the understanding that USAEC approval must be
obtained. One approach is to direct a request simultaneously to HNCSC and
USAEC.

21

4CM/VIII/MIN

VIII.
VIII.a82.

Conclusions

Summaryt recommendation and actions

Lists of actions and recommendations from this meeting with references
to the Minutes and the Attachments are included in Attachments 4CM/VIII/I9
and 4GM/V1II/2O. In order to promote better preparation for Pour-Centre
meetings, it was recommended that the list of actions from this Meeting
be recirculated by NDS two months prior to the next meeting. Hew proposals
should be distributed by the originating Centre at least two months prior
to the next meeting. If this is not done, major new proposals cannot be discussed
properly at the meeting.
VHI.b
Next Meeting

83.

Kouvshinnikov invited the Centres to hold their next meeting in Moscow.
After discussion Kouvshinnikov was asked to report to the State Committee
on Atomic Energy the following recommendations from the Meeting.

84.

l)

The meeting should be for five (5) days - Monday through Friday,
4-8

June 1973» i.e. immediately following the Kiev Conference on

Neutron Physics.
2)

Wednesday and Thursday should be spent at FEI, Obninsk, in contact withthe technical staff of CJD.
Some plenary sessions, particularly those pertaining to technical andadministrative details of 4C cooperation, could also usefully be heldat PEI, Obninsk.

3)

Some participants expressed the desirability of discussions with neutron
data evaluators from FBI, Obninsk, and other institutes.

85*

Further details and any apparent conflicts will be worked out incorrespondence with the State Committee.

86.

All participants thanked Kouvshinnikov for representing the Obninsk
Centre on short notice and wished Dr. Manokhin, the scheduled participant,a speedy and complete recovery from his sudden illness.
22

TECHNICAL DETAILS OF EXFOR

This document gives the detailed list of changes and additions which
wereagreed upon at the meeting. It is intended as a tool to define

clearly who has to do what where.

Many agreements affect both parts of the manual (in several places)
and the dictionaries. In order to allow easier and faster updatingby the relevant Centres, we have tried as much as possible to list
specifically the actions under three categories:
EXPOR manual, LEXFOR, the DICTIONARIES. A fourth category, Proposals
and General Recommendations, includes other actions and considerations
pertaining to EXFOR.

NNCSC will assume all the actions listed under EXFOR manual andmost of the actions under LEXFOR; NDS will update the dictionaries.
However, in view of the close interconnections existing between
both manuals andthe dictionaries, NNCSC and NDS will carefully

review the four categories in order to detect possible omissions in
the lists of actions for which they are responsible.

234CM/VIII/X4

X . EXFOR Manual

The following actions will be carried out by NNCSC.
1. Update pages VIII.3-4 to the following:

Keyword categories:
In the following list of information-identifying keywords certain
flags indicate which keywords must, or need not, be present andwhich keywords must, or need not, be followed by coded informations

0
*
*
*
*
*
*
0
0
0
0
0

0
*

TITLE
AUTHOR •• ®
INSTITUTE
EXP-YEARREFERENCE
ISO-QUANT
NUC-QUANT
CMPD-QUANTSTANDARD (Z-S-A,14)
METHOD ()(21)+
FACILITY (18
DETECTOR (22ANALYSIS (23 +N-SOURCE (19)+
INC-SPECTSAMPLE
PART-DET |[13B
EN-SECRESID-NUC
CORRECTION
ERR-ANALYS. (DATA-ERR)COMMENTFLAG f l l
TABLE-NR ® C ,STATUS (16)+
HISTORY Bfsee

24

4CM/VIII/X4
Explanations:
It

This keyword must always be present, (incidentally, allof these keywords must always be followed by coded
information in parantheses as indicated by %

0

J

).

This keyword must always be present except when it is
not relevant. For explanation of "not relevant" see in
LEXPOR. For example: ERR-ANALYS is "not relevant" forquantum - numbers.

(|

If the keyword is present, coded information in parentheses must be given. C 3 B

refers to the relevant

dictionary, nr. 3. In other cases an example of coded
information is shown in the table.

(19)+

Either free text or coded information in parentheses plus
possibly free text may be given. The number refers to therelevant dictionary. If a pertinent code in the relevant
dictionary exists, then keyword and code should be given.
The "+" sign indicates that the coded information inparentheses must be repeated in the free text. For details
see the following pages and in LEXFOR.

Special cases:

ISO-QUANT
NUC-QUANT and
CMPD-QUANT:METHOD
FACILITY,
DETECTOR and
ANALYSIS

One of these three keywords must be present; they aremutually exclusive.
At least one of these keywords must be present; if a pertinentcode in the relevant dictionary exists, then keyword and codeshould be given. It is advisable that all four of these keywords
be given except when not relevant. For example: FACILITY is"not relevant" for spontaneous fission data.

PART-DET:

The particle detected must be evident either from ISO-QUANT
or from PART-DET.Examples: a proton detected in an NP reaction
is regarded as evident from the ISO-QUANT; a proton from an
NNP reaction is not. For details see the LEXFOR-entry25

4CM/VIII/ X4

STATUS:The keyword STATUS is not relevant, only when the sourceof the data is given under REFERENCE and no other STATUS
information applies, (in NDS entries this keyword is always
present).

STANDARD

The compiler should treat these items with special care, andand
ERR-ANALYSIS w ^ e r e v e r necessary, he should request further informationfrom the author.
(GEOMETRY)This keyword is obsolete but may still exist in old entries.

2. These changes on pages VIII.3-4 require many corresponding
modifications in various places of both manuals.
3. Take care of the Manual corrections from Memo 4C-3/6O.
4. Add on page VIII.5, that for a 6 character lab-code when the
7th character would be blank, the closing

parenthesis can be written

either (lUSAGA) or (lUSAGA )5. Add on page VIII.12, that no blank within the parentheses of one
isoquant unit is allowed.
6. Add on page VIII.14, that blanks are allowed between units of
ISO-QUANT combinations.
7. Add on page VIII. 15: "The iso-quant separator "+11 does not always
mean a mathematical sum."
8. Since the dictionary 15 (standards) has been cancelled, many smallchanges are required in both manuals.
9. The same with the cancelling of dictionary 20 (sample).
10. The same with the cancelling of the modifier DRT.
11. Add in chapter VI of the Manual (Data Table Section):"Every line in a data table must give data information. This meansfor example that a blank in a column headed DATA is only permitted
when another column contains the data information on the same line,
e.g. under DATA-MAX. Supplementary information such as resolution or
standard values must not be given in a line of a data table, which
has no data information. In all fields except the independent
variables, blanks are permitted."26

4CM/viIl/x4

12.

Add on page IX.4 the proposal in second paragraph of Memo 4C-2/23
about new proposals.

13.

Add on page I I . 6 the agreement on a l t e r - f l a g s in ENTRY and SUBENTRY
records (see paragraph 24 of the Summary Minutes).

14.A.

The extinct flag i s dropped from the d i c t i o n a r i e s , t h i s requiresa change on page VII.3

14.B.

On page VIII.16 of the Manual the wording under CMPIV-QUANTi s incomplete. The "three r u l e s " of page 4 and the second
half of paragraph 1 on page 5 of Memo 4C-3/34 must be added.

27

4CM/VIII/X4

1Z. LEXFOA)

New LEXFOR entries

15.

Potters (CCIN) will submit a LEXFOR entry on the use of the RAW
modifier.

16.

Following correspondence with Crouch of Harwell, revision of theoriginal NDS proposal given in Memo 4C-3/42, concerning compilationof fission products yields, was notnecessary and the proposal

was adopted with minor corrections as given in appendix 4CM/VIII/X4/1•
HNCSC will enter it in LEXFOR.
17•

NDS proposal on fission—spectra datawas

accepted with modificationof first paragraph. It will be entered in LEXFOR as given in appendix
4CM/VIII/X4/2.
18.

Lammer (NDS) will submit a LEXFOR entry on experimental methods forfission-productyields.

JJNCSC will prepare the following LEXFOR entries:
19«

Entry about all Polarization and Asymmetry quantity-codes.

20.

Entry about Multilevel Resonance Parameters.

21.

Entry giving a list of strictly monoisotopic elements. For suchelements A=0 is forbidden. LEXFOR should also give a list of nearlymonoisotopic elements, where A is left to the discretion of the compiler.

22.

It was finally agreed that the flag for independent variables in
dictionary 24 (column headings) will be kept and NNCSC will provide a28

•1CT.T/VIII/X4

LEXFOR e n t r y on independent v a r i a b l e s .

B)Changes or additions to already existing LEXPOR entries

TOtfCSC will make the following changes and/or additions to LEXFOR:
23.Prepare a new STATUS entry. This keyword is now only compulsory whenrelevant. Codes PUBL and PRIV are deleted. Also change under 6 t o :" • . . Data werethen converted from SCISRS-1 or >TEUDADA."

NNCSC i s also to enter an explanation of the status-code UNOBT.
24.

Add under "Particles" the definition of "decay-gammas" (DG) as in
4C-3/57. Also the new code ( B ) should be defined here.

25.

Add under "Nonelastio" a note that the compilers may have sometimes
entered "nonelastic" for " i n e l a s t i c " , when they did not know whether
another reaction was present.

26.

Under "Quantum Numbers", remove the wording "or of nuclear level"
under "Parity".

27.

Correct under "Errors" part a . ) : EN-ERR = . . .
. . . " n o t to be confused with energy-resolution EN-PSL". (instead of"confounded with').

28.

The fact that the dictionary 15 (standards) has been cancelled, recruires
many small changes in both manuals, for example in LEXPOR under"Differential": in example 3 take out "enter (RATIO) under STANDARD."
See also paragraph 38 of t h i s appendix.

29.

The same with the cancelling of dictionary 20 (samples).

30.

The same with the cancelling of the DRT modifier.

31•

Under "Angle", take out the sentence "If another angle i s

32.

Under "CINDA-quantities", take out under SF/NU: "Cinda: target nucleus,

raeant..."Exfor: compound."33«

When the modifier MXW is present, the spectrum temperature must be given
in free text under INC-SPECT. This requires a change in LEXFOR under4CM/VIII/X4"Spectrum Average". Add in the same LEXFOR entry:"The modifier MXW must always be used with EN-DUMMY= 0.0253 eV.
Other than thermal maxwellian spectra are entered with the modifiers
PIS or SPA."

34• Wave-length: See Paragraph 66

35.

Under "NODATA", correct

the end of first paragraph to:"...data which will be entered into the system with extensive delay
or not at all."
Add at the end of second paragraph:"Also the date when the data are expected to be released should be given,
if known, or, in the case when data will never be released, the reason
should be given."
36.

Since the quantity-code ACT is cancelled, the LEXFOR entry "Activation"
needs

37*

revision.

Insert under "HISTORY", following the second paragraph:"In particular it is desirable to document under HISTORY important
corrections or revisions to an entry or subentry. Such importantalterations are flagged with the code A following the date. The purposeof this flag is to automate

as far as possible follow—up actions

resulting from the alteration, such as updating of an index, or informing
data users who had received the earlier version.

The following items are consideredwith A:sufficiently important to be flagged-

any change in the numbers given under COMMON or DATA-

any change of the meaning of these numbers (e.g. due to change of
ISO-QUANT, units, the iso-c^uant under STANDARD, etc)30

- any other change that the compiler considers important enoughthatearlier recipients of the entry should be informed.
"Less important changes which the compiler wishes to document may bereferenced following the code "U". NDS compilers are urged to document
all changes under HISTORY".

The following examples should be added on the same LEXFOR-page:"(721017A) Some mispunches in data table corrected.
(72II3OU)

Spelling error in BIB section corrected. "'38. The LEXFOR entry "Standard" was changed to the following:(essential changes are marked in the left hand margin; in addition all
information about the Standards dictionary was omitted).
"Standard"Standard information can be entered either in free text under the keyword

STANDARD or in computer-intelligible form ,with or without free t e x t .
In the latter case the numerical data of the standard used is enteredin the COMMON or DATA s e c t i o n under the d a t a - h e a d i n g keyword'STAND1 ;isotope and quantity of the standard are entered under the keyword

STANDARD following the same rules as for ISO-QUANT. I t i s desirable toinclude in the free text the bibliographic reference pertinent to thestandard used.
The keyword STANDARD must be present, except when it is not relevant ,asfor those quantities which are*usually obtained without a standard, that is:resonance-parameters except resonance areas, peak cross sections andsimilar quantities (if cross-reference is made to EXPOR-subentry containing
the data from which the resonance parameters were deduced);*

the quantities STF, D, LDP, TEM, SCO, RAD, TOT;*

ISO-QUANT ratios;*

if the modifiers REL,RS.,RSL,RBT or others that exclude a standard have been
used.

For all other quantities

that can usually be measured either with astandard or absolutely,the positive statement ABSOLUTE in free text is31

4CM/VIII/X4

pertinent information to the user of EKFOR and should therefore be
included. It should be noted however, that so-called "absolute" data
often nevertheless depend on the assumption of certain numerical values(e.g. for calibrations or corrections); it may be desirable to give suchvalues in free text under STANDARD. For more complicated descriptionofstandards or normalization procedures a cross-reference to publishedliterature may be sufficient.
Cases how standard values can be entered in computer-retrievable form:
1.
2.
3.

(unchanged as previously)

4.
38A. NNCSC will revise the entry on Analysis to include explicitely thefollowing information:
Resonance-parameters require an entry under ANALYSIS explaining how
they have been obtained. "Single level" or "multi-level" must -begiven in coded form, and a more precise definition of the analysis
is desirable in frep text, at least in the form of a cross—reference
to the literature where the analysis description can be found.
1OTCSC will also revise appropriately

existing entries on resonanceparameters and include the above information in the proposed entries
on resonance parameters for which it has responsiblity.
38A. 1. Many corrections to LEXFOR indicated in Memo 4C-3/59 must still be made.

32

4CM/VIII/X4
The indicated Centre is responsible for drafting or outlining thefollowing revisions which will then be entered in LEXFOR by NNCSC.
38B. CCDN will revise the entries on Two-dimensional Tables andfitting coefficients to include the following information:
Two-dimensional tables of fitting-coefficients can be transmitted,
on a trial basis, in one single subentry in the following form:
DATA
EN
EV

150.
150.
150.
150.

I85.
I85.
I85.
I85.

NUIffiER
N0-DIM
0.
1.

DATA

DATA-ERR

2o

3.
0.
1.
2.

3.

For the time being, centres may transmit in either the old or the
new format.

Centres should collect experiences and test to whatfurther kinds of data this new format can be extended.
CCDN will also prepare a Memo considering the flagging of independent
variables in connection with two-dimensional tables.
38C. ND3 expressed the desirability of giving in EXFOR a complete
bibliography which would include progress-reports and duplicate
publications.

It is particularly essential to give a warning infree text when references include superseded data.

NDS will submit

an appropriate LEXFOR entry.

33

)\ \

Dictionaries¥DS will carry out the following actions.
39.

Revise dictionary 2 according to the new keyword categories (see paragraph
1 of the present appendix). The category flags will be removed from the keywords, but the free text will give brief information about the use of the
keywords and their codes.

40.

The meaning of the code 'ft"must be changed in dictionary 2 under HISTORY
to "important alterations", and a codeU

for "unimportant alterations"must be added.
41.

The extinct flag is to be dropped from the dictionaries.

42.

The PAR modifier shall be restricted to the specific meaning of "leaving
the residual nucleus in a specific level or emitting a specific gamma or
particle group". Modify dictionary 12.

43-

The modifier BRT wascancelled. Correct dictionary 12.

44.

The quantity-code ACTwas dropped.
Update dictionaries 10 and 14»45.

Add to Diet.1/1 NU,DA,PAR/RSD as corrected in Memo 4C-2/31
FU,AKE/DA
SCT/ARE
KP,RES,TER (as it stands).
•,G,RES must be combined with ISO-QUAUT (Not NUC-QUANT), correct diet. 14 page 7

46.

The dictionaries 15 (standards) and 20 (samples) are cancelled,47..

Codes PRIV and PUBL are deleted from dictionary 16 (Status)

34

48.

Dictionary 18 (facility) was reduced to the following:
CCW
LINAC
ICTR
VDG
VDGT
CYGFF
CYCLO
SYNCH
BETAT
MICRT
DYNAM
OSCIP
CHOPP
CHOPS
SELVE
SPECM
SPECD
SPECC

49*

COCKCROPT-WALTON ACCELERATOR)LINEAR ACCELERATOR)INSULATED CORE TRANSFORMER ACCELERATOR)VAN DE GRAAFF)TANDEM VAN DE GRAAFF)CYCLOGRAAFP)CYCLOTRON)SYNCHROTRON)
BETATRON)MICROTRON)DYNAMITRON)
PILE OSCILLATOR)FAST CHOPPER)SLOW CHOPPER)(VELOCITY SELECTOR)MASS SPECTROMETER)DOUBLE MASS SPECTROMETER)
CRYSTAL SPECTROMETER)

Dictionary 19 (neutron source) was reduced to the following!
PHOTO
POLNS
P-D
P-T
P-BE
P-L17
D-D
D-T
D-LI
D-BE
D-C12
D-C14
D-N15
A-BE
PU24O
CM244
CF252
EXPLO
EVAP
REAC
THCOL

(PHOTO-NEUTRON) GENERAL(POLARIZED NEUTRON SOURCE)
PROTON-DEUTERIUM)
PROTON-TRITIUM)
PROTON-BERYLLIUM)
PROTON-LITHIUM 7 )DEUTERON-DEUTERIUM)
DEUTERON-TRITIUM)
DEUTERON-LITHIUM
DEUTERON-BERYLLIUM)
DEUTERON-CARBON 12)
DEUTERON-CARBON 14)
DEUTERON-NITROGEN 15)
ALPHA-BERYLLIUM)SPONT.FISS.PLUTONIUM-24O)
SPONT.FISS.CURIUM-244)
SPONT.FISS.CALIFORNIUM-252)
NUCL.EXPLOSIVE DEVICE)
EVAPORATION NEUTRONS)REACTOR)THERMAL COLUMN)

35

4CM/VIII/X4

Codes of dictionary 21 (method) are reduced to the following
CO INC
DIFFR
REPL
MAGPR
TOP
SLODT
CADMB
MANGB
ACTIV
REAC
BURN
ASSOP
PLSED

51.

(CADMIUM BATH)(MANGANESE BATH)(ACTIVATION)(REACTIVITY MEASUREMENT)(BURN-UP)(ASSOCIATED PARTICLE)(PULSE DIE-AWAY)

Codes of dictionary 22 (detectors) are reduced to the following:
GLASD
TRD
SOLST
GELI
THRES
MOXR
HORBU
SCIN
STANK
MTAHK
CSICR
NAICR
PISCH
LONGC
PROPC
TELES
BPAIR
PHD

52.

(COINCIDENCE)(DIFFRACTION)(TOTAL REFLECTION PROM MIRRORS)(MAGNETIC FIELD ROTATION)(TIME-OP-PLIGHT)(SLOWING-DOWN-TIME)GLASS DETECTOR)
TRACK DETECTOR) ALL WHICH ARE NOT GLASSSOLID-STATE DETECTOR)GERMANIUM-LITHIUM DETECTOR)
THRESHOLD DETECTOR)
MOXON-rRAE DETECTOR)HORNYAK BUTTON DETECTOR)SCINTILLATION DETECTOR)SCINTILLATOR TANK)MODERATING TANK DETECTOR)CESIUM-IODIDE CRYSTAL)
SODIUM-IODIDE CRYSTAL)FISSION CHAMBER)
LONG COUNTER)PROPORTIONAL COUNTER)
COUNTER TELESCOPE)
ELECTRON-PAIR SPECTROMETER)POR GAMMASPULSE-HEIGHT DISCRIMINATION)

Codes of dictionary 23 (analysis) are reduced to the following!
AREA
SHAPE
4PI1A
SLA
MLA

AREA ANALYSIS)SHAPE ANALYSIS)
4PI TIMES DIFFERENTIAL CROSS-SECTION AT ONE ANGLE)SINGLE LEVEL ANALYSIS)MULTILEVEL ANALYSIS)The dictionaries under items 48 to 52 are preliminary; the final versions
will be submitted by NNCSC, the other centers having no interest in themaintenance of these dictionaries.

364CM/VIII/X4

53- In dictionary 24 (data-headings) the data heading TEMP is restricted
to the meaning of "sample temperature".
54. The additions to dictionaries required by the agreement on compilationof fission yields will be made (see appendix

4CM/VIII/X4/1).

55* The additions to dictionaries required by the agreement on fission
spectra data will be made (see appendix 4CM/VIIl/x4/2).
56. The new keywords ELEMENT and MASS added to dictionary 24 (Dataheadings) will also have the flags for independent variables.
57• After extensive discussion, dictionary 8 (elements) stays as it
stands and the codes T and D are now forbidden.

Paragraph numbers 58, 59 a n <! 60 are unassigned.

374CM/VIII/ X4

Proposals and General Recommendations pertaining to EXFOH

61. HALF-LIVES
The following proposal arose from discussions at the meeting. It shall betreated and adopted in the same way as a proposal in a 4C-Memo. If discussions
arise in 4C-Memos, NDS will formulate the final version based on the discussion

Add in diet. 2 under ISO-QUANT:(Z-S-A-M) IP IT IS A METASTABLE STATE AND UNCERTAIN WHETHER FIRST ORSECOND ETC.

Add in diet. 2 a new keyword:
HALF-LIFE

TO EXPLAIN HALF-LIVES given in COMMON OR DATA. FORMAT EITHERFREE TEXT OR:(HL1, Z-S-A-M) WITH OR WITHOUT FR.EE TEXT.
If more than one half-life is given the relevant nucleus must
be coded under this keyword.
If only one half-life is given under HL and no explanation is
given under this keyword then the half-life of the residual
nucleus is meant.

Replace the data-heading keyword H-LIFE by:
HL, HL1, HL2, HL3 and HL-ERR etc for various half-lives.
Add in LEXFOR under HALF-LIFE an example, such as:
ISO-QUANT ((Z-S-A-Ml, NG,,MS)/(Z-S-A-M1, NG,,GND))(HL2,Z-S-A'-M)(HL3,Z-S-A'-G)
COMMON

HL1

HL1-ERR

HL2

HL2-ERR

MIN

MIN

YR

YR

HL3
HR

HL3-ERRHRThe LEXFOR entry should include: "The free text should contain whether thehalf-life value was measured by the author or assumed by author or compiler."4CM/VIII/X4

Paragraph number 62 is unassigned.

63.

The important fission data listed in Memo 4C-3/48 should be transmitted in EXPOR with top priority; in particular, it should beverified that the version transmitted is up-to-date. A few datatransmitted were already superseded at the time of transmission;
additional care should be taken that this is avoided.

64.

All Centers are asked to contribute LEXFOR entries about experimental
methods and other physics information useful for compilers. Such entries
should carry the name of the author. This may give useful information
about specific experts in the Centers.

65.

NDS wil^ prepare for next 4C meeting a shortened EXPOR manual to better
advertise the exchange format among data producers, customers, etc

66.

The following proposal was introduced at the Meeting, but discussion
has arisen in Memos 4C-1/32 and 4C-3/78

and will continue: at thenext meeting.
"Add under Wave—length:
The energy range of a table having the incident neutron wave-length
as independent variable, must not be given under EN-MIN

and EN—MAX

in the COMMON section, but may be entered in the first and last line of
the DATA table under KB."

39

4CM/VIIl/X4/l
Fission-Yields
To be entered in LECTOR:
Fission-Yields
Review-article see e.g. A.C. Pappas, J . Alstad, 691/TEMA, ,669,6907.
Fission-process; The capture of the incident neutron creates a highly excitedcompound-nucleus showing large deformation which leads to scission or to othercompeting reactions like neutron—evaporation or gamma—emission. At the scissionstage the nucleus generally devides into two deformed and excited fission fragments. In a small fraction of the scissions the nucleus devides into three fragments, where the size of the third fragment varies between a scission—neutron
and a fragment similar in size to the other two. (See_Ternary_Fission). Thesefragments are called primary, i n i t i a l , or pre-neutron~emission~ffigments.
The xirimary fragments repel each other, obtain their full kinetic energy.(e.g. 90 Me?), emit ^r^j^t_jieutrp_ns (< 4 x 10sec) and gamma-rays (<10~sec),
are slowed down in the surrounding medium and stopped. These fragments are called
secondary, final.» post—neutron emission fragments, or primary fission-products.
(The emitted gamma-rays may cause conversion betas and X-rays.)
The primary products undergo(after 10
sec and more) a series of beta-decays
forming secondary products and end up in stable nuclei. For certain products
the emission of delayed neutrons i s competing with the beta-decay process.
In most of these stages mass-yields and charge-dispersions are measured
as well as energy-distributions. The terms "fragments" and "products"
are not clearly distinguished. Most frequently "fission-fragments" are meant as
primary fragments and "fission-products" are the end-products. However, theborder-line between fragments and products i s varying, and often the word
"fragments" i s used as overall term including a l l stages of decay. Often fissionfragments are specified by their mass only including all Z-numbers. so that the
fragment-yield remains constant during beta—decay. Fission products =ire usuallyspecified by Z and A. A specified fission-product i s obtained in two ways: either
jrnmediately from fission (primary yield) or from the decay of another fission product. Thus, the total sacunt of a specified fission-produot varies in time. Very
short-living fission-products may nevertheless,be most important, because somehave extremely high capture cross-sections (10 b"1. Finally, a l l decay to stableend-products, partially via metastable states. For odd A-numbers there exists
only one stable end-product, that i s significantly formed in fission, foreven A-numbers one or two.
Units;A mass-yield or fission-product yield, when measured absolutely, is given in
per-cent per fission (code: PC/FIS). See Example 14» Fissions and fragments
must then be counted independently. If only relative yields are given, themodifier RSL should be used with the Isoquant and the DATA-Unit code is
ARB-OTITS. Since in ternary fission more than two fragments are formed per
fission, the yields for all fragments sum up to a bit more than 200^. However,
emission of light particles in ternary fission does not change the sum ofyields in the binary fission mass range usually measured, and other mass splits
in ternary fission are negligible. Therefore relative yield measurements(ARB-UNITS) may be normalized to 200$, if the measurement was made for a sufficient large number of fragments; if this is done, the data-table may include
some values that have not been measured but obtained by interpolation; suchvalues must be labelled by flags. Different ways to obtain absolute yields will
be discussed in a forthcoming LEXFOR entry about fission yield measurement methods.
Primary fission-fragment-yield. This is the primary yield per fission of fissionfragment mass A before prompt neutron—emission. It may also be called preneutron-emission fragment-mass distribution. Quantity-code: NF,YLD,PRE. See
Example 14i§. In all experimental techniques corrections for some prompt
fieu^f6ns~aTfeady emitted cannot be avoided.
40

Secondary fission-fragment yield. This i s the secondary yield per fission offission-fragment mass A after prompt—neutron emission, but before beta-decay
and delayed neutron-emission. I t may also be called post-neutron-emission
fragment—mass distribution,, Quantity-code: NF,YLD,SBC. See Sxample_14_5cU
Independent fission-product yield. This i s the direct or independent yield per
fission of a •orimary ^i^sion-tiroduct '-.-oecified by Z and A, after prompt neutron
emission, but befo1-? h^tr~d.nc;iy -vn<3 deliypd—noutron smi-r.i on, i-~.nl yd ing only
the direct yip"ld and not tho yield obtaired from deeply of other fission-proch.ict
Fee 5^3.mple M . b . Quantity-code: F?.YID,IH]D.
Sum-rule:'

2>~7 KP,YLD,IKD = FF,YLD,SEC
all ?-.
P =-const

Note: Experimental data, of independent yields of the product Z.A include a
portion yielding from the delayed neutron-emission of the product Z.A + 1 orfrom the beta-decay of the product Z—l.A, i f separation times are not nhort
against the relevant decay-times. Corrections are required which should be
mentioned under "CORRECTION". Fragment-mass yields are not affected by betadecay but only by delayed neutron—emission.
Cumulative fission-product yield. This i s the cumulative yield per fission of afission-product specified by Z and A, after prompt neutron—emission,
including the independent yield plus the yield from decay of other fissionproducts. See 3xample_14/b. Quantity-code: NF,YLD,CUM.
Sum-rule:
NF,YLD,CUM for the 0-decaying product Z-l.A+ NF,YLD,INI) for product Z.A= NF,YLD.CUM for product Z.A, i f the products Z-l.A and Z.A + 1 are not delayed
neutron-emi t t e r s .
The following events may add to the cumulative yield of the fission-product Z.A
in i t s ground-state:
independent yield from fission
beta-decay from product Z—l.A in ground—statebeta-decay from product Z-l.A in a metastable state
delayed neutron-emission from product Z.A + 1
internal transition from a metastable state of product Z.A
In addition, the product Z.A may be formed from neutron capture in the productZ.A-1, which i s not included in the "cumulative yield".
The cumulative yield i s often given for a metastable state of a fission-product
Z.A; this i s entered in EXFOR by means of flags, see 5x.amj>le_l6.
Total chain-yield. The total chain-yield per fission of fission-fragment mass A
i s the sum of the cumulative yields of a l l stable fission-products having thesame mass A. See Example 14»a» I" the case that only one stable fission—productper mass A ex±sts7~the~total~chain-yield for mass A i s identical with the
cumulative yield of the stable end—product Z.A<,
Fractional y i e l d s .
The fractional independent fission-product yield i s defined relative to the
cumulative fission-product yield or relative to the total chain-yield»41

4CM/VIII/ X4/l

The fractional cumulative fission-product yield is defined relative to thetotal chain-yield.
In all cases the data are entered as ratios of iso-quants. See Example 14.c.
((92-LT-235,NF,YII),I]TO)/(92-U-2?5,M^YIJ)!cHl0)

The distribution of charge Z within a given fragment mass-chain A i s called
charge-dispersion. See Example 15.a. It can empirically be approximated by aGaussian distribution with a most probable charge Zp. See Example 15«b. '"^hefractional i ndepr;nder.i yield of a fission product (after rrcmpt neutron orai r.sior)is given by?(Z) »( Tin)-'9- exp i-(Z-Z^2/oJ,

whereas the fractional cumulative yield is given by
Z * -i/z(p) = ---f==i. 1.xP <.-"•• — - > *\r\o

The parameters c and & are widths of the distributions, related by c a 2 {& + Viz,)
For charge dispersion,fractional yields are defined only as ratios to total
chair; yield.
Reference;
A.C. Ifahl et al.

Phys. Rev. 126, 1112 (5/62)

Uote; The Gaussian vidth parameter has been assumed to be approximately constantfor all A chains, as given by Wahl et al. Therefore Zp has sometimes been
determined from a single fractional yield measurement. However, there is evidence
for a variation of c and & with mass A and they may be determined together with Zp.
Therefore in a comment the Gaussian width parameter used should be explained(value or reference).
The following definition of charge distribution (primary charge function) is now
generally accepted: distribution of primary charge as a function of primary mass.
This quantity is deduced,either from other quantities (charge dispersion, mass
distribution), or from instrumental measurements of fragment mass (kinetic energy)
and X-rays, both methods involving uncertain corrections for prompt neutron
emission. As this quantity is mainly of interest for studies of the fission
process, but not in applied fields, no codes are proposed.

Note:

Angular distributions and energy-spectra of fission fragments are coded
as NP,DA,,FF and NP,BE,,PP and similar codes given in dictionary 14.

424CM/VIII/X4/1

Example_14:

Fission-yieldsa) Primary fission—fragment y i e l d :ISO-QUANT(92-U-235,NF,YLD,PRE)

COMMONEN
EV
0.0253ENDCOMIvION
DATA
MASS
NO-DIM

DATA
PC/FIS

The secondary fission-fragment yield i s entered as above; only the quantitymodifier PRE i s replaced by SEC. The t o t a l chain-yield has the modifier CHN
instead.
b) Independent fission-product y i e l d :ISO-QUANT(92-U-2 Vj ,NF,YLD,IND)COMMONEN
SV
0.0253ENDCOMMONDATAELEMENTMASSNO-DIM
NO-DIM

DATA
PC/FIS

The cumulative fission-product yield i s entered as above; only the quantitymodifier IND i s replaced by CUM.
c) Fractional y i e l d s :ISO-QUANT((92-U-235,NF,YLD,IND)/(92-U-235,NF,YLD,CHN))
0 • •COMMONEN
EV
0.0253
EHDCOMMONDATAELEMENTMASSNO-DIM
NO-DIMRATIO
NO-DIM

43

4CM/Vlll/X4/1

Examp_le_15:

Pission-product charge:

charge dispersiona) Fractional yields
ISO-QUANT((92-U-235,NF,YLD,ira3)/(92-U-235jNF,YLD,CHN))COMMONMASSNO-DIM
135.
ENDCOMMOUDATAELEMENTNO-DIM

53.
54.
55.

EN
EV
0.0253RATIO
NO-DIM
•• •
*# •
•

• •

Fractional cumulative yields are entered as above, with IND replaced by CUM.
POT charge dispersion the second isoquant of the ratio must always have themodifier CHH.
b) Most probable charge
ISO-QUANT(92-U-2 35,NF,ZP)•• •COMMONEN
EV
0.0253ENDCOMMON
DATA
MISS
DATA
NO-DIM
NO-DIM

44

4CM/VIIl/X4/l

Example 16:

Relative Cumulative yields of metastable fission-products

BIB
•

•

•

ISO-QUANT
FLAG(92-U-2 35, NF, Yl.D, CUM/REL)( 0 . ) FISSION-PRODUCT IN GROUND-STATE(l.) FISSION-PRODUCT IN FIRST METASTABLE STATENOT FLAGGED = FIS.PROD. WITHOUT METASTABLE STATESNDBIB
COMMONEN
EV

0.0253ENDCOMMONDATAELEMENTNO-DIM
50.
50.
50.
50.
50.
50.
50.
50.
50.
51.

MASS
NO-DIM
118.
119.
119.
120.
121.
121.
122.
123.
123.
123.

FLAG
NO-DIMHLD

DATA
ABB-UNITS

0.
1.

1.
0.
1.

2NDDATA

45

4CMAIII/ X 4 / I

To be add_ed_Vt_o_.Ji-5.i£

The preceding proposal requires the following dictionary-entries:

NF,YLD,PRE.
NF,YLD,SEC
NF,YLD,IND
NF,YLD,CUM
NF,YLD,CHN
NF,ZP

NFY (PRIMARY FISSION-FRAGMENT YIELD)
NFY (SECONDARY FISSION-FRAGMENT YIELD)
NFY (INDEPENDENT FISSION-PRODUCT YIELD)
NFY (CUMULATIVE FISSION-PRODUCT YIELD)
NFY (TOTAL CHAIN-YIELD PER F I S S I O N )NO (MOST PROBABLE CHARGE OF FISSION-FRAGMENTS)

D.ll
YLD
ZP
D.12

YIELD, to be moved from D.12 to D.ll
MOST PROBABLE CHARGE

PRE
SEC
IND
CUM
CHN

)
)
)Modifiersfor specific fission-yield auantitieR))

ELEMENTMASSZ-NUMBER OF ELEMENTS
A-NUMBER OF ISOTOPES

PC/FIS

PER-CENT PER FISSION

NFY

46

4CM/VIII/X4/2

Fission- Neutron Spectra Data

This subject concerns the following data-types

which should be compiledin EXPOR.
1.)energy-spectra of fission neutrons, point-data

2.)

fitting-parameters of fission-neutron spectra

3.)

fission-neutron spectrum averaged cross-sections

Literature, e.g.: James Terrell: Fission Neutron Spectra and Nuclear
Temperature, Phys. Rev. 113, p.527, Jan. 1959.
Prompt Fission Neutron Spectra. 71 VIENNA

A note on incident neutrons: Fission-neutron spectra axe dependent on theenergy of the incident neutrons. Data are given for "thermal" and "fast" fission.
"Thermal" fission spectrum data refer to both: 0.0253 eV neutrons and thermal
Maxwellian neutrons; the results are indistinguishable. It is therefore notrecommended to use the MXW modifier when incident neutrons are thermal Maxwellian.
Also for fission spectrum data,, induced by fast neutrons (monoenergetic or
spectrum average) it is recommended to enter a numerical value for theincident neutron-energy and not to use the modifier SPA. The modifiers MXW
or SPA are not relevant in this case, and the quantity codes are complex enoughwithout. The incident neutron spectrum needs only to be described in free text
under INC-SPECT.
1.)

For point-data of fission-neutron energy-spectra
the following quantity-codes exist already in dictionary 14 or can beformed in analogy:
NU,DE
NU,DE,PR
SF/NU,UE
SF/NU,EE,PR

energy-spectrum
energy-spectrum
energy-spectrum
energy-spectrumof fission-neutrons, totalof prompt fission-neutronsof spontaneous fission-neutrons, totalof spontaneous prompt fission-neutrons47

In the literature, these data are usually called ;£(E). Data are mostly given
in arbitrary

units, which require the REL modifier in the quantity-code. In thenormalized form/ ^ ( E ) dE = 1 data have the units of a reciprocal energy.

The data are functions of the outgoing-neutron energy E, with the incident
neutron-energy EN to be entered under COMMON".
2.)

Fission-neutron spectrum data are fitted either to a Marwellian or to a
Watt—spectrum or to one of several other defined spectra.
The Maxwellian spectrum has the shape~-/e"exp(-E/T)

where E i s the energy of the fission-neutron and T i s the spectrumtemperature given in MeV. Often given are also the average kinetic
energy E and the most probable energy Ep which are defined as.E* = 3T/2
E = T/2 = EAPThe Uattspectrum i s based on the assumption that fragments emit neutrons
with a'Maxwellian spectrum in the center-of-mass system. The shape ofthe tfatt spectrum i s

N (E) ~ exp (-E/T) sinh (£ V E E f)

where T is the spectrum-temperature given in MeV but deviating fromthe temperature defined in the Marwellian fit; 3-p is a theoretical"fragment.kinetic energy per nucleon". The average kinetic energy E
is defined here as
E =E+ 3T/2.
—
approximately
The numerical value of B should bey^the same disregarding to which
spectrum shape the data were fitted.
Since the average kinetic energy E is the only quantity which iscomparable in all fits, EXFOR entries should be made for the quantity
15, which should be coded

I = MJ,AKE.
Details of the fit and of the spectrum shape assumed should be given under
ANALYSIS; also any further numerical parameters obtained in the fit such
as T, E or S shall be entered here in free text. By this procedure it isavoidedPthat the Watt-spectrua parameters are entere'd in three different
subentries, one each for the quantities E, T and 3 . When in the case of
a Maxwellian fit the author gives only T, the compiler is asked to calculate
E from E = 3T/2.
In mott cases only the prompt neutrons are considered;is then
NU,AK3,PR

the quantity-code4CM/VIII/X4/2

Data are functions of incident

neutron energy EN except in the case of

spontaneous fission, where the quantity-code is
SF/NU, AKE, PR
Again, no modifier shall be given to indicate an incident neutron spectrum.

3.)

Fission neutron spectrum averaged cross-sections are entered withthe modifier FIS. (Note that this modifier was introduced only at the endof 1972; data compiled earlier were coded with the more generalmodifier SPA.)This is to be combined with an entry under
EN-DUKMY. The numerical value under 3N-DUMMY should be the temperature
T = 2/3 E* of the given spectrum, or 1.5 MeV if T is not known.
It must be evident in the SXFOR-entry* whether data were measured directly and in what kind ofspectrum (free text under METHOD and INC-SPSCT)* or whether data were calculated by integrating a measured
cross-section curve over an assumed fission-neutron spectrum(free text under ANALYSIS).
In the first case it should be specified in free text from which nuclide
and incident neutron-energy the fission-neutrcn spectrum is resulting.
In the latter case it should be noted that it is essential to give theassumed spectrum type and its parameters, as well as how the fit wasmade (e.g. in a lf(E)-versus-E scale or in a lT(s)/VS^-versus-E scale.
Fission spectrum average cross-sections are defined as/ N(E) -TF dS

Concluding Remarks
The knowledge of -the shape of the fission-spectrum is developing, andMaxwellian and Watt spectrum are now considered only as rough approximations.
Presently preferred is a "double Watt spectrum", and the Cf-2$2 -pectrum which
is more accurately known suggests that none of the presently used fits issufficient. Therefore, it is most important to compile point-data of theenergy-distribution of fission-neutrons. However, mean-energy values are also
desirable to compile because they are rather independent "of the spectrum
shape assumed ar.d frequently needed for measurement analysis (detector
response, etc.).
( Ca^^tO

49

Review of ?cti.-ons from last meeting

Reference is made to numbered items of INt)C(NDS)-41. Actions that have
not or only partia^lly been fulfilled, are listed bolow.
World.n,~ Fc 1 i ci e s
4.

CIKDA entries have not been transmitted when EXPOR—entries were delayed.

5»Specified data types as suggested by various committees have partially
not yet been transmitted.

8.

INDC has not sufficiently discussed the difficulties of obtaining datafrom authors.

10.

Completeness of 3XF0P—entries since 1970 has probably not been achieved.

BXFOR di ctionariep.
27.

Modes how to approve and add new codes to dictionaries must be discussed from scratch after it has been decided which dictionary to retain.

35.

KT7CSC was to present a report on the coding of multilevel resonanceparameters.
TTNC3C was to monitor the use of the DRT-rr.odifier.

36.
37•

ED3 could net add the PAD modifier to D.12, because its meaning wa? notclear to KDS.

EXFOR Manual and LEXFOR
42.

It was recommended that updated Manual pages be transmitted as soon as
possible after the meeting. This was done only on 26 July 1972.

46.

Report by M C S C on the use of the keyword PART-DST is expected.

53.

An update of LEXFOR was to be distributed by HKCSC by 1 March 1972.
This was however only done on 31 July 1972.

Date sco"ce56.

Crouch (Harwell) has not prepared a fission product yields classification
scheme. After correspondence with Crouch, the original proposal onquantity-codes for fission-product yields by KDS (4C-3/42) does not
require a change.

58.

K1JCSC was to prepare a detailed proposal of how to include gamma-spectra
data in SXFOR.

60.

KDS was to prepare a detailed proposal of how to include fission-spectra
data in EXFCR. This is presented at this meeting in memo 4C-3/64.

Other EXFOR details
64.

The question of blanks in DATA columns has not yet been solved.

CIIJPA67.

The completeness of CI13DA with respect to lab reports has not improved.

68.

The announcements of CJD to prepare CIEDA-entries (besides journals andconferences) also for preprints from all USSR institutes, CJD Bulletinsand collection of abstracts, has not bc?n fulfilled.

70.

The re-programming of CIKDA has made considerable progress,but no detailed
proposal how to extra.ct 7,7lF0R-inder CTIJDA—entries from 5'XPOR has been
circulated by 1IDCC.

50

4CM/rai/4

NNCSC Progress ReportI.

Introduction

For the past year NNCSC has continued its work in its three major areasof responsibility: compilation, evaluation and computer applications.
II.

Computer Applications

In the past year we have added the following to our PDP-1O - PDP-15
complex:.
.

An additional 32K of PDP-1O core (Total PDP-10 core 80K).
Two additional disk units - an additional 10 million wordsof mass storage (Total PDP-10 mass storage 20 million words.). Graph tablet-device with provisions to input graphical data.
» Provisions to utilize the light pen on the PDP-15 graphicaldisplay.
. Miscellaneous utility features.
Anticipated additions for the coming year are addition access terminals
for the PIP—10 along with remote access terminals via telephone lines.
III. Evaluation
The third version of the Evaluated Nuclear Data Pile (ENDF/B-III) was
released in February 1972. It contains data for 229 materials. Ten ofthese materials are scattering law data sets. Eighty-seven contain photon
interaction cross section data for natural isotopes. One hundred and thirtytwo contain neutron cross section data for isotopes of elements.
The ENDF/B-III files for six materials used as cross section standards
have been sent to the Nuclear Data Section of the IAEA for world-wide use:
H, % e ,Li, 1 0 B , ^97An, 235u. The bases for these evaluations wereassembled in BNL-17188 (ENDF-179) "ENDF/B-III Cross Section Measurement
Standards," by M.K. Drake,in July, 1972.
Evaluations have been completed on Si, Kr and Xe. They have been put
into ENDF/B format.

4CM/VlIl/4

4.

Compilation

The scope, format, and manner of publication of the new ENL-325 are now
well defined. It will be a completely new Third Edition, compressed to twovolumes for ready usefulness. Volume I (tables) will contain only recommended
values of thermal cross sections, resonance parameters, and associatedquantities such as resonance integrals and strength functions. Volume II(curves) will contain graphical representations of the energy dependenceof the cross sections, together with some of the experimental data points.
In both volumes, references to all the experimental measurements will belisted, even when the values themselves do not appear explicitly. The data
pages of both volumes will be computer prepared; and the curves of Volume II
will be developed by automatic fitting routines applied under interactive
graphics control. Completeness of data input is being verified by checking
against C H T M . Volume I will appear first, in the first half of 1973.
The first-order checking of the SCISRS - CSISRS translation has been
completed and the data for Z 2- 88 have been incorporated into the CSISRS
library.
The physics group has begun in assisting in the compilation of new
data and we have essentially eliminated the backlog of data to be coded.
Since the start of EXPOR the M C S C has sent 10 transmission tapes
consisting of 131 major references and 137 000 data points (including
corrections).

4CM/VlIl/5

CCDN Progress Report
October 1971 - October 1972

1.

Introduction

During the period under review the activities of the CCDN compilation and dissemination of bibliographic, experimental andevaluated neutron data - continued. There were some important changes
in the staff: Horst Liskien left the centre at the end of September
1971 and was replaced by Fritz Frohner (from Kernforschungszentrum Karlsruhe) who took up duty as the new Head of the Centre in December 1971,
and Hans Willars left at the end of January 1972 and was replaced by
Claas Rickeby as the senior programmer in June 1972.

2.

CINDA

In spite of difficulties caused by Nigel Tubb's sickness the booktapes for CINDA 72 and for the 1972 supplement were sent off to NDS ontime, i.e. on 14 April and on 28 September, respectively.
After an interruption due to the four-months vacancy of the seniorprogrammer's post work on the new CINDA programme system is making good
progress. The new system will provide for faster computer operations,better retrievability, link to the experimental-data index and blocking
of entries referring to the same set of data. It is expected to be
operational in time for CINDA 73. With the exception of the inputtranslation programme for US tapes, basic programmes for all CCDN CINDA
operations exist and are being tested. The coverage control will be run
as a separate operation, for the moment with the old programmes. In preparing the transfer of the CINDA file to the new system we tried to
improve the file as much as possible: we wrote to CINDA readers andto physicists in different laboratories and got quite a number of corrections and new information. All centres are now agreed on the input
format to the new CINDA system, and a temporary reader's manual has
been distributed to readers and the other centres recently.

3.

Experimental Data

The compilation of experimental data is continuing and has resulted
in the incorporation of about 170 000 new data points into N3UDADA.
About ^dfo of these points were entered directly, 40^ needed some tidying
up and the rest required more information from authors. At the sametime the non-numerical information required for the SXFOR data exchange
was prepared.
A new index file to the experimental data was produced. This wasa basic step in the programme to make CINDA an index to computerized
neutron data. The new index was published as CCDN Newsletter/Bulletin 13
in February 1972.

53

4CM/VIII/5

The preparation of EXFOR tapes is continuing steadily after apause at the beginning of 1972. This pause was caused by a lack of
disk space together with urgent RENDA and CINLA commitments before
new disk drives became operational in April 1972. Five EXPOS tapeswith a total of 110 works, 946 subworks and 214 926 records (excluding
system records) were prepared during the last twelve months. The backlog in the centre's EXFOR compilation work which in May 1972 amounted
to about 15 tapes worth of data is foreseen to be eliminated by about
May 1973.
Although EXFOR is used for data transmission to the other centres,
all other computer operations at the CCDN involving experimental data
- including compilation work - are based on the more convenient NEUDADA
system. A programme for format conversion from NEUDADA to EXPOR has
been completed} and a first version of a programme for conversion in
the reverse direction is operational.

4.

Evaluated Data

CCDN's activity in the field of evaluated data continued to be restricted to the collection and dissemination of evaluated data. During
the past year the following evaluated data were received:-

new versions of UKNDL updated with respect to Ti-46, Ni-58,
U-2 35, U-238, Pu-239;-

revised ( n ^ ) , (n,n') and (n,2n) data for fission productsin UK format from Benzi;-

Pu-2 39, Pu-240 and Pu-241 data in UK format from Ribon;-

a new version of the Australian fission product libraryfrom Cook;-version III of SNDF/B;-

U-238 data from Abagyan (the first evaluated data from theSoviet Union).

The contents of the evaluated files were published as CCDN Newsletter/Bulletin 14, May 1972. Following a proposal by Ribon and discussions at the 1972 INDC meeting the CCDN will in future take overpublication of the evaluation newsletter started by Ribon.

5.

RENDA

In accordance with the agreements between the EANDC, the INDC,
IAEA and NEA, future editions of the RENDA book will be world-wide,
reviewed by the INDC and published by IAEA/NDS. For the publicationof the first world-wide WRENDA list CCDN merged new requests and54

4CM/VIII/5

topical reviewers1 comments from the EANDC area and the requests
from the rest of the world sent by NDS into the existing RSNDA file.
The new file was handed over to NDS for publication. After completionof a first version of the world-wide request list (EENDA 72) a long
list of belated new US entries was received. It was therefore decided
to merge these at the CCDN with help from NDS and to publish the newlist as WHENDA 73. The merge was performed in October 1972.

6.

Retrievals from the CCDN's Files

The last extensive retrieval statistics was prepared in April 1972.
During the 12-month period beginning 1st April 1971 the CCDN received-

143 requests for experimental data
71

"

"

evaluated

"

16

"

"

bibliographic references.

The total number of requests (2 30) is slightly higher than during
the previous year (212). Many of the requests necessitated quite
sophisticated retrievals as illustrated by the fact that the 143 requests
for experimental data necessitated about 2200 specific retrievals fromthe NEUDADA files. The Z-A-Q combinations requested are shown in theattached retrieval statistics. The last sheet shows the origin of therequests. The majority of the requests comes from nuclear physicists
and evaluators at national research centres. The data types most frequently asked are-

fission and total cross sections, ex and v values forfissile nuclei;-

capture and scattering cross sections for non-fissile nuclei,
with inelastic scattering as much in demand as elastic scattering;-standard cross sections.

The needs of reactor physicists are clearly reflected (cf.
structural materials and fissile nuclei). There is a conspicuous
absence of certain groups of potential users, e.g. universities andespecially nuclear industry, which can only partially be explained by
the fact that some requests from industry reach the centre via nationallabs and therefore appear in the wrong category of our statistics.

7.

Computer Installation

The disk storage capacity necessary for direct-access operations
was increased to 4 1 29 M bytes by the installation of four CDC 2314
disk drives in April 1972. All programmes are now run under DOS(disk operating system).

55

ON

CCDM

Illlll

4
N

II

If

1 11
11
11

II II!
II Mi

11

II UD

At

11

Si

III II

I

II I
MI n

2?

1:1.
I I
M
I
I
I.I
II I

I

11
32
33

II

I

I1 I
I11

SS
Ar

: . ; . ! . . :\i

j..Ti.n:ri:r
I

• I

. i

!

1 - - Ii j .1 i _i -i

il
I

I

i.

I

• •!

J

I

ii

m1

II
II

1

Cl

M

V A

UII K

r
s

I N.I

11
i

Zi

,

I

<C

K

te-u V).

F»

M M I

33

in i t i
MMl i

II
II

GL

II
If
ft

So
71

II

II
I

II \
IIII
II II

II

II1

I
U

VI
HI
111
III
Ih

50

j. :i-u.44-ii

n.-

III
ID

II

( IB

52.

mi

in

II DiiI! I,! II I

m

if

HI

in
II mi
mm

mi

I.

IK I

mi i

I I
I I

I II

o

•

|

!

1 . i

R

So
51

00

mi
mi.

UK
01
BI

I
I

IN
IV

l|

i

i

4

1! S\

I

!

CCLtvJ

mill

j
II

I

II

h;

gs fei

II

II II
II II
0 II
IIII

St
S7

Co

KJ-.

I

to I

Cfl
mi

2

S « ili i
lill

Cu

I

M

Ill III(-5 HI »)I I! I' I I
I. II i

III!
II?

n
nir

It!!

im

I (I II III I

II

II

71

3

I R !

II

Ga|

1

ID

*

I II I

i)( i
11) i
i I.I

I

11
11

i
i II
i

i

I

i i

II
II

^y?
uJS.tJnJ?
b
^
^
o
a
*
Z<Z2C EZ252
vot/QV?W£)/Q

70

n

73

8

11
Dl
III

nin

As

8
81
79
81

ni
IR

• it '

II
II
II

n in

Hill

*7

I
l
I

II
II

II

I II
I HI

IF

1
II
1

1!
II

II
8

i i
i i

If

ii
11
i II

78

8Z
53
V¥

in
id
I

ill
III
W
III
9

IM
I "I

Him

7*

Kr

in

HI
IP!

UIW
\ ffl
I) HI
Oil
1 HI

III!

Se

Er

i
Ml

ZZZ2Z2

II

II
ii
n

(1

II

1

1

II
1
li
(

II
II

CCDNlA <TI J
Sr
27

1

8?

1
1

Y

d*±Ud?

E>
I—

UJ — tv/) <o V7

1

I i
Hi

m

ill
in

bttg^o^it HI
i (i222.2N

II

II
II
II
II

II
II
II

I

)
)

i

3C

MW
Mo
32

I

i IIKIV

1 I urn

II

i

imi

II

1

i

r

i

n

i u
5s i II
39-

57
loo

[To)

(HI

i
i

1 V
i 'i
i
ii

i

ill

I

III) I
III. I(III /HIM

II ID 11 iurn
II

II
H

II

II
I!
W

I I

H

Zr
5& 11
31 n
32 it

5 t fcj

I I

I I
I I
If

IIIIDII 111

on

inn

u
II
\r

ii w
(i ra

n

I) N
Dim
If W

tl

I

VI I I I M
I I I
I I I

Ml I

II

in i I i I!!)i i i if!

III
in
in

ID

III

Illl

II

I
III
HI
iff
III
ID

II
.1.
II
H
I
D

o

Afdl

ALL

l&cjuesf

I II
I II
! »
I I!
III
I lit
I (II

»
IV
II

lot

III
ID

fto

II
I

Q

I
I

11
11

II
10!

Ml

1U

II
II
II
II
II
II
II

II U)
HID

! "J

IB
ill miI

DM\t I I.
in i i
HI i i
in i im i i
ID i i

: }..

IK 1

X

n

II!
!

(I
(l
II

.;.

:.

V
(I
II
II
,... II
II,.: ;1
II
II
II

II

W

III

mi

HI)

in
mi
mi
UK

II
11(1
III)

Hi II
ill ifyin in
in tin
in in
mm
HI iw
HI til

III I I I III
in i i i HI
m i l l in

w i n in(sin moi i i HI
id i I Mil
in i M in

II
I)

II
II

M
M

AfritAd

Ui — t

<c

In

0

113

IB
IN

\\Z

II
1
II
II

If* 1

Svi

tu
117
J1S

III
II
III
H

12*
122

II

12f
US

1

mi

i

1
1

II

it m

1
1
\
\

II
II

III IIiii mi
ill mi(i)n»
id tnr

1
1

i

w

•

•

\"\
•

.

;

r ,

' T
:

••;-;
T

i

;

ill i
•:

i

II

ii

•

1

1

m

I

1

II IIIII III

Ii

i'• "\

II
II

1
1

I

111

II
1/

Hill
Hill

123

12i

m i i mi i
in i I I mi i

II
HI

116
122

ID Mi

1
1

i i

ID
ii)

m

II
II
II

I!
i'
II

n

in

II
II

H
H
H
II
H
II
H
ll
M
M

CCh\id<:<<2Z<CZZli.

III))
if in
Kill

t»
123

nm

ii m
II UN
II m

151

nil
II ii

Cs

132

II

t

IK

no
ui

din

Ufl
hi
Hi'
in

II
II
II.

II IB

uw
Ml
II Illl

II
II
(IH-3

II m
Nil)

138
133

lif

dim

IBf
Illl
id!
Illl

&7

u

2Z222

II
II

Iff
II
7

M

H

CCDM

IIII

II
II
tss (II
II
II
II
Ito

I III
I III
I III
I III
I II
I II

I)

m

III

itv-

«

ii

! II
D ir

•w

III

Er

L

UK

m

HI
III

II

mi

II!

•SC

He

k

m

111

TV

-

II III)

rr

Ill)

II

If IQ
II IH
II IK
I 111

HI
HI

II

ti mi

HI

I

in
l il
I il

in

w

tr

II

•-+

ii

ni

iii

in
in

l II
I II

i

III

I
I

I III
1 HI
t i ni

i

I

Y,
II.
.1:
II;
II

l

in il
(tiim
HI m

Ri mi
in mi

11/
HI
ill

il m

II)

Yfc>

in

nt. i i r
ii

m
m

ii.

min

in
«f
ID

HI

IN I
Jll:

in
HI

II n
I! II

111!
III)

Of

m

If! Ill

mi
mi

in

Hf
m
l&o

I:,

ii HI
dim

171

"R

II
II

HI

III
IB
(II

Lu

180

i.

II

mi

M:

mi

llfl

W
ISZ
ON

18b

mi
1

CCb\i0CKlwt"
Ke

U

A

gs

I«S
Itf
•II

187

132

« 'M

III III!
10 ill-.

HI
in

Ill nol)IIm

HI till

Ir
13)

TV

no

Au 157 Io\If III
Ml
Fill
Hill
II IIIll III
W If/
I

n

m
HI
m
m
m
t

April 437?SA

L_ U$ -i-z\- t/1&8KO V) W

0

li
13?

II
•1

133

1

2o 1

l|

u
II

1

Tl

w
w

HI mi

III

IT
II

in mi
in mi

II
II

(1

1'

in tin
in mi

1

II

2c>3

2&S
•

Pk

2W
26S
2PC
2J>7 i

•

11

\\\
IV

III
III
111 Ittl
III mimim
in in
ifi im

u

ill :
0
K

i

I

II
If
It
II

I

III I 1 I III

I

ft

i
\

At

1

I I

II

ft/i

I 1

II

Tr

1
1

I I

II

fa

1

I II

II

Ac

1

I II

Bi

ON
00

HI

M
M
M

CCBM
L

5 t fcj

2

I III E

i
01

i nto
i

iL

*

Ell. 11 n
II I 11 iv II

II I I M I
I I
1I

I
II R

I I Jl
i im
) i i
11
11

11

i

mi

4CM/VIII/6

NDS progress report
Since the last 4C-Meeting NDS experienced a rather large turnover instaff. Alex Lorenz, Valja Konshin and Peter Kaas left NDS and were replacedby Charles Dunford from Atomics International, USA, Mercury Vlasov

from theAcademy of Sciences, Kiev, USSR, and Meinhart Lammer from Seibersdorf, Austria.
This was effected usually only half a year later, as for reasons of budgetarysavings all vacant posts in the IAEA had to be held open for half year periods
at that time. Two other new staff members of NDS are Jim Lemley from Los
Alamos, USA, and Alain Calamand from CEN Saclay, Prance, replacing former
staff members Bak and Koster respectively who left NDS in the first half of
1971* At present, NDS is again fully staffed with ten physicists, threeprogrammers, two data-processing clerks and four secretaries. NDS was allocateda fourth secretary because of an enormous increase in typing workload.
In May 1972, CINDU-10 was published; it contains an up-to-date catalogueof experimental and evaluated neutron nuclear data available from NDS data
files.
The publication of GINDA was continued with the second (cumulative)
supplement to CINDA-71 published in December 1971 and the new total volume
CINDA-72 which came out recently. The unfortunate delay of the publicationof CINDA-72 was solely due to the incidental overload, in addition to thenormal work load, of the Agency's Publication Division caused by the
publication of the proceedings of the 1971 Geneva Conference.
The reviews on c^ (Pu-239) by Konshin and Sowerby, on Pu-239 fission and
the Pu—239/U-235 fission ratio for fast neutron energies by Byer and on 1T
data for all heavy isotopes by Manero were completed and will be publishedin the December 1972 issue of Atomic Energy Review. They represent substantial
progress over similar work in the past particularly by treating systematic
errorsjand it is hoped they will be of benefit to evaluation work connectedwith national fast reactor programs. Present and near-future NDS review work
concerns a second up-date of the 2200 m/sec fissile isotope standard constants

714CM/VTII/6(H.Lemmel et a l . ) , reactor dosimetry cross sections (M.Vlasov et al.)and standard reference cross sections (j.Lemley et al.)The receipt by NDS of the NNCSC file with E N D F / B standard data and of
the updated file containing1 additional cross sections for carbon is gratefullyacknowledged. The first mentioned file or subsets of it were distributed to anumber of users in the NDS service area and to CJD upon request. Prom CJD an
evaluation report on fast U-235 fission standard cross sections by Konshin
and Nikolaev was received, translated within the Agency and distributed as
HTDC(CCP)-26/u report. Also the first full evaluated data file from theSoviet Union covering all neutron cross sections for U-238 was received fromCJD.
NDS maintains a small support programme for the supply of targets andsamples for nuclear data measurements to laboratories mainly in developing
countries. It has received multiple requests from eight research groups inseven countries and, with INDC approval, is currently undertaking the necessary
steps to fulfill these requests.
Regarding past meetings, NDS organized the first meeting of theInternational Working Group for Nuclear Structure and Reaction Data (TWGNSRD)
in Vienna in March this year. The meeting started a review of non-neutron
nuclear data requirements for various applied purposes. As a first step
it identified the major fields of nuclear data application and linked theseto the existing compilations.

Future Meetings organized by NDS

1.

Symposium on Applications of Nuclear Data in Science and Technology, Paris
12 - 16 March 1973 (Scientific Secretary: L. H.jarne)
This symposium will convene representatives from various application fields(reactors, fusion, safeguards, medicine and others) which use nuclear data inthe development of nuclear methods, in nuclear design studies and others.

724CM/viIl/6

Contributions from these people are supposed mainly to pinpoint deficiencies,
gaps, etc. causing severe penalties in the available compilations andeayluations of nuclear data. It is conceived as a teach-in to the compilers
and evaluators present who in turn will review in one session the major
activities in their field. It is hoped that the symposium will provide acomprehensive survey of the more important needs for improving the existing
compilations and evaluations and help to bridge the still existing information
gaps between data compilers and suppliers and data users.

2.

Panel on Fission Product Nuclear Data, late 1973« (exact time andplace still to be determined (Scientific Secretaries: M.Lammer,
H.Lemmel)This will be the first meeting on this topic, and its principal purpose

will be to review the status of fission product nuclear data of importanceto reactor design, shielding, nuclear materials safeguards and other nuclear
applications.
The main data items to be discussed will be-yields for thermal and fast neutron induced fission;-

capture and other neutron reaction cross sections;-half life data;-

delayed neutron precursors and their data (half lives, emission
probabilities and yields, decay schemes);-

decay schemes, fa— andy-ray spectra and intensities.

The main discussion topics (in short) will be:-

review of the technical background for fission product nuclear datarequirements and their priorities;-

critical assessment of the status of knowledge of fission product nuclear
data;

-

critical comparison of available microscopic data evaluations;734CM/VIII/6-

review of integral measurements of fission product nuclear data;-

issue of recommendations for future work on fission product nuclear
data for the benefit of the variety of users of these data.

The meeting is supposed to convene users, compilers and evaluators andmeasurers of fission product nuclear data. A small preparatory meeting isplanned for 11-13 December 72 at Agency's Headquarters in Vienna, to develop
the programme of the Panel in detail.

3.

Study Group Meeting on Nuclear Data Requirements for Shielding, about
mid 1 9 7 ~ (Exact time and place still to be determined; still to beapproved by the Agency's Scientific Advisory Committee Scientific
Secretary: Ch. Dunford).
This meeting is planned in response to the increasing nuclear data needsof the shielding community as expressed e.g. by members of the programmecommittee for the Fourth International Conference on Reactor Shielding heldin Paris in October this year and by a Panel on Nuclear Data Requirements
for Shielding at this same conference. It is supposed to define more specificallythe nuclear data requirements for shielding as emanating from detailed
sensitivity studies whose results from various shielding groups are expected
to become available in about the first half of 1974. The meeting should becomposed about two-thirds by shielding specialists and one-third by nuclear
data specialists. The results of this meeting will be reported at the Third
IAEA Conference on Nuclear Data for Reactors planned for 1974.

4.

Third Conference on Nuclear Data for Reactors. September or October 1974. >(exact time and place still to be determined, still to be approved by the
Agency's Scientific Advisory Committee) (Scientific Secretary: Ch.Dunford)
This Conference will be a follow—up of the two previous IAEA Conferencesin Paris (1966) and Helsinki (1970). Unlike the former conferences this one will
give more emphasis to detailed application fields like shielding, radiation
damage and others. The first meeting of the programme committee for thisconference will take place in Paris on 25 and 26 November 1972.

74

4CM/VIII/7

REPORT PROM THE USSR NUCLEAR DATA CENTRE (CJD)

Note from the Secretaries:
The accompanying report on work at the USSR Nuclear Data Centre(CJD) was received from V. Manokhin, Acting Director of the Centre, during
his visit at NDS in November 1972 for inclusion in the Minutes of the 8th
4C Meeting as the official report of CJD. The original text and an English
translation follow.

754CM/VIII/7

ДОКЛАД
Центра по ядерный данным на 5 заседании
МКЯД, Вена 17-22 июля 1972 г ,ё в , В.И.Поповс обоснования ееполезности. В деятельности по ядерным данным-это выявление
запросов и составлениесписков потребностей. В Сакле и Венедеятельность ведет к изданию РЕНДА.
В Обнинске мы вырабатываем несколько иной подход к просоставления РЕНДА. Мы не просим специалистов, занима реакторами, выдавать нам требования наизмерения, распределять необходимыести между различными сечениями - в этом они неМы просим их выставить обоснованные с технико-экономической
точки зрения требования на допустимую величину погрешности
расчета реакторного параметра, проистекающую из-за неточно сти в ядерных данных. Кроме этого мы просим от них коэффицичувствительности величины реакторного параметра к измеядерных данных. Эти коэффициенты чувствительности со держат всю необходимую с точки зрения выработки требованийна ядерные данные информацию о реакторе и не содержат лиш Вопрос о том, какой совокупностью измерений обеспечить
реакторного параметра с требуемой точностью, с нашей
зрения должен решаться с помощью математического ап 76

4CM/VTIT/7

парата теории планирования эксперимента в теснойсо специалистами как по микроскопический, так и поизмерениям. Для в ыработки оптимального плана важно
относительные стоимости экспериментов. Существенно
также правильно учитывать корреляцию погрешностей при измеи оценке, поскольку на скоррелированные погрешности
существенно жёстче. Информацию о достигнутых кмоменту точностях при измерениях каждого родаиметь, во-первых, для сравнительной оценки стоиэкспериментов и, во-вторых, для того, чтобы делатьо необходимости дальнейшего уточнения величин издостигнутой и требуемой точностей.
точность можно определить только в процессе оценки ядерных данных, так как погрешность, вследствии
систематических ошибок, непредусмотренных авторами, выявлятолько при сравнении с результатами, полученными
методикой. Таким образом, деятельность по оценкеных данных необходима для выработки списка потребностей в:. То есть мы считаем невозможным заниматьсябез теснейшей связи этой деятельности спо оценке ядерных данных.
Как некоторую особенность организации работ вможно отметить еще и то, что реферирование работ в Обменном
формате распределено по темам. Причем сотрудник, реферируюi, например, работы по неупругому рассеянию, будет зани оценкой по этой теме в содружестве сопо измерениям этой же величины, а также по ееинтерпретации.

77

4CM/rai/7ОРГАНИЗАЦИЯ И СОСТАВпо ядерным данным в настоящее время
31 человек и включает следующие группы:1. Группа определения потребностей в точностии планирования микроскопических и интегральных эксперимен тов.
2. Группа по созданию машинных библиотек и оценке
ядерных данных. Основные задачи группы: реферирование вЭКСФОР, реферирование по системе СИНДА, сбор информации
машинных библиотек экспериментальных м оценены
готовка ответов на запросы, постановка программ расчета иоценки нейтронных сечений, составление каталогов. Разработка
автоматизированной системы оценки. Организация оценки и участие в ней.
3. Группа программного обеспечения машинных библиотек
экспериментальных и оцененных данных. Основные задачи группы:ререзапись зарубежных лент с ядерными данными, составление ипрограмм, обслуживающих машинные библиотеки*•. Группа общего математического обеспечения. Основные
группы: обслуживание потребителей ЭВМ Центра по эксплутрансляторов, постановка нового диспетчера, транслятораи мониторной системы ФОРТРАН, программного обеспечения графо и дисплея и т.д.
5. Группа изданий ЦЯД. Основные задачи группы: издание
[, сборников аннотаций и др.документов Центра, отве ты на запросы, обслуживание библиотеки ЦЯД и др.
6. Группа эксплуатации Э Ш . Задачи: а) собственно экс[; б) подсоединение нестандартных внешних устройств:78

4CM/Viii/7

7. Консультант по вопросам
8. Руководитель ЦЯД и его заместитель.
по ядерным данным выполняет следующие виды работ:1. Сбор информации по ядерным данным по СССР и обмен
данными с МАГАТЭ и зарубежными центрами. Совместно с зарубежными центрами разработана система обменного формата ЭКСФОР ив этой системе в ЦЯД прореферировано 100 работ. В МАГАТЭ послана 2, магнитные ленты с записью около 30 отечественных работ и переписано 30 зарубежных лент с ядерными данными наленты отечественного образца.
К создаваемой машинной библиотеке ЭКСФОР, содержащейуже около 200000 точек экспериментальных сечений, создается
обслуживающих программ проверки, записи,и т.д. Написано около 10 таких программ.
Из МАГАТЭ получена библиотека КЕДАК оценна магнитных лентах, содержащая 300000 точек, которая раз множается в ЦЯД и передается потребителям.
2. ЦЯД регулярно вносит вклад в созданиего библиографического справочника СИНДА, реферируя
работы (примерно 10% общего количества мирового реферирова ния).
3. В 1972 г* введена в строй ЭВМ ЦЯД М-222. На ней по ставлен и эксплуатируется транслятор TA-IM, а также новый
более эффективный и надежный диспетчер* Ведется работа попостановке ФОРТРАНА и Мониторной системы.
4. На базе ЭВМ создается автоматизированная система
ядерных данных, включающая машинную библиотеку экс -79

4CM/VIII/7(будет введен в 1973 г.) и набор программ обработкии теоретического расчета сечений.
чередь этой системы, осуществляемая в 1972 г.,усовершенствовать и ускорм-ь процесс оценки и при специалистов других институтов.
5, Ведется работа по планированию экспериментов и опренеобходимой точности ядерных констант. На основе матеории эксперимента разработаны алгоритмы и отпрограммы по трем направлениям:а) для определения необходимой точности микроскопиче ских констант;б) для проверки информативности каждого интегральногов) для подгонки ядерных данных по совокупности микро и интегральных экспериментов.
На ЭВМ ЦЯД ставится комплекс программ расчета коэффицжительности по обобщенной теории возмущений, которые необходимы для внедрения в практическую деятельность
6. К марту 1972 г. Центром по ядерным данным издано б(7 в печати) с приложениями и 12 сборников анно "Ядерно-физические исследования в СССР" Бюллетень
изменил название и будет выпускаться под названием
константы?
7. В 1971-72 гг. по запросам 37 потребителей было от правлено примерно 59000 страниц (в основном в виде фотокопий),В это число не входит основная (регулярная) рассылка бюллетеней ЦЯД и копий атласов БИЛ (2000 томов ).
Центром организована оценка сечений деления урана-235
в быстрой области, размножен и распространен небольшой сборник статей по методике оценки, проведен ряд семинаров и со ( в т.ч. несколько межинститутских) пои координации работ по оценке.
ускорения создания советской библиотекиЦЯД принял решение положить в основу имеющиеся вфайлы оцененных данных и организовать работу по пересмотру
важнейших элементов и величин. Результаты оценки публикуются в изданиях ЦЯД. В текущем году будут опубликованы: оценка урана-238 (полный файл), оценка сечения деления урана-235
выше 10 кэв и др.

81

72-8960
Translated from Russian,
4CM/VIII/7

REPORT ON THE WORK OF THE NUCLEAR DATA CENTRE (CJD)
Fifth meeting of INDC,
Vienna, 17-22 July 1972
L.N. Usachev and V.I. PopovIntroduction
The first step in any kind of activity is to specify its purpose.

In

nuclear data work this means eliciting requests and preparing lists of requirements.

In Saclay and Vienna this work results in the publication of RENDA.

At Obninsk we are developing a rather different approach to the problems
associated with RENDA.

We do not ask reactor specialists to say what specificmicroscopic measurements should be made or to indicate the accuracies requiredfor different cross-sections, because they are not specialists in that area.
He ask them to indicate what inaccuracy resulting from inexact nuclear data canbe permitted (from the technical and economic points of view) in the calculationof a reactor parameter.

We also ask them to give us factors for thesensitivity of a reactor parameter to changes in nuclear data.

These

sensitivity coefficients contain all the reactor information necessary for
determining the nuclear data requirements but no excess information.
The question what combination of measurements ought to be used to calculatea reactor parameter with the required accuracy should, in our opinion, be
answered by applying the mathematics of experiment planning theory in close
co-operation with specialists on both microscopic and integral measurements.
If an optimum plan is to be worked out it is important to estimate therelative costs of experiments.

It is also important to take proper accountof the correlation of errors in measurements and calculations, since therequirements as regards correlated errors are considerably more rigorous.
Information regarding the accuracies which have so far been reached in different
measurements is necessary first for comparing the costs of experiments and,second, in order to see whether any further improvement in accuracy isnecessary (by comparing the requested accuracy with that already achieved).
The achieved accuracy can be determined only in the process of evaluating
nuclear data, since the inaccuracies resulting from systemic errors notforeseen by the authors appear only in comparison with results obtained by82

4GM/7III/7

other methods.

Nuclear data evaluation is thus necessary for preparing alist of nuclear data requirements.

In other words, we think it is impossible

to operate RENDA unless it is closely connected to the work of nuclear data
evaluation.
As a special feature of the way things are done at the Centre, mention
should also be made of the fact that the scanning of works in exchange format
is divided up according to subjects:

staff engaged on scanning, say, works

on inelastic scattering vri.ll be concerned with evaluation for this subject,
in co-operation with experts specialized on the measurement of this quantityand on its theoretical interpretation.
Administration and staffing of the Nuclear Data Centre
The Nuclear Data Centre at present employs 31 persons and includes thefollowing groups:(1) A group for determining the accuracy requirements of data and forplanning microscopic and integral experiments;(2) A group for setting up machine libraries and evaluating nuclear
data.

The main functions of this group are:scanning for CINDA;

scanning in EXFOR;

collecting information for machine libraries

of experimental and evaluated data;

answering requests;

preparing

programmes for calculating and evaluating neutron cross—sections;producing catalogues;

developing an automated evaluation system;

organizing the evaluation and participating in it;(3) A group for programming the machine libraries of experimental andevaluated data.

Its main tasks are:to copy foreign taperecordings of nuclear data and to prepare and implement programmes
for servicing the machine libraries;(4)

A general mathematical group.
with translators

Its main tasks:

to give assistance

operation to customers using the Centre's computer;to install a new despatcher, translator and monitor system (FORTRAN),
to programme plotters and displayers, etc.;(5) The Nuclear Data Centre publications group.

Main tasks:

to publish

a bulletin, books of abstracts and other documents, to answer requests,
service the CJD library, etc.;

4GM/Vlll/ 7(6) Computer operating group.
the computer;

Tasks:(a) the actual operation of(b) to adapt non-standard external equipment, suchas western standard tape recorders, discs, displayers, plotters;(7) A consultant for theoretical questions;(8) The Director of the CJD and his Deputy.
The Nuclear Data Centre carries out the following types of work:(1) Collects information on nuclear data in the USSR and exchanges
data with the IAEA and with foreign centres.

In collaboration withforeign centres it has prepared the EXFOR exchange format system
and 100 works have been scanned at CJD in this system.

Threemagnetic tapes have been sent to the IAEA with recordings of about
30 Soviet works and 30 foreign tapes with nuclear data have been
copied on to Soviet—type tape.
For the EXFOR machine library, which already contains about
200 000 experimental cross—section points, a series of servicing
programmes is being prepared for checking, recording, searching,printing, etc.

About ten such programmes have been written.

The KEDAK library of evaluated data with 300 000 points on magnetic
tapes has been obtained from the IAEA;

this is being reproduced

at CJD for dispatch to customers;(2) CJD contributes regularly to the CINDA international bibliographic
file with scans of Soviet works (about 10^ of the entire world's
scanning);(3) The CJD M-222 computer was put into operation in 1972.

A TA-1M

translator was installed on the computer and is in operation, alongwith a new, more efficient and reliable despatcher.

The FORTRAN

system and a monitor system are being introduced;(4) The computer is being used to provide an automated system of nuclear
data evaluation, with a machine library of experimental nuclear data,plotter, display system (to be introduced in 1973)» and a set ofprogrammes for data processing and theoretical calculation of crosssections.
In the first application of this system to be set up in 1972, it will
be possible to improve and accelerate the evaluation procedure and to
attract specialists at other institutes;844CM/VIII/7(5) Work is being done on experiment planning and on determining theaccuracy required in nuclear constants.

Algorithms have been

worked out and three types of programme prepared on the basis ofmathematical experiment theory:(a)

To determine the accuracy required in microscopic constants;(b) To check the information capacity of each integral experiment;(c) To fit nuclear data resulting from microscopic and integralexperiments.
A series of programmes is being used on the GJD computer for
calculating sensitivity factors from generalized perturbation
theory, these being needed for practical application of theresults mentioned above;(6) By March I972 the CJD had published six bulletins (the seventh isin press) vrith appendices, and 12 books of abstracts, "Nuclear
Physics Research in the USSR".

The GJD bulletin has changed its

name and will be published as "Nuclear Constants";(7)

In 1971—72, about 59 000 pages (mainly photocopies) were sent out
in response to requests from 37 customers.

This number does notinclude the regular issues of CJD bulletins and copies of the BNL
reports (2000 volumes).
The Centre has arranged for the evaluation of uranium-235 fission crosssections in the fast range, has reproduced and distributed a small book ofarticles on evaluation methods, and has held a number of seminars and meetings(including some inter—institute meetings) on evaluation methods and theco-ordination of evaluation work.
In order to speed up the establishment of a Soviet library of evaluateddata, the CJD decided to use as a basis the evaluated data files which it
holds and to revise the more important elements and quantities.
of the evaluation are appearing in CJD publications.

The results

During the course ofthis year the following publications will appear: uranium—238 evaluation(full file), evaluation of the uranium—235 fission cross—section above
10 keV, etc.

854CM/viIl/8

National Neutron Cross Section Center

Request;; for Experimental Data
Twelve Month Period, 1 October 1971 - 30 September 1972

A.

Number of Requests Received

B.

Form of Request

WrittenVerbalContinuing

C.

%

30

21.3

105

74.5

6

4.2

141

100.0

Request Source

#

7,

65
36

46.1

25
15

17.7

141

100.0

#

7o

53
20

37.6

60.3

Plots (# of sets)

85
23

Request answered on telephone

9

6.4

Punched cards (# of sets)

2

1.4

3

Educational Institutions
Industrial Concerns
Government Agencies

25.5

10.7

Requested Transmission Mode 3

Data sent on N.N.C.S.C. tape (loan)
Data sent on requestor's tape
Data listing(s)Xerox copies (Private communications, data
not yet formatted, etc.)

1

#

1

National Laboratories

D.

141

14.2

16.3

3.5

A standing request for certain data, serviced as pertinent informationis received.

3

A N L , BAPL, ISNL, KAPL, LASL, LRL, ORNL, SRL.

3

Some users request data in more than one mode.

86

•

;

:

:

:

.

.

.

.

;

;

.

:

;

'

I

,

•

I

I

'

•

i

-

!- -

i

f

•+-

i- -

'

i1

-

•

1"

.j_

-

J.

. L _.

' T 1

-fi

i

..._

— r- 1 •--i—r—'—• -i- - . ;

1

i

—

1

.

^—

_J

•

:_ _j__:

V
i

_ :

,

_,.-;-:-

I

[

i

'
!

L - l

-]

|
1

; |

.. j
|

1

j

r

.

.

.

.

.

_

.

.

.

1

:.:XL: .wry•

l.l-.:_!.4-, ._4 ._L; :.:„.._.:.
J

1 r i1

-1-

-

4f
i

1
i

I

!

'

!

1

i

.._

*

-i - -

UJ

_

T

Z

,-f-r

',

u_ 10

—

•

-

-

;

-

- -

I
f

0

•

'

-

ii ii 1III
20

•

-

:

—

:

;

• •
*•••:

.............

•

•

-

-

•

—

•

I

I - , : , •_ ;

r

-

-

:

- ;

t r"
. L.:...__.:.4i ....;._!_,.

MM-;
: L-

:

!

—

j

•: r •

-

1

I
"!~

i

i

-y;

! • ;

-I-

1
—

-

•

-

;

:

'

t-~

1
1
10

_.;..

r—

• r

-i |

- -

-

•

•

. —.
•

LJ
CD

-

•

" T " ^ - ;r.j. T•_|: -... \..—\

: :

U ' '

'

-

";

j"T~--

•

• 1 -

-

:

—
•

1
•~ t "-j..

•-. ... . r .

•.

t 4i . -

a

r

•

1 '

*I
I D

•

i

E. Z REQUESTFREQUENCY

-1-

|

• i '

• \—

" ."I

..j

.

•1

.

i •- ( T-4 -1 t:.T!.:;_y.|:.g:
L" " : - -ITL
• j - ~ i~T rf"i"l"
i1.
..L.l_
t!
r

CO
CO
UJ

•4-L 1 '-,

•

'

i " 1

.._;_:—.

4 1-4- : ;

j
1 !
;~ 1

.

UJ-i I .. ; .
• pL T

I
; 1

|" •

1 i
-

-

:

!

l _ L'

j

rj:

—

—

j

Miii
i i

h-;

•

20

-

: ~r.

i

—

-

-: •

- r -

1 '

.

-]-l -: :i

Mr -brlirrrr:

±

•

..
.
.

-4 4-

M
-

1 | : : .
• : i . :

i •

1 ""!

I

1

j I

1

1

j
11..

•

.:;.

1

1

" I"

,

_
r
-

1

"I"

|I

I_U

-i'i-XXJ

i

•

4
i

j

;

.

1
:

i

i -

I"
:.

• " i " •

30

I

1

1

t

1.

j-

•

!

(

.[_.,

-

I

--

I

|

1

• K

"1

j11

-

i

-

1
11

_|. .

~

—

—

•

i

•

I

L1 L
40
50
60
ATOMIC NUMBER

1|

I1
1

70

80

j

90

MM
. .
100

o
3
M
M
M
CO

CD

Requests for—£>>Experimental Data

Rgqus3t origin

Cumulat. 1 Oot 71 Cumulat. 1 Get 71
Totals - hi Oct 72 Totals
r l Oct 72

4Evaluated Data

Incoming from area:
23
!
1

1

i

34

2

70

39

!

4
Subtotal•

Cinda Retrievals

TOTAL

s

I

Cuwulat. 1 Oct 71 Curr.ulat. 1 Oct 71 Curaulat. 1 Oct 71
Totals -1 Cct 72 Totals
1 Oot 72 Totals - 1 Oct 72 !

0

24

4

0

0

43

1

2

x

13

1

0

86

16

JLI

42

12

49
56

12

15

0

183

35

3

7

0

72

11

5

15

3

11

116

19

60

16

140

32

23

0

389

67

1

59

6

1

0

0

0

0

0

60

o

2

55

6

13

4

2

0

16

1

86

11

3

46

0

1

1

0

0

0

0

47

i

4

30

2

1

0

3

1

0

0

34

3

Subtotal

190

14

16

5

5

1

16

1

227

\-*L

;Fol low-up:hDocuments

iNDS origin, ssnt to area:

x

24

1

1

0

2

1

0

0

27

2

2

30

0

7

4

4

1

4

0

45

5

i

3

116

16

0

0

1

1

0

0

137

17

!

4
Subtotal

.11

1

1

1

0

0

0

0

12

2

181

18

9

5

7

3

4

0

201

26

537

51

"'"85

26

36

43

2

817

114

TOTAL S

From-ND3 to other centres (or physicists in area 3) to help fulfill an incoming requast.
CO
CO

I

to area:

T

2
CO

j

801
c+
HO
CD

4CM/rai/9

Comments on filled and unfilled Requests

Prom the request log .listings of l) filled requests and 2) unfilled
requests, one can roughly say that 1/4 of all requests on NDS
have not been as yet fulfilled. This ratio nay drop to ~ l/5 if
one considers, in the list of unfilled requests, particular items*of a given request have been filled.

J1-2.72.
We have registered 114 requests in this 12 month period. 72 of them
are filled, 42 remain unanswered a3 yet. If one considers the samebulk of requests by "items" the figures are: 357 have been filled
or tagged "no information avail."; 95 items are unfilled, thus,,
giving the same ratio as for the overall period of "NDS request
activities, i.e. between 1/4 and 1/5 of unsatisfied -requests.

Item is defined as: - data for one ZAQ- data for a specified RSF- one document894CM/VIII/9

Comments on request activities for the 12-month.,.period (1 Oct 19.71...- •!„ Oct 197?)
A.s compared with the previous period (jul 1970 - Oct 197-1) (notethat this period was 3O?o longer than the present one), the number ofrequests re^_s_tj^rort. at KDS has dropped nearly to the half (224 forlast period. 114 for this period).
1. (1970-1971) Previous period: incoming req. for experimental data : 30
(1971-1972) Present period:
"
"
"
" *
"
19

2.

Previous period:
Present period:

11

11

11

ti

11

n

Previous period:
Present period:

11

it

11

ti

11

11

Previous period:
Present r>eriod:

11

11

11

11

11

it

evaluated data
11

:

26
16

:

50
32

it

documents

Cinda retrievals :
it

11

8
0

Previous period: UDS originated req. for ex p. data
Present period:

: 5'*
18

evaluated data

37

Previous period:
Present period:

It

II

II

II

Previous period:
Present period:ItIIdocuments

M

It

11

Previous period:
Present period:

It

II

"

II

II

It

11

n

53
3

Cinda retrievals : 11
II

It

Q

90

4CM/VIII/9

Experimental Data Dissemination(as of 1 Oct 1972)

Area

Number of data sets*
Cuinulat.
total

1 Oct 1971
- 1 Oct 1972

Number of data l i n e s
Cu mu 1 a t .

total

1 Oct 1971
- 1 Oct 1972

1

531

0

34 921

0

2

254

1

15 639

0

3

1 460

780

211 437

34 3604

169

23

136 20741 399

Total

2 414

804

398 20475 759* Data set: 1 EXFOR subentry or 1 DASTAR

Evaluated Data Dinsemination(as "of 1 Oct 1972")
Area

Number of data s e t s **Cu rail a t .
total

1 Oct 1971
- 1 Oct 1972

Number of clata l i n e s
Cuziulat.
total

1 Oct 1971
- 1 Oct 1971

1

603

368

213 810

121 845

2

622

390

221 474

120 085

3

2 790

1 188

1 374 772

236 584

4

867

454

527 808

130 890

Total

4 882

2 418

2 337 864

617 404** Data set: 1 nuclide for UJOJDL» ENDP/B, Kedak, Boyad, EOL and AUL or one PASTAS

4CM/VIII/9

Comments on Data Piss-ami nation

For the same two periods under comparison, the statistics of data
dissemination has significantly improved (x double)

1.

Experimental data:previous period:
present period:2.

no. of sets:
"
"

38l
804

no. of lines: - 73 474""
75 759Evaluated data:previous period:
present period:

no. of sets: 1 330
"
"
2 418

no. of lines: 1 208 295""
617 40492

4CM/VIII/9

Exfor Data Dissemination at ND3(Overall_Y/ith the exception of 4 entries of Sxfor data from area 3 sent toStory (2UKV7IN) on 10 Jun 1970, 1 entry from area 4 sent to Sowerby(2UKHAH) on 29 Nov 1971 and 2 entries from area 2 sent to Konshin(4CCPIKP) on 11 Aug 1973 and 10 Apr 1972*, all Exfor data have been
disseminated in area 3 to the following countries: Australia,
Bulgaria, Hungary, India, Korea, Pakistan, Rumania and Yugoslavia.
Exfor datafrom area

no. of subentries

no. of lines

1

124

465

2

377

71 407

3

258

1 504

4

15

60

Total

774

73 436* included in this table
B._Period_ Oct. l?19_-_Oct_1971.
Sent to: Australia, Hungary, Rumania.

Exfor data from
area

£•

no. of subentries

no. of lines

1

11

11

2

140

44 322

3
4

110

168

7

53

Total

268

44 554Oct. 1?71 _-_Oct_l972.
Sent to Bulgaria, India, Korea, Pakistan and Yugoslavia.

Exfor data fromarea

no. of subentries

no. of lines

1

113

454

2

237

29 093

3
4

143

1 331

8

7

Total

501

30 88593

A T T E H
KVL . ALL • RES j LBL: TOT

I S O

1.

.iARGED P

NF

F I S S I 0N
ALF ETA NU NUB

006 C
007 N

~6ii NA
012 MO
013 AL014 SI
015 P
016 a
017 CL
020 CA
022 TI
02 3 V025 MN
026 FE~O27*c6
028 NI
CU

STF« I

M
I—I
M

M3

S C A T T E B I N O
EVL, AIL : RES •• LDL

SKL

B3L i SIN I BIN

BNGK, CHARGED P
SCT

TS1

P

i NB

: NT

F I S S I O S
NANF, ALP ; BTA | NU

NUB

PBS

082 PB
O83_BI_'"

690 ra 230
090 TH 232

O92JI 235
092 u 236
092 n 238
093 HP 236

O

M
M

095 AM 243
096 CM 244
098 cr 252

4CM/VlIl/lO

Status of Data Compilation at the Centres

Note from the secretaries: The following statistics have been preparedby each of the Centres for inclusion with the letter from the Centres
to G.A. Kolstad. As of 13 December 1972 no information had been received
from CCDN .

96

4CM/vrn/lO
Data-Compilation Statistics from M N C S CNNCSC Statistics as of October 3 1 , 1972

# of works assigned# of work sent
# of works to be sent by 12/72# of works for which data has
not b e e n obtained

v
n

„„,

~"

# of w o r k s for which author
proofs have been sent andnot yet returned# of works in process

97

CCDN EXFOR Statistics
Status at 18.12.72(counting from the beginning of EXFOR in
July 1970, excluding mere retransmissions)

Received fromSent by

NNCSC

NDS

CJD

236

194

36

126

Subworks

2,289

1,377

294

1,202

Comment records

10 »237

13,642

2,094

16,702

Data records

117,158

14,238

4,753

339,653

Works

CCDN

Estimates;
Time-lag between availability of data and awareness at CCDN :~0 for data from main labs, < 9 months for others.
"""

awareness at CCDN and incorporation into internal (MEUDADA) file :<\<2 to 4 months in 85% of all cases, ~5 to 12 months for "problem" data.

11

"

"

awareness at CCDN and EXFOR transmission :~6 to 18 months typically, e.g. our EXFOR tape 2005 of 8.9.72
contained data from May 1972 and data reported at the Knoxvilleconference (August 1971).

Percentage of data available since the beginning of EXFOR (July 1970) entered into EXFOR :•\-60% (^80% of data important for reactor calculations).
COo4CM/VII/10

EXFOR Compilation Statistics at HDS

liTDS distributed 6 transmission tapes between
No. 3003 on 4 Fe"b I97I and
No. 3008 on 13 Dec 1972.
(The first two transmission tapes contained trial entries and dictionaries.)
These included 201 entries (works) with I389 subentries (data-sets).
addition, 246 subentries were revised and re—transmitted.

In(The revisions

were due to revisions by the authors, adding of more information due to
new publications, and some corrections of compilation mistakes.)
These included 54 entries (works) with 409 subentries (data-sets) and81 revised subentries of data published in the years 1959-1972.

It isbelieved that data of these four years have been transmitted with a completeness of about 6ufo. For another 25$ (20-25 entries) data are available at
NDS and are envisaged to be transmitted in March 1973.

For the remaining

15$ data are requested from the author but not yet received, and some publications dated 1972 will become available only in 1973*
For the years I968 and earlier it is believed that 85—90^ of existing data
have been transmitted including the almost completed Dastar-Sxfor conversion.

The last 10 Exfor-entries resulting from Dastar-convGrsior. areplanned for transmission in March 1973«

Remaining gaps are likely to con-cern mostly less important data such as scattering data on obscure chemicalcompounds.

994CM/VIII/IO

BXFOR Compilation Status at CJD

As of 1 December 1972, four EXFOR exchange tapes have been transmitted by the Obninsk Center to the other three centers. Thesetapes contain 36 EXFOR entries. By the first of January 197"} thenext tape (4OO6) will be transmitted. At some time shortly thereafter corrections for tapes 4002 and 4OO3 will be transmitted. Ey
the end of March 1973 tape 4001 will be transmitted as well as
tape 4007 with about 10 entries. The interface problems with theWestern type magnetic tape units have been solved and tape production
can proceed on a routine basis. The center expects to transmit
about two EXFOR tapes every three months in the future. The centerhas a capacity of producing approximately 100 EXFOR entries per year.

For the period from the inception of EXFOR (since 1970) there areapproximately 150 works from the USSR to be compiled. The present
backlog of untransmitted works is between 100 and 120. We expect
to transmit at least 50$ of these works before 1 January 1974 aswell as all current works. Some of the backlog results frominability to obtain data rapidly from the authors, but we willcontinue our efforts to obtain the needed information as rapidly
as possible.

As far as the period before the inception of EXFOR is concernedat the present time 65 works have been already coded and will betransmitted before June 1973.

The future compilation activities at CJD will assign top priority
to the compilation of current data sets and those from the period
1970-1972 which are still untransmitted. Lower priority will beassigned to the conversion of DASTAR (from USSR) and other data notyet on files but obtainable.

V. Manokhin
30 November 1972100

4CM/VIII/II

Agenda Item lie.

4C - Meeting

Status of conversion from DASTAP. to EXFOR
Priorities for conversion were assigned as follows:
Priority 1 - Isotopes most needed for reactors and shielding.
Priority 2 - everything else.
Conversion from DASTAR

to EXFOR started in February 1970.

The following table shows the progress made:Priority 1

From Feb 1970

J

226

t

From Nov 1971
JTotal_254.2J5

DASTARSi

2JL. DASTAR3!

The 29 DASTARS converted in the last year have resulted in
14 EXFOR entries (50 subentries). All have been transmitted
to the other centres.
Most of the DASTARS were not straight forward conversions,but involved considerable updating and revision of thedata.
The following are still waiting for conversion:
Priority 1 - 7 7 DASTARS
Priority 2 - 111 DASTARS

101

4GM/Vlll/12

Comments on EXFOR
by
J.R.Lemley
A possible criterion of the success of an Exchange Format (EXPOR)

is

whether all data available at one Center are also available at all the otherCenters. In order to avoid the statistical effects of the masses of data
accumulated in various data centers before establishment of the regularexchange system, probably only data compiled since the EXPOR system began operationin1970 should be considered. A more instantaneous measure of the success of

EXPOR would be a comparison of the rate at which data are compiled into a center'sinternal system with rate at which data are transmitted to other centers. An
examination of the time interval between compilation in an internal system andtransmission in EXPOR format might also be an appropriate criterion.

Since only a relatively small fraction of the existing experimental data
have been measured in the NDS service area, prompt and complete transmission ofdata to us from the other Centers is essential in order for us to answer data
requests which originate in the NDS service area. At present most requests forexperimental data cannot be satisfactorily answered only with data already in the
NDS library. However, the inadequate content of the MDS library is to a great
extent compensated by the rapid responses received from most other Centers inanswer to our follow-up requests for data necessary to answer the specificrequests. Generally in order to facilitate rapid response to our follow—up
requests, we ask for and accept retrievals in the user format of the othercenters. A consequence of this is that the same data might have to be requested
more than once since after the first request the data could not be enteredpermanently in our internal system.

The number of our follow-up requests to the* Perhaps 1% according to an analysis of CUTDA entries by Nigel Tubbs.
See the report on the last 4C-Meeting , INDC(NUS)-41, p. 61-62.

102

4CM/VIII/12

other centers could be significantly reduced "by more frequent and complete
transmission of new experimental data in regular exchange tapes.
At present, many of the data in the EDS library are archival in thesense that archival data have ceased to evolve. In many cases we receive
data only after they have become archival. Ideally EDS would like to maintain on file the latest version of every experiment in progress and be able
to update the file instantaneously whenever there is a revision or an
addition to the data.
Since EDS is heavily dependent on the other Centers for many significant
data sets, both old and new, we would be willing to consider compromises andchanges in the EXPOR rules provided they result in more complete and up-to-date
data libraries at all the Centers.
1.

We would consider accepting first-version machine (or manual) translation from the various internal systems, even if they contained only
keywords AUTHOR, LABORATORY, (REFERENCE), ISO-QUAET STATUS, HISTORY
and a data section. If you have an automatic translation button,
please push it frequently and send us the results.

2.

We would prefer not to have transmission of a data set delayed formonths in order to receive an author—approved version on the firsttransmission. (The proposal by NEC3C to introduce a status entry for"not-author-approved" should be discussedo Such a flag should not
replace explicit identification of the source of the data, however.)3»

We would accept (and process) the increased number of retransmissions
necessary to update preliminary or incomplete entries.

4.

We would consider proposals to simplify EXFOR or to make it morecompatible with existing internal systems in order to make translation into EXFOR less consuming of time and manpower.

103

4CM/VIII/12

EDS is particularly interested in information which other centers
may have at>out the types of scientists who use their data .and about
uses to which the data (including 'bibliographic information) are put.
Such information might suggest modification of the types and formats of
information to be included in EXFOR.

NNCSC and CCDN have both suggested

eliminating certain coded and hence retrievable information, and weagree that their proposals should be discussed particularly in connection with the experience of the Centers and with user "feed back".
If, for example, evaluators were the only users of the bibliographicaldata, perhaps only the keywords AUTHOR, LABORATORY, ISO-QUANT and
REFERENCE should be retained because evaluators would presumably
want to read the important references thoroughly anyhow.

What

information in addition to the numerical data do experimental
physicists use?

NDS welcomes commentary and statistics from theother Centers which might help to analyze these questions.
In the future the Centers may want to exchange other typesof (nuclear) data in addition to neutron data.

At present, the

RENDA system is being expanded to accommodate requests for othertypes of data in addition to neutron data. EXFOR could perhaps
be rather easily adapted for the exchange of other types ofreaction data, but it is apparently less appropriate for exchange
of information on decay schemes and gamma spectra.

In addition to

1CM4CM/VIII/12

the anticipated oropopa]s for inclusion of fission fragment dataand .rnmma production data in EXFOR, we welcome the views of theother Centers on the anticipated future of international dataexchange and the Data Center System.

105

4CM/rai/l3
Review of Jjnsglved...iterns from 4C~Memos_
Items which have been discussed but not solver}, and actions that have notor only partially been fulfilled, are listed below. Excluded are corrections
to EXPCR entries.
4C-2/21

11 Oct. 71

Page 1 item 3t

4C-1/19

The question about which secondary numerical data (Asstandards, half-lives etcTTmust be entered in numericalform under G O M O N or BIB, has not yet been solved.
Continued /C-3/52 last page, 4C-2/25. page 3.

8 Nov. 71

The proposed rules for unobtainable data (STATUS = OTOBT) should be enteredin LEXPOR.
4C-3/43

30 Nov. 71

Paragraphs 4 and 5 on page 15 should be included on page IX.2 of theManual. These were omitted_iri XA.-5 without reason. Paragraph 4
was amended in page 2 of AC-2/22,. See also /HC-2>/60 page 5
item 7«
4C-2/23

17 Jan. 71

The proposal

4C-3/47in the second paragraph of page 2 should be entered in an
appropriate place of the Manuals. (Concerning non-retroactive nature of new proposals.)

1 Jan. 72

NDS expressed the need of giving complete bibliography in SXFOR . No objection
was received;but exchange tapes received still containinsufficient bibliographic information. See also ^C—3/57
middle of page 6 and 4C-3/63 re entries I.CO48. and 1.0207.
4C-3/48

Jan. 72

NDS pointed out some extremely important fission data which should be compiledin EXFOR with top priority. Prom NDCC we got at least an
immediate NEUDABA retrieval on thjs subject but the response
through EXPOR transmission was extremely incomplete.
4C-3/51

19 Jan. 72

There are different opinions about alter flags in ENTRY and SUBENTRY records,(page 1 item 5)
4C-3/52

20 Jan. 72

Last page:Comments on 4C-2/21 item 3 about secondary numerical data.
4C-1/21

1 Feb. 72

Page 31 NDS encounters much unnecessary trouble, when the HISTORY ofa corrected entry doss not state clearly what has beenchanged. See also AC-\/22 item 4.

106

AC-l/22

18 Feb. 72

Page 1 item 3»

4C-2/28

1TDS disagrees thatsource of data is not needed after
author approval is received. It is also against agreements
to put the source of data under REFERENCE, See also 4C-3/63.

27 March 27

Some questions on retransmission of corrected entries are discussed,
which may need further consideration.
4C-3/58

3 Aug. 72

A few of the e r r o r s l i s t e d that were found in X4.-5 have not "been correctedyet.
4C-3/59

16 Agu. 72

The errors found in LX4-3 were not yet corrected.
4C-2/3O

1 Sept. 72

Flagging of independent variables in dictionary 24. Question to NTTCSC.
General and other modifiers p.3.
4C-2/31

5 Sept. 72

Keywords and codes, see also 4C-1/3O

107

4CM/Vin/i4
Agenda Item Illb.

Attached is a chart showing the types and number of mistakes found on
EXPOR tapes.
The following TRAITS tapes were considered: 1003
1004
1005
1006
1007
1008
1009

2002
2003
2004
2005
2006
200?

3003
3004
3005

4002
4003
4004

If the same (or very similar) mistake was made throughout an entry, it
was only counted once.
The following were not included, as they can be considered"a matter of taste": - Missing references;- Additional data tables found in the main reference but not compiled;- STATUS; the use of this keyword is very varied among centres; inmany cases DEP was (perhaps) missing;- HISTORY; again, use varies among centres; often not used
to indicate corrections;- FLAG; sometimes used in data-tables of one line; sometimes
in SAN=001, when not pertaining to whole entry.
Most of the mistakes in Quantity fell into the following categories: - Syntax mistakes (missing comma or parenthesis);- Missing or wrong function (eg. E E ) ;- Missing or wrong modifier (mostly REL and PAR);- Confusion between GEM, ING, DfL.
Most of the data-heading mistakes at NDS were the use of EN-ERR when
EN—RSL should have been used.
Most of the RESID-NUC errors were omissions of the G, Ml etc. extensions.

108

I
uij IIH-

III 1 HIin' it 11ini nunuIWill M lii n i l i l l

/ mi

Mill

i 11 II'mii / mi n H i i

If 1 II f

11 I I :Mil /Ii i i l i n III

i

IIIIII

ll

Mill

'II

l II IMl/IM
IIIIIIIM M l l i i 1

Mill'

IMIM M

III

HI

P/ftfT-Wy*\MROAfe- oK.

Illl

<r

II

ni|i

II i

i

Illl

I Hi n u n 1111

i t i n 111' i

/ it

11

1 1 l|!/ II

111 iii

M 1 MM IN1 III

mm in I I

M

ii it n inn mi
UNCLeAH

HIM

TT»<T
•

Ml 1 I V

II III)!

4CM/tylIl/l5

Cumulative Analysis of Record Types in EXPOR Transmission

For every EXPOR transmission tape received by or dispatched fromC C M , Potters routinely tabulates the number of entries, subentries
and records of each type. In the following tabulation the unabbreviatedheadings for columns 4 through 8 are "Bibliographical Records", "Common
Records", "Data Records", "System Records" and "Total Records", respecitvely.
The quantity of new data transmitted in EXPOR is somewhat misrepresented
by these statistics because the following two types of data have been included
without separate itemization.
(1) The statistics include data which were converted from obsolete internal
formats into EXPOR and subsequently transmitted. Such data are generally
old and frequently obsolete. They were anyhow available previously
from at least one Centre and therefore theoretically from all.
(2) The statistics include retransmissions of previously transmitted
entries which have been altered. The subwork totals for each area
may be adjusted for retransmitted subentries using the information
given in the last table.
EXPOR rules have always required complete retransmission of any subentry
which has been changed in any way. In spite of the resulting redundancy intransmission, complete retransmission has been the simplest infallible
method for making alterations without introducing errors. Proposals to relax
this rule were introduced on a trial basis at this Meeting.
See
/ /

110

EXFCR TftPtS OF ABEA 1 ,

NNCSC

DATE

10/10/72

TAPE NOHOBKSSOBSOBKSBIB BifiC. COMM.BEC. DATA EEC. SYST.REC.

TOT.EEC.

DATE

1C01

17

99

618

9

11545

888

13060

22/06/71

1002

16

196

871

86

10763

2000

13720

19/07/71

1003

15

67

428

27

16975

660

18090

26/08/71

1004

9

30

194

6

26447

273

26920

24/09/71

1005

30

203

1335

144

10768

2243

14490

03/01/72

1006

27

752

2729

631

8142

8633

20135

18/04/72

1007

8

109

404

96

8278

1255

10033

15/05/72

1008

30

215

809

125

10215

2270

13419

21/06/72

1009

34

209

1021

98

7397

2121

1C637

10/08/72

1010

9

435

1015

379

2351

5036

8781

06/09/72

10

195

2315

9424

1601

112881

25379

149285IN

MESSAGES

28 HONTHS

H
M
H
•-JI

DATE

EXFOIi TAEiS OF ABEA 2 / NCCC

ro

10/10/72

TAPE KOWORKS

SUBWORKSBID REC. CCHH.HSC. DATA PEC. SYST.EEC.

TOT.REC.

DATE

2C01

9

223

4270

86

38462

2306

4512«

18/11/70

2002

1

9

136

0

40317

93

4C546

25/03/71

2003

1

7

113

0

35767

75

35955

26/03/71

2004

5

12

300

0

22478

112

22890

27/03/71

2 005

S7

733

9163

337

5688

7428

22615

08/09/71

2006

3

42

835

15

30335

431

31616

02/07/72

2007

1

8

200

3

39824

93

40120

03/07/72

2008

1

8

103

0

83154

84

83341

07/09/72

2009

8

155

1582

59

43628

1549

46818

08/09/72

9

126

1202

167 02500

33965312171

369026IN

MESSAGES

28 HONTBS£XFGE TAPIS OF AR2A 3 , NDS
TAP* NOWORKS

SDBiOBKS

DATE

10/10/72

BIB BEC. CCMH.EEC. DATA REC.SIST. REC.

DATE

TOT.EEC.

MESSAGES

300 i

HISSING

3002

MISSING

3003

49

336

2512

87

129a

3185

7108

03/02/71

3004

33

297

1910

41

1825

27 37

6513

13/05/71

3005

27

198

2112

9a

4680

2018

8904

03/01/72

3006

53

371

3185

103

3729

3524

10541

24/06/72

3007

27

138

1461

35

918

1260

3674

26/09/72

5

189

1340

11210

360

12446

12724

36740

IH

2 8 MONTHSDATE

EIPCF, TAPES OF AREA 4 , CJD

TAPE NOWORKS

SUEflOSKS

10/10/72

B I B BEC.

CGHM.BEC.

DATA B E C . SIST.REC.

TOT.EEC

DATS

4001

HESSAGESHISSING

4002

14

76

435

30

736

728

1929

23/12/70

4003

8

59

6 35

12

1669

725

3091

1O/C9/71

4004

7

108

513

37

1737

1142

3429

29/06/72

3

29

243

1633

79

4142

2595

8449

IM

28 MONTHSEXFOE TAPES OF ALL CENTBES,CENTRE

EAT! 10/10/72

NO TAPESSORKS

SOBiOBKS! NNCSC

10

195

2315

9424

1601

112881

2 HDCC

9

126

1202

16702

500

3 HDS

5

189

1340

11210

4 CJD

3

29

2U3

27

539

5100

TOTAL GEH.

BIB

filC. COHH.REC. DATA EEC. SYST.fiEC.

TOT.BEC.

DATE LAST TAPE

25379

14928506/09/72

33965312171

36902608/09/72

360

12446

12724

36740

26/09/72

1633

79

U142

2595

8449

29/06/72

38969

2540

46912252869

563500IN

2 8 HONTHS

I

4CM/Vlll/15

CentreKoSubw

Retransm

New Su"bw

1

NNCSC

236

2079

2

NDCC

2315
1202

0

1202

3

NDS

1304

121

1219

4

CJD

243

0

243

TOTAL GEN.

5100

357

4743

116

4CM/VIII/16
1

WRENDA: World Request List for Nuclear Data

List of Contents

Page *

General Comments.

Format of Input to the Request Pile.

Schematic layout of the format of a request.
(Suggested coding form).

Format of Input to the Status File.

Schematic layout of the format of Status comments.
(Suggested coding form).

Tables:Incident particle (projectile) codes.

10

Quantity (Reaction-modifier)codes

11

Application codes

13

Priority codes

14

Status codes

14

Energy-type codes

15

Sample input: to Request File.

16

to Status File .

19Internal record format of Request File.

20

Internal record format of Status File .

21

Cross-reference listings of quantity codes.
WRENDA Sort
EXFOR Sort
RENDA. Sort
C I N M Sort

22
24
26
28

*

Page numbers in 4CM/VIIl/l6 refer to the internal sequential numbering
which appears under the document number in the upper right corner of
each page.

117

General comments
1.

The system has been split into two separate files; viz - the Request Pile
and the Status Pile. The two files are linked by the Z,A,Q key.

2.

By an agreed date within each cycle, each center should transmit to NDS
two files: -3.

1:

Input to the Request Pile

2:

Input to the Status Pile.

With only very minor changes, the formats of these two files are thoseagreed at the 4 Centre Meeting.

4-

Each request has a 4-digit number assigned by the centre, of which the first
digit, is the centre-number. This number will never change, and must be uniquefor new requests submitted within any one year. This number, preceded by
the year-of-request will be considered as the unique request-identification(REQU-ID). (Note that year-of-request is the year when the request was
initiated, and will never change). When converting the master file to the
new system NDS will reassign request-numbers to all the present requests,
based on these rules.

5.

If anything within a request has been altered between transmissions*then
the complete request should be transmitted, with its original REQU-ID
and the appropriate status code.

6.

Requests may be transmitted in any order, although we would prefer to havethem sequenced by REQU-ID (col. 71-76).

7.

Within a request, records should be ordered by card-type (col. 7 7 ) • Whenmerging requests at publication time,care will be taken not to interferewith this sequence within any one request, i.e. the requester's comments
will not be separated from his request.

1184CM/rai/l6
3
3.

Requests which are "satisfied" or "withdrawn" should not be sent in thetransmission for the Request File, but should be sent as two separate
lists, by REQU-ID only.
A satisfied request is a request which the original requester or relevant
local committee considers to be satisfied, (i.e. the measurement has been
made to the required accuracy). It will not appear in the main listingat publication time, but in a separate list following the main one
and will thereafter be dropped from the publication.
A withdrawn request is a request which the original requester or relevant
local data committee considers is no longer needed. (Usually because
the measurement is no longer relevant to existing programs, or existingdata is now considered to be sufficient). It wi]l be referenced at the endof the publication following its withdrawal and then dropped completely.

9- A block of entries to the status file is defined by the same Z,A,Q andenergy-type. The status file is divided in this way for the purpose ofreview. In the published W R E N M , all the requests for a given Z,A,Q will
be printed, followed by the status comments for each energy-type.

10. There may in fact be very few status comments coming from the centres.
For example, many US requests have "STATUS-NONE", in which case nothing
would be sent.
11. NDS could send a copy of both master files to the other centres immediately
after the files are cbsed for publication.

12. NDS could send to the other centers, listings (or tapes) of the requests
originating from their area, sorted by country, together with relevant statuscomments, for use in updating requests.

13. NDS is willing to supply all the WRENDA programs, as they become operational,
to any centre who is interested. The programs will be written in PL/l
for running under O.S.
14.

The character set to be used is the same as for EXFOR.
119

4CM/VIII/16
4
Input to Request File

Request Card
(Card-type A.)

First card of each request. One and only one per year/
request number,col. 1 - 2

S^ 2 character element symbol. Left adjusted.
FP=-FPROD in the CHTOA and present RENDA. sense.

3-5

iLi. 3 digits with leading zeroes. (000 for natural elements).
OR, 3 characters for compounds as used in EXFOR and CINDA.

6
7-26

Blank.
Projectile, Reaction-modifier. Up to 20 character string
left adjusted in field with a comma separating the twocodes.
See Page 10 for projectile codes.
See Page 11 for reaction-modifier codes.

27 - 30

Blank.

31 - 36

E-min« (ev). n.nn+m or blank.

37
38 - 4344
45 - 46

Blank.
E—max. (ev). n.nn+m or blank.
Blank.
Application code. Up to 2 characters, left adjusted in field.
See Page 13.

47

Blank.

48

Priority code. 1 character. See Page 14.

49

Blank.

50 - 53

Accuracy (in ^) nn.n or blank.

54 - 69

Presently unused.

70

Status code. 1 character. See Page 14 -71 - 72

Year of request. 2 digits.

73 — 76

Request number. 4 digits, of which the first is the area-

77
78 - 80code (as for EXFOR).
Card-type 'A'
Blank.
120

4CM/rai/l6
5Name c a r d(Card-type B)

Second card of each request. There may be more than one
B-card, but all institutes must be from the same country in
one request. Multiple countries necessitates multiple requests,

col. 1 - 15
16 - 18

Blank.
Institute. 3 character code, left adjusted. The last 3 charactersof the EXFOR codes, which should be the same as the CINDA. codes.

19
20 - 55

Blank.
Requester's name. Up to 36 characters, left adjusted in field.
Same coding procedure as EXPOR.

56 - 70

Presently unused.

71 - 72

Year of request. As on card-type A.

73 - 76

Request number. As on card-type A.

77
78 - 80

Card-type. f B f
Blank.

121

4CM/viIl/l6
6

Comments Card

These cards give further free text comments on the reaction(Card-type C,D,E) and accuracy, if needed, and the reason for the request.

col.

1-19

Blank.

20 - 69

Free text comments.

70

Blank.

71 - 72

Year of request. As on card-type A.

73 - 76

Request number. As on card-type A.

77

Card-type 1 ' C

for comments which further specify the reaction.

'D'for comments which further specify the required
accuracy and resolution.

'E1

for comments concerning the reason for therequest and any further information therequester may care to include.

78 - 80

Blank.

Note: The comments cards must be in C,D,E

order.

122

Numbers
0, C zeroI one
3, , 2 two
5 <lv.
^ s«v«n

IAEA NUCLEAR DATA SECTION

Coded

CheckedPunchedVerified..

teo.c'ven
C&.r-cL.

*/
H

L-...J

Sfcct^S
Pro'iectite,

CoolC

Mi,

!

Pi

•»
..fJ..l_(..l...l,..I..J_XJ.. I I
i

,

I

I

'

'

'

'

'

' i. I

i

I

i i

•

i i i

|_j i

i

i

i

i

i

i

I

i i

i i

i

i i

i i

i

i

i

I

I

i

i

I

i

i

I

i

i

i

'

I

i i •) | _ l _ J L_L_J

I

i

J_j

i_'.._!_ i.. . L L L _ '

,

.

i

i i

i

i

i__| L _ I

i _i

i

j_ | _ j \ _ ! _j

l.._

L_

f, j

I

I • L_.l—

•

i i i

I

i : \ __i_j

i

it

I

i ,1

I

i _ i I f f t

i

i

•

i

I

•

i

i

i

.

,

•

l i

i

j

I J_

l i

l

lI

t

l

i i._

" " "
,

•

I

I

f '

•

»_j_J

1 /_

..J

l_l~.i} -<t—i t i_J

" * < ?

JLXJ_UIi I i i I i I . I I I I .. l_l._.L-t L—I I—J—i L—i I _!_L_LJ.-..-L..-Ll_ i - I _J_JL J._!_|_ I... I ...'... J ...I - I 1.J...I L I
I I t i I • i • • I i I I i I I « • i I l l i l I i • • l - I I I , ) I I - l _ ! _ L . . L l _ L L J . _Li-.l_i_.L,
I I 1 i I I i I , I I I i | | [_J_J

''

I '

I I '

I—i

I

I ' I

1 L.J j | rl.J._l>_l. L L. 1 l._i_.l...J...J.J...LJ

I - l_.l.....l . L. i . .I.-L.J

I
I
I
I
I
I
1 I J i_..l _I.J_l._L_i.J....l..l.. I _l.l_L..I_.l.. JJ. .J_I...LJ...I.-L_J..1...L.L -l-l-.L.

..L...1-..I L

ro
i

i

i

i

'

'

I

'

I

I [

i

i

4—1

I I

I

I

I

'

'

•

I

I I

i , 1 i—i—i—L

4CM/VIII/16
8
Input to Status Pile

First card of each comments-block.

col. 1 - 2

S^One and only one per block.

2 character element symbol. Left adjusted.
FP = FPROD in the C H T M and present H E N M sense.

3-5

A^

3 digits with leading zeroes. (000 for natural elements)
OP, 3 characters for compounds as used in EXFOR and CINDA.

6
7-26

Blank.
Projectile, Reaction-Modifier. Up to 20 character string,left adjusted in field with a comma separating the two codes.
See Page 10 for projectile codes.
See Page 11 for reaction-modifier codes.

27 - 30

Blank.

31 - 40

Energy-type. Up to 10 character code, left adjusted. See Page 15«

41 - 77

Presently unused.

78 - 79

Card sequence. '01'

80

Blank.

Second and following cards of each comments-block.

col.1-50

Reviewer's comments.

51 - 77

Presently unused

78 - 79

Card sequence. '02', '03', etc.

Notes

It is recommended that card number 2 contain the name and instituteof the reviewer, but this is optional.

124

NumborsL«tt«rs0

0 <y zero'1£ ,2 two
5 five

IAEA NUCLEAR DATA SECTION

a.

Coded

CheckedPunchedVerified...

z
s

savan

J

Pro
o j Q.cji

...*

! 0,1

J J i...

...I . . . 4 . 4 . i - . J _ i . _ . l!_—4. 1—n o-n\ c.
i I ! I_ji

! _ j | _ i L J.._L_LJ_.LJ_J

I i

J. i

i i i

i • i I

I i

ii

I

I. I...L.L.A

L.t_.l_L I I I I I I I I I

I I I I I

• i i II

I..J-JL..!J_I._I_JLJ.

I

I I I

|_J

I

I i I

l_l_.t .J-'l i - u .<.. I -!

I \ L

PA)

I
I

I I ' I I

J_L_1_J_J_I_I_LJ_LJ__1.

.1.1 I I 1

I I I I I I I_.Li._LL

J.J.

I

I i i 1 i._t_L.Li..L.J f J._U I.J i i ±
•

'

'

'

J •

!

i i

XJ-LJJLJ.I

•

1I I

I

i

I

I I i I 1 I Ii

-L_L

» I

! I

I

i I

0,6

03:

L i i. I LjLi_4_-i-J~.

i i J-Li.a-1-iJ-Lj-iL-L.J-t-i-t•.<-•!.. U.J,i ;I 1 I I I i

I 1 I I 1 i I. t I !_.!_ I

I i I

..I.

!_I

1

I I

I

I

I

I

I

i l l . !

. . I .i i i

i ' , i

I I

I

I

1.1

I

I

I

•I-J

I

' I 1.1O\-LJ-JL

J_L_-L12.!

4CM/rai/i6
10Incident, particle (pro.iectile) codes0-

No incident particle

G-

PhotonN-

NeutronP-

ProtonD-

Deuteron

T-

Triton3-Helium-3

A

-

Alpha

LI6 - Lithium-6

More to be added, as required.
This list also defines the sorting order.

126

4CM/VIII/I6
11

The following table gives a list of the quantities recognizedby WHENDA and their sorting order.

Quantity (Reaction-modifier) Codes
LDP
LQN

Level density parameters
Discrete level structure (Energy and spin and parity)

TOT
EL
EL,DA
INL
INL,DAIHLjDS
INL,DA/DE

Total cross section
Elastic cross section
Differential elastic cross section
Inelastic cross section
Differential inelastic cross section
Energy distribution of inelastic neutrons
Double differential (energy, angle) inelastic crosssectionTHS
SCT
SCT,DA
1TON
ABS
G
G,DE

Thermal scattering law
Total scattering cross section (elastic + inelastic)
Differential total scattering cross section
Non-elastic cross section
Absorption cross section
Capture cross section
Energy distribution of capture gamma rays

ING
GEM
N
211
3H
ITEM
P
NP
D
ND
T

Photonproduction cross section in inelastic scattering
Total photon production cross section
Neutron production cross section
e.g. (p,n)
Two neutron production cross section e.g. (n,2n)
Three neutron production cross section e.g. (n,3n)
Neutron emission cross section
Proton emission cross section e.g. (n,p)
Neutron and proton emission cross section e.g. (n,np)
Deuteron emission cross section
Neutron and deuteron emission cross section e.g. (n,nd)
Triton emission cross section

NT
3
A
F

Neutron and triton emission cross section
Helium-3 emission cross section
Alpha emission cross section
Fission cross section1274CM/VTII/16
12

1IF

Second chance fission cross section

JILP

Capture to fission ratio

ETA

ITumber of neutrons emitted per neutron absorption

KOIT/ETA

dumber of neutrons emitted per non-elastic process

1IU

Number of neutrons emitted per fission

NU,,DL

Information on delayed fission neutrons

HU,,FP

Information on neutrons emitted by a given fragment

NU,DE

Energy spectrum of fission neutrons

F,DS,,G

Spectrum of prompt gamma rays emitted in fission

F,,TER

Fission product mass yield spectrum

F,,,FF

Information on energy, angle or velocity distribution

e.g. (IT,G/N,P)of fission fragments
RES

Resonance parameters

ABS,RI

Absorption resonance integral

G,RI

Capture resonance integral

F,RI

Fission resonance integral

The following changes from the current REHDA are recommended.
1)

The "quantity modifiers will no longer exist. They will be relegatedin most cases to the comments to a request. In some cases where importantthey have been made a part of the VfflElTDA quantity definition. In particular
this applies to resonance parameters (RP), inelastic gamma rays (DNG),
non-elastic gammas (IIEG), neutron emission (iJELi), n,2n, n,3n, etc.
2)

Deleted were
CHG

Fragraant Charge

REM

Disappearance

ACT

Activation

FPG

F i s s i o n Product Gammas

HPR

Neutron Production
Activation Resonance Integral

1284CM/viIl/l6
13

Application Codes.

Rb

Fission Reactors.

RA

ii

RB

it

RC

it

RD

it

n

i

Core Physics.

»

Shielding.

»

Dosimetry.

*

Radiation Damage.

it

it

it

Fb

Fusion.

Nb

Safeguards.

Sb

Space

129

4CM/VIIT/I6

14

Priority Codes.

1 digit codes.
For fission reactors as used in current R E N M ,see R E N M 72, pages vi and vii.
For fusion a different criteria has been approved by the International
Fusion Council, see I2iTDC(NDS)-45/l'» page 46.

Status codes.

+

New request.

A

Modified due to partial satisfaction.

B

Modified due to partial withdrawal.

C

Altered - minor changes which do not affect the menaing of
the request.

1304CM/VlIl/l6
15

Energy-Type Codes

THERMALRESONANCE

Thermal energy range-

FAST
THERM.AV.
PISS.AV.

Resonance energy range
Past energy range-

Thermal spectrum averages
Fission spectrum averages

This list also defines the sorting order.

131

/.$Л

WREfi/bfl

КG~QUEST Í-ОКПн-ть...

^Й& IAEA NUCLEAR DATA SECTION_....»

ЛЕ

c dcd

i

'5 f!v.
? seven°

S
J

checkedPunched...

Verified/?e<jr,ij así1v/£C-r

Qppt- Prior- йссогасу

StatesрГ-^-^, з г ^ ^ ££ ^| F ^f£/?"/"> Uí-Cj Ц ( e ^

t;ie

Ач

A ^ *°^ > *--—^.. :-. t,
Ib/Г1 "25'^*'â^^^...-C.J..l..t_i__L.J._.

..X-^I-JL-.. . , . I . , , , • • •, , .

Ll=jífO*i«lOt-

I i

IIj

'

1

1 '

1 1 '

I I 1 '

I 1 1 I

1 1 I|

: ! I I

I. J..I..J

1 1 ! ¡. > . !

1 1 t; I I II

I 1 ; 1 l

I

~fr
.

JB..
_ 5 _

s I._]J

_

_

_

_

-J-J—j. ..„' ,',..'.. .L-J-1..J—1—L.J-.j'-J—i—i .Л-i—J—L-i..i___JL -l__j_jLa_J.._-j_!._l_L.

______._j-__i__LL-LJL_L_L

L 1 . . . L- f - J—»

Requesters
5Г5...i 1..1 .1 i - J 1 » t. 1. 1 1 ! ' » . . 1 • , 1 ! 1 1 t Iо* гессЦол ( c ) , a t t i " - » w Í-Ь) o.^.0L

Co^^_ofs

I i

11 I

с ! ! 1I [ iII

I 1I M I ' ) " . !

•¡

•

i

i

1 I

t • 1 i

)

I I

I

i i

, i i 1 11 ilI и

| , lI I 1 l

)

.

_ .
_

L_L.
| _ 3 _

C'?,'"c¿" ^ ^ 5

rc-^o'v «J*c. CG).
"" &<¡~W~, .д.,|__£;

1 ! _j_Ljl___a_L_l J_L..t-J....L.i.L. S.. 1 ...I - L i..-!_l_. 1... I ...L j ...I _. 1 1 . J.. l I.. I .

1'; _ ~ ?

_

/VgTgrh.gLh. ,Г,оЛ\ ,пЛЛ,Т\ ,/g-O-,qTrb_g, ,0^.4.cuCiA7T¿,o.<vtS>...¿>,c<¿-,o^.b./v>i6ib,u|P,P,(,|tr;(?i , g f F , g C i T | . l

_

_

!

'

r^-

щ

-

йШ

i/^l^l^i/il 4^1 I I I I ' I/^с^о-Л^/Vu/vitór

I

1
I

I

.

) I

I !

i 1 1.. I 1 i

i . l lиI l!

__•___,, ¿_l..._l.j_LJ_.Lj._.t. L J . _ L J _ . L _ ! _ . L .

l! I

l

;

l 1 , 1 1 . 1 L l . _ l . . l . . L...I . I . . I . . . . U .
1!

I

1 1 J I J . X - . U L . . J - . L ! . J _ _ J . _ . . . . - L I . - U J . . J - . . . L . L . L . . L . J . . . . L L . . I . . . L . I.

... 1 ,1 I 1 ! 1 1 1 t I • 1 1 ) 1 1 1 i i I I I 1 1 1, .1, , ,.j. 1—1 L-4-J I — L j — I — ( — 1 — 1 — I — I , I. ,1 , I , I i—1—L-J-JInÎCq^u^ ^

c

i

:

[

I

^
^

'

•

)

i

H
ьн

i

H-

I
, Ъ, S.

.!_

1

1

Numbers

Letters0i. X

c zero

IAEA NUCLEAR DATA SECTION' 1 one,2 t w o
5 fivea. seven

z
s
T

Coded

CheckedPunchedVerifiedlfl:

Project iic,

yr —

r |»
i

i

!

•'

90

32

i

1O

ffff
11.- 1*3I

1 I. •I ''! l _ L _ ' _ . L . . i - . l . .l.,..l.,l. .1—I_J

A ! 1 1 1I I I I 4.

I

I I

I

I

I

I

I

( I

I

I

I

I

I

I

I I

.

[ [_}

'

'

I

)

i

'

I

'

I

'

i

I

I

I

i

i

i

[_J I

L_.! _ . [ _ J

'

I

'

[

t

I

i J_J _ t

I

I [

I

! I,. J _ J£)_„'_!_*.- <_..'...'|._i._.L..i_i(C:

I—1—J-!.l_.i J . . I . . I,,,l>,y,

1 1 1 1 1 1 1 1 1 1 1 1 11

' i

JL.1..J-- L L . J . - I . .i..J..i._i..-L-.L.J...LJ...L.i - ' - 1....1.J.. 1

1 J.._LJ._i_. L 1 . . L 1 . - L U . J . . : . . I .l.l_i..L..Il.-.J.J-J...LJ....I.-L_.Lj...-l-..L-L-i...L-J.....l...l....L..I..

i i I i

M
ON

1

I

1 1

1

1

I

1

1 1

J •
£••

Letters
0
iX
2
S
T

Numbers0, Cf lero

IAEA NUCLEAR DATA SECTION

1 one

A , 2 two
5 five^ seven

Coded

CheckedPunchedVerifiedon

S'r,

Prior,-.-oA-^^et:A"
i.6

|PU

I

ft

I

1

I

I

J

3...
i
!

I

I

I

I

J

I

I

,

I

!

I

I

j

[ |_J

l

i

l

t

I

1 I

I

I I

I

_ | _ [|_J J |

J--J ! _ i _ . ' _i_LJ_J 1 I' l• i ' l

I ' '

'

i

j

[

j__

'

'

I

I

-'-

'

j

1.JLJ....1...I.

17

Cc) ;

(Cbo/fi')._! ».ii?i.ClSfJ.fci

I.~-'I.'.. I. I...I
I

I j

I

I

• I

I

I

I 1

I

I

I

I

1 I

I

[

ii

. 1 i . l i i i i 1...J-'' I -!- i - i . L J - l - i - i . L L .

i I i i I i i i i I i i i i , I I , I i i ) i i i i . I I i i .j-J..I._i..J...l...Lj.J.._.L.l
I

I

I

ic

'

I.. I-.J...I. I...I ...i. l._J !
'

'

00 IH
ON

'

I

'

'

..u..jI ,|, ,!•„ I

L-J ;•, i ,1 I

I'

1, 1 1,1 i—i L.

Numbors
0, CT zeroI on.
X , 2 two
5 fiveJ- s«vanE ^ !AEA NUCLEAR DATA SECTIONE

f * O J ft. O C"< V *&• 5

2
S
J

Coded

CheckedPunchedVerified..

fN. 4 ? ^ C r I i
I/O

I...!—4 .1—J..

3-4
ftf f>-n\ C.

\

I I I • I I 1 I L.

-i-

.1 i | i i i i l._i_i.. I_J_.

I I I

Oil
TO.

A

, ^

i
! I

I I ; I I I I 1I
II

J_i_|_J

I I I

i I I 1Ii l l i

-LLX-LJ

J_i..J_L_L

•I

I

I

I

I

[

•

, I I

1

I I

I

I ! I I I I I I I I I 1 ! I I

I I I I I

j L L L x - ..! I J - L

I

I

I

I

0,?

_t__L i l_J._.i ..i... J_ J J !._.! !.J_L_i_X . 1 ' .-!-L-:_X_!,-J-J
I'— L L l J - L i - L J I i i Ll_[.Ji..i....i-±.J_t-i-j._lJ-.X_i_..l.j..J. .L.v.i.. i

I

1

I

-i !

i . .1 !

•: i

1I I I ' I I I
J ' i i '
I

I

I

I

I I

•

1 L-L-LJ-1

I I I I I I I

I I

I

I

I I

I I

1 , 1 1 1

U-J-J-

l I I

i

i

I.

I I LI.

I

I

L.i_L.j_
I

I

;

I

I I

I

A rt
1. T

! i I I

111]

i

12.:

I

i

i....

4CM/VlIl/l6
20

Internal record format of Request File
col.

1-2

Application code

3-5

Z

6-8

A (internal numerical equivalent for compounds)

9-11

Projectile (internal numerical equivalent)

12 - 15

Reaction-modifier (internal numerical equivalent)16

Priority

17

Status code

18 - 19

Year of request

20 - 23

Request number

2A
25 - 26
27

Col.

Card-type
Card sequence within typeArea cods - first character from Request number

28 - 30

Country code

31 - 80

Columns 1 - 4 4 and 50 - 53 of card type A;"

16 - 55 of card type B;"

20 - 69 """C,D,E.

1 - 2 3 and col. 27 - 30 are constant on all records within one
request.

Col.

3 - 15 define a "block" at book-printing.

Master file: sorted by: Year of request; request number; card—type;card sequence number.
Book sort;

Application code; Z; A; projectile; reaction-modifier;year of request; request number; card-type; card sequencenumber.

Reviewer sort-. Z ; A; etc. as for book.
4—Centre sort;Area; country; Z; A; etc. as for book.

1364CM/VlIl/l6
21

Internal record format of Status Pile.
col.

1-3

Z

4-6

A (internal numerical equivalent for compounds)

7-9

Projectile (internal numerical equivalent)

10 - 13

Reaction-modifer (internal numerical equivalent)

14 - 15

Energy type (internal numerical equivalent)

16 - 17

Card sequence within type

18 - 67

Columns 1 - 40 of first card
Columns 1 - 50 of second and following cards.

68 - 72

Presently unused.

Col.l - 15 define a "block" at book-printing, and are constantfor all records within a "block".
Master file;sorted bys Z; A; Projectile; Reaction-modifier;
Energy-type; card-type; card-sequence.

Book sort;same as master file.

137

4CM/VIIT/16
WR"NDA SORTWRFNDA::"XFORACT
E L . POL
-L.POT22
R E NO A

CI NOA

NPR
NPRA
NPRE
NPRT
ACT

NPR
NPR
NPR
NPR
ACT
POL
POT
STF
CHG
FPG
REM
RIR

STF
CHG
FPG
REM
RIR
0, F
О ,LDP
О ,LQN
О ,NU
A,N
G, F
G»N
N,2N
N,?N
M,2N
N,?N
M,3
N,3
N , 3N
H, A
N, A
N ,ABS
N .ABSiRI
N.ALF
N ,O
M,D
N.'~L
N.HL.DA
N.^TA
N,F
N.F.OF,,G
N.F.RT
N.F,,TER
N.F»,.FF
N.G
N.GtDE

N,GEM
KJ.GEM
N , ING
N . TNGN , INGN , INGN , INC
N,TNL.DA
N.INU.DA/DE
N . INU,DE
N.NA
N,NO
N,N£M
N.NEM

SF
LDP

LDL
LVL

LDL

SF/NU

N2N
N2N.DA
N2N.DA/DE
N3
N3.OA
N3N
NA
NA.DA
ABS
ABS.RI
ALF
ND
NO. DA
EL
EL.DA
ETA
NF
NF.RI
NF.»TER
NF,,,FF
NG
NG.DE
NG.RI
GEM
GEM.OE
GgM.DA/OE
ING
ING.DA
ING.OEINL
INL.DA
INL.OA/DE
INL.DE
NNA
NND
NEM

AN
GF
GN
N2N
N2NE
N2NA
N2NT
NH
NH A
N3N
NA
NA A
ABS
RIA
ALF
ND
ND A
SEL
DEL
ETA
NF
SFG
RIF
NFY
FRS
NG
SNG
RIG
NF.GE
NEGT
DNG
DNGA
DNGE
ONGT
SIN
DINA
DINT
OINE
NNA
NND
NEM
NEMA
NEME

GF
GN
N2N
N2N
N2N
N2N
NHE
NHE
N3N
NA
NA
ABS
RIA
ALF
ND
ND
S6L
DEL
ETA
NF
SFG
RIF
NFY
FRS
NG
SNG
RIG
NEG
NEG
NEG
DNG
DNG
DNG
DNG
SIN
DIN
DIN
DIN
NNA
NND
NEM
NEM
NEM
138

139

EXFOR

EXFOR

24

SORT

RENDA

С INDA

CHG
FPG
NPP
NPRA

CHG
FPG
NPR
NPR
NPR
NPR
REM
RIR

NPPE

NPRT
REM
PIR

LVL
AN
GF
GN

O .LQN
-\,N
G, F
G,N

N . ?NN , ING
N.NFM
N,N«="MN . NF M
N.NON

DNGT
NEMA
NEME
NFMT

N . NU t , F F

NU F

о ,N
N,4FS
N» A8SN» ABS.RI

N2 NE

SNET
PN
-/WID

-/PCS
A3S
ABS.RT
ACT

N.ALF
N.EL
N.FL.DA

ALF
EL

N.ETA

ETA
GHM
GEM.OA/DE

N.GEM
N,GEM
N, TNGN, INGN, INGN, INLN.INL.OA

EL.DA
EL,POLGEM.DEING
ING.DA
TNG,OHINL

INL.OA
INL.DA/DE

N . I NL , DE
0 ,LDP
N,2N

N,2N
N,2N
N»3
N,3N

N,A
N,A

INL,DELOP
N2N
N2N,OA
N2N.DA/DE
N3

N3.DA
N3N
NA
NA,DA

N.O
N.O

NO

N.NEM

NE M
NF
NF.DE,,G
NF.RI
NF,,TFR
NF,,,FFNG

N,F
N.F.OE..G
N,F,RT
N,F«,TSR

N.F,,,FF
N,<3

N,G,DE

GF
GN
N2N
DNG
NE M
NEM
NEM
SNE
NUF

NO.DA

NG.DE

RP
RP
ABS
RIA

ACT
ALF
SEL
DEL

ETA

NE G
NEGT
NEGE

DNG
ONGA
DNGE
SIN
DINA
DINT
DINE

LDL
N2N

N2NA
N2NT

NH
NH A
N3N

NA
NA A
ND
ND A
NEM
NF
SFG
RIF

NFY
FRS
NG
SNG

RES
RES
ABS
RIA
ACT
ALF
SEL
O£L
POL
POT
ETA
NEG
NEG
NF.G
DNG
DNG
DNG
SIN
DIN
DIN
DIN
LDL
N2N
N2N
N2N
NHE
NHE
N3N
NA
NA
NO
ND
NEM
NF
SFG
RIF
NFY
FRS
NG
SNG

140

N.G.RI

NG.R1

RIG

N,NA

NNA

NNA

RIG 4 C M / V m / l 6
NNA

N.ND

NNO

NND

NND

N,NP

NNP

NNP

NNP

N,NT

NNT

NNT

NNT

N.NON

NON

SNE

SNE

N.NON

NON,DA

SNFA

SNH
SNE

N,NON

NON.DESNEE

N.NON/ETA

NON/ETA

ETA

FTA

N,P

NP

NP

NP

N,P

NP.OA

NP A

NP

N,T

NT

NT

NT

N.T

NT,DA

NT

N,NU

NU

NU

A

NT
NU

N.NU.DF

NU.DE

SFN

SFN

N,NU,,DL

NU,»DL

NUO

NUD

N.SCT

SCT

SCT

SCT

N.SCT.DA

SCT,DA

SCTA

SCT

0 ,F

SP

O.NU

SF/NU
STF

STF

N.THS

THS

TSL

TSL

N.TOT

TOT

TOT

TOT

141

4 C M

WRENDA

O,F
O,NU
N.ABS
N.ALF
A.N
N,EL»OAN.INL.OA
N.INL.DE
N,INL.DA/DE
NiING
N.ING
N.ING
N,ING
N.ETA
N.NON/FTA

EXFOREL.POL
EL.POT
STP
3F
SF/NU
ABS
ACT
ALF

EL,DA
INL.DA
INL.DE
INLtOA/DE
ING
ING,DA
ING.DFHTA
NON/ETA

N,F,,,FF
G.F
G.N
O,LD°
O.LQN
N,?N
N,2N
N.2N
N.2N
N.3N
N,A
M»A
N,D
N.O
N«GEM
N.GEM
N.GFM
N.NHM
N,N~M
N,N€M
N.N6M
N,F
N,F,,TF;R
N,G
N.3
N,3
N,NA
N,ND
N,N»
N,NT
N.P
N,P

NF,,,FF

NF
NF,,TER
NG
N3
N3.DA
NNA
NND
NNP
NNT
NP
NP.DA

N,T
N,T
N.NU

NT
NT,DA
NU

LDP
N2N
N2N»DA
N2N.DA/DEI
N3N
NA
NA.DA
MD
ND.DA
GEM
GSM,DE
GeM.DA/DE:
NEM

RSNDA

/!m/16

СINDA
POL
POT
STF

ABS
ACT
ALF
AN
CHG
DEL
DINA
DINE
DINT
DNG
DNGA
DNGE
DNGT
ETA
ETA
FPG
FRS
GF
GN
LOL
LVL
N2N
N2NA
N2NF.
N? NT
N3N
NA
NA A
NO
ND A
NEG
NEGÉ
NEGT
NFM
NEMA
NEME
NFMT
NF
NFY
NG
NH
NH A
NNA
NND
NNP
NNT
NP
NP A
NPR
NPRA
NPRE
NPRT
NT
NT A
NU

ABS
ACT
ALF
CHG
OEL
DIN
DIN
DIN
ONG
DNG
DNG
DNG
ETA
ETA
FPG
FRS
GF
GN
LDL
N2N
N2N
N2N
N2N
N3N
NA
NA
ND
ND
NEG
NEG
NEG
NEM
NEM
NEM
NFM
NF
NFY
NG
NHE
NHE
NNA
NND
NNP
NNT
NP
NP
NPR
NPR
NPR
NPR
NT
NT
NU

142

N.NU,,OL

HU, «DU

N,№1,,^=
P,N
N.ABS.RI
NI,F,RI
N.G.PT

ABS.RI
NF,RI
NG.RI

N.R-S
N.R^S
N.ECT
N.SCT.DA
N,EL
N.F,OE.,G
N.NU.OE
N.INLN. NON
N.NCN
N.NON
N.NON
N.G.DE
Ы.ТПТ
N.THS

-/WID
-/PCS
SCT
SCT.OAFL
NF.DF. ..G
NU.DE
INL
NGN
NON,DANON,DE
NG.DE
TOT
THS

NUD

NUD 4СМДИ1/1б

NUF
PN
REM
RIA
RIF
RIG
RIR
RP
RP
SCT
SCTA
SFL
SFG
SFN
SIN
SNE
SNHA
SNEE
SNET
SNG
TOT
TSL

NUF

27

REM
RIA
RTF
RIG
RIR
4F.S
RES
SCT
SCT
SEL
SFG
SFN
SIN
SNF
SNE
SNF
SNS
SNG
TOT
TSL

143

4CM/VlIl/l6CÎNDAWJïfcMDA

ÏXFOR

0, F
O.LQN
O.NU
A.N
P,N
N,»,8S

SF

SORT

28

RENDA

CINDA

LVL
SF/NU

N,EL,OAN.INL.M
M.INL.OE
N,INL»DA/DE
N»ÏNG
N.IMG
N.TNG
Ы,ING
N.STA

îTA

AN
PN
ABS
ACT
ALF
CHG
DEL
OINA
DJNE
DINT
ONG
DNGA
DNGE
DNGT
ETA

N,NON/PTA

NON/ГТА

ETA

ETA

FPG
FRS
GF
GN
LDU
N2N
N2NA
N2NE
N2NT
N3N
NA
NA A
ND
ND A
NEG
NEGE
NíGT
NEM
NEMA
NEME
NEMT
NF
NFY
NG
NH
NH A
NNA
NND
NNP
NNT
NP
NP A
NPR
NPRA
NPRE
NPPT
NT
NT A
NU
NUD
NUF

FPG
FRS
GF
GN
LDL
N2N
N2N
N2N
N?.N
N3N
NA
NA
ND
ND
NEG
NEG
NFG
NEM
NEM
NEM
N£M
NF
NFY
NG
NHE
NHE
NNA
NND
NNP
NNT
NP
NP
NPR
NPR
NPR
NPR
NT
NT
NU
NUD
NUF

N.ALF

N,F,,,Fr
G, F
G,N
O.LDP
N,2N
N,^N
N,2N
N»2N
N,3N
N, A
N,A
N, D
N.D
N.GHM
N,GEM
N»G"TM
N.NEM
N.KTM
N.N~M
N,K C 4
N,F
N«F,,TER
N,G
N,3
N,3
N,NA
N,ND
N,NP
N,NT
N,P
N,P

N,T
N,T
N,N!i
N,NU,,OL
N,NU,,FF

AВS
ACT
ALF
cU.OA
INL.DA
INL.DE
INL,DA/DEI NG
INGiDA
ING.OE

NF...FFLDP
N2N
N2N.0AN2N f DA/Oû
N3N
NA
NA.DA
NO
NDtDA
GEM
GEM,DE
GEM.OA/DE
NEM

NF
NF..TFR
NG
N3
N3,0A
NNA
NND
NNP
NNT
NP
NP,DA

NT
NT.OA
NU
NU..DL

ABS
ACT
ALF
CHG
DEL
DIN
01N
OIN
DNG
ONG
DNG
DNG
ETA

144

4CM/VIII/I6

EUiPOL
PL.POT
N,R-S
N.cr^S
N.ABS.Pl
N,F,RI
N.G.RI-/WID-/PCSABS.RI
NF.RI
NG.RI

N,SCT
N.SCT.DA
N,?L
N,F.DS,,G
N,NU,DF
N,INL
N.NON
N.NON
N.NON
N.NON
N.G.OP

RCT
SCT,DAEL
NF,DE«.G
MU.DE
T NL
NON
NON,DANON,DE

N,TOT
N,THS

NG.DE
STF
TOT
THS

TOT
TSL

POL
POT
RÇM
RES
RES
RIA
RIF
RTG
RIR
SCT
SCT
SFL
SFG
SFN
SIN
SNE
SNE
SNE
SNE
SNG
STF
TOT
TSL

REM

POL
POT
RÇM

REM
RP
RP
RIA
RIF
RIG
RIR
SCT
SCTA
SEL
SFG
SFN
SIN
SNE
SNFA
SNEE
SNET
SNG

EUiPOL
PL.POT

N,R-S
N.cr^S
N.ABS.Pl
N,F,RI
N.G.RI-/WID-/PCSABS.RI
NF.RI
NG.RI

N,SCT
N.SCT.DA
N,?L
N,F.DS,,G
N,NU,DF
N,INL
N.NON
N.NON
N.NON
N.NON
N.G.OP

RCT
SCT,DAEL
NF,DE«.G
MU.DE
T NL
NON
NON,DANON,DE

N,TOT
N,THS

NG.DE
STF
TOT
THS

RP
RP
RIA
RIF
RIG
RIR
SCT
SCTA
SEL
SFG
SFN
SIN
SNE
SNFA
SNEE
SNET
SNG
TOT
TSL

29

4CM/VIII/I6
29

RES
RES
RIA
RIF
RTG
RIR
SCT
SCT
SFL
SFG
SFN
SIN
SNE
SNE
SNE
SNE
SNG
STF
TOT
TSL

145

Existing programs and plans for automated data processing at NDS

1.

The basic EXFOR program system is working. Compilation

format is similar to

but not identical with EXFOR format. The check program which checks NDS-madeentries and incoming exchange tapes will be expanded to include validity^checksof ISO-QUANT and cross-checks between ISO-QUANT, data headings, data units etc.
Retrieval is made by (sub)entry-numbers only; the (sub)entry-numbers required
are retrieved from Cindu. Energy-retrieval within a subentry will be added.
Requester's output format(s) may require further studies.
2.

A computation format is planned, so far restricted to data that are a function of
E only (total fission and other cross-sections eta, alphan u -bar). The

purpose of the computation format is twofold: automated data processing suchas plotting, and to give users a compact numerical table aside from the text
part of EXFOR. Only those EXFOR data will be converted to the computation
format that are requested in this format for a specific purpose, and nodata

are stored in this format. Conversion from EXFOR to the computation format
requires- unification of data units; the conversion factors
exist in the units-dictionary.
- unification of data representation such as conversion ofdata given as< 5 | E into 07— renormalization of different data sets to consistent standard
values. This will only be done at the request of the user.
It is envisaged to try to renormalize data automatically this requires that standard values, where applicable^areentered in EXFOR in retrievable form.

Automated renormalization requires that a separate file with up-to-datestandard cross-sections be held ; such a file will anyway be needed as a service tocustomers.
All data files held at NDS, including evaluated data, must be convertible to thecomputation format.

146

4CM/VIII/17

3.

Renuest-Log and Data-Distribution-Log will eventually be compared
automatically with new Limbo input and with incoming transmission tapes,
in order to check* whether a new EXFOR entry meets a request, in particulara standing request;* whether a corrected EXPOR entry must be sent to somebody who
received the oldversion of the entry.

1474CM/viIl/l8

CINM Publication Schedules

Attached are the detailed schedules for CUTM 73» main volume
and supplement, and outline schedules for CUTM 74. These were agreed
upon at a meeting on 19 Oct. 1973, Present were: Publication division - Mr. Metzendorf
Mr. Dietl
CCM - Dr. Frahner
NDS - Mrs. A t t r e e
Dr. Lemme1
Mr. Lammer

1484CM/viIl/l8

Detailed schedule for CINDA 73 main volume

1 May 1973

Deadline for last entries to reach CCDN.

21 May 1973

CINDA 73 master tape received by NDS from CCDN. All tables
needed for Appendices (in particular lab-and ref-codes)
received by NDS from CCDN.

6 June 1973

Processing at NDS completed and tapes shipped to ZMD.

26 June 1973

Linotron- processing completed and film shipped to NDS.

1 August 1973

Printing and binding completed. Ready for distribution.

Note:

It was agreed that Mr. Metzendorf's division would be kept informed ofthe progress with the new CUT DA computer systems, in the hope that theabove schedule could be brought forward, even by a few days. Printing
during the summer months is a problem.

Detailed schedule for C1TTDA 73 Supplement

1 Oct. 1973

Deadline for last entries to reach CCDN.

29 Oct. 1973

CINDA 73 Supplement master tape received by NDS from CCDN.
All tables needed for Appendices received by NDS from CCDN.

12 Nov 1973

Processing at NDS completed and tapes shipped to ZMD.

23 Nov. 1973

Linotron processing completed and film shipped to NT)S.

1 Jan. 1974

Printing and binding completed. Ready for distribution.

Publication schedule for CINDA 74.

CINDA 74 main volume.

CINDA 74 Supplement

CCDN deadline

1 March 1974

Publication date

1 June 1974

CCDN deadline

1 Sept. I974

Publication date1 Dec. 1974149

4CM/VlIl/l9

LIST OP ACTIONS

ActionNumberDefining
Paragraph in
AOM/fflll/MIN

1.

Responsible
Centre/person

all Centres

Action pertaining toprovide statistics on compilation
for letter to Kolstad.

2.

10

NDS

3.

13

all Centres

prepare recommendation to editors ofjournals about types of information
which the Centres need to have included
in journal articles.

all Centres

prepare for the next meeting anagreement on common quantities andformats for the statistical reportsof all centres.
acknowledge receipt of all tran-tapes
promptly.

inform INDC of problems of obtaining
data from authors.

5.

21

all Centres

6.

24

NNCSC

7.

27

all Centres

8.

34

NNCSC

submit condensed versions ofDictionaires 18,19,21-23.

9.

39

NNCSC

circulate publication schedule forBNL-325.

10.

41

NNCSC

prepare LEXPOR entry on types ofgamma spectra data to be compiled;introduce new quantity codes ifnecessary.

11.

41

NNCSC

investigate priorities for compilationof gamma spectra data.

12.

41

NNCSC

investigate coordination of compilation
effort with other groups who compile
gamma spectra data.

13.

45

all Centres

improve the completeness of CINDA.

14.

48

Pearlstein

explore increase of U.S. C I N M effort
with appropriate authorities.

15.

51

Tubbs

send CINDA-input check program to NDS.

revise EXFOR Manual page IX.2
investigate possiblity of retransmitting
only the BIB section of a subentry.

150

ActionNumberDefining
Paragraph inA/

Responsible
Centre/Person

Action pertaining to

16.

53

COM

distribute a detailed proposal onmachine addition of data index lines
to CINDA blocks.

17.

62

NDS

discuss with INDC proposed annual
publication of WRENDA.

18.

64

CCDN

evaluate the possibility of allowing
more than one comment line per data-index
line in CINDA.

19.

68

NDS

refer the topic of Common Evaluation
Procedure to HTDC.

20.

69

all Centres

21.

79

Schmidt

inquire deadlines for next CODATA
Compendium.

22.

79

all Centres

contribute to the CODATA Compendium
according to guidelines obtained by
Schmidt.

23.

82

NDS

recirculate List of Actions from thisMeeting two months prior to next
meeting.

Defining
Paragraph in
4CM/Vlll/X4

send existing supplementary informationfor evaluated data files such as 2200m/sec
values, 20° Maxwellian average crosssections, etc.

24.

4CM/VIIl/X4f
Part I

NNCSC

MAke the numerous revisions of the
EXPOR manual agreed at the 8th 4C Meeting.

25-

4CM/Vlll/X4,
Part II

NNCSC

Make the numerous revisions of the
LEXPOR manual agreed at the 8th 4C
Meeting.

26.

4CM/Vlll/X4,
Part IIINDS

Make the dictionary revisions agreed at
the 8th 4C Meeting.

Defining
Paragraph in
4CM/Vlll/X4

27.

15

CCDN

submit LEXPOR entry on the RAW modifier.

28.

18

NDS

submit LEXPOR entry on experimental
methods for fission-product yields.

29.

19

NNCSC

submit LEXPOR entry on all Polarization
and Asymmetry quantity-codes.

30.

20

NNCSC

submit LEXPOR entry about Multilevel
Resonance Parameters.

151 A.

4CM/VlIl/l9

ActionNumberDefining
Paragraph in
4CM/VIIl/X4

Responsible
Centre/Person

31.

21

NNCSC

submit LEXPOR entry listing all
strictly monoisotopic and nearlymonoisotopic elements.

32.

22

mcsc

submit LEXFOR entry on independent
variable s•

33-

38B

CCDN

revise the LEXPOR entry on twodimensional tables.

34.

38C

NDS

submit LEXPOR revision to include
warning about references which contain superseded data.

35-

48-52

ENCSC

submit final shortened versions ofDictionaries 18-19, 21-23

36.

63

all Centerstransmit in EXPOR the importantfission data listed in Memo 4C—3/48.

37.

65

TOS

Action pertaining tosubmit shortened versions of the
EXPOR/LEXPOR manuals.

151 B.

4CM/VITT/20
LIST OP RECOMMENDATIONS

Rec.
NumberDefining
Paragraph in

ACM/Vlll/MIN

Recommendation
to

Recommendation

1.

10

all Centres

tabulate statistics for data requests
by Z-A-Quantity

2.

17

all Centres

communicate promptly information
which might affect operations orscheduling of work at other Centres

25

all Centres

comply as soon as possible with new
EXPOR correction procedures involving
Column 80 of certain records.

A.

29

NDS

produce itemized chart of errors
found on EXPOR transmission tapes.

5.

30

CJD

use correct system identifiers.

6.

32

all Centres

continue development of EXPOR checking
programs

7.

39

CCDN, NDS, CJD

transmit heavy nuclei data to NNCSC
immediately; needed for BNL-325.

8.

40

all Centres

begin compilation of fission-yield
data

9.

66

all Centres

prepare indexes of evaluated data
exclusively from information releasedby the originating centre

D.

81

CCDN, NDS, CJD

request specific E N D P / B data sets
simultaneously from NNCSC and USAEC
when unreleased data has been used asa standard reference cross section

11.

82

all Centres

circulate new proposals at least 2
months prior to next meeting152