INDC(NDS)-58 Rev.

International Atomic Energy Agency

Distribution:
G + Special

I N

DC

INTERNATIONAL

NUCLEARDATA

COMMITTEEREPORT OH THE TENTH FOUR-CENTRE MEETINGSACLAY/PARIS. 6-10 May 1974

Supersedes t h e advance copieso f INDC(NDS)-58/G d i s t r i b u t e d
i n September 1974

December 1974

IAEA NUCLEAR DATA SECTION, KARNTNER

RING 11. A-1010 VIENNAInternational Atomic Energy Agency

mDCfEDS)-58 Rev.
Distribution:
G + Special

INTERNATIONAL

NUCLEARDATA

COMMITTEEREPORT OH THE TENTH FOUR-CENTRE MEETINGSACLAY/PARIS. 6 - 1 0 May 1 9 7 4

December 1974

IAEA NUCLEAR DATA SECTION, KARNTNER RING 11. A-1010 VIENNAREPORT ON THE
TENTH FOUR-CENTRES MEETING
6-lOth May, 1971* - Paris

AgendaI,

Organisation and Announcements.

II.

Centres' Activities.

Ill,

Policies and Co-ordination of Four-Centre
Activities.

5

IV.

EXFOR in Detail.

9

V.

CINDA in Detail.

13

VI.

WRENDA

20

VII.

Review of Other Meetings.

21

VIII.

Other Business.

22

IX.

Conclusions.

22

-

11

-

List of Appendices
Page
A

Agenda of the Tenth Four-Centres Meeting.

23

B

NNCSC Explanation Concerning Letter to Editors.

2h

C

NNCSC Progress Report and Request Statistics.

25

D

CCDN Progress Report and Request Statistics.

27

E

NDS Progress Report and Request Statistics.

H2

F

CJD Progress Report and Request Statistics.

51

G

List Showing Correspondence between EXFOR
1, 2, 3, 4000 and 5, 6, 7, 8000 Series.

53

H

New LEXFOR Entry on References.

54

I

New LEXFOR Entry on Modifiers.

55

J

Proposal for Retransmission of Subentries
ich have been Combined into-one Subentry.

56

K

Storage and Retrieval of Neutron-Capture
Gamma Ray Spectra, M.R. Bhat.

57

L

CINDA : Points to be settled between NDS and CCDN.

70

M

Report on WRENDA 74.

75

N

List of Actions from the Tenth Four-Centre
Meeting.

90

- 1 I.

Organisation and Announcements
1»

Introductory remarks

F. Frohner opened the meeting with words of welcome on
behalf of the Nuclear Energy Agency of the OECD.
2.

Election of Chairman and Secretary

L. Lesca (CCDN) was elected as Chairman of the meeting,and A. Schofield (CCDN) agreed to act as secretary. The otherparticipants were S. Pearlstein and Mrs V. May from NNCSC,
F» Frohner (CCDN), J.J. Schmidt, H. Lemmel and M. Vlassov from
NDS, and V. Manokhin (CJD).
A number of scientists from CCDN participated during
various sessions : K. Okamoto, H. Potters, N. Tubbs andC, Rickeby.
3.

Discussion and adoption of Agenda

After a short discussion of the Agenda (cf. Table ofContents), the Programme attached as Appendix A was adopted.
k.

Review of actions from the Ninth Four-Centre Meeting

The participants reviewed the actions from the previous
meeting on the basis of the report (INDC(NDS)-5i*G) on the
Moscow 4-C meeting and on Memo. iC-3/93» The status of theactions which are not completed is as follows :1973 - Action No.

3
6
8
26
27
28

Cancelled.
Not done - see Appendix B.
"pelinquency list" : continuing
as recommendation to all Centres.
Done - see Appendix G.
Done - see CJD report, Appendix F.
See Minutes + 197*1 actions.

- 2 1973 - Action No. 29
30
31
32
33
35
10
*»3

M

See Minutes + 197*4 actions.
"
"
tl
"

it
"

fl

ti

n

M

11

tt

+ 197*» actions.

n
It
"
"
+ 1974 actions.
Partially fulfilled - CJD agreed tosend out Pu-239 evaluation onmagnetic tape as soon as possible,

Impossible to satisfy.

The continuing actions are transferred to the new listof actions, cf. Appendix

II.

Centres' Activities
1.

Progress reports

Progress reports were presented by the Heads of theCentres (Progress Reports for NNCSC, CCDN, NDS, and CJD
including request statistics are attached as Appendices C,
D, E, and F ) . The following points were raised in theensuing discussion :PEARLSTEIN brought up the problem of the continuing
backlog of area 2 data to be transmitted in EXFOR, He stressed
the awkward situation.of NNCSC in regard to customers requestingthese data in EXFOR format.

LEMMEL mentioned that the important U-235 and Pu-239
data available end of 1971, listed in 4C-3M8 (January, 1972),
and which were agreed in the 1972 and 1973 Four-Centre
meetings to be compiled with top priority, were still incompletein EXFOR. Over 60$ of the data sets listed were still
missing, mostly from area 2.

- 3-

SCHMIDT urged all centres to stick to the agreement togive priority in exchanging the data to those isotopes, quantities
arid references which appear, from the statistics, the mostfrequently requested, i.e. essentially those of technologicalimportance (fissile, fertile, structural materials, etc.).
FROEHNER answered that the continuing difficulties with
the EXFOR backlog at the CCDN are due to unforeseen staff
changes and difficulties with preparing the centre's programsfor the new computer to be installed this year. Under thecircumstances speedy availability of new data in at least one
machine-searchable file within the ^-centre network had to begiven priority over availability in EXFOR, as explained in
the CCDN progress report (Appendix D ) . Therefore data plus
EXFOR comments were entered as quickly as possible into the
NEUDADA file in order to keep at least this file complete andup-to-date. In fact, with a single exception, every one of
the U-235 and Pu-239 data sets from area 2 listed by LEMMEL
in 1IC-3M8 were available in NEUDADA format already by thetime the memo was written, as can be seen from newsletter
CCDN-NW/13 (February, 1972). The format problem admittedly
remains, although it should be realised that only the numeric
data are affected (NEUDADA comments and EXFOR BIB sections
being practically identical) and that the computation-oriented
NEUDADA format is for many purposes more convenient than thecompilation-oriented EXFOR.
Nevertheless, the CCDN has been trying hard to honour
its commitments. The problem of the time delay between filingnew data in NEUDADA format and transmittal in EXFOR will besolved hopefully before 1975 by the "mixed coding" procedureby which incoming data will be converted simultaneously to
NEUDADA and EXFOR. In fact, two EXFOR tapes containing asizable fraction of the backlog are nearly ready for despatch,
and work on two more is in progress.

It was agreed that lists of compiled data available ateach Centre and not transmitted yet in EXFOR would be sent to
the other Centres.
(Action1)

- l\ -

This should include in particular special-purpose compilations(e.g. Crouch's compilation of fission yields).
(Action 2)
CJD were commended for their EXFOR performance since
the last ^-Centre meeting.
The question of the translation of nuclear data
documents by IAEA was raised. IAEA used to provide English
translations of Jaderno-Fizicheskie Issledovanija, of Jadernye
Konstanty, and occasionally of other USSR papers and documents
dealing with nuclear data. Since IAEA can provide this service
only for the most urgent cases, it was suggested that therelevant USSR authorities consider attaching at least English
language abstracts and keywords to all papers in the abovementioned documents, in particular in conference proceedings.
As far as possible, the USSR should provide complete English
translations of important documents, which could, if necessary,be printed and distributed by IAEA. It was therefore agreed
by the participants that :a)the NDS would bring to the attention of the INDC the
problem of translating voluminous nuclear data
documents such as the CJD Bulletin (Jadernye Konstanty)
into English;(Action 3)b)

the CJD would investigate the possibility ofincluding abstracts in English to articles in Jadernye
Konstanty or to send them to the IAEA for translation,and provide number links between the abstracts and theBulletin articles. Inclusion of English keywords
using the Oak Ridge Nuclear Data Project system would
also be considered.
(Action 4)

2.

Common statistical presentation

The statistics showing the performance of the four
centres are attached as parts of the progress reports(Appendices C to F ) .

- 53.

Future plans

The main future developments considered were theimpending transfer bf North American CINDA operations fromTIC Oak Ridge to NNCSC and the development with respect tonon-neutron nuclear data. Both points were discussed indetail under the appropriate agenda items.
III.

Policies and Co-ordination of Four-Centre Activities
1.

Non-neutron nuclear data

SCHMIDT summed up provisional recommendations formulated
at the IAEA Consultants' Meeting on Charged-particle andPhotonuclear Reaction Data, and the IAEA Specialists' Meetingon Nuclear Level and Decay Data for Applications. A coherent
international effort in the compilation and evaluation of suchdata is planned. Dissemination of the content of files resulting
from this effort might be most conveniently achieved throughwell-established institutions such as the neutron data centres
and other nuclear centres. In view of possible future contacts
with compilation groups working in the fields of chargedparticle data, photonuclear data and nuclear structure anddecay data, the neutron data centres should keep abreast of
the development of new formats and work on the extension ofexisting formats to non-neutron nuclear "data (e.g. ENDF/B,WRZNDA, EXFOR).
The participants agreed that the neutron data centres
are interested in participating in meetings concerning theestablishment of files of compiled and evaluated non-neutron
nuclear data and are willing to act as distribution centres
for complete files. This will centralize the availabilityof both neutron and non-neutron nuclear data as a benefit to users.
These services however, should be provided only for wholefiles of compiled and evaluated data that are suitable forwide distribution, whereas special data questions should still
be forwarded to the appropriate groups of experts preparing
such compilations.

- 6An action was put on all centres to initiate contact
with groups compiling non-neutron nuclear data in order toinvestigate the possibilities of using existing formats fortheir compilations.
(Action 5)
2.

EXFQR

MANOKHIN stated that CJD preferred receiving data in
EXFOR. CJD is able to list NEUDADA tapes, but has no index
to these tapes, and no intention of developing NEUDADA retrieval
programs. This inability to retrieve from their collection of
NEUDADA tapes is in fact the reason why CJD has repeatedly
requested data from the CCDN which had been sent to Obninsk
before on NEUDADA tapes. MANOKHIN asked that in such cases
the data be sent again rather than a reply that they had been
sent before. FROEHNER agreed to do this until the data areentered into the EXFOR exchange.
(Action 6)
An action was put on NNCSC to distribute to othercentres lists of data sets required for the new edition of
BNL-325 Vol. II .
(Action 7)
The other Centres should then include the abovementioned data sets in EXFOR without delay.
(Action 8)
3.

Transmission of old NNCSC data

NNCSC was asked to send the balance of the old SCISRS
data (39 tapes in EXFOR-like format) to the other Centres. It
was stated that most of the data sets are pre-1969. Some of
the newer ones are already entered in the 1 to 4 series. Thus
CCDN should have most of these data in the NEUDADA file. In
addition NNCSC should send an index for these tapes so thatthe other centres can check what they have already in theirfiles (see also Appendix G ) .
(Action 9)

- 74,

Correspondence with CJDMANOKHIN asked if CCDN could split up long NEUDADA tapes
into shorten files by end-of-file tags. This would make iteasier to deal with reading mistakes encountered fairly often
at CJD. It was agreed that CCDN would comply with this request.
(Action 10)
Requests from KONSHIN (Minsk) for experimental data
not available at CJD should be answered by the other centresa» follows :tapes to be sent to CJD, for conversion to punchedpaper tape as used at Minsk;
listings to be sent directly to Minsk.
(Action 11)
5»

Evaluated data

Concerning availability of ENDF data, PEARLSTEIN
said that the ENDP standards data have already been released
and the release of other data such as the ENDF dosimetry file
was under review. No assurances could be made at this time.
MANOKHIN reported on Soviet evaluation activities andmentioned work on :
D,

0,

Na,

Pe,

U-235,

U-238,

Pu-239,Am (oy,of),Cm (o ,af)

and other Pu isotopes. The general policy in the Soviet Union
ia to use unadjusted microscopic cross sections. Only thegroup constants are adjusted on the basis of clean integral
experiments*
6.

Heavy-ion data

PEARLSTEIN advocated definite proposals for iso-quantextensions to deal with heavy incoming particles. It was

- 8 stressed that this does not necessarily mean that the fourCentres should also compile these data.
MANOKHIN pointed out that the use of an additional
field for the incoming particles in the iso-quant as in
WRENDA would help to keep dictionaries reasonably short.
No definite conclusions were reached on this point,

7«

Integral data

NNCSC will publish CSEWG benchmark results as a BNL
report with an ENDF number. Shielding benchmarks are also
compiled, but only as reports. Since the shielding benchmarks
generally are described in full laboratory reports, only anindex to those reports will be published. PEARLSTEIN addedthat those data are usually obtained on a bilateral basis,and the need for the centres to computerize them would require
review.
8.

INIS and similar developments

N. TUBBS was asked to communicate any information hehas about compatibility between CINDA and the Nuclear Data
Project reference file, and about his INIS/CINDA comparison
prepared for the Varna IAEA Symposium on Information Systems.
(Action 12)
9.

CINDA

Although it was realized that CINDA operations are notin practice as symmetrical with respect to all four Centres as
EXPOR is, it was agreed that after the transfer of U.S. CINDA
operations from TIC Oak Ridge to NNCSC, CINDA is to beconsidered a regular ^-Centre matter.
Consequently similar procedures should be adopted for
CINDA and EXFOR with respect to changes such as updating ofdictionaries or input specifications. In particular non-trivial

- 9 changes, e.g. changes which affect other centres' programs,
should not be made without ^-Centre agreement. Furthermore,such changes should be documented with the least possible delayin the form of new manual pages.

IV.

EXFOR in detail
1.

Implementation of action3 initiated at the 9th
U-Centre Meetinga)

LEMMEL'S proposal for LEXFOR on references was
discussed, and a final formulation agreed upon(cf. Appendix H ) .

b)

Revisions and inclusion of items in LEXFOR and EXFOR
Manual according to specifications in Memo. ^C-3/97
were discussed.

Entries on Wave Length, Percent, Fission Fragment
Energy Spectra were revised. An action was put on NNCSC to
distribute updated LEXFOR pages for these items and to revise
also the entry on Polarization,(Action 13)
whereas NDS should prepare a LEXFOR entry on the Experimental
Determination of Fission Product Yields.
(Action 111)
Further discussion of entries for the RAW, REL, FCT
modifiers led to a final formulation based on a LEXFOR entry
proposed by POTTERS (Appendix I).
It was decided to abolish the modifier PAD.
The action put on NNCSC to prepare an entry on
Independent Variables was considered obsolete in view of thefollowing discussion on multidimensional tables.

- 10 c)Multidimensional Tables

EXFOR Manual revisions concerning more convenient rules
for table coding were discussed. A review was made of therevised manual pages drafted by PROEHNER on the basis of anumber of 4c memos dealing with this problem (4C-1/38, -2/41,-2/42, -1/39, -3/88, -4/23, -2/46 and -3/94) and a final
version was approved for inclusion in the Manual.
(Action 15)
2,

Further specifications concerning LEXFOR and EXFOR
ManualOKAMOTO was asked to formulate specifications concerning
standards for Fission Yields and give an example of coding ofdelayed-neutron precursor data.
(Action 16)
NNCSC was reminded to prepare the long overdue LEXFOR
entry on Multilevel Resonance Parameters.
(Action 17)
New procedures for updating the EXFOR Manual were
defined. Updated pages should carry the date of update.
Essential new pages should be distributed as soon as possible.
Resulting changes to other parts of the Manual may be transmitted later on. Moreover, a complete Manual should be senton request to each Centre.
3.

Scheme for retransmitting groups of subentries

V. MAY proposed a scheme for retransmitting groups ofsubentries as one single subentry. This feature would be
especially useful for handling groups of subentries to begrouped into one multidimensional table. The proposal was
adopted and formulated as an addition to page IX.3 of the
EXFOR Manual (cf. Appendix J ) .

- 11 k.

Implementation of new EXFOR features

Feature 1.

Multidimensional tables with all independent
variables in data-section columns ("Vienna-Moscow
compromise").

Feature 2.

Multiple Iso-quants with pointers.

Feature 3.

Two-dimensional tables with one of the two
independent variables given in COMMON> useof pointers ("Pearlstein proposal").

Feature *\.

Variable Z and/or A.

Feature 5.

Extension to more than 10 columns.

LEMMEL said that NDS was ready to implement Features
1 to 5 as soon as it could use POTTERS' edition program.
FOTTERS stated that this program is available.

V. MAY said that NNCSC could implement immediately
Features 1 and 5, and Feature 2 only for resonance parameters.
Feature 3 could be implemented after some time. However nodecision on implementation of Feature *J could be taken or of
Feature 2 for cases other than resonance parameters.
MANOKHIN said CJD had to rewrite programs, but would
be willing to accept all EXFOR features, provided the data
sets coded according to the new rules were not too large tobe dealt with on an ad hoc basis.
POTTERS said that some reprogramming was necessary at
CCDN, but that Features 1 to 3 could be handled at present,
and Feature 5 in the near future.
It was finally agreed that Features 1 and 5, and Feature 2
for resonance parameters only, were acceptable for exchange
between all centres,

- 12 -

V. MAY was asked to write up an implementation scheme
for inclusion in the EXFOR Manual, and update the Manual.
(Action 18).
5.
Completeness of EXFOR versus CINDA should be checked
at all centres for important reactor material iso-quants. Gaps
in EXFOR and CINDA should be filled with top priority.
(Action 19).
6.

Extensions of EXFORa) Capture gamma-ray spectra

A proposal for storage and retrieval of neutron capture
gamma-ray spectra by M.R. Bhat (Appendix K) was discussed. It
was decided that this document would be used as a basis for
proposing an extension of EXFOR. NNCSC is at present incommunication with specialists on the subject, and will establish
a list of EXFOR quantities corresponding to the quantities
mentioned in Bhat's proposal, together with dictionary 14
additions, and data headings, -The other centres were then asked
to circulate Bhatfs proposal to the specialists of theirrespective areas and to deal with the formal problems raised by
the resulting suggestions. Examples of coding capture gammaray spectra shall be given using the possibilities of the
2-dimensional table layout.
(Action 20)b) Simplified EXFORCJD expressed interest in a remark by FROEHNER thatsome of the difficulties in using EXFOR as a computation
format could be eliminated by adopting a unique system ofunits (e.g. eV for all energies, b for all cross sections, etc.)
and perhaps a rigid table structure in all cases where thiscan be easily done, similar to the approach in NEUDADA.
Other centres disagreed, however.

- 13 c) Procedure to be followed by Centres for entire
compilations
In order to distribute the workload in cases wherea centre receives a big compilation with data from otherservice areas, it should split up this compilation according
to service areas and distribute the parts to the respective
centres for EXFOR coding.

If automatic conversion to EXFOR

is. possible, however, then the receiving centre should converttand involve the other centres only in checking the converted
data belonging to their respective service areas.

V.

CINDA in Detail
SCHMIDT opened the CINDA discussion by commending

N. TUBBS and his co-workers at CCDN and TIC for their successful work to develop and implement the new CINDA direct-accessstorage and retrieval system.

The improvements in operating

efficiency and particularly in speed and quality of retrievals
over the old system was clearly established.

The fact thatafter the first year of experience with the new programsystem a number of technical points would have to be discussed
should not obscure the basic success of the project.
A list of points still to be settled, and suggestions
fcr their solution, was presented by TUBBS (Appendix L ) .

1*

Update and feedback procedurea)Operation codes 'A* and 'B*
The present CINDA system is designed to prevent any

blocking of entries which is not explicitly indicated by thecompiler.

If a new block of n entries, say, is to be enteredinto the file the compiler must submit the corresponding n
cards in sequence, each one containing operation code 'A' andalso the number 'n' of entries in the block.
then automatically assigned to this block.

A block number isIf, on the other

hand, an entry is to be added to an already existing block,the compiler must use operation code *B' and give the blocknumber on the input card. This implies that such an addition
can not be made before the block number exists in the file and,moreover, before the compiler knows it.
LEMMEL said it was inconvenient for NDS to be obliged
to submit cards for 'A' operations in sequence, or to wait
until a 'B' operation could be made once an 'Af operation had
created a new block in the file. Relying on the fact that thepresent CINDA system, as an exception for areas 3 and 4, allows
for entering 'A' type records with block numbers '^72', '^73',
etc. for references published in 1972, 1973, etc. he proposed
a redefinition of the 'Bf operation. Instead of the meaning"include this record in block specified by Z, A, Q, Lab,
Block No." 'B' should mean "include this record in blockspecified by Z, A, Q, Lab, Block No. if found, otherwise enteras 'A'." This would enable NDS to submit all new entries with
'B' and to rely essentially on Z, A, Q, Lab, Year as an
automatic blocking criterion.
It was pointed out that the implied programming changes
would require an unreasonable effort on the part of the CCDN as
compared to the effort necessary at NDS to organize their workso that blocked records are submitted in sequence. What ismore, one would get an automatic blocking procedure which isprecisely what the present CINDA system was designed to avoid.
As V. MAY remarked there are instances, especially in areas
1 and 2, w-here the same Z, A, Q, Lab, Year should occur indifferent blocks.
LEMMEL then asked if CCDN could implement an automaticchanging of *A' to 'B' for matching records with the same Z,
A, Q, Lab, Year just for areas 3 and 4. TUBBS conceded that
CCDN could in fact overrule the rejection of successive 'A'
entries carrying the same Z, A, Q, Lab, with a separate program
which would automatically change 'A' to 'B' in such cases, but
once again at the risk of introducing erroneous information
into the file. CCDN would only do this under the responsibilityof NDS.

- 15 -

After lengthy discussions the following conclusions
were reached :NDS will take care that within one batch of newrecords those belonging to the same block aregrouped together in the correct sequence.
CCDN will continue to send feedback lists as soon
as possible after each update so as to enable NDS
to make subsequent additions to new blocks using
the assigned block numbers.
NDS assumes responsibility for the blocking of areas
3 and 4 'A' records with the same Z, A, Q, Lab, Yearappearing in different batches. CCDN will implement
this blocking by automatically changing 'A' to 'B1
for the entries from the second batch. NDS claim thatno errors will be introduced and many unnecessary
rejections will be avoided by this procedure.

FROEHNER warned that the last rule constitutes adangerous precedent. It means in effect an overriding of
input checks just because certain compilers find them inconvenientand claim that they do not make mistakes anyway. NNCSG also
objected.
b)

Other input checks

LEMMEL pointed out that the checking criteria used in
the CCDN appear to be too stringent and result in overabundant rejection of input records. The matter was discussed
in detail by LEMMEL, V. MAY and TUBBS. The outcome of this
discussion was a new list of checking criteria.

- 16 c)Frequency of updates
I t was once more reminded and strongly recommended by

TUBES that updates be sent continuously throughout the year to
CCDN.

One of the main features

allow frequentof the new CINDA system i s to

updates with rapid correction and r e - i n s e r t i o n of

rejected information.

This feature should be exploited inorder to avoid the usual last-minute flood of e n t r i e s to beprocessed at the CCDN.
2.

Improvement inlistingsa) Feedback Listings
LBMMEL criticized that NDS had, for 765O entries submitted, toscan about 1500 pages of feedback listing to find about 100 mistakes forwhich NDS was responsible.

During the past year LEMMEL had submitted

various suggestions to improve the feedback mechanism.

CCDN confirmedthat some of his suggestions were impracticable because of the limitationsof the present CCDN computer and programming manpower.
Changes to warning and e r r o r messages on the other
hand are f e a s i b l e .

After some discussion a workable solution

was found by omitting some, and revising other, warning ande r r o r messages.
(Action 21)b) Other listings
TUBBS explained that the internal representation ofenergies (energy codes) cannot be modified as LEMMEL wishes
without heavy reprogramming effort.

Since these changes

concern only rather rare and exotic cases such as double
spectra which can easily be dealt with by making two entries
CCDN will not change the energy codes at present.
Quantity sort changes requested by NDS will be madeon the book tape, but not in the file.
listings will remain ordered as before.

Consequently, retrieve

- 17 -

An action was put on NDS to prepare a proposal on
a new quantity sorting order.
(Action 22)
3.

CINDA as a complete International Data Index

CINDA performs this function both through the use offlag '+' indicating that data are available at least at one
centre, and by explicit reference to a data file through theinclusion of a data index line.
PEARLSTEIN was in favour of excluding index lines
referring to EXPOR on the grounds that they would notaccurately reflect the present status of the numeric files,
and would contribute to increasing the size of the CINDA
Book.
LEMMEL and FROEHNER reminded the participants thatthe appearance of index lines in CINDA is intended to replace
the old newsletters such as CINDU, CCDN-NW/13, -NW/14, etc.
TUBBS pointed out that the cleaning up of CINDA withregard to the •+» flags would take at least one year given
the present status of CINDA manpower at CCDN. It would therefore be useful to keep index lines in the file. It would
always be possible to exclude index lines from the Book.
It was finally agreed that Centres would continue toinclude data flags and index lines in CINDA as before until
a final decision is taken on the proposal to be submitted by
NNCSC.
(Action 23)d,

CINDA Book

It was agreed that the four Centres are invited tosend suggestions for a new introduction to CINDA's next
supplement to LEMMEL.
(Action 24).

- 18 LEMMEL pointed out that the text pages consist of twoparts : a brief introduction for the beginning of the bookwith just enough detail to enable a cursory user to understandthe entries, and an Annex giving more details. It was agreed
that this structure should be kept.
It was recognised that criteria for the reduction of
the size of blocks of entries appearing in the CINDA publication
will have to be defined. The consensus was that no valid
entries should be deleted in the file but that the "no book"flag should be used more extensively. For CINDA75> all centres
should remove "noise" from the file using the means currently
available :making frequent use of the "no book flag"using the special compiler symbol for excluding
certain (e.g. merely "cosmetic") revisions fromthe supplements
searching for duplications and deleting them.
Any further suggestions should be sent to TUBBS.
(Action 25).
5.

CINDA Manual

The present status of CINDA rules is given in the1972 "Temporary Reader's Manual" and complementary information
can be found in the 1968 Reader's Manual and also in an NDS
internal manual prepared by LEMMEL. It was agreed that the
responsibility of preparing and updating the CINDA Manual
remains with NDCC. It was recommended that TUBBS make acomprehensive write-up of the CINDA rules, by the end of
August, 1974.
(Action 26).
It was agreed that CCDN supply NNCSC with all necessary
documentation giving the present rules compatible with the
CINDA programs, including the results of decisions taken at
this meeting.
(Action 27).

- 19 6.

CINDA area coverage
The present method of coverage was discussed.

It wasagreed to continue with the present system of assigningjournals and report series to specific CINDA readers.
7.

Dictionaries
Concerning the relations between EXPOR and CINDA

dictionaries, the following was agreed:
1)

EXFOR and CINDA dictionaries for lab-codes and ref-codes(journals, reports, conferences, books) should be identical,
except when restrictions in CINDA field lengths make this
impossible.

The so-called "EXPOR dictionaries" for thelab. and ref. codes are therefore joint CINDA-EXFOR
dictionaries and binding for both systems.

However, thisstatement does not affect any extra checks which may be
performed in CINDA (e.g., lists of report codes for theses
and conferences).
2)

NDS volunteered to convert in CINDA the few remaining
conference codes which are still different from the
EXFOR codes.

3)

The agreed rules for updating the dictionaries as laid
down in the EXFOR Protocol and in the EXFOR Manual will
also be applied to CINDA.

H)

It is the responsibility of NDS to ensure that the EXFOR
dictionaries are self-consistent and free of errors.
CCDN should check that their internal dictionaries agreewith EXFOR.

5)

NNCSC volunteered to carry out a checking of thecorrespondence between EXFOR and CINDA lab. and ref.
codes.
(Action 28).
The effect of changes in laboratory names(e.g., .GA—>GGA-*GRT etc.) on existing CINDA entries was
discussed but no procedure agreed on.

- 20 "
8.

Physical content of CINDAa) Ambiguities

VLASSOV pointed out some cases where misunderstanding
arises concerning the quantities actually measured. The
comments are often not explicit enough to clear up themisunderstanding.
OKAMOTO supported this statement, and subsequently
provided some examples :Scattering events, capture gamma counts or capture gamma
yield/thickness and transmission
data should be
explicitly mentioned as such in the comments, so as not to be
confused with scattering, capture and total cross sections.
b)Completeness

It was agreed that a detailed comparison with EXFOR
as discussed under IV.5 was an efficient way to improve CINDA
completeness.
(See Action 19).

VI.

WRENDA

Dunford's report on the present status of WRENDA is
attached as Appendix M. The stylistic guidelines proposedin this document (on the layout of comments, use of EXFOR-CINDA
lab. codes, representation of requestors' names and use of
blanks in energy fields) were accepted. The participants also
agreed that NDS should ask the INDC to support the recommendationsin Dunford's report, i.e.
that all requests from countries which do not review themfor two successive years should be considered as withdrawn,
that reviewers use the country retrievals for updates,

- 21 -

that the distinction between fulfilled and withdrawn
requests be dropped unless all countries specify which isthe case when they delete requests.
(Action 32)
Various suggestions concerning the layout of theWi^NDA report were made, for instance to give a less prominentplace to the request numbers. NDS agreed to consider thesesuggestions for future editions.
(Action 33)
NDS intends to distribute URENDA 7*4 to national
governments, atomic energy commissions, nuclear societies andsimilar bodies who are in a position to promote data activities ,and urge them to support work directed towards the fulfillmentof WRENDA requests.
There was a short discussion on whether country
retrievals for area 2 reviewers should be sent to CCDN as
listings or whether they should be produced with a special
program at Saclay. CCDN and NDS agreed to settle this matterariong themselves with a view of adopting the most convenient
procedure.
NDS confirmed that they are prepared to encode all
new requests or modifications to old requests so that there isno need for the other centres to submit input in card form.

VII.

Review of Other Meetings

The short review given by SCHMIDT on the IAEA Consultants'
Meeting on Charged-Particle and Photonuclear Reaction Data andon the IAEA Specialists' Meeting on Nuclear Level and Decay
Data for Applications was already mentioned under III.l .
VLASSOV gave an account of the March meeting of the
EURATOM Working Group for Reactor Dosimetry, mentioning new
methods of obtaining high-quality benchmark data for thresholdreactions in relatively clean fission neutron spectra. At
present discrepancies between such measurements and calculations

- 22 based on microscopic cross sections exist which could be due
either to subthreshold effects or - more likely - to residual
thermal neutrons and sample impurities.
LESCA reported on the Ispra meeting on Integral
Experimental Benchmarks for Shielding. He described plans toco-ordinate shielding work in the Euratom and NEA areas, ina first stage by the use of common computation codes andcommon sets of data for the interpretation of shielding
benchmark experiments on iron.

VIII.

Other Business
None.

IX.

Conclusions

Pearlstein on behalf of NNCSC offered to host the next
Pour-Centres Meeting at Brookhaven. After discussing possible
dates the participants agreed on the week after the planned 1975
Washington Conference on Neutron Cross Sections and Technology,
i.e. the week beginning 10th March, 1975.
It was also agreed that centres should provide display
boards (one each) explaining their services for exhibition at
the Washington Conference.
(Action- 23 -

AppendixA

PROGRAMTENTH

FOUR-CENTRES

6-10th May, 1971 -MEETING

Paris(OECD)

Monday, 6th May at OECD (New Building)
9h30 - 12h30- l8h3O

Agenda* Items I and II
Agenda Item VII (part.)

Tuesday, 7th May at OECD (New Building)
9h30 - 12h30
l4h30 - l8h00

Agenda Items m
and IV (part.)
Agenda Item V (part.)

Wednesday, 8th May at CCDN, Saclay
9h30 - 12h00
13h00 - 15h00
15h30 - 17hOO

Agenda Item IV (part.)
Lunch at Saclay
Agenda Item VII (part.)

Thursday, 9th May at OECD (New Building)
9h30 - 12h30
l4h3O - l8h00

Agenda Items V (part.) and VI.
Agenda Items VII (part.), IV (part.)
and V (part.)

Friday, 10th May at OECD (Chateau de la Muette)lOhOO - 12h30

For the agenda see page i.

Review of Recommendations and Actions.
Conclusion of Meeting.

Appendix

B- 24 -(Statement proposed by J. R. Stehn for possible NNCSC explanation for
not carrying out Action 6)

Action 6 arising from the Ninth Four-Centre Meeting (p. 97,
Appendix S, of INDC(NDS)-54/G) was not carried out by NNCSC. This
was to submit to NDS a revised recommendation to editors ol journals,
concerning presentation in their journals of information containing
neutron data.
The single letter of comment received from the centers (suggested
in Action 4) came from C. Dunford and expressed NDS opposition toadditional communication with journal editors. This letter states:"We are not in favor of sending a letter to journal editors.
We think that the general guidelines sent by IWCNSRD to many
journals and published in several are adequate to give referees
some basis for judging a submitted .paper. Moreover we are notin favor of using journal editors and referees as a means ofadvertising the Four Neutron Centers' services. However wewould be in favor of a direct mailing to experimentalists ofan expanded version of your proposal as suggested by CJD and
CCDN in discussions at the Four Center Meeting."
In view of the communications already received by journal editorson this subject, and the response made by seven journals (Appendix J ) ,NNCSC tends to agree with the other Centers that the proposed letter(Appendix I) should not be sent to journal editors. The press ofother business has kept us from considering the value of sending an
expanded version directly to experimentalists.

~ 25 -

Appendix

NNCSC PROGRESS REPORT. May 1973 - May 1974

1.

Data Libraries

W<! are now routinely servicing requests from the CSISRS Library. For the
one ye.ar period ending May 1974 we filled 169 requests from our experimental
library.
Since the last 4-Center meeting 8 EXFOR tapes (1016-1023) have beentransnitted.
In the last year NNCSC has taken responsibility for the USNDC Request
List, prepared the Library, completed the service programs, and sent amagnetic tape to IAEA to meet WRENDA obligation.
Announcement has been made that the U.S. CINDA responsibility will betransferred to NNCSC beginning 1 July 1974.
Related to the production of BNL-325 a library of over 150,000 experimental
resonance parameter values has been created.
The compiling of new data into CSISRS continues with the addition of 48
new entries. In addition a program of "completeness" checking with the objectiveof filling in "gaps" has commenced. This survey, in part, employs an interleaved
CINDA-CSISRS file and is being used to upgrade both libraries.
Intense activity in the last year has been directed to production anddistribution of a new version of the evaluated library (ENDF/B-IV). The NNCSC
effort: involved coordinating the ENDF/B-IV effort, hosting Task Forces on the"Big 3 + 2", 2200 M/Sec values, fission product nuclei, standards, and CSEWG
meetings dedicated to approving new evaluations. In addition NNCSC facilities
were called upon to process the new evaluations for ENDF/B-IV and to extend
to 20 MeV those ENDF-III materials being taken over directly into ENDF-IV.
The above involved extensive checking, plotting, assembling, and editing of files.
Our staff has completed new evaluations this past year for Sc, Mn, Cr, Ni,
Co, Eu isotopes, the resonance region of Pu-239(with J. R. Smith, ANC using
our facilities), and the unresolved regions of U-235 and Pu-239.
Standard ENDF programs have been upgraded to handle Version IV formats andhave been distributed. Distribution of ENDF/B-Version IV Library has begun(Tape:; 401-403). Additions to the ENDF/A Library this last year include thelibraries of DeviHer (France, C.E.N.), ENDL(U.S., LLL), and U.K.(England,UKNDL).

CAppendix
page 2C- 26 -

The above efforts were demanding of NNCSC computer facilities. A bfitch
processing capability hor. been implemented and allows for unattended evening
and weekend operation. We have sustained as high as 907. of capacity for twoweek intervals, evenings and weekends included.
2.

Publications

BNL-325, Neutron Cross Sections, Third Edition Volume I has been publishedand distributed. This first volume consists of recommended resonance parameters,
resonance properties, thermal cross sections, and bibliography.
A draft of a revision of ENDF-102, Formats and Procedures Manual for the
Evaluated Nuclear Data File, has been written and is being circulated forcomment. This has been distributed to those individuals with responsibility
for ENDF/B Version IV program development.
Production of updates for ENDF201 for ENDF/B-IV materials has
begun as these evaluations become finalized.
Library preparation and prototype copy generation has begun for BNL-325
Volume II production.

——^.ORIGINATOR

INDUSTRYNATIONAL
LABS

UNIVERSITIESGOVERNMENTAGENCIESOTHER

TOTALSTHIS YEARTOTALSLAST YEAR

EXPERIMENTAL DATA

26

73

33

13

24

169

138

EVALUATED DATA

88

103

43

31

17

232

162

REQUEST TYPE~~"^_CODES B DOCUMENTATION

- 27 -

AppendixD

CCDN Renort to 10th *IC-iMeeting
May, 1973 - May, 197;l

1.

Sta*T

The staff situation was relatively stable. During most of
the reoort period the centre worked with a full complementof 18 (8 physicists, 1 technical assistant, 2 programmers,^ computer and key-punch operators, 3 clerical staff.)
Claes Rickeby, the senior programmer, will leave at the endof May. Luigi Pellegrino from CPL (NEA Computer Program
Library, Ispra) will be his successor.
2.

CINDA

After file conversion and switch-over to the new CINDA
program system in March, 1973 many updates were made andtc.pes supplied to NDS for production of CINDA 73, the 1973
Supplement, and CINDA JH. Many errors and omissions present
in the old file were corrected, while entries distorted
during conversion were restored. The TIC-CCDN exchange
procedures were debugged, and work started on preparing the
CINDA system to run under DOS/VS and the PL/I compiler ofthe new IBM 370/125 computer that will be installed at the
CCDN in October. Index entries were prepared for all
experimental data, from areas 1 and 2 exchanged in EXFOR
format and for Benzi and KEDAK evaluated data. Withsimilar entries from areas 3 and 4 prepared by NDS a further
important step has thus been taken in the development of
CINDA as the international neutron data index. In April,197^ CINDA contained 109 000 entries referring to more than
22: 000 literature references.
3.

Experimental Data

Although the number of bibliographic references compiled by
CCDN per year shows a falling tendency the volume and thecomplexity of the data produced annually is growing. The
NEUDADA file contains more than 2 million data, lines now andgrows with a doubling time of about *» years. If only the
CCDN area is considered, the doubling time is even smaller,
namely about 3 years.
Although one physicist (A. Schofield) could be transferredfrom CINDA to EXFOR work after successful implementation of
the new CINDA programs, so that now t'wo physicists work fulltime on EXFOR, the EXFOR problem that existed at the CCDN
ore year ago could be solved only partially. Programs forthe conversion of incoming EXFOR types to NEUDADA format
now exist, and incoming data are entered quickly into thecentre's internal file, but the backlog of CCDN-compiled
data which should be converted from NEUDADA to EXFOR format
is still not reduced to a tolerable level.

Appendix
page 2D_ 28 -

In view of the present and future manpower situation and themagnitude of the job *) a choice had to be made between twoalternatives :either to improve the centre's EXFOR image at the priceof reducing the data collection and compilation effort
and/or leaving incoming EXFOR tapes unconverted, i.e.
unavailable to requesters;
or to give top priority to completeness and up-to-datenessof the centre's internal file and only second priority
to EXFOR tape preparation and NEUDADA-to-EXFOR conversionof the backlog.
The first alternative would have resulted in incompletenessof both the NEUDADA file and the EXFOR exchange, and thus
both the CCDN customers and the other centres would have been
unhappy. The second alternative was adopted because it
ensures at least completeness of the NEUDADA file, keeping
the CCDN customers happy and the other centres (hopefully)
not too unhaopy since they could obtain the data in computerized
form if not in EXFOR format.
Nevertheless, by mid-i^ay two tapes with 104 + 89 EXFOR works
will be despatched taking care of some 40$ of the present
backlog. Two more tapes with 99 + 45 works are in an advanced
stage of preoaration and should be ready a few weeks later.
4.

Evaluated Data

CCDN's activity in the field of evaluated neutron data remains
to be restricted to the collection and dissemination of suchdata. The main new acquisitions were a number of new andrevised files from the UKNDL and the Bologna library, thefission product library of Devillers et al., point crosssections calculated from resonance parameters in ENDF/B-III
format, and a first part of ENDF/B-IV.
FORTRAN-IV indexing
programs exist now for the three main libraries, and eachrequester of one of the libraries gets a listing of the index
along with the tapes.
5.

Request File

Co-operation with NDS concerning WRENDA was very smooth,country lists were distributed to reviewers and the modified
lists sent back to Vienna to be included in V'RENDA 74.

After reduction of the backlog the CCDN will havecontributed about 50% of all the EXFOR works and about
65% of all the data records to the EXFOR exchange.

- 29 -

6-.

Appendix
page 3D

Retrieval Statistics

Curing the 12-month period from 1st April, 1973 to 31st March,^ the CCDN received from outside customers :150 requests for experimental data,
1JIJI requests for evaluated data,
22 requests for bibliographic references,
23 requests for data handling codes,
27 requests for plots.
The number of requests for evaluated data is 27% and thatfor experimental data even J>9% higher than during thepreceding year.
The request statistics attached to this report show :that most of the requests are fulfilled,that the 150 requests for experimental datanecessitated 1,520 specific retrievals fromthe files,
that Japan was succeeded by France as thecountry from which most requests werereceived,that the centre's users are still mostly
evaluators, reactor physicists and measurers
in government laboratories, andthat the cross section types requested are still
mainly those with applications in fission
reactor and related technologies (fission of
U and Pu isotopes; total, scattering andabsorption cross sections of structural
materials such as C, 0, Cr, Fe, Ni, Zr, Nb
or absorbers such as Xe, Eu, H f ) .
Interest in absorption and capture cross sections continues
to be high. Demands for elastic and inelastic scattering,neutron emission and y production cross sections haveincreased significantly.
7.

Publications

During the period under review the CCDN published
CCDN Newsletter No.73-2 (October, 1973);
Neutron Nuclear Data Evaluation Newsletters
NNDEN/11 (July, 1973), NNDEN/12 (Nov., 1973)
and NNDEN/13 (March, 197*0.
CCDN staff presented papers at a number of meetings, forexample, at theSpecialists' Panel on keV Capture of the Structural
Materials Cr, Fe, Ni (Karlsruhe; May, 1973),
CODATA Symposium on Man-Machine Communication for
Scientific Data Handling (Freiburg i. Br.; July, 1973),
Specialists' Panel on Fission Product Nuclear Data
(Bologna; November, 1973).
A new edition of the threshold reaction compilation publishedin the past by Liskien and Paulsen was prepared directly fromthe NEUDADA file and will be distributed as document EANDC 95"U",REQUESTSTATISTICS

Table l a
1.4.1973 - 31.3.1974
Area 2

C5

CD CD
3
X

Number of Requests for Data
Country
OriginExperimental

Evaluated

1
1

1
2
5
1
36
21

Austria
Belgium
Denmark
FinlandFranceGermany
Italy
Japan
Netherlands
NorwaySpain
SwedenSwitzerland
United Kingdom

48
20
6
14
6

Bibliographic

1
4
1

6
6
2

1
3

5
6
14

1
4

1
1
9

22

7
1
1

10

7

Total

150

114

22

Total Previous

108

~90

13

Codes only,

7

2
1
4
8
12

4-Centres
Euratom
NEA-CPL(a)Codes,
Documents

2 3 <a)

Total

2
4
5
1
95
43
15
20
8
2
1
10
15
31
48
8
1
309

Total
Previous YearsIoREQUEST STATISTICS
Table Ib
1.^.1973 - 31.3.197^
Area 2

Number of Requests for Data
Originating
Organisation

Experimental

Evaluated

Bibliographic

Codes,
Documents

Total

Government
Laboratory
University
Industry
Other

110
15
3
2 2 (a)

91
7

12

13

10

1
9

226
22
6
55

150

114

22

23

309

Total

(a)

4-C outside EXFOR(b)

4-C : 7
Hospitals:

Total
Previous
Year

7

•a

fD

x

•a o

REQUESTS STATISTICS
Table Ic

•al.M.1973 - 31.3.1971*
Area 2x

Number of Requests for Data
Request
Disposition

Experimental

Evaluated

Bibliographic

Codes,
Documents

Total

Fulfilled
Partially
Fulfilled
UnfulfilledStanding

It3

11M

22

23

302

Total

150

Total
Previous
Year

I

7

7

114

22

23

309

Table I I
1.^.1973 - 31.3.1974
Area 2

AmountDate Type
Experimental

16,000

Data Sets

Evaluated (total)
KEDAK
UKNDL
ENDF
Other

71,900500
12,40026,50032,500

Data Files
Data Files
Data Files
Data Files
Data Files

Bibliographic

28,000CINDA Entries

containing 1,767,000 data points

Codes andDocuments

09

REQUEST STATISTICS
Table III
Retrievals for experimental data sorted by Z f A, Q
1.4.1973 - 31.3.1971!
Area 2

z

S

A

all

i-H

2

Ne

11
12
13
14

Na
Mg
Al

Si

9

9

2

4

7

1

9

Pes.
Stat.
Params. Params. Other

Total

4

2

68

3

33

7
4

7
3

6

24

17

1
1
2

1

1

2

3

3

4

13

15

7

1

1

1

3

1

2

5
3

3
4

6

2
10
10
11
1

4

3

6

2

2

2

2

3

22
11

6
4

3

7

3

27

1

2

2

3

CVJ

10

1
1

47

n,Y

3

6
CVJ

3
4
4
6
7 N
8 0
9 P

2

nn

n.f

n.x

nn1

i-H

H
He
Li
Be
B
C

a

CM

all
all P.P.

°t

>

a
xs
o a>
3
OC a

1

62
23

55
5

14

I

Appendix
page 9- 35 -•=r c-- in

f-

rH
rH

CM

•p

^r

cr\

cr>

O

in

CM

rH

in

CM

in

rH

in

CM

vo

o

to vo

o

rH
rH

CM VO

O
CM

•=r CM

rH

vo

rH

to vo

CM

*

in

to i nroCMtO

ro in vo

0)

co

<D

t-rH

VO

D

CM

rH

O
rH

S-,
CM

Q)
JZ
.p

CM

rH

-=T

o
• w
CM

-p f-.
co aw
m u( X CD
(X,

X

CM

o

in

rH

rH

rH

OO

tO

VO

CM

CM

in vo

o

CM

in

VO

c

c
,_

•A

tO

CM

tO

c

c
D

rH
rH

c

c

tO

VO

XT

to

to

t>
,p

rH

vo

ro t oCM

CM

rH

fe O 2: O

rO

rH

CM

D

rH

rH

CM

cd

<

CO

t-i

CO

U

a. co o < >< oi n voNr~irHt— oo cJ\
rH

rH

r •H

O
CM

O -H

0)

CO

E-<

>

O

rH
CM

CM
CM

1^
CM

CM

O

•rl

i n vo

b- oo

CM

CM

CM

CM

3

C
Nl

a)

*H

5-i

o o < CO CQ

W

O\

O H

CM

ro

te co

m n ^ in vo t > - COro »o to to ro ro ro ro

s

A

all

2

39 Y
40

1

nn

nn'

2

4

Xe
Cs

60

Nd
Pm
Sm

5

n,Y

2
2

3
7

n,f

n ,x

Res .
Stat.
Params. Params. Other* )

Total

CD

2

4

21

X

2

19
26
22

6

8
4

7

1

17
18
1
1
1
1

1
1
1
1

5

16
8

5

22
2

2
1
1

1
1
1

Ba
La
Ce
Pr

63 Eu

1
r-i

54
55
56
57
58
59

2
1
1
1
2

LfN

Rh
Pd
Ag
Cd

49 In
50 Sn
51 Sb
52 Te
53 I

61
62

a

Zr

41 Nb
42 Mo
43 Tc
44 Ru

45
46
47
48

°t

LfN

z

2
1
2
2

1
1
1
1
1
1
1

4

4

1

5
6
3
3
5

6

4

11
17

6

2

15

10

6
5
5

6

ON

2
2

14
16

I

7

27

10

32
21

2

4
8
8

4

15

7
4
5
4

3
2

5
7
2

4

8

2

3

6

4

2

2
2
1

1

3
7

13
14
17
4
15

7

6

18

10

12

31

Appendix
page 11Res.
Stat.
Params. Parans, Other

Total- 37 -

oo

CM

in

CM

00

VO

C7N O"N

rH

VO

CM

VO

X

K\

4-

i£)

CM
CM

rO
rH

VO

VO

CM

^r

rH

CM VO

oo

CM

CM

O\

rH
rH

rH

CM

rH

CM

D

CM

rH

rH

VO

CM

£T

CM

c

c
CM

in

r-{

rH

in

CM

rH

rH

rH

rH

rH

rH

c

D

c
c

r-\

CM

CM

-=r

c
c

tO

D

CM

all

CM

rH r-t

CM

CM

CM

4)
PL<

3

CM

CM

rH

<

CO

o

EH

Q

O
X

in
VO

VO

VO
VO

t— oo O\ Ovo vo VO ^

U
W

E

JO

3
H
f-

OH

X

CM

c—

CO

E-i

>

CO
K

CO h
O
M

i n vo e— oo
t— t— t - t^-

H

^3 •H

O -P

EH

PU

PM

OQ

H
«M K\
o OO
OO

oo

00

C

t j CO<; os Htt

-sr i n vo t— oo
OO OO OO OO OO

(S3

A

S

all

°t °nn °nn»

n,Y

n,f

n,x

Res.
Stat..
Params. Pararns. Other ;

Total

CD a>

1

\

89
90
91
92
92
92
92
92

93
94
94
94
94
94

Ac
Th

X

3

Pa
U
U
U
U
U
Np

5

5

1

1
1

233
235
238

Other

7

6

3

2

5

1
232

Pu
Pu
Pu
Pu
Pu

*)

•a
P
en

M
11

3

5
238
239

1

240
241

1

7

2
1
1
1
1
2

1

1

1

1

3

5

3
11

12

31
15

7

36
47

2

9

1

1

1
1

24
2
26

20

19
22

1
1
1

2

1

1

33

35 155

180

225

283

136

1

25
2

188

1

1

1

41

48

16

254

1520

: mainly neutron emission cross sections, (n,2n),(n,3n) etc.,
and y production cross sections.

00
IAppendix
page 15- 39 -

REQUESTD

STATISTICS

Table IV
Requests for experimental data sorted by Requesters' Category
1.4.1973 - 31.3.1974
Area 2

Requesters•
Category%

N° ofRequestsof Known

Experiment

16

18%

Evaluation

49

54%

Research

6

7%

Applied field

16

18%

Compilation, review

3

3%

Total known

90

100%

Unknown

60

Total

150

150

XI

: CCDN Retrieval Statistics(experf mental dafa) .
V..April 1973 - 31 March 1974
U

c

100

O
I

50

ill Z

80

90

100

AppendixE

KDS Report to Tenth 4C-Meeting
3..

STAFF

1.1 Since the last 4C-Meeting, Leif H.jarne and Peter Winiwarter left theSection in June 1974, and Francisco Manero in September. Charles Dunford isleaving beginning of May 1974. Alex Lorenz, who is well known to everybody
joined tho Section again in October 1973. He is deputy head of the Section andresponsible for non-neutron nuclear data. Peter Smith from Canada joined theSection in November 1973» He is responsible for TOENDA. Mr. Khalil from Iraq- ia
supposed to join the Section in July 1974* He will do compilation and datarequest work. Keinhart Lammer, who was responsible for Cinda compilation, will
leave the Section in summer 1974 and will be replaced by his wife Traudl Lammer.
1.2. One post was vacant throughout the report period, and for several
months even two or three posts were vacant. As a result there was permanent
shortage of manpower for compilation work.
2.

CINDA

2.1 CINDA 74 is being published on schedule. For the first time, it willserve as a data index to the Exfor data exchanged by March 1974, to the Bologna
library, and to some parts of the UK library. The completeness of Cinda-entrios
can be regarded as very good for the NDS area.
2.2 The NDS Cinda work suffered from the fact that some details of the
NDCC Cinda system are not yet properly working. We hope that these items will
bo solved during this meeting.
2.3 The Cinda card-check program has been brought up-to-date with the
input specifications of the new system. It will soon be linked directly to the
Exfor dictionaries for ref-codes and lab—codes in order to avoid duplicate updating of dictionaries.
3.

EXFOR

3.1 After f i n i s h i n g the conversion of old Dastar data i n t o Exfor, Exforcompilation continued at a somewhat reduced r a t e .
3.2 The coverage of new data was f a i r l y good in f a l l 1973> 'but due tothe lack of manpower (see above), some backlog has developed since then.
3.3 Computer programs were w r i t t s n or improved for indexing incoming
Exfor tapes i n Cindu, and for indexing a l l area 3 + 4 Exfor e n t r i e s i n Cinda.
3.4 Great care has been given to the d e t a i l e d discussion of the planned
revision of Exfor to allow for rnore-dimensional t a b l e s .
4.

EVALUATED DATA
4.1

A number of new or revised files from the UK-NDL were received.

4.2 The USSR Nikolaev library has been received on tape. This tape was
not quite in order; a number of records in different parts were not readable.
Since the tabular data were available, the tape could be prepared but not earlier
than on 2 May 1974. Copies of the tape will b© sent to KDCC and NNCSC.
4.3

The ENDL library from Livermore has been received.

- l\3 -4.4

Appendix
page 2

E

Some supplementary files of the Bologna library were received.

4.5 Information about evaluated available data will be sent out tocustomers.
_5J

CUSTOMER SERVICES

jj..l The EDS statistics for the period 1 May 1973 to 30 April 1974 is sub
mitted as a separate paper. The total number of requests received has slightly
decreased, most likely due to lack of advertising. In the report period there
was no advertising by a field trip nor by an issue of CINDU or a Newsletter.
Ihie to lack of manpower, any advertising was postponed to a later date.
5.2 Customer services in the M)S area are still much hampered by the
incompleteness of Exfor. We obtain much of the data missing in Exfor from
Neudada retrievals provided by NDCC. But the inconvenience for data users to
get data-retrievals in two different formats is obvious.
5*3 Requests for numerical data are usually supplemented by a Cinda
retrieval provided by KDCC.
6_.

TRANSLATIONSTranslation of USSR documents continued as far as was possible.with thetranslation manpower available at IAEA. In fact, the delay in translation of
USSR progress-reports is such that the translations will be of limited value
only at the time they come out. The situation must be reviewed.
J^DATAREVIEWS

7.1 The review by A. Calamand on the cross-sections for fission-neutron
spectrum induced reactions was published in INDC(EDS)~55>Sept 1973* It will bo
included as one chapter in a data handbook for neutron activation analysis.
7.2 Work continues on the review of neutron dosimetry cross-sections.
Part I,containing the first priority reactions, was published in October 1972,
part II is in preparation.
7.3 The evaluation of the 2200 m/s and thermal neutron data of the fissile
isotopes is continuing. It was much delayed by lack of manpower. An intermediate
version was used, with some adjustments, for ENDF/B—4.
8_.

REQUEST LISTS

80I The re-programming for TOENDA has been completed, the documentation
is being prepared.
8.2%.RESEARCH
9.1

WRENDA 74 was given to the printers on 15 April 1974 as scheduled.
SUPPORT
The target-and-samples program continues*

9.2 A cooperative research program has been started to measure theRh-103(n,n')Rh-103m reaction in various energy-intervals from threshold to
20 MeV. Cooperating institutes are at Pretoria (South Africa), Sao Paulo (Brazil),
Geel (Liskien), IAEA Seibersdorf lb (Czock, to supply Rh-103 samples), Mol (Pabry,
for integral measurements)*

Appendix
page 310.

E- 1|1| -»NON-NEUTRON NUCLEAR DATA

10.1 A Questionnaire is being prepared, which is to have a very widecirculation, in order to find out which data are required in which presentation.
10.2
11.

See also under meetings*

PAST MEETINGS

11.1 Consultants Meeting on Nuclear Data for Reactor Neutron Dosimetry,
10-12 September 1973, Vienna. See INDC(NDS)-56.
11.2

6th INDC-Meeting, 8-12 October 1973, Vienna.

11.3 Panel on Fission-Product Nuclear Data, 26-30 November 1973> Bologna.
Proceedings are being prepared.
11.4 M o Vlasov attended the Euratom Working—Group on Reactor Dosimetry,
14-15 March 1974, Brussels.
11.5 Consultants Meeting on Charged-Partiole and Photonuclear Data,
24-26 April 1974, Vienna.
11.6 Specialists Meeting on Nuclear Data for Applications,
29 April-3 May 1974i Vienna.
12.

FUTURE MEETINGS
12.1

A. Lorenz will attend the CODATA Meeting, 24-27 June 1974» Erevan, USSR.

12.2

7th INDC-Meeting, 7-11 Oct 1974, Lucas Heights, Australia.

12.3 Specialists Meeting on Nuclear Data?for Transactinides, March 1975>
Karlsruhe or Paris.
12.4 Consultants Meeting on the Use of Nuclear Theory in Nuclear Data
Evaluation, Pall 1975> Vienna.
12*5

The Third Nuclear Data Conference remains uncertain*

{ Requests f o r ( E x p e r i m e n t a l Data j Evaluated Datai Documents

j Ournulat. j 1 Kay 73; Cumulct. | 1 Kay73f< request origin j T O t a i s-30 Apr74 Totals '-3OApr.74

Cir.da Retrieval!

Currulat.j 1 Ray 73! CirailatJ 1 fcay 7

Totals-30Apr.74i Totals

2

1

0

42

2

39

4

4

2

93

9
28

3

91

64

11

S5

14

4

44

10
1

16

0

14

2

Subtotal

200

1785 _ i _ _ i J

i_2_34

15
2

1
0

0
2

20

Follow-up t o area:
1
66
2
65
50
3

4

37

2
3
2
1

Subtotal

218

8

2

J

53
0
0
0
0

[

0

I :•".-*.".' 7 X

3v.iAor.f4 !
„,Incoming from area:i
26:c:;is_ ,'jota.LK__!___

C

c

127

34

16

1

256

36

7

0

24_

T

543

0
20
0

0
4
0

63
102

c

41

20

3

n
7

53

T 264
?</i

14

30
53
133

2
2
11

"i

K3S origin, sent to
area:
1
27
2
33
3
129
4
13

2
2
8
1

1
8
0
2

Subtotal

202

13

11

TOTALS

620

38

116

0
0
0
0

2
4
4
0
10

15

250

0
0
3
0

0
8
0
0

3
56"

52

0
0
0
0

..4

0

j

231

16

5

! 1038114--I• From IH)S to other centres (or physicists in area 3) to help f u l f i l an incoming req[uest.
•o

a
a

fD ro

a

Appendix E
page 5Kyporimentalofd.-i.l,,']AREAou mu 1 fit i VP

1

2 527

2

3 599

3
4

4 339
623

TOTAL

11 088TOTALT) DLOO

1

sets

No. of data linos

t 1 Kay 7 3 - 3OAp74 cumulative15

68 13969 336406 930
160 999

1 742
1 553
95 11917 3701 O84

705 404

115 784

47
124
898

(7 8 7 7 )(previous period)

lN?ay73-3OApr.74(254 387)
136 761

639

Evaluated data dissemination log

ABEA

1
2

3
4

; Ko. of data a c t s
No. of data lines
1
1.
lMay7'3-3OAP74 cumulative lMay73-3OApr.74/cumulative
228 O99
1 172
403
935
246 156
1 096
200
2 596
2 196 437
1 936
446 8625 395
739 0911798
309
83 484
9 461

2 848

(previous period)(1 994)
1 379

TOTAL

TOTAL

Note:

3 409 783

533 B77(628 474)
578 831

The figures in brackets are due to the dissemination of KDS data
reviews of certain data types which have been retroactively
entered in the logs for good order's sake; these reviews containboth evaluated and experimental data Bets. The figures below
are the s t a t i s t i c s ac they were given at the l a s t 4-C-Keeting.

-

Appendix
page bU7 -Dissemination from EXFOR f i l e s

Overall Period
Exfor datafrom area

no. of sub-entries

no.of lines
58 901

4

1071
672
474
136

TOTAL

2 353

1
2

3

174 6364 688
1 569
239 794

Period May 73 - April 74
Exfor series
from area

no.

of

*
sub-entries

no. of lines

*

1 +5
2+6
3+7
4+8

120 + 238 = 358

99 = 230
3 = 135132 +
52 + 59 = 101

13 749 + 8 085 = 21 834
67 078 + 792 = 67 870
20
401
381 +
763 + 596 = 1 359

TOTAL

435 + 399 - 834

81 971 + 9 493 = 91 464

563

84 747

TOTAL
previous period;

131 +* First figures refer respectively to the EXFOR data entries beginningwith 1,2,3,4;
second figures to the EXFOR entries beginning with 5|6f7 and 8(i.e. the older NNCSC files).

Sent to: East Germany (DDR), India, Israel, Poland, Romania, South AfricaEPeriod 1 Hay 1973 - 30 April 1274
Quantities requested-•oExperimental data

n •n
to

(Figures in colunms represent centers 1,2.,4 s.r.d area 3)
In general, each ZAQ ird.ics.ted v;as requested only once

Q,
1

I- -

SCATTERING
Element

ALL/
MANY

FISSION

RIA'lEsl-LDLjT^TilSELiDEL SIN; DIN IMC-! SCT (TSLJiSKS |ABS|K

I

i

I

l!

I

j

i

I

I

li

! I

V? V

NA I! N ? ALr) 3 T ;
'1TA

-s—

01 K D03
01 D 002

04 Be 009
06 C 012
08 0 016
24 Cr
25 Kn

I
.Cr

26 Fe
26 Fe 054
26 Fe 056

OO
I

28 Ki
33 As 075
45 Eh 103

47 Ag

49 In
51 Sb

79 Au
90 Th 232
92 U 233
92 U 235
92 U 238

94 Pu 2393!

Appendix E
page aSOME COMMENTS RESULTING FROM COMPARING STATISTICS OF
MAY 72 - APRIL 73 and MAY 73 - APRIL 74- The t o t a l number of r e q u e s t s ( a l l t y p e s ) h a s dropped.
*
146 v e r s u s 114 .
- The number of follow-up r e q u e s t s h a s d e c r e a s e d .
iror 93 incoming r e q u e s t s , t h e r e were 26 follow-up r e q u e s t s made]?or 84 incoming r e q u e s t s , t h e r e a r e 14 follow-up r e q u e s t s madeAmong t h e s e 14 r e q u e s t s , t h e r e a r e :2 d i r e c t e d t o NKCSC ( l f o r e v a l u a t e d , 1 f o r experimental
7 ""NDCC ( 4 Cinda r e t r i e v a l s ,

1 '•

"

CJD f o r experimental

data)

3 for exp. d a t a )data.

As of today a l l these follow-up requests have been filled, except the
one directed to CJD, where the data were announced to be on the way.
- Requests for experimental data have dropped by j^- 45$:
63 against 38.
- From these 38 requests, one can see by the type of follow-up requests
mentioned above that 33 could be satisfied at NDS from EXFCR and Dastar
files.
- Feferring to the experimental data dissemination log, the number of sets£.nd lines dispatched reflect a somewhat constant volume of activity. Thismeans that the number of data sent per request has increased.
- Kecruests for evaluated data

are less numerous for the present period:

21 against 15.

Here again, the evaluated data dissemination log shows a more or lessconstant voltime of evaluated data sent out. This results from the factthat evaluated data are sent out either on a specific request, or
automatically to interested recipients.
«- Cinda retrievals remain constant: 4 against 5.
- Requests for documents remain more or less of the same amount:
54 versus 56.*

* First figure given = last period
2nd""= May 73 - April 74

Appendix
page 9E- 50 -- Filled and Unfilled Requests:
For a tottvl of 3-14 requests:
9 document req\iosts with 13 items,
11 experimental data requests with 13 items are unfilled.

-

No other type of requests appear in these s t a t i s t i c s .

- Note that the previous yearn contain _n° unfilled requests,
GO that the overall period (lo33 requests) have the same 20 requests
unfilled.

- Thus they may be called "stand-by" requests more than "unfilled".

- 51 -

AppendixP

NUCLEAR DATA CENTRE (CJD) PBOGHESS HEPOEPEXFOR. Nuclear Data Centre has sorted all the experimental
works published during 1970 - 1973 years. Status of compilingthe works which are to be compiled in EXFOR and have been published since introducing EXPOR - format is shown in the following
table (by the first of March 1974):

Year
1970

1971

jTotal number ; Compiled in i;for compiling ;EXFOR
Jin process; in EXFOR
;

40
68

29
44

6
8
I

{Numerical{data;requested

5
16
6

36
43
8
20
35
7
I97O-I973
186
116
2J5
47.
During the period of 1968-1969 years 150 experimental works
were published. 43 from this number have been compiled in EXFOR.
Now sorting of the works of the above-mentioned period is being
completed.
Since the last four centre meeting the emphasis on compiling the works published during 1970 - 1973 years has been made.
The tapes 4014, 4015, 4016, containing 42 entries have beentransmitted. The tape 4017 is being prepored for sending. Considerable efforts have been spent in CJD to put into proper orderthe EXFOR library (rewriting old tapes, inserting corrections).
In the main this work has been completed.The cataloque on
Z, A has been made. The work on programs relating to the EXFOR
library is continued. We have put into operation the program
which enables putting on a magnetic tape error detecting anderror correcting codes and in this way to make more reliable
reading of nuclear data information. This year CJD makes
attempts to involve the measurers themselves in compiling in
EXFOR their own works*
EVALUATED DATA. Nuclear Data Centre continues developing thefull file for iron. Two programs for calculation of resonanceneutron cross section are put into operation. It has provided
1972
1973

Appendix
page 2

F= 52 -

output of the results to the plotter. A number of programs
relating to the evaluated data library has been put into operation at CJD (including programs of ehecking and converting thedata from other formats to the soviet one).
DEVELOPMENT OP SOFTWARE AND HAEDWARE OF M-222. FORTRAN has
been put into operation in CJD on the computer M-222 and we began
to use it. We also began the works on connection the new four9-tracks magnetic tape units with the computer. It will be possible
then to use a 1/2 inch magnetic tape.
DETEBMINATION OF REQUIREMENTS AND NUCLEAR DATA ADJUSTMENT.
The work on a system of programs for general perturbation theory,
planning of experiment and nuclear data adjustment has been
completed. This permits CJD to use the evaluated integral experiment library for making nuclear data correction. On the basisof the above-mentioned system the requirements in nuclear data
accuracy are being worked out taking into account integral experiments (priority I) and without their consideration (priority 2 ) .
CJD EDITION. During the previous period the Bulletin"Nuclear Constants No. 12 and collections of abstracts "Nuclear
Physics Investigations in the USSR No. 15 and No. 16 have been
issued.
REQUESTS. Nuclear Data Centre has received from institutes
76 requests:
documents
17 requests
evaluated data
26 requests
experimental data
3J5 requests.
CJD have sent 4-3 documents to these reguets. Of 59 requests
on numerical data 49 requests have been fulfilled completely. In
comparison witn the previous period the number of requests has
increased twice.
The quota of the requests from measurers appreciably increased.

- 53 -

Appendix

SCISRS-EXFOR Conversion
Among the preliminary EXFOR entries createdautomatically from the old SCISRS file, NDS
found the following correspondences with final
EXFOR entries. Thus, the preliminary EXFOR
entries listed in the left-hand column below
should be deleted.

Preliminary
EXFOR- 50 0 3 * .CC3
E XFDR- 5 0 0 8 * . 0C4
E XFOH- 5 0 9 1 5 . 002
E XFOR- 50 « 1 5 .004
EXFDR- 51674. 0 0 3
E XFO«- 51 7 3 9 .00 3
EXFQR- 51051 . 0C8
EXPOR- 52070. 0C2
EXFOR- 52070. 00 3
EXFOR- 52070. 004
EXFOR- 52C70. 0C5
EXFOR- 60064. 00? =EXFDR- 60064. 003 =EXFOR- 60455. 002 =EXFQR- 60455. 0C3 =EXFOR- 60457. 002 =EXFOR- 60457. 003 =EXFOR- 60457. 004 =EXFOR- 60686. 0 02 =EXFOR- 60688. 002 =EXFOR- 60759. 002 =EXFDR- 60759. 003 =EXFOR- 60759. 004 =EXFOR- 61124. 002 =EXFC1R- 61156. 002 =EXFOH- 70205. C02 =F.XFOR- 70205. 003 =EXFOR- 70205. 004 =EXFOR- 72000. OOP. =EXFOR'•80033. 002 =EXFOR- •80033. 0 0 3 =EXFOR- •80033. 0 0 9 =EXFOR -H0041 . 0 02 =EXFOR- •80093. 002 =EXFOR- •80099.
EXFOR- •80099. 0 0 2 =EXFOR- •80099. 003 =EXFOR -80099. 005 =EXFOR- -80 0 9 9 . 007 =EXFOR •80099. 008 EXFOR -80205. 003 =EXFOR -80316. 002 a
EXFOR •80328. 003 =Final1014 3 .003
10143 .009
1010 0 .003
1010 0 .0 04
1 0009 .00?
10?07
10040
1 0032 .O02
1C032 . 0 02
10032
1003 2 .00?
2C025 .002
20025 .003
20129 .008
2 0 1 2 9 .00f>
20117
20117

201 17
20072 .002
20075
2 013 9 .003
2 0 1 3 9 .005
2 013 9 .004
20024 .007
20142 .005
3 0 0 4 6 .002
3 0 0 4 6 .004
3 0 0 4 6 .005
30111 .003

40055 .003
40055 .003
40055 .002
40021 .002
40074 .004
40062
40062
40062
40062
40062
40062 004
40077 002
30209 002
40132 002

0

AppendixH- 5k Memo 4C-V98, revised

To be entered in LEXFOR:REFERENCE
Under the information-identifying keyword REFERENCE, not only
should the reference from which the data was taken be
mentioned, but also other important references such as
journal articles, conference papers, anC laboratory reports.
Progress reports and abstracts may be excluded.
For the coding rules see pages VIII.6 to VIII.11 of the Manual.
The purpose of the bibliography is to help the compilers
to avoid duplicate entry of data in EXFOR, andto help identifying a data set when data are requested byreference, and to help the users of EXFOR,
to get easy access to any additional information hemay wish to look up in the published references,to check whether a given reference has been consideredby the compiler or not.
Therefore, the free text should indicate to the user of EXFOR :* which is the main reference,* the kind of information contained in each givenreference, e.g. "instrumentation only, graphs only,
no data, theoretical analysis, etc..*"When translations of references exist, these should be included
also, for the convenience of the users of EXFOR.
Important references which are published only after thecompilation of the EXFOR entry, should be added subsequently
and the entry be retransmitted according to page IX.2 of theManual. Usually such a new reference will provide additional
information on the experiment or the numerical data, whichshould be added and retransmitted simultaneously.
If data have been received by private communication, name anddate of the private communication may be entered under "STATUS"
or as a reference (see page VIII.10).
Note : NDS feel that a private communication should only beentered under REFERENCE if there is no other reference. If apublished reference exists, a reference to a private communication
seems usually redundant and of no use. NNCSC does not agree.
If the coding of the references in EXFOR is coordinated with theblocking of the same references in CINDA, both systems will
benefit. Compilers at NDS should take care that the bibliography in EXFOR and CINDA is always identical.

- 55 "LEXFOR

Appendix

I

ENTRY

GENERAL QUANTITY MODIFIERS
The general quantity modifiers are AV, SPA, FIS, MXW, FCT, REL
and RAW. They can be added to any quantity without requiring
an entry in dictionary 14. Some of them require clarification :1.

The RAW modifier is used for raw or uncorrected datasuch as transmission data, reaction yields, raw gamma
spectra, etc. A centre is free to transmit or not totransmit this data but if it decides not to do so, adummy entry with NODATA should be transmitted stating
under STATUS under what reference the data is available
at the centre (*). If applicable energy range andrough size of the data set should be mentioned.
The RAW-modifier should always be explained in free text.

2.

The FCT modifier is used if the data has been multiplied
by a defined factor not containing another quantity(e.g. a mathematical factor, an abundance or a branchingratio). Explanatory free text is compulsory. If thefactor contains another quantity, the appropriate
ISO-QUANT combination is to be used, except in the case of aratio of the same quantities (see REL-modifier).

3.

The REL modifier is used in case of shape normalised
data, i.e., data proportional to the quantity given.
There are two cases :a.
b.

The normalisation factor is unknown. ARB-UNITS
should then be used.
The cross-section is divided by a cross-section ata certain energy or angle. In this case theunits are left to the discretion of the compiler.

Note : NDS will always use ARB-UNITS if the RELModifier is used.
An exception to case b. is the ratio relative tothe cross-section at 90 degrees, in which case the
RSD modifier has to be used with units NO-DIM.
The REL modifier always needs explanation in free text.

(*)

This data should be made available in some format to thecentres upon request.

AppendixJ- 56 -

Proposal for the retransmission of subentries which have been combined
into one subentry

In the case of a retransmission of a series ofNsubentries (x through y)which have been combined into one multidimensional table, the following
simplified flagging system may be used:1.

Enter under history in the combined subentry:(yymmdd) Subentries x through y combined2.

For subentries x + 1 through y transmit N0SUBENT records
containing the subentry number in the n, field and an *in Col. 80.

- 57 -

Appendix

Storage end Retrieval of
Neutron Capture Gamma-Ray Spectra

M. R. Bhat
National Neutron Cross Section Center
Brookhaven National Laboratory
Upton, New York 11973

1.

Background
Recently, it has been suggested that neutron resonance capture gamma

ray data should be stored in the CSISRS data files along with the neutron
cross section data.

Such information is needed for studying nuclear

structure and for obtaining accurate values of neutron binding energies.
In addition, the data are necessary for shielding and energy deposition
calculations and "prompt" activation analysis.
the gamma spectra

It is necessary to record

with the best possible resolution and supplement itwith coincidence and angular correlation measurements and other data forthe basic physics needs.
spectraHowever, for shielding applications the gamma

need by given in broad bands 0.5 MeV or so wide.

For activation

analysis a few of the more intense gamma rays are needed and it may not
be necessary to catalogue every gamma transition observed.

In storing thecapture gamma rays, one is immediately faced with the enormous volume ofthe data.

The data as recorded by a Ge(Li) detector may contain a few

hundred gamma rays measured at thermal neutron energy and a few neutron
resonances.

Lower energy gamma re.ys measured with a crystal diffraction

spectrometer have resolved thousands of gamma rays in a limited energy
region (E< 1.5 MeV) in the case of a few rare earth nuclei.

A roughorder of magnitude estimate indicates that the total data will be of theorder of 5 x 10 s data points.

The size of the current CSISRS-2 libraryK

Appendix K
page £- 58 -

is about 1.2 x 10" data points.

Therefore, the capture gamma library

could be handled by the existing programs and techniques.

The entry of

new data into the library could be further facilitated if the experimenter
sends his data on magnetic tape in a standard format.

However, one

cannot help asking the question:

io it necessary to store all the captute

gamma ray data in all its detail?

The following are a few alternate

suggestions which should be considered.
One such suggestion is to leave out the weak gamma rays whose
intensities are below a certain value.
the data files.

This would reduce the size of

Besides, gamma rays which are very weak in all the resonances

may be due to background, impurities or quirks of the fitting program so thatno one would miss them.

The immediate reaction to this proposal is that this

implies an evaluation and that the data files should contain every bit of information Che experimenter thought worth reporting.
Another suggestion that is usually put forth is to bunch the gamma rays
into bins a few hundred keV wide.

This proposal may be even more repugnent

than the first one because it implies loss of information by degrading theexperimental data to suit a particular application, e.g.:.ations.

shielding calcu-

Besides, this loss of information will be felt when more sophisticatedfuture applications need the details.
An easy way out is to propose that every bit of detail in the measured
data should be entered into the data files.

These are needed of course fornuclear structure studies though coincidence measurements and other data
are necessary to make use of them.

Besides, one always has the feeling that

if all such data are not available somewhere they are for ever lost to thescientific community and somehow the sum total of human endeavor would be
the lesser for it.

Besides, It is usually said that if thousands of gamma

- 59 -

Appendix
page 3lines were worth measuring then they are worth storing though some of thesilent minority might wonder were they worth measuring?
Assuming that the proposal to store the detailed gamma spectra asreported by the experimenter is generally acceptable it appears necessary
to decide what kind of primary and auxiliary Information should be stored
and the formats for doing it.
Some thoughts on the physics information of the data one should store
are discussed in the rest of this memorandum.

It seems more appropriate

to go into the details of the format and the mechanics of storage andretrieval after the physics content has been agreed upon.

Capture data

can be coded within existing formats and more efficient formats are underdevelopment.

Though one should mention again that it would very convenient

if the data is available on a magnetic tape directly from the experimenter.
This would obviate the need to code the data manually from the printed
page with its attendent errors and delay.
k few enquiries at likely places have shown that at present capture
data is not available on magnetic tape or any easily transmittable form.
The only exception seems to be the one data set of Rasmussen et al. on
thermal capture.

KAppendix
page 4

2.

K- 60 -

Introduction
This memorandum discusses the details involved in entering resonanceneutron capture gamma ray data in the CSISRS data files and the exchange
format.

Such data used to be measured with Nal(TZ) detectors or with one ofa group of magnetic spectrometers.

With the advent of Ge(Ll) detectors,

the quality of the capture gamma ray data showed great improvement
because of better detector resolution and appreciable efficiency.

Inthe meantime, high resolution crystal diffraction spectrometers werealso developed, spurring further improvements in the different typesof magnetic spectrometers.

The result of all these advances in experi-mental techniques has been the collection of large amounts of capture
gamma ray data of excellent quality and very good energy resolution.
Thus, it is not unusual to find publications reporting hundreds ofwell-resolved gamma rays measured over quite a few neutron resonances.
With the development of more intense pulsed neutron sources and tice-offlight arrangements capable of better energy resolution, it Is to be
expected that one would be able to measure capture data in more resonances
up to quite high energies.

With such an enormous increase in the quantityof experimental data, it is very important to decide at the outset what
different types of data are to be entered in the data files, at whatstage of the analysis the experimental data is to be considered as
primary data, and other related problems.

Some of these questions are

discussed in the following pages and a few answers

suggested.

- 61 -

3.

Appendix
page 5Experimental Data
The first question one should try to answer is whether the data enteredin the files be in the form of say the pulse-height spectrum as recorded
by a multi-channel analyzer.
reasons.

The answer is a definite no for the following

Apart from the fact that such data tend to be very voluminous,(4096 channel analyzers are common these days) the main objection against
6uch a procedure is that the raw data are very dependent on a particularexperimental arrangement, and it would be very difficult to find a common
basin for comparison between data from different sources.

Thus, the raw

data from Ge(Li) detectors is very dependent on all the different instrumental variables like the detector resolution, efficiency, background,
scattering from the surroundings, data collection time, counting rate corrections,detector size and configuration, to name only a few.

It would be almost

impossible to list all the characteristics of the apparatus needed to analyze
the data by suitable unfolding procedures.

This confusion could be further

compounded by the fact that data from different types of apparatus areavailable in different gamma energy regions and would have to be combined togive a composite picture of the whole gamma spectrum.

Hence, it is evident

that the data that are entered into the files should not be the raw data but
the end product of a type of unfolding best done by the experimenter who ismost familiar with his apparatus.
The result of such preliminary analysis is usually given as gamma rayenergies and their intensities (photons/100 neutron captures) either forincident thermal neutrons or for capture in a specific neutron resonance.
In addition, other auxiliary data like the spins of neutron resonances,

K

Appendix
page bK- 62 -

spin-parity of bound nuclear states, polarization data, (n,y) and (d,p)
correlations and a number of different pieces of Information are reported
In the published literature.

Therefore, the next question to be answeredis which of these should be coded into the data files and which should beleft out.
4.

Specific Data Quantities
T e choice of quantities for coding Into the data files should perhaps

be governed by their use in practical applications.

This pragmatic view

point does not make such a choice very easy because apart from a few obvious
examples the data needed for practical use is limited only by the fruitfulness
of ones Imagination and how sophisticated the applications are.
of these quantities is given below as a starting point.

A listThis choice wassuggested by present applications or those expected in the near future.
This list could be enlarged at a future date as dictated by new applications
and the experience gained by entering the capture gamma data Into thedata files.

It may be that the list is too long as It is.

For convenience, these quantities have been divided into two broadgroups viz:

those that belong to the DATA or C0MM0N subsections of EXFOR

and those that correspond to auxiliary or supplementary information andshould be given in the BIBLIOGRAPHIC section.

They are listed on theleft-hand side column of these tables and on the right-hand side are given
comments cither explaining or justifying their choice.
I.

DATA or C0MM0N Sections

QuantityE

Comments
Resonance energy.

ff

J

R

Resonance spin-parity. Independently known ordetermined from capture Y angular distribution data,
multiplicity or ratio of low energy secondary y rays,or polarization experiments.

Appendix
page 7
Quantity

Comments

I

Resonance angular momentum.

F R . r j>>rFR»r_^

Neutron, gamma, fission and total widths of theresonance.

E

Energy limits of the neutron beam. This would
specify the range of neutron resonances covered
as in the average capture measurements with an
Internal target. This could also define a
filtered beam, e.g., the 24 keV beam with an
Fe filter.

E
I1

2

E

Energy of the i-th gamma-ray.

I

Intensity of the discrete gamma-ray, given as
number of photons/neutron capture.

Y

E

,E
Y

l

Y

Energy limits of a group of unresolved gamma
rays.

2

y(E)

Number of v * a y s per capture per unit energy
interval in the continuum.

r

Individual y-tay width in cV.

Differential cross section for producing a
gamma-ray E . at neutron energy E at angle Q.

Differential cross-section for producing a
gamma continuum E to E + A, E by neutron ofenergy E to E + A E
at angle" Q. This quantity
could also contain a mixture of discrete andcontinuum Y-r. . ._^ 'II.

Normalized energy distribution of the whole yspectrum where 1/ has been defined before and U
is an upper limit of integration, usually U - B(B *> binding energy).
"
BIBLIOGRAPHIC INFORMATION Section

EL, ML

Multipolarlty of the v-ray.

6L

Mixing ratios of different multipolcs.

KAppendix
page bK

Quantity

Comments

Spin-parity of initial state, which may be abound state or a neutron resonance.

Spin-parity of final state.

1/2

Half-life of a bound state if it is an isomericstate.

if

Transition probability for a y transition frominitial state i to final state f.

pairInternal pair formation coefficient (usuallydenoted by F ) , if experimentally determined.

V V V ctc'

CO

»etc-

Internal conversion coefficients for K, L, M, etc.
shells if experimentally determined, for:(a) Primary y~ r a y s ; These are of theoreticalinterest and are used to assign multipolarities
for these transitions.
(b) Low Energy Secondary y-rays: These areimportant in practical applications involving
calculations of energy deposition in moderately
thin aggregates of matter. Because of thisprocess, there is a decrease in intensity of
the low-energy y r a y s as some of them areinternally converted, depending on their multipolarity, etc., with the appearance of intense
peaks of the characteristic x-rays. Such asoftening of the yspectru™ ar»d a change in
its energy distribution materially affects theamount of energy absorbed in a shield or asample.
Flourescence yields of K, L, M, etc. shells.
These define the ratio of the number of photons
emitted when vacancies in an atomic shell arefilled to the number of primary vacancies inthe shell. T ese are important as they determine
the actual number of x-ray quanta emitted.

photon strength function.

YDirect

Direct capture cross section, i.e., the capture
cross section between resonances as calculated
from off-resonance capture (valid for well separated
resonances).

Appendix K
page 9Quantity

Comments
Binding energy of the neutron In the nucleus(Z.A+1) where (Z,A) Is the target.

al°clBni

B

ri

Ev

ci

Effective binding energy of an element containing
more than one isotope where a. is the fractional
abundance of the i-th isotope, a c j its thermal
capture cross section, andits binding energy.

S = > I .E
n ITJ Y* \This quantity, formed by summing over the discrete
Y-rays and integrating over the continuum (after
allowing for internal conversion etc.), may becalled the "observed total Y-ray energy." It issometimes called "observed binding energy," butthis is not a good choice because B is theobserved binding energy determined, e.g., bymeasuring the energy of a primary transition
to the ground state of the nucleus (Z,A+1) inthermal capture. The ratio S n /B n gives a measureof the total Y~ r a v yield observed in an experiment.
Because of missed y-rays or because of the finite
low-level bias of the measuring apparatus, thisratio may not be equal to one. In this case,the intensities are sometimes arbitrarily renormalized
to make this ratio equal to one so as to have energybalance.

Polarization data

Results of measurements of either the circularor linear polarization of individual Y" r ays,and the nuclear structure Information derived
from them.

Coincidence measurements

Results of such measurements on members of acascade and information derived from them.
For fissile nuclei, capture Y"rays are detectedby measuring them in anti-coincidence withfission neutrons.

Ratias of low-energy
secondary

Resonance spins or nuclear level density parameterslike o, a, etc. determined from such data.

Angular correlation
measjrements

Perturbed or unperturbed angular correlation
data and the nuclear structure information
derived from them.

Conversion factor from
intensities to widths

II this Information Is given by the author, it
should be Included. Usually it is based onthermal capture data.

Appendix
page 10

K- 66 -

Quantity

Comments

Neutron source

Type of neutron source, e.g., filtered beam,with Its width and Intensity distribution, or
whether the target is inside a reactor as in
the average capture technique, crystal spectrometer,
etc. Also state of polarization of the neutron
beam.

TargetState of polarization or of alignment of thetarget.

Detectors

Nal(Ti), Ge(Li) detectors.
Crystal diffraction spectrometers: (a) curved
crystal, (b) flat crystal.
Magnetic spectrometers of various types.

5.

Example of Coded Article
In this section an example of a coded article is given and some thoughtson the experience are expressed.

The article is on thermal and resonanceneutron capture in natural antimony.

The experiment described in thisarticle is a two parameter experiment, i.e., with the neutron and the gammaray energies as being independent variables.

The exchange format isbasically suited for accommodating the results of a one parameter experiment.
Therefore, in coding the data of this experiment In the exchange format,
one is immediately faced with its limitations and the tedium of repetition
it imposes.

In addition, a concise two dimensional table conveying a lotof information is broken Into a number of disjointed columns of numbers.
Therefore, it appears desirable to find a more efficient coding procedure.
There are two possible solutions to this problem.

The first solution

is to leave the exchange format unchanged and to strip the data tables tosuit it.

This could be done by a computer program which acts as a "compiler"

and makes the coding of an article as it appears In the literature into
the exchange format less painful.

This has already been done at the NNCSC

* 67 -

Appendix K
page ii

by D. I. Garber who has a working program which does the conversion(private communication).

The second solution Is to change the exchange

format so that it can contuln a two dimensional table In a sensible,
efficient fashion.

If the coded Information beers a one-to-one correspon-

dence to the published data tables, it would be desirable but not necessary.
There have been many suggestions as to how to Implement these changes.
A concentrated effort In this direction in the near future is Indicated.
In concluding this section, an attempt is made to estimate the sizeof the capture gamma data library assuming the neutron and gamma-ray
resolutions available now.

Looking at some of the BNL fast chopper data

the number of high energy primary gamma-rays observed per resonance varies
from about 50 to 130.

Let's assume an average of 100 for this number anda similar number for the low energy secondary gamma-rays.

Further, if

it is assumed that one can measure capture spectra In about 100 resonances
per isotope with the best possible time-of-flight arrangement, for all
the 200 or so stable isotopes available, one gets a grand total of 6 x 10
data points.

This is perhaps an upper limit to such a number and as suchmay be considered to include more than one set of measurements available
on an isotope.

Appendix
page 12ENTRYDIBINSTITUTE
REFERENCE
AUTHOR
TITLE

FACILITY
N,SOURCEMETHODSAMPLE
DETECTOR
PART-DET
CT/.TUSHISTORY
ENDBIB
MOCOHMONENDSUBENT
Bin
ISO-QUANTKL ACCOMMENTENDBIB
COMMONl'N»RES
EV
6,24
ENOCOHMON
DATA
E
6806,66743,06726,4
6613,2K- 68 -

12349
12343001
UUSABNL)<J|PR/C|2i1113,70)

,

,

,

,

;

,

|

)

GAMMA RAYS FROK THERMAL AND RESONANCE NEUTRON CAPTURE
IN SB«i21 AND 3B-123(CHOPF) FAST CHOPPER AT THE BROOKHAVEN HIGH FLUX BEAM
REACTOR, FLIGHT PATH 21.66N, CHOPPER RPM JIOK, FOR
THERMAL CAPTURE RUNS 1,5K,«PM(REAC) REACTOR<TOF> TJME-OF-FLIGHY(POWDR) NATURAL ANTIMONY IN POWDER FORM, WEIGHT 854BM,( G E L P GERHANIUH LITHIUM OETECTOR 10C.C VOLUME ALSO A
37C.C DETECTOR',(G) GAMMAS(4PRVD) APPROVED BY AUTHOR(73040JLC)(1,) INDICATES UPPER LIMIT
BINDING TNERGY OF NEUTRON IN SB-122 IS 6806,6* B 2,KEV
FINAL STATE ENERGIES MAY BE OBTAINED BY SUBTRACTINB
PRIMARY GAMMA-RAY ENERGIES GIVEN BELOW FROM THIS,SPIN J
NOsDIM
3,

MOMENTUM L
NO-DIM

E-ERR
KEV
2,0
2,0
2.0
2.0

DATA
EV
0il
0,24
0fi
0,32

DATA-ERR
EV•03•030,03'03•030,03FLAG
NO-DIM
1,
-03
1,
-03

i
i

433J.I5
ENDDATA•030,09

003

One Subentry/Neutron Resonance
SUBENT
BIB
ISO-QUANTCOMMENT'(51«S8^0, KG, INT j ,PAR/SPA)INTENSITIES NORMALISED TO 1,i8PH0T0NS/PER 100 NEUTRONCAPTURE FOR THE 6523.6KEV GAMMA RAY AS GJVEN BY N , 0 ,RASMUSSEN ET,ALi NUCL.DATAiVOLVA5,61,l968

- 69 -

Appendix
page 13

COMMON
CN-iDUMMY

EV
0,0253ENDCOKMON
DATA

KEV

KEV

6806,66749,66728,96716,86324,7

2,
2.
2,
2.
2.

•

•
•

t> 6 A 2 , 04624,74605,04365,0

2*.
2.
2,
IV)

6659 I 2

2,

DATA
PH/llSi
13,16
0,11
0,72
0.13
1,18
i

I n t e n s i t i e s Gtven as Photons/100 Captures

i
i

0^25
0,20
0,14
0,15
0,17

ENHOATACNCSUBENTOne SubcntryAteutron ResonanceKAppendix L
CINDA;- 70 Points to be settled "between NDS and CCDN

Report prepared by N. Tubbs for the meeting.
the conclusions of the meeting.

It does not represent

The list of pointB in dispute can be divided into two
main sections : recriminations arising from disagreements,
delays or misunderstandings during conversion to and start-upof the new system, and points which concern current running of
the CINDA programs.
The first category is of largely historical interest,since nothing more can be done now. The current disagreements
concern :1.

Matters of programming or operations procedure whichhave produced disagreement, but can be changed assoon as there is time and effort available. HereCentres need only agree on an order of priority,
since no fundamental disagreement exists.

2.

Matters in which a genuine disagreement of "principle"
exists between NDS and CCDN. These questions may not
be of very great importance in themselves, but sometime have very serious impact on the CINDA programs
at CCDN.

In addition, a great deal of work has still to be donein consolidating the program system and operating procedures,and producing documentation. It is very difficult to foresee
how much time will be taken up with transfer of CINDA to the
new CCDN computer and in the U.S. with transferring the fileand programs to NNCSC. As far as CCDN is concerned, help to
NNCSC with the transfer, and safe transposition of our own
system must have absolute priority. Effort required forsolving problems currently in dispute must be weighed against
the need to make progress with CINDA1s more positive aims :improving the completeness and accuracy of the file, establishing permanent computer links to the experimental and evaluateddata files, improving and extending service to customers andto compilers within the centres.
The present list is drawn from a study of CINDA
correspondence between CCDN and NDS over the last two years,
and is believed to be fairly complete. Other points may ofcourse arise in discussion.
I.

RETROSPECT

The three main causes of dispute have been the supply
and checking of test material for the CINDA conversion, errors
in the conversion itself and correction of these errors, anddeadlines for despatch of CINDA entries, material for the
CINDA foreword, and printed CINDA books. While some problems
have cajased rather bitter controversy, they are of little
interest now that the system is running.
Points in this category which are not yet completely
settled are :- 71 -

Appendix
page 2

L

1*

Corrections to entries with wrong authors or withoutauthors, and other cosmetic corrections*

2.

Procedures for updating CINDA dictionaries, and therelation between CINDA and X4 dictionaries.

3.

Distinction between entries with E min = 0 andE min = blank.

4.

Transformation of remaining 'Reftype Z 1 entries tostandard format.

5.

Time loBt in packing and transport of CINDA books
between IAEA and CCDN.

II.

PROBLEMS REQUIRING MINOR PROGRAM CHANGES
1.

Size of CCDN feedback listings, and message content.

These two problems are linked, and may be 3olved
easily. The size of the "errors only" listings sent to NDS
is chiefly due to the number of warning messages. The
circumstances giving rise to these warnings were decided at an
early stage in programming, before any experience was availableof the actual operation of the new system. In the light ofexperience it is clear that their rate of occurrence should be
reduced. The content of messages is simply a matter ofmodifying a message table in the feedback program. Underlining
errors requires more far-reaching program changes, impossible
with the present CCDN computer because of limited time andmemory size, and will not be attempted. For the same reasons,the choice of feedback format options available from CCDN
can not be extended in the next year.
2.

Quantity sort in the CINDA book.

Alterations to the quantity sort in the book can be madesimply by changes to the CCDN booktape program. They cannot
reasonably be made elsewhere without transforming the whole
CINDA file to reflect the new order in the ISAM keys. In viewof NDS' failure to obtain a consensus on this subject before
conversion of the old file, we suspect that the matter is notwidely considered as important enough to justify major changes
in the file. We therefore prefer to leave the sort as it nowis.
3.

Coding rules for entries sent to CCDN

a. Leading zeros in energies : a minor point* We see noreason to forbid • 0.5+6' for '1/2 MeV since it isunambiguous and acceptable to CCDN programs*b. Operations K and L to delete or link whole blocks :Other more urgent problems have held up programmingand testing this option. Since Claes Rickeby isleaving the CCDN in May, it may be some time before
they can be implemented*

Appendix
page 3L- 72 -

0.

Formats and coding rules for data lines : webelieve that CCDN and NDS are now in agreement about
EXFOR and evaluation index lines. Other possible
types of data line remain in dispute, but none ofthese matters pose programming problems. Reftype 'N1
for numerical is not yet implemented.

d.

Checking of "reader vs. area" : CCDN is in strong
disagreement with NDS1 policy of hand assignment ofblock numbers, which made these checks necessary.
However we have agreed to differ, and these checks
have been effectively suppressed within (but only
within) areas 3 and 4.

e.

Some trouble has been caused in CCDN/US exchanges
by entries corrected with operation M = Modify inwhich not all errors were corrected. This is atransient effect, and TIC, who were usually at thereceiving end, modified their programs temporarily
to accept such imperfect entries. We believe that
it is agreed between all centres that in future all
errors in an entry will be corrected.

f.

Rejection of entries with unusual ZA or ZAQ : For
historical reasons testing of Z vs. A is don bychecking a dictionary of upper and lower A limits
for a given Z, rather than against a (much larger)
list of acceptable ZA combinations. ZA combinations
outside these stability limits will be included in a
supplementary dictionary £r forced in by a special
operation after checking. Similarly for some ZAQ(e.g. fission quantities for Z<82). This exception
programming has not yet been done, Entries which
fail the normal input tests will be sent back to NDS
for checking before being forced into the file.

g.

Underscores in modified entries : this requirement
will be suppressed for references and comments, but
retained for the energy field. The change is not
yet made.

h.

Reference coding formats : the most important change
needed is to extend the testing of report codes tocover at least the whole generic code (rather thanjust its invariant root as at present) and if possible
the whole report reference. While we can see arather neat way of doing this, we have not yet had
time, and may not have enough core space at present,
to program it.

1.

Effect of retroactive dictionary modifications on CINDA
a solution to the problem of changed laboratory andconference codes was presented in a recent letter to
NDS. Briefly, where a few entries only are involved
they should be modified individually, but where anylarge number if affected, the old abbreviation should
remain in the file. Acceptable new codes would betransformed on input, while customer output would
reflect the new name. Journal and report names maybe
modified without causing trouble, since such changes
are not retroactive.

- 73 -

Appendix
page 4Lj.

List of reference codes used in book-tapes : The
present list contains a certain amount of redundant
information : while it3 presentation can be improved,
the program i3 used only twice a year and changes toit have lov; priority.

k.

Elimination of cosmetic changes from CINDA supplements
The mechanism for distinguishing such changes isagreed, but the consequential changes to the request
program have not yet been made.

1.

We believe that a selection module must be includedin the CCDN book-tape program in order to reduce theexcessive size of some experiment blocks in the CINDA
book. Suggestions for selection criteria have been
made in letters to NDS and TIC.

m.

Ordering of requests by ZA/Q/Publicati.on date of main
entry. Such a sort cannot be made directly on thenormal CINDA records, but requires a special 3et ofoperations to find the main entry, add its date to
all records in the block, sort as renuired, then to
strip off this date before calling the standard
print module. This has low priority.

Ill,,

PROBLEMS OF ORGANISATION

1. It is hoped to produce the new CINDA manual with a glued
flexible binding so that leaves can be separated for inclusion
in a looseleaf binder. CCDN do not wish to make continualmodifications as is done in EXFOR, and for this reason thesystem is being allowed to settle down before the "definitive"
manual is issued.
2. We do not think it appropriate to automatise productionof the list of last issues scanned before a CINDA edition.
3. For as long as production of the CINDA books is not anentirely smooth and routine operation, it would be very helpful
if KDS would keep open longer the possibility of last-minutemodifications to introductory text, etc. Some imperfections
could be avoided in this way.
4. From now on CCDN expects a period of extreme austerity
as regards effort available for CINDA. NNCSC will have their hands
full setting up their CINDA system. We would like to ask NDS
and CJD for their co-operation in undertaking systematic
corrections to and completion of the file, even as regards
errcrs and omissions on which they would not normally expect
to work.
IV.

PROGRAM CHANGES DIFFICULT/IMPOSSIBLE FOR CCDN

1. Changes to feedback format other than to warning anderror messages. We have now made all those changes requested
by NDS which can be done reasonably easily within the structureof the CCDN system.

Appendix
page 5L

2.

Alphabetic energy notation.

3.

Changes to rules for update operations 'A' and 'B'.

k. The CCDN "internal" listing format, used also forcommunication with readers, cannot be altered, especially as
regards presentation of neutron energies, due to lack ofcore space on the CCDN computer. We would expect thischange to be relatively easy once CINDA is running adequately
in a paged environment on the 370/125. This would perhaps
make the feedback format more acceptable to NDS.
5. While an extra 14 characters is available within the
CCDN programs for extension of comments within a single
CINDA entry, overflow of the comment from one entry to thenext cannot be handled.
V.

MOPE GENERAL PROBLEMS WHICH CANNOT BE RESOLVED QUICKLY

1. The very close relationship between the CINDA programsand the manual controlling the content and format of input
makes it necessary to produce the two in parallel. Finalising(as far as ouch a thing is possible) the programs and therules (manual) is necessarily a slow business and both need to
be done by the same people. For this reason we have stressed
the need for the two centres responsible for maintaining master
files to have the last word in controversies about the coding
rules, and in particular for CCDN to produce the manual for
European readers. Because of manpower shortage, this process
cannot be done rapidly, and readers will have to live with atemporary manual probably until the end of 197*1.
2. For the same reasons, it is not always possible togive a rapid "yes-or-no" answer to NDS or other proposals.
3. In connection with maintaining the main CINDA file,
CCDN has to do a great deal of work which may be invisible
to NDS. NNCSC will shortly have similar difficulties of theirown. We ask for understanding of delays in satisfying requests
for even rather simple modification of programs : they will
be made as soon as they get to the top of the priority queue
which must exist for the programming effort available.
4. For reasons which have been discussed in correspondence,the computer coverage file lost towards the end of old system
operations has not been incorporated in the new system, but a
proposal ha3 been made for a separate "light-weight" system,
based on the references known to appear in CINDA and on what
can be recovered from the old ZZ entries available in the U.S.

- 75 -

Appendix

Report on WREJDA 74
Tenth Pour Centre Keeting
Paris, 6-10 May 1974

Charles Dunford
IAEA Nuclear Data Seotion

We request that the Meeting make decisions on the starred itemsin this report,

I.

GeneralWRENDA 74 was submitted to the printers, on schedule, on 15 April.

NDS wishes to thank the other centers, especially CCDH, for their cooperation.

Unfortunately schedules vere extremely tight because of

the delayed arrival of our staff member responsible for system development .

Country retrievals were mailed to the centers only at the endof November.

Despite this short period for review, most countries

replied and submitted revised request lists. The countries not replying
were Brazil, the German Democratic Republic, Hungary, South Africa,
Denmark, Bangladesh, and India.

Japan will review for 1975*

not clear whether the USSR list was reviewed or not.

We areUnfortunately

NDS was informed by M C S C only one month before the deadline that they
had made no arrangements to contact Canada concerning their requests.
This matter should be resolved.

NDS made an EXPRESS mailing to Dr. Cross

but received no reply. We intend to ask the I2TDC to endorse a policyof considering all requests from a country not responding to our request
for review of their WRENDA entries for two successive years as withdrawn.

WRMDA 74 contains 1190 requests for nuolear data measurements forfission reactors for 6^2 data types from 21 countries and one international organization.

The most significant ohanges to the list cameAppendix
page 2

M- 76 -

from the CCDN service area.

Attached you will find the request com-pilation statistics prepared "by CCDN.

No now entries were made forcountries in the NDS service area. I'o new entries were received fromthe US except for old requests which for various reasons were left outof previous editions of WRSNDA.

However, it should "be noted that the

US request list was completely revised for WEENDA 73*^DS made theentries for the UK and 3URAT0X in order to save time as these requests
were submitted well past the CCDN deadline.
The WRENDA status file was completely rewritten by NDS so that
only recently oompleted experiments and experiments in progress werementioned.

Ho "true" status reviews were prepared for this edition.

During 1974 the fusion and safeguards data measurement requests
were encoded in WRENDA format by NDS from their previous publications.
Revisions were made to the fusion file as a result of the recent publication of the UK Request List, and a few now Frenoh and West German
requests were added.

A revised safeguards list was to be publishedin 1974 but so far no revisions for that list have been received.
No new fusion list is planned for 1974-*

II.

Technical Matters

A.

CCDN - No basic problems were encountered in processing the entries

prepared by CCDN.

All questions of content of revised requests wereolarified except for one KPK request.

Some minor stylistic problems

were encountered but as NDS had not suggested any uniform style forentering requestor-names and for text-comments, this was not surprising.
B.

NNCSC - The problems encountered with the entries prepared at

NNCSC were more serious.
throughout the file.

Several format errors occurred consistently

The WREflDA 74 input from area 1 was produced bya oomputer programme,which contained some errorsjfrom the NNCSC request
format (which is similar to

TOMDA).

In addition, several special flags

which oontain useful information were not translated into comment cards.

- 77 -

Appendix M
page 3Many requests ware separated into several requests where imultiple
requestors or multiple accuracy ranges existed.

We felt that if such

requests remained separated there would be unwarranted repetition of
information and an unjustified inorease in the size of WRENDA.
For these reasons and "because the style of the comments required
rewriting in many oases, it was deoided to update the entries in
WREOTA 73 instead of replacing all US entries with the NNCSC transmission.
The numbering of requests was ohanged to agree with the NNCSC identification numbers.

Where multiple US requests were merged into one, thenumber corresponding to one of the separate requests (usually the firstone on the transmission tape) was used,C.

CJD - No transmission.
Attached you will find the latest list of dictionaries not con-tained in the WRENDA 74 publication inoluding the highest request ID
numbers assigned by area and year (Attachment II).

III.

Stylistio Matters

A.

Since we are trying to introduoe some editorial unity into the

document we have eliminated all non-universal abbreviations particularly
those of a computer-like nature}

all statements should end with a period;

all new statements should begin in ooluran 20 and all oontinued statements in oolumn 22,
B.

Ve have used EXPOR-CINDA laboratory codes where they were available.

The distinotion between ACR, LMF and AEC has no meaning outside the US
and so we have used AEC for all. Also the oodes GE, WAR and LLL wereconverted to OEB, OEC, WEtf and LRL, to agree with the EXFOR-CINDA codes.
C.

We have including-the initials of a requestor in his name as

P.S.HEMMIG,
file.

In the future input vill be oheoked against our addressApnendix M
Page H!D.

- 78 -We have used "blanks instead of 0,00+0 in the energy fields,
We request that the 4 Centers aocept these four guidelines.

IV.

Computer Programmes
In the past six months, we have ooxnpleted several computer pro-grammes to operate on the WRENDA file*programme remains inoomplete.

Only a rather general retrieval

All programmes are written in PLl for OS.

Perhaps only CCDN is interested in reoeiving these programmes, however
NDS is willing to supply them to anyone interested.

The programmes arei

1.1

Edit input-cards for WRMDA Request Pile.

1.2

Update WRMDA Request Pile.

2.1

Edit input-cards for WRENDA Status Pile.

2.2

Update WRENDA Status File.

3.1

Merge Request and Status Master Piles to produce listingfor WRMDA book production.

4.1

Match Request and Status Master Files, produoing anintermediate file.

4.2

Produce WRENDA Country Retrieval.

5.1

Prepare input-format records from Request Pile, forlisting or copying to tape.
Prepare input-format reoords from Status Pile, forlisting or oopying to tape.

5.2
6.1

Modify the Request Master File (e.g. replaoe a la"b-oodeoonsistently throughout the file;,

7.1

Table-listing programme.

Notei

A standard IBM Merge/Sort programme is used throughout thesystem.
For further details see the attaohed summary (ill).

- 79 -

Annendix M
page 5V.

FutureA,

Within the next few weeks NDS will send to all oentera a tapecontaining the following six files in "input format"!
WREN2A 74 request file
WRENDA 74 status file
Fusionrequest file
Fusionstatus file
Safeguards request file
Safeguards status file*B.

We reoommend that NDS provide oountry retrieval listings only

for countries in its own servioe area, the USSR and Canada in the
future.

Whether the present three oopies or less are desirable should

be decided at this meeting.

It would seem unnecessary to give the USa country retrieval listing as they have their own internal file andreview procedures.

It also seems wasteful to have to transmit themasses of paper to CCDN who must in turn retransmit it.

If our"sountry retrieval" programme can "be made operational at CCDN andthey are willing to prepare the "oountry retrievals" themselves, theoperation would be more effioient.

In any case if this suggestion

is not acceptablef NDS will prepare whatever retrievals each center
requires.
*C,

It appears that we may have created a too cumbersome method forhandling the annual update of the WRE2TDA file. Now that the long
delayed review has been completed with the resulting large number ofohanges required, we expect that much less effort will be required
to produce future editions of WRENDA.

I suggest that NDS assume therosponsibility for enooding all new requests or modifications to oldrequests.

CCDN and CJD would transmit the modifications written on

the country retrievals. New requests oould be submitted on forms
l:.ke attachment IV. NNCSC would send a list of all new or modified
roquests'sinoe the previous edition of WRENDA.

In this way the work-

load for the other oenters will be reduoed and uniformity of styleb«i assured.

Appendix
page 6

D.

M- 80 -

Several of the countries in the CCDN service area have failed

to use the "country retrievals" for update of their WRSNDA entries.
This has added unnecessarily to the work required of that center.

We

shall mention this problem at the next IKDC Meeting and suggest thatin the future care should lie taken to submit WRENDA requests in theagreed manner.

If the "country retrieval" method is inconvenient}then the IUDC might suggest an alternative method.

3.

Determination of the appropriate request "status" flag is often

impossible with the information supplied by the oountries.

If theIKJDC wants a simple system then we should use only the following
categories in the WREN'DA book:no flag? revised or new.

The distinction between satisfied and withdrawn requests has
not been consistently maintained.

We shall suggest that all deleted

requests be carefully categorized or we should drop the distinction.

-I.

WRENDA STATISTICSInWRENDA
'73
(1)

-

8] -

Appendix
page 7CCDN AREA

Not
alteredAlteredFulfilled

Withdrawn

New

(2)

(3)

(4)

In
WREN3A'74(D+(4)-(2)-(3)

5

2

25

1

6

-

3

-

1

-

3

22

8

-

-

14

-

8

Switzerland

10

4

5

1

-

-

9

Finland

4

-

-

-

4

-

-

Germany

150

19

53

1

77

11

83

Sweden

46

11

8

-

27

11

30

France

289

11

136

-

142

160

307

U.K. *

67

51

11

3

2

7

69

EURATOM *

19

-

-

-

19

25

25

643

104

221

7

311

215

540

Belgium

32

Netherlands

4

Italy

ENTERED BY NDS IN 1 9 7 4 .

Appendix
page bM- 82 -

II

Highest WRENDA File Request Numbers

As of the publication of WRENDA 74, the highest assigned
request numbers by year and area aret
Year .

1962

63
64
65
66
67
68

69
70
71

72

73
74

A r e ai

l

2

3

58
5
-

—

89
6
-

8

113
203
-

-

7
1
74

470
50

497

78
145
-

124
151
120
111

81

4
«•

mm

mm

mm

23

52

45
-

Appendix M
page 9TABLE 1PARTICLE TA8LE

10 ENTRIES

(A)-

(B)

000
001
002

SPONTANEOUS
GAMMA
NEUTRON
PROTONOEUTERON
T R I TONHELIUM-3
ALPHA
LITHIUM-6

003
004
005

0 06
007

ooe

(c)
GAMMA
N
P

D
T
HELIUM-3
ALPHA
LITHIUM-6

999

(A):

Internal numerical code

(B):

This name is used when the projeotile name appears alone
in a report(c):This name is used in the construction of oertain wellknown quantity names, e*g* (N,P).

(D)»

Code used on input forms*

0
G
N
P
O
T
3
A
LI6
MISC

Also note:
Miscellaneous quantities like "decay heat1*. These are input simply
as "MISC".

Appendix M
page 10TABLE 2QUANTITY TABLEAt

ENTRIES

(A)
0010
0020
0040
0100
0200
0220
0300
0370
03*0
0360
0400
0500
0320
0600
0650
1000
1100
1150
1200
1900
1920

(B)
LEVEL DENSITY PARAMETERSOISCRFTE LFVEL STRUCTURE IENERGY, S P I N , PARITY)
HALF L I F E
TOTAL CROSS SECTION
ELASTIC CROSS SECTIONOIFFEBENTJAL CLASTIC CROSS SECTION
INELASTIC CROSS SECTIONANGULAR DIFFERENTIAL INELASTIC CROSS SECTIONENCHGY DIFFERENTIAL INELASTIC CROSS SECTIONOOUOLE DIFFERENTIAL INELASTIC CROSS SECTIONTHERMAL SCATTERING LA*
TOTAL SCATTERING CROSS SECTION
DIFFERENTIAL TOTAL SCATTERING CROSS SECTION
NON-ELASTIC CROSS SECTION
ABSORPTION CROSS SECTIONCAPTURE CROSS SECTION
ENERGY DIFFERENTIAL CAPTURE CROSS SECTION
DELAYED GAMMA SPECTRUM
PHOTON PRODUCTION CROSS SECTION I N INELASTIC SCAT*TOTAL PHOTON PRQOUCTION CROSS SECTIONTOTAL GAMMA RAY YIELD

2000

•••

20.10
2100
2200
2900
2970
2930
3000
3030
3100
3900
«000
41OO

•••
.N NEUTRON SPECTRA
•••
.2N
•••
,3N
NEUTRON EMISSION CROSS SECTIONTOTAL NEUTRON YIELDOELAVED NEUTRON YIELD
•••
tP
•-•
.*» 0ELAY6O NEUTRON YI6LD• *•.NP
TOTAL PROTON PRODUCTION CROSS SECTION
• «•
.D
*••
.NO

5000
5IOO

•••
•••

5000
7000
7100
7130
7900
V000
9010
9100
9150
9lftO
9200
<>220
9230
92*0
9260
9280
9300
9360
9*00
9«5O
9900
9920
9940
9960
9999

•••
.HELIUM-3*••.ALPHA*••.NALPHA•••.N3ALPHATOTAL ALPHA PROOUCTION CROSS SECTIONFISSION CROSS SECTIONSFCONO CHANCE FISSION CROSS SECTIONCAPTURE TO FISSION RATIO(ALPHA)
NEUTRONS EMITTED PER NEUTRON ABSORPTIONCETAJNEUTRONS EMITTED PER NON-ELASTIC PROCESSNEUTRONS EMITTED PER FISSION(NU 8A«M
DELAYER NEUTRONS EMITTED PER F I S S I O N
PROMPT NEUTRONS EMITTEO PER FISSION
INFORMATION ON NEUTRONS FROM A FISSION FRAGMENT
ENERGY SPECTRUM OF FISSION NEUTRONSENERGY SPECTRUM OF DELAYED FISSION NEUTRONSSPECTRUM OF PROMPT GAMMA RAYS EMITTEO I N FISSION
DELAYED GAMMA SPECTRUM FROM FISSION PROOUCTSFISSION PRODUCT MASS YIELO SPECTRUM
INFORMATION ON KINETICS OF FISSION FRAGMENTSRESONANCE PARAMETERS
ABSORPTION RESONANCE INTEGRALCAPTURE RESONANCE INTEGRA!.
FISSION RESONANCE INTEGRAL
MISC

.N

,T
.NT

(e)
LOP
LON
HL
TOT
EL
EL«0A
INL
INL.0A
INL.OtINLaCA/OC
THSSCTSCT .OA
NON
AU5
G
O.DE
G.DEiOLING
GEM

GFNiYLO
N

N.OE
2N
3N
NGM

NEM.YLON£M,TLD«DL•»
P.YLO.DltN
NP
PEN
D
NO
T
NT
3
A
N/
N3A
AE1
F
N*
ALf
ETn
NON/ETAHU
NU..DL
NU..PR
NU'aFP

NU.OE
NU.OE«DL

F.OE.,0F.SPC«0L<0
F.YLO
RES
ABSiRI

G.RI
F.KI
"ISC

(A)t

lniam«l nu««rloal ood*(B)lQuantity man For cartaln naotlona,*.g. (»,P), tlM quantity nan laoonatruotad ualnf tlM projaotlla naaa
fraa taM* 1 ooluan C, and thla f u l l .
3uoh raaotlona ar« danotad ay tha thraa
Mtarlaka, l . a . "•••".

(0)l

Cod* aaad on Input forma.

Alto notat
lfuolaar atrootura raaotlona (r«aotlona with• quantity lntanwl nuaarleal ooda of laaa
than 100). Thaaa ar« Input ualng a projaotlla•oda of "V.

- 65 -TABLE 3
COMPOUND TABLE
(A)

(B)

100
200
250
300
400
500
900

HYD
WTO
D2O
CXX
OXI

STX
CMP

Appendix M
page 11

7 ENTRIES(c)
HYDRIOEWATER
HEAVY WATERORGANICOXIDESTEELCOMPOUND(A)»

Internal numerical code

(B)I

Code used on input forms(c)iCompound name

TABLE 4
APPLICATION TABLE 15 ENTRIES
(A)
(B)
F
FUSION.
FAFUSION, REACTOR PHYSICS.
FBFUSION. SHIELDING.
FCFUSION* RADIATION DAMAGE.
N
SAFEGUARDS.
NA
SAFEGUARDS. ACTIVE ASSAY.
NB
SAFEGUARDS. PASSIVE ASSAY.
NC
BURN UP DETERMINATION.
R
FISSION REACTORS.
RAFISSION REACTORS* CORE PHYSICS.
RB
FfSSION REACTORS. SHIELOING.
RC
FISSION REACTORS. DOSIMETRY.
RDFISSION RFACTORS* RADIATION DAMAGE.
RE
FISSION REACTORS* STANDARDS*SSPACE*(A)i

Code used on input forme(B)I

Application

X)

Ill Summary of Current Wrenda Programs

a>3

aRun 1:

changecards»Update Wrenda Request File

INPUT
EDIT
PGM.

EDITED
CHANGESSORT[1]SORTED
CHANGESUPDATEPGM.
00
ON

ERRORS,LISTS, ETC

Note:
2 programs- Input Edit
- Update(can run alone as an input check program)[1] By Request
number

Run 2:Update Wrenda Status Filesame as above except sort transactions by ZAQ

2 programs - Status Input Edit
- Status M/P Update

Run 3s

Produce Wrenda Report

REQUEST
Vi/F

SORT

[1]

SORTEDREQUEST
M/Poo

Fote: [1] By ZAQ

1 program: - Merge Request and Status M/F's and produce WRENDA.
n
to

n3
a

h-1

X

Run 4:

Produce Wrenda Country Report

SORT

[1]

SORTEDREQUEST
M/P

MATCH BYZAQ

MATCHED
PILE

SORT

[2]

SORTED
MATCHED\ PILE

COUNTRY
RPT PGM.

oooo

COUNTRYREPORT^

Notes: [l] By ZAQ[2] By Country Code
2 programs- Match Request and Status M/P's- Produce Country Reportthen ZAQ

- 89 IVNUMBERt

Form f o r Nev WRENDA Requests*

COUNTRYi
REQUESTOR(S)i

TARGET»

INCIDENT PARTICLEi
QUANTITYi
INCIDENT ENEROYi
ACCURACYi:?RIORITYi
APPLICATION!

QUANTITY COMMENT(S)i

ACCURACY AND RESOLUTION COMMENT(S)i

OTHEB COMMBNT(S)|.

To be assigned by Data Centers only*

Appendix M
page 15

Appendix- 90 -N

List of Actions Arising from the Tenth Four-Centres Meeting
Action No.

On

Text

All

Send before 31 July a list of experimental data compiled but not yet
transmitted in EXFOR format to theother centres.

All

Centres having received specialisedcompilations in any format should signal
their existence to other centres.

NDS

Bring to the attention of the INDC the
problem of translating voluminous Soviet
Nuclear Data documents such as the CJD
Bulletin (Jadernye Konstanty) into
English.

CJD

Investigate the possibility of including
English abstracts to articles in CJD
Bulletin, o_r of sending them to the IAEA
for translation, and to include English
keywords. Also provide number links
between the Bulletin articles and theirabstracts.

All

Initiate contacts with groups compiling
non-neutron data in order to investigate
the possibility of using existing formats
for their compilation.

CCDN

Send data sets to CJD as often as
requested if the data are only available
in NEUDADA format.

NNCSC

Send to other Centres list of data setsneeded for new edition of
BNL-325, Vol. II.

- 91 Action No.

On

Appendix
page 2

N

Text

NDS
CCDN
CJD

Include data sets to be used by NNCSC
for new edition of BNL-325, Vol. II
into EXPOR without delay.

NNCSC

Send remaining "SCISRS lfc" data converted to EXFOR, as well as index, toother Centres before 31 July.

10

CCDN

Subdivide long NEUDADA tapes for CJD
into several smaller files in orderto make read errors at CJD lesstroublesome.

11

NNCSC
CCDN
NDS

Requests from Konshin (Minsk) for
experimental data not available at CJD
should be answered as follows :tapes to be sent to CJD for conversion
to punched paper tape as used at Minsk;
listings to be sent directly to Minsk.

12

N. TUBBS

Communicate to all Centres findings oncompatibility between CINDA and the
Nuclear Data Project Reference File, andon INIS/CINDA comparison being prepared
for the Varna IAEA Symposium on
Information Systems.

13

NNCSC

Distribute final LEXFOR formulations ofpoints mentioned in Memo. Mc-3/97, andrevise LEXFOR entry on Polarization.

NDS

Prepare LEXFOR entry on experimental
methods for determining Fission Product
Yields.

NNCSC
V. MAY

Prepare EXFOR manual pages for
multidimensional tables before 31 July.

15

Appendix
pa'-e 3

- 92 -N

Text

Action No.

On

16

CCDN

Prepare LEXFOR entry on Standards
for FiBsion Yields and an example ofcoding Delayed Neutron Precursor Data.

17

NNCSC

Prepare LEXFOR entry on Multilevel
Resonance Parameters.

18

NNCSC
V. MAY

Include an implementation scheme for
new EXFOR features in the EXFOR manual.

19

All

Check the completeness of :a) EXFOR and CINDAb) EXFOR versus CINDA for important
reactor material iso-quants. Gaps
in EXFOR and CINDA should be filledwith top priority, particularly
those listed in 4C-3M8 (Jan. 1972).

20

All

Circulate Bhat's proposal for gammaray spectrum quantities to experts. Give
examples of coding such data using
extended EXFOR possibilities.

21

CCDN

22

NDS

Revise warning and error messages in
CINDA feedback listings, and ensure thatno undue rejection of input occurs, before
31 August.
Prepare a Four Centre proposal for a
new quantity sorting order for the
CINDA publication.

23

NNCSC

Submit a proposal on indexing numericfiles in CINDA reflecting the discussions
within the USNDC.

All

Send suggestions for Introduction to
CINDA's next supplement to LEMMEL before
30 September. A brief introduction for the
beginning of the supplement, further detailfor the end.

- 93 -

Appendix
page HN

Action No.

On

25

All

26

N. TUBBS

27

CCDN

Supply NNCSC with all documentation
on CINDA necessary for their taking
over U.S. CINDA operations before 30 June,

28

NNCSC

Check the correspondence of Lab. andRef. codes in EXPOR and CINDA
dictionaries.

29

ALL

Requests from other centres should be
acknowledged within a few days of receipt
giving a detailed status for each request
including "no data available" ifapplicable (previous request No. 11*).

30

ALL

Inform the other centres when initiating
a data review or special-purpose
compilation, so that appropriate data
may be transmitted with preference,(previous request No. 12*).

31

ALL

Prepare "delinquency lists" containing
all authors who, after repeated request,
do not submit their data to the data
centre. These lists should be presented
to appropriate bodies (national orinternational nuclear data committees)

*)

Text
Propose criteria for reducing thesize of blocks in the CINDA publication.
Issue an updated CINDA Manual by endof August.

cf. Report on the Ninth Pour-Centre Meeting, INDC(NDS)-5VG,
1973, p.97

Appendix
page 5N

Action No.

On

Text
who can stimulate the authors torelease the data. Centres should
continue to prepare "NODATA" EXFOR
entries in such cases.

31(Cont/d)

32

NDS

Ask the INDC to support Dunford's
recommendations (Appendix M) that- all requests from countries which
do not review them for two successive
years should be considered aswithdrawn,- reviewers should use the country
retrievals for updates,- the distinction between fulfilled
and withdrawn requests should be
dropped unless all countries specify
which is the case when they delete
requests.

33

NDS

Modify WRENDA layout following
suggestions received in time for
WRENDA 75.

ALL

Provide display boards (one per centre)
explaining available services for
exhibition at the Washington Conference,