6 0 I g3 6International Atomic Energy Agency

INDG(NDS)-71

Distritnition: L+N

I N

DC

INTERNATIONAL

NUCLEARDATA

COMMITTEEof theConsultants' Meetingor.
Charged Particle Nuclear Data (CPND) Compilation

Vienna, 8-12 September 1975

Edited "byH.S. Lemmel

January 1976

IAEA NUCLEAR DATA SECTION. KÄRNTNER RING 11. A-1010 VIENNAThis document, INDC(NDS)-71, i s a summaryof the document IÏÏDC(NDS)-69.

Reproduced "by the IAEA in Austria
March 1976
76-1347

níDC(NDS)-71
Distribution: L+N

Summaryo~f~TheConsultants' Meetingon
Charged P a r t i c l e Nuclear Data (CPMD) Compilation
Vienna, 8-12 September 1975

Edited "by
H.D. Lemmel

January

-

i

1976

-

The IAEA Nuclear Data Section convened, a Consultants'
Meeting on Charged Particle Nuclear Data Compilation,
Vienna, 8-12 September 1975The main results of the meeting were:
An agreement was reached for an international cooperation
effort,coordinated try the Agency's Nuclear Data Section, on
the compilation of charged particle induced nuclear reaction
data, which gain increasing importance in various industrial
and scientific applications in both developed and developing
countries. The primary participating data centres are at Karlsruhe, Fed. Rep. of Germany, and at the Kurchatov I n s t i t u t e ,Moscow, USSR, and other centres in Japan, U.K., U.S.A. and at
NEA will contribute with data compilation or distribution services.
The cooperation i s based on the experiences gained from theinternational exchange of neutron nuclear data, and the same orsimilar computerized exchange systems (EXFOR) will be used. The
role of the Agency's Nuclear Data Section had to be kept, due
to manpower restrictions, at the minimum required level of coordinating and data dissemination functions.
The complete Minutes of the Meeting are included in the
document INDC(NDS)-69 which i s available, upon request, fromthe IAEA Nuclear Data Section. Of t h i s document the following
pages are included in the present summary document:

5-6

Introduction

7-8

Agenda9
23-29

List of Participants
Conclusions and Recommendations(The page numbers were left the same as in INDC(NDS)-69.)

- ix

-

INTRODUCTION

The p r e s e n t meeting was a s u c c e s s o r t o t h e IAEA C o n s u l t a n t s 'Meeting

on Charged Particle and Photonuclear Reaction Data held in Vienna
24 - 26 April 1974 [ l ] -This earlier meeting, considering the needs forcharged particle and photonuclear reaction data, 'iocurnented in ref. [ 2 ] ,concluded:"that the very valuable services provided by the existing centres
and groups could be usefully enhanced by establishing a coherent
international cooperation in the compilation, evaluation and disseminationof these data.

This cooperation viould require a free international

exchange of experimental as well as evaluated data between the centres
and groups concerned."
The International lluclear Data Committee considered the topic at i t sseventh meeting in October 1974 and concluded [ref.

3, recommendation 2.¿Q'"The Committee values the activity of the existing "non—neutron" nuclear
data contres and groups and judges i t important to continue this work,in most cases with increased support.

I t asks IAEA and i t s member

states to support the above activity, especially the international
coordination of this work and the exchange of appropriate"non-neutron"
nuclear data and references, by continuing to convene meetings of"non-neutron" nuclear data centres and groups."
Since then, come essential steps towards an international cooperationin charged-particle nuclear data compilation have been made:The charged-particle nuclear data group at Karlsruhe i:ad preparedsample entries of charged-particle reaction data compiled in a format close
to Exfor,a system which had been developed by the four neutron data

centres for the exchange of neutron nuclear data [ 4 ] .

The modified KXFOR

system as proposed by Karlsruhe had meanwhile been reviewed by the four
neutron data centres at their March 1975 meeting [ 5 ] .

Also the Nuclear

Data Centre at the Moscow Kurchatov Institute submitted sample entries in
the format of the Karlsruhe Exfor system.

Furthermore,a study groupin Japan has recently developed the prototype of a Nuclear Data P i l e .
In the USA, the National Neutron Cross-Section Center has assumed responsibility
for coordinating the US activities on charged-particle nuclear data withsimilar activities abroad.

On the basis of the conclusions of the 1974 Meeting and of the development
which took place since then, t h e present meeting was the f i r s t to discuss technical d e t a i l s on an i n t e r n a t i o n a l cooperation and exchange of charged-particle
nuclear data.
[i]

Summary Report on the Consultants' Meeting on Charged P a r t i c l e and Photonuclear Reaction Data, 24-26 April 1974, Vienna, INDC(NDS)-59, IAEA., Vienna,
June 1974. For the papers submitted see INDC(MDS)-61, IAEA, Vienna, J u l y 1974.

[2~\ Symposium on Nuclear Data i n Science and Technology, Paris 1973,
Proceedings IAEA, Vienna, 1973, and:A. Calamand: Survey of current and future needs for charged p a r t i c l e and. photo-nuclear reaction data, INDC(NDS)-62.
[3]

Official Minutes of the Seventh INDC Meeting, Lucas Heights t 7-11 Oct. 1974,
IMDC-18, IAEA., Vienna, 1975.

[4]

OSA National Neutron Cross-Section Center, NEA Neutron Data Compilation Centre,
IAEA Nuclear Data Section, USSR Centr po Jadernym Dannym: EXFOR Manual,i n t e r n a l distri/bution.

C5]

Report on the Eleventh Pour-Centre Meeting, Brookhaven, National Laboratory, USA,IO-I4 March 1975, INDC(NDS)-68, IAEA, Vienna 1975.

Consultants' Meeting

JBB
Charged Particle Nuclear Data fCPND) Compilation
Vienna, 8-12 September 1975
AgendaI.

Brief review of current and planned CPND compilation activities
Bibliography, Compilation and Evaluation of CPND
— Specific user needs;— Scope, content and format;— Publications and services.

H.

Hatters of technical cooperation
A.

Bibliography
1. Eperience gained from the use of "Recent References", as far as
related to CPHD; any changes desirable?
2. Who compiles what where?
- Continue centralized input?
- Start coordinated input from different Centres and Groups?
• - Practical details for coordinated input.
3. Publications and services.

B.

Compilation and Exchange of CPND
1. Principle decision whether a format close to the "neutron data EXPOR"is acceptable, mutatis mutandis, for CPND.
2. Scope and distribution of work between Centres and Groups involved.
- Targets, projectiles, reactions, quantities;- Experimental, deduced, interpolated, theoretical data,
thick target yields;- Selective versus comprehensive compilation;- Distribution of work defined by physics criteria (excitation function,
angular distribution, etc.) and/or geographical origin of data;- Possible future extension of the scope (heavy ions?).
3. Technical details, contents and format.
- Numeric information;- Bibliographic and experimental description;- Keywords, codes, retrievability (what is needed?)- What modifications to EXPOR are required?
- Codes for reactions and quantities;- Associated parameters (standard reference values, half-lives, etc.)- Accession-numbers.
4« Organization of cooperation.
- Mechanisms for exchange, compiler's and system manual, dictionaries
of codes and keywords, meetings;- Implementation schedule.

C.

Evaluation of CPHD
1. Scope;
2. Feasibility of cooperation;
3. Common method of evaluation:

D.

Service to users

H I . Review of actions, conclusions and recommendations from this meeting

Schedule;

Monday morning:
Monday afternoon:
Tuesday morning:
Tuesday afternoon:
Wednesday:Thursday morning:Thursday afternoon:
Friday:agenda item I
U.A. 1,2
U.A. 3
II.B.1,2
II.B.3
II.B.4 and II.D
II.C
HIList of Part i ci rorrts
Consultants
Mr. C.L. Dunford

National Neutron Cross Section Center
Brookhaven National Laboratory
Upton, L . I . , N.Y. II973, USA.

Mr. H. Munzel

Charged Particle Nuclear Data GroupI n s t i t u t für Radiochemie
Kernforschungszentrum Karlsruhe
Postfach 364O
D-75 Karlsruhe, Fed. Repub. of Germany

Mr. H. Ohrauna

Tokyo I n s t i t u t e of Technology
Dept. of Physics
Oh-Okayama, Kcguro-ku, Japan

Mr. L.Ii. Sokolovskij

Center for Nuclear Structure & Reaction Data of the
USSR State Committee on the Utilization of
Atomic Energy
I.V. Kurchatov I n s t i t u t e of Atomic Energy
Moscow, USSR

Observers
Mr. H. Behrens

Zentralstelle für Atomkernenergie Dokumentation
Kernforschungszentrum Karlsruhe
75OI Leopoldshafen, Fed. Repub. of fionnany

Mr. D. Brune

A.B. Atomenergi Sweden
Pack
S-611 01 Nyköping 1, Sweden

Mr. G. Ebel

Zentralstelle für Atonkcrnpnergie Dokumentation
Kemforschungssentrum Karlsruhe
75OI Leopoldshafen, Fed. Rep. of Germany

Mr. T. Kitagav/a (part—time)

International Institute for Advanced Studyof Social Information Science
Kyushu University
Fukuoka-Shi 812, Japan

Mr. J . Lange

Charged Particle Nuclear Data GroupI n s t i t u t für Radiochemie
Kernforschungszentrum Karlsruhe
Postfach 364O
D-75 Karlsruhe, Fed. Rep. of Germany

Mr. L. Lesea

Centre de Compilation de Données Neutroniqucs
B.P. no. 9
F-9II9O, Gif-sur-Yvette, France

IAEA Nuclear Data Section
Mr. A. Calanand
Mr. H.B. Lemmel
Mr. J.R. Lemley (part-time)
Mr. A. Lorenz (part-time)
Mr. K. Okamoto
Mr. J . J . Schmidt
Mr. M. Vlasov '(Chairman)(Scientific Secretary)

23
Concl.+Recom.

CONCLUSIONS AND RECOMMENDATIONS

User needs and data scope(Agenda items I, II.B.2)
Conclusions:
C 1. The need of various users for compilations of charged-particle
nuclear reaction data (CPND), in particular of integral CPND
cross-sections, has been assessed in earlier meetings. It isstrongly felt that the arguments given at these meetings stressing the importance of the compilation of such data, are stillvalid. Therefore, urgency should be given to corresponding
compilation efforts.
C 2. It is realized that for data applications primarily integral
CPND are needed, and such data should be given priority. Theinterest for differential CPND comes mainly from the researchcommunity.
c

3. In the present document, the term "integral CPND" is understood"to include- excitation functions for the formation of residual nuclei
in ground—state or metastable state;— thick target yield data;
both for targets with Z > 4 and projectiles of protons andheavier particles.

Beoommendationt
1. Within the field of CPND, the compilation and exchange of"integral CP1TD" should be given priority.

CPND Bibliographic System(Agenda item II.A)

Conclusions»
The meeting discussed various possibilities for creating aninternational CPND bibliography, and came to the following
conclusions:24
Concl.+Hecom.

C 4>

Since the USA offered to continue to maintain a worldwide CPND
bibliography, it is suggested that a new appropriate system ora revised form of an existing system be developed in tho USA,but that the following requirements expressed in the meeting
be considered.

C 5«

At present, there exist three nuclear data bibliographies! Cinda,
Recent References, Reaction List, which are partially overlapping. For each of them some modifications would be desirable
to make it suitable as an international CPND bibliography.

C 6.

If a Cinda—type system is used, more space for the reaction isneeded than in the neutron Cinda, in order to allow also forthe coding of heavy ion reactions. This means, that either thefree text comment field must be shortened to have more space forthe coding of the reaction, or that the system must be expanded
to more than one card per input record.

C 7-

If a Recent-References type system is used, input and file should
preferably be restricted to the standard BCD character—set, inorder to facilitate international exchange of the file. The labof data oripii should possibly be entered in retrievable form
using the Exior lab—codes. A feature for blocking different
references that refer to the same data set, is desirable such thata data—set oriented sort is possible. The data—type (experimental,
theoretical, evaluated) should be entered in retrievable form.

C 8.

In eithsr case, the following features are desirable:a) For charged-particle reactions, information should be enteredin retrievable form, indicating whether the reference considered
contains integral CPND or other data.
b) Publication in a compact handbook should be possible.
c) The system should be designed such that multilateral input ispossible as vieil as easy retrievals on a variety of computers.

C 9»

The new system should be capable of including, by machine conversion,
the old bibliography of the Reaction List and perhaps the relevant partof Recent References, even if these machine converted entries do not
fulfil all of the specifications of the new system (example: missing
lab. code).

C 10.

The feasibility of having a single bibliography system for all
nuclear data, including neutron data, should be investigated.

C 11.

It is desirable to investigate the feasibility of deriving a
nuclear data bibliographic file from a more general bibliographic
system, especially from INIS.

25
Concl.+Roconw
Recommendations:
R 2. The meeting appreciates the offer of the USA to continue toansuir.c the primary responsibility, in cooperation with otherdata centres, for a worldwide CPND bibliographic system. It
is recognized that the centre responsible for this systemshould decide on its structure, but it is recommended that thefollowing features be seriously considered when developing the
CPND bibliographic system:a) Publication of a compact handbook should be possible, whichshould be data-^spt oriented rather than reference oriented.
Action2.

b) Publication of such a handbook for "integral CPND" only
should be possible.
c) A cumulative publication including earlier CPND
bibliographies should be possible.
d) The coding of the CPND reactions should allow for heavy—ion
reactions; retrievals should be possible for target nuclei,
incident particles, outgoing particles and residual nuclei.
e) The input and the master file should employ the standard.
BCD character set.
f) Entries should contain the laboratory of data origin using
the Exfor lab-codes.
R 3«

It is recommended that CAJaD and a Japanese center regularly
provide input to the CPND bibliographic system for the Russianand Japanese language publications. This input should havethe general form of Recent References, until such time that
the USA in consultation with the cooperating centers determinesthat another input format is needed.

R 4»

Priori-ty should be given to the coverage of journals. It should
be investigated "how many important data sets are published onlyin laboratory—reports or conference-proceedings. Depending on
the outcome of such investigations, such literature should
eventually be included in the CPND bibliography.

R 5-

The bibliographic information should be freely exchanged, andthe master file should be easily accessible by all cooperating
centres and groups. The centre in charge should send, in regularintervals (e.g. every six months), an update tape of the CPND bibliography to the Karlsruhe CPND group and to CAJaD, and to other cooperating centres upon request.

Actions
6.+7.

R 6.

It is recommended that ZAED and NDS investigate the feasibility ofderiving input for a nuclear data bibliographic file from a moregeneral bibliographic system, especially from I M S .

Action8.

R 7«

The meeting recommends the publication of a cumulative bibliography
to "integral CPND". Later cumulative publications should be envisaged at two-years intervals. NDS and ZAED should investigate
the technical possibilities for such publications based on a computer file provided by the USA. A draft of the bibliography should
be submitted to the cooperating centres for discussion..

Actions

3.+4.

Action5-

R 8. The published bibliography should include information on evaluatedintegral CPND, but references to experimental and evaluated da.ta
r.ust be distinguishable.

26
Concl.+Recora.

Compilation and exchange of CPND
(Agenda item B.2)
The meeting discussed the scope and distribution work between the
CPND compilation groups and came to the following conclusions:C 12. The meeting recognizes the value of past compilation activities andurges the continuation and possibly the expansion of these activities.
In particular, the efforts of the Karlsruhe CPND group for a systematiccompilation of "integral CPND" in the Exfor format is recognized as
most valuable. The recommendations of this meeting are based on theassumption that the Karlsruhe CPND group will maintain the Master
Data File for "integral CPND", which would be the core of an international network of CPND compilation and exchange.

Recommendationn:
R

9-

Existing CPND compilation activities should possibly be expanded.
They should continue within an international coordinated effortof CPND compilation and exchange. All CPND should be freely exchanged, and the computer files should be easily accessible by
all cooperating centres and groups.

R 10. The Karlsruhe CPND group should maintain the CPND Master Data File.
Data compiled at other centers should be sent to Karlsruhe for updating the Master Data File. The Karlsruhe CPND group should makeavailable to the cooperating centres either copies of the entire
Master Data File or copies of update tapes.
R 11. a) The Karlsruhe CP1TD group should continue to compile "integral
CPND" except as noted below.
b)

CAJaD should compile "integral CPND" produced in the USSR.

c) The USA Center should compile "integral CPND" from USA and
Canada in the case that such data cannot be compiled directlyfrom published literature, and should make such data available
upon request.
Action9.

R 12. Pertinent groups in Japan as well as interested groups in othercountries should investigate the feasibility of participatingin the CPND compilation effort.

See also the related
actions 10.-12.

27

Cone 1. -ri; •? con.

The CPND Exchange Format(Agenda item II.B.l)
Conclusions:
C 13« The Karlsruhe CPND group and CAJaD had prepared trial compilations of integral CPND in a modified Exfor format whichwere discussed 'by the four neutron data centers, and at thepresent meeting. It was concluded that a modified Exforformat provides suitable means for the international exchangeof CPND.
C 1 4 . T h e investigations of the Japanese Study Group have indicatedthe desirability and the feasibility of creating a CPND Filewhich would be used by nuclear physicists in the field o f basic
research as well as for applied purposes.
Recommendations;
Actions13.+14.

R 13.

A modified Exfor format should be used for the exchange o f CPND.

R 1 4 . The Japanese Study Croup should continue its effort; thesystem to be developed should be operated on a long-term basis;
it should be developed with due consideration for participatingin the international CPND exchange.
F o r detailed agreements

about the CPND Exfor system see page 3 1 .

Organization of exoneration(Agenda item II.B.4)
Conclusions:
Action20.

C 15. Generally, the mechanisms of data exchange as developed forneutron data, are adopted.
C 16. In general, the rules contained in the Exfor Manual for neutron
data will apply, but an addendum will be needed for special
rules required for CPND.

Action19.

C 17«

The cooperating CPND centres are included in the update andexchange system of Exfor dictionaries.

P8
Concl.+Reoom.
Recommendations:

ActionR

15. The IAEA should continue to coordinate the activities of CPÎID
centers and groups, and should continue to convene, at regularintervals, consultants meetings between representatives of thecooperating CPIID centers. Copies of bilateral correspondence on
CPND compilation and exchange should be sent to NDS.

R

16. NNCSC should continue to maintain the Exfor Manual for neutron
data; NDS should produce an addendum to it for CPITD. NDS should
maintain the Exfor dictionaries for neutron data and CPHD.

19-

CPITD
evaluation===============(Agenda item II.C)

C 18.

Conclusions:
CPND evaluation has been discussed. A detailed discussion ofevaluation methods appears to be premature, but should be reconsidered at some later time.

C 19.

The purpose of CPND evaluation is to give users recommended
values for the quantities they are interested in. Any methodof obtaining such recommended values is included in the term"evaluation". The users should be supplied also with information about the reliability of the data.

C 20.

Evaluated CPND can be included in the CPND Exfor file in sucha way that they can be readily distinguished from other typesof data. It is however recognized that Exfor is not suitable
for a comprehensive evaluated CPND library similar in concept
to E N D P / B .

C 21.

It was noted that a generalized BNDP format suitable for all
nuclear data is being discussed in the USA.
Recommendationsj

Action21.

R 17«

Existing CPND evaluations should be distributed to the othercenters, in any suitable form but preferably on magnetic tape,along with adequate documentation.

R 18.

Interested centers should send to NNCSC comments on a
generalized ENDP/B system to "tie developed. (See Annex 13-)

29
Concl.+Recom.

Services to users=sa==~===: =s===—=====(Agenda item II.D)

C 22.

C 23.

.Conclusiors:.For integral CPIJD data a large user community prefers to havea handbook with data on their desks. In addition there willbe the need for computer retrievals from the computer f i l e ,in order to have more up-to-date information.
In addition, specialized CPHD publications may be needed.
NDS i s considering the needs for publishing a specializedcompilation of CPND required for nuclear fusion development.

Recommendations 8R

1 9 . The Karlsruhe C-^ND group should continue to publish compilations
on "integral CiTíD".

R

2 0 . The following'centres should provide computer retrievals fromthe CÍND Exfor Library to the respective service areas;
NUCSC to USA e.nd Canada
CAJaD to USSR
2AED

to F.R. of Germany

NDCC to other European OECD countries and to Japan
NDS

Action11.

to its service area as defined within the neutron datacooperation.

2 1 . The compilation of specific data required for specialized
Publications, e.g. on C^ND for fusion, should be given Priority.