International Atomic Energy Agency

INDC(NDS)-59/W+Special

I N

DC

INTERNATIONAL

NUCLEARDATA

COMMITTEE

Summary Reporton theConsultants' Meetingon
Charged Particle and Photonuclear Reaction Data
24-26 April 1974, Vienna

Edited by
A. Calamand
Nuclear Data Section

Vienna, June 1974

IAEA NUCLEAR DATA SECTION, KARNTNER RING 11, A-1010 VIENNAINDC(UDS)-59/W + Special

Summary Reporton theConsultants' Meetingon
Charged Particle and Photonuclear Reaction Data

24-26 April 1974, Vienna

Edited by
A. Calamand
Nuclear Data Section

Vienna, June 1974

Table of Contents

pages
Forewordiii-iv

Status, Conclusion and Recommendations

1-5

List of Participants

7-8

Agenda9

List of documents presented at the meeting

11-12

Foreword

The reasons for convening a Consultants1 Meeting on Charged
Particle and Photonuclear Reaction Data are closely connected withthe overall development of international cooperation in thecompilation, evaluation and dissemination of nuclear data and arebriefly outlined below.
The interest of the International Atomic Energy Agency (IAEA)
in nuclear data started in the early sixties with the establishmentof the International Nuclear Data Scientific Working Group (INDSWG).
which was later consolidated as a continuing advisory body with thename International Nuclear Data Committee (iNDC). Upon recommendationof INDSWG, the Nuclear Data Section (NDS) was formed in I964; it
implements- the nuclear data programme of the IAEA and also acts as
secretariat of the INDC.
Since then, the activities of the Section have been mostly
related to neutron data whose compilation and evaluation are essential
to fission reactor design and development. International cooperation
was successfully established and has led to the present fully
operational Pour Neutron Data Centres network *.
During the same period, the application of nuclear techniques
has witnessed a tremendous development in many fields of science andtechnology. This development requires many more nuclear data, inparticular non-neutron nuclear data. The general situation in thisfield was first surveyed in 1970 by an Agency Consultants1 Meeting
which led to the creation in 1972 of the International Working Groupon Nuclear Structure and Reaction Data (IWGNSRD). This working group
was efficient in assessing data needs in various fields of applications,in reviewing the existing compilation and evaluation activities, andin assisting the Agency in the preparation of the Symposium on
Applications of Nuclear Data in Science and Technology which wasconvened in Paris in March 1973* The Symposium demonstrated, among
Dther things, the broadened requirements of nuclear data users and the

National Neutron Cross Section Centre (NNCSC)NEA Centre de Compilation de Donnees Neutroniques (CCDN)
Centr po Jadernym Dannym (CJD)
IAEA Nuclear Data Section (NDS)- 111 -

need for an increased support of the compilation and evaluationof basic non-neutron nuclear data, in order to satisfy theserequirements. The administrative and policy functions of the
IWGNSRD, now dissolved, have been transferred to HTDC,and its
more technical responsibilities to various specialized groups
such as this Consultants' Meeting on Charged Particle andPhotonuclear Reaction Data.
Considering that the compilation and evaluation of charged
particle and photonuclear reaction data, which, to date, have beenaccomplished mainly on an individual or national basis, would be usefully enhanced by establishing a truly international cooperation forthe maximum benefit of a growing community of users, the main
objectives which were achieved by the meeting, are the following:~

to briefly outline the general scope of the data needs;-

to review the present activities of the existing centres
and groups involved in compilation and evaluation
activities;-

to formulate policy guide-lines that the IAEA would submit
to national authorities for implementation.

This summary report includes the conclusions and recommendations
as well as the adopted agenda, the list of participants and the listof documents presented at the meeting.

- iv -1 -IAEA Consultants1 Meetingon Charged Particle and Photonuclear Reaction Data
24 - 26 April 1974, Vienna

Statust Conclusion and Recommendations

I.

StatusThe present status of the compilation and evaluation of
charged particle and photonuclear reaction data is as follows:
A. References
A complete file of bibliographic references is the basis ofany system of data compilation and evaluation. In this regard, thereference file and keyword system for research on nuclear structureand decay and on nuclear reactions of the Oak Ridge Nuclear Data
Project in the USA are currently recognized to be the most complete
and adequate referencing system available. Its output consists oflists of 'bibliographic keyworded information which are publishedthree times per year as "Recent References" in the Nuclear Data
Sheets and which are provided on a regular basis to other nuclear
data centres and groups.
In the USSR, the Nuclear Data Centre of the Leningrad Instituteof Nuclear Physics at Gatchina and the Centre of the State Committee
on the Utilization of Atomic Energy for Nuclear Structure andReaction Data at the Kurchatov Institute in Moscow are contemplating
the development of a bibliographic reference file based on the keyword system of the Oak Ridge Nuclear Data Project.
B.

Charged Particle and Photonuclear Reaction Data

The Photonuclear Data Centre at the National Bureau of Standards
in Washington, D.C»in the USA and the Charged Particle Nuclear Data
Group of the Nuclear Research Centre at Karlsruhe in the Federal
Repttblic of Germany (hereafter referred to as the US Photonuclear
Data Centre and the PRO Charged Particle Nuclear Data Group) are
the currently leading centres for the compilation and evaluation ofthese types of data.In the USSR, the Nuclear Data Centre at theKurchatov Institute is responsible for the compilation and evaluationof these dataj it serves also as an information centre for users in theSoviet Union.

- 2 -a) The US Photonuclear Data Centre-

systematically abstracts, collects, and indexes data fromthe published literature in the field of photonuclear
physics*;-

maintains a library of digitized photonuclear cross section
data;

-

serves as an information center for the field of photonuclear
physics;-

periodically publishes an updated cumulative index to thedata published in the field and those in its files [l].

The Center is currently preparing a comprehensive atlas on
photonuclear reaction data to be published in three sections
starting early in 1975•t>) The FRG Karlsruhe Charged Particle Nuclear Data Group-

compiles and evaluates excitation functions of chargedparticle induced nuclear reactions. The more recent
results of these efforts are being published in 3 volumesof the new Landolt-Boernstein handbook series-

is taking steps towards the digitalization of these data.

The participants also recognized the recent compilations ofcharged particle and photonuclear reaction cross sections performedby two Swedish groups at Lund and Studsvik [3] and the intention of
the Lund group to compile photonuclear data for higher photon energies
up to about 1 GeV.

II.

Conclusion

Considering the broad current and future needs for charged
particle and photonuclear reaction references and data, which havebeen documented e.g. in ref. [4]» the participants believe thatthe very valuable services provided by the existing centres andgroups could be usefully enhanced by establishing a coherent
international cooperation in the compilation, evaluation and dissemination of these data. This cooperation would require a freeinternational exchange of experimental as well as evaluated data
between the centres and groups concerned.

* Photonuclear physics data are defined to be any experimental
results that give information about the electromagnetic matrix
element connecting the ground state of a nucleus with any excitedstate of the continuum.

- 3 -

III. Acknowledgement
The participants acknowledge the recommendations of the
INDC and express their appreciation to the IAEA Nuclear Data
Section for convening this meeting and for all steps it has
taken in the past and will take in the future towards
implementing an international system for the compilation,
evaluation and exchange of such data.

[l]"Photonuclear Reaction Data, 1973"* NBS Special
Publication 380.

[23

Landolt-Boernstein, new series, Springer Verlag
Vol. I, 5& includes Q—values for 64 reaction types with
25 different projectiles (666 pages, Spring 1973)
Vol. I, 5b includes 1800 excitation functions for charged
particle induced reactions (493 pages, Summer 1973)
Vol. I, jjc includes a systematic of excitation functions
for nuclear reactions induced "by p, d, -%e and oc.
(about 250 pages, in print).

[3]

I. Lorenzen and D. Brune "Excitation functions for charged
particle induced reactions in light elements".
B. Buelow and B. Porkman "Photonuclear cross-sections";
two chapters of the forthcoming IAEA Handbook on Nuclear
Activation Cross Section Data to "be published in summer 1974*[4]- Nuclear Data in Sciences and Technology (Proc.Symp.Paris, 1973)
IAEA, Vienna (1973)* 2 volumes.
- A. Calamand "Survey of current and future needs for charged
particle and photonuclear reaction data", Report HJDC(NDS)-62.

- 4-

IV.

Recommendations

In order to ensure continuity, quality, completeness and the
maximum benefit to the growing community of users of charged particle
and photonuclear reaction data in science and technology, theparticipants make the following recommendations:A.

References

In order to facilitate the transfer of "bibliographic information
on charged particle and photonuclear reaction data, compilation groups
which are contemplating the development of reference systems should
consider adopting the keywords and reference system of the Oak Ridge
Nuclear Data Project building on the expertise aquired by this Project.
The Project's references master file should be provided to nuclear data
centres such as that at the Kurchatov Institute and upon request also
to neutron data centres.

B.

Charged particle and photonuclear reaction data

1.
The existing centres and groups involved in the compilation andevaluation of charged particle and photonuclear reaction data arestrongly urged to continue their efforts and to build up and maintain computer files of these data.
2.
Groups interested in the compilation and evaluation of charged
particle and photonuclear reaction data should be encouraged to do soin close consultation with the US Photonuclear Data Center and the
PRG Charged Particle Nuclear Data Group. Research groups in thesefields should be asked to supply their results to these centres andgroups on a regular basis, preferably in digitized form. One mightenvisage this flow of data to take place via direct communication tothese two data centres or through regional data centres such as the
Nuclear Data Centre at the Kurchatov Institute whichever way is mostefficient.
3.
The participants strongly recommend that the content of themaster files resulting from this international effort be made available
to the entire user community. As far as the numerical data areconcerned, this might be most conveniently achieved by utilizing thewell established dissemination mechanisms such as the neutron data
centres and other centres such as the Nuclear Data Centre at the- 5-Kurchatov Institute. It is therefore recommended that these centres,
should they request it, "be supplied with the master files of the US
Photonuclear Data Centre and of the PRG Charged Particle Nuclear Data
Group.
4«
The participants urge all centres concerned that, in the exchangeof experimental and evaluated charged particle and photonuclear reaction
data, strong consideration be given to studying and employing existing
widely used computer formats.
5.
In view of the immensely large volume of measured data on angularand energy distributions of secondary particles in charged particle
nuclear reactions, the participants recommend that the INDC be asked toinvestigate, whether, in addition to energy dependent cross section data,
there is a real applied need to justify and demand the systematic
inclusion of angular and energy distribution data in the scope of aninternational compilation effort.

C.

General recommendations« implementation

The participants ask the Director General of the IAEA, after
consultation with the INDC, to take the appropriate steps in orderto implement these recommendations and to communicate them to thenational authorities and professional societies concerned. In viewof the urgency of these problems, the participants are concerned that
the Governments which will be approached respond at their earliest
convenience so that the proposed international cooperation can be
implemented with the least possible delay for the benefit of theentire nuclear community. The assistance of INDC members and liaison
officers in approaching the pertinent professional societies in theircountries would be helpful*— 7—
Consultants' Meeting on Charged Particle
and Photonuclear Reaction
Vienna, 24 - 26 April 1974
LIST OF PARTICIPANTS

Consultants
Mr. P.E. Chukreev

Nuclear Data Centre I.V. Kurchatov
Institute of Atomic EnergyMoscow | USSR

Mr. E.G. Puller

Photonuclear Data Centre
US Department of Commerce
National Bureau of Standards
Washington, D.C. 20234, USA

Mr. D.J. Horen

Nuclear Data GroupOak Ridge National Laboratory
P.O. Box X
Oak Ridge, Tennessee 37830, USA

Mr. H. Muenzel

Charged Particle Nuclear Data Group
Institut f. Radiochemie
Kernforschungszentrum Karlsruhe
Postfach 3640
D-75 Karlsruhe, BRD

Observers
Mr. D. Brune

A.B. Atomenergi Sweden
Pack
S-611 01 Nykoeping 1
SwedenMr. P.H. Proehner

NEA Neutron Data Compilation Centre
B.P. No. 9
F-91190 Gif-sur-Yvette, Prance

Mr. S. Pearlstein

National Neutron Cross Section Centre
Brookhaven National Laboratory
Upton, JF.Y. 11973, USA

- 8 -IAEA
Mr* A. Calamand,
Scientific Secretary-

Mr. K. Czock

Nuclear Data Section
Kaerntnerring 11-13
A-1011 Vienna
IAEA Laboratory, Seibersdorf

Mr. A. Lorenz
Mr. J.J. Schmidt
Mr. M. Vlasov •Nuclear Data Section

— 9 —

Consultants' Meeting on
Charged Particle and Photonuclear Reaction Data

Vienna, 24-26 April 1974

Adopted Agenda

I.

Survey of current and future needs for charged particle andphotonuclear reaction data (paper to be prepared by the
Nuclear Data Section),II.

Review of activities of existing compilation centres andgroups•1.

Scope and format of the compilations (references, data
and associated information).

2.

Publications and services to users.

3»

Completeness of existing compilations.

4* Existing collaborations.
III.

Feasibility of international cooperation in the compilationand exchange of charged particle and photonuclear reactionreferences and data.

IV.

Feasibility and functions of an international data information
bureau.

V.

Conclusions and recommendations.

- 11 -LIST OF DOCUMENTS

The documents marked with a /are published in INDC(NDS)--6l together
with documents presented at the Specialists1 Meeting on Nuclear
Data for Applications (29 April - 3 May 1974| Vienna), the summary
report of which is published as INDC(NDS)-6O.
1.

Survey of current and future needs for charged particle andphotonuclear reaction data, by A. Calamand (Paper presented
to the meeting*).

2.

"Photonuclear Physics 1973, Where We Are and How We Got There",by E. Puller
Reprint from the Asilomar Conference on Photonuclear Reactions& Applications, March 26-30, 1973.

3.

Photonuclear Reaction Data, 1973 - NBS Special Publication 380.
U.S. Department of Commerce, National Bureau of Standards, issued
March 1973.

4»Photonuclear Reactions, by E. Hayward. NBS Monograph 118.
U.S. Department of Commerce, National Bureau of Standards,
issued August 1970.

5»

Summary of Compilation and Evaluation Activities (Photonuclear
Reactions). Excerpt from recent USNDC meetings.

6.

The Photonuclear Data Centre; March 1974.
(Description of the centre activities).

7»

Charged Particle Cross Section (CPX) Data Center computer - based files.

8.

Charged-Particle Cross Section Data Center.
(Dates and Titles of Publications)9*

Nuclear cross sections for charged-particle-induced reactions,
N and 0, compiled by H.J. Kim, W.T. Milner, and F.K. McGowan.
NUCLEAR DATA, Section A, Volume 3, Number 2, September I967.
(Sample).

10. Reaction List for Charged-Particle-Induced Nuclear Reactions
Z - 1 to Z - 98 (H to Cf), July 1972 - June 1973by F.K. McGowan and W.T. Milner
ATOMIC DATA AND NUCLEAR DATA TABLES 12, 499-583(1973).

*

Revised version published as INDC(NDS)-62.

- 12 -

11.

Computerized Libraries of Nuclear Data, by S. Pearlstein
March 1, 1974-

12.

Generalized EXPOR Isoquants (Nuclear Data Section proposal
reproduced from Pour Centres Memo 4C-3/93»)

13. Nuclear Data Section Short Guide to EXPOR.
14»

Principles of constructing systematized, bibliographic nuclear
data files, by A.I. Abramov - Report INDC(CCP)-29/L.

15»

Photonuclear Cross Sections, by B. Buelow and B. Porkman.

16. Excitation Functions for Charged-Particle-Induced Reactionsin Light Elements, by J. Lorenzen and D. Brune.
(Documents 15 and 16 are two chapters of the forthcoming IAEA
Handbook on Nuclear Cross Section Data for Activation Analysis)•17.

Nuclear Structure Data Pile — Preliminary Specifications March 29, 1974, by the Nuclear Data Project.

18.

Memo of March 20, 1974 from W.B. Ewbank to the Nuclear Data
Project Compilers.

19•

The Digital Data Piles of the Photonuclear Data Center,by H.M. Gerstenberg.

20.

Landolt-Boernstein - New series - Springer Verlag- Band I 5a. - Q-values for 64 reaction types with 25 different
projectiles.
- Band I [jb - 1800 excitation functions for charged-particle
induced reactions- Band I 5c - Systematics of excitation functions for nuclear
reactions induced by p, df 3He and a particles
by H. Muenzel et al.

21. The State of Work on Non-Neutron Nuclear Data in the USSR, by
L.L. Sokolovskij, Tu.I. Penin and P.E. Chukreev.