1. Jag Tuli Town Meeting Helsinki, September 19, 07 International Network of Nuclear Structure and Decay Data Evaluators : Need for European participation Jagdish Tuli* National Nuclear Data Center Brookhaven National Laboratory *Email: Tuli@bnl.gov Brookhaven Science Associates

2. Jag Tuli Town Meeting Helsinki, September 19, 07 International Network of Nuclear Structure and Decay Data Evaluators It’s mission ENSDF Its Status, contributors, and users International effort and support

3. Jag Tuli Town Meeting Helsinki, September 19, 07 International Network of Nuclear Structure and Decay Data Evaluators Multinational team of nuclear structure and decay data evaluators coordinated by the IAEA In existence since 1974 Biennial meetings held under the auspices of the IAEA Maintain and update ENSDF (Evaluated Nuclear Structure Data File) Master database held at NNDC, BNL, USA Available through various media: Web, Publications

4. Jag Tuli Town Meeting Helsinki, September 19, 07 Contents: Evaluated nuclear structure and decay data for all known (>3000 ) nuclei, organized into over 294 mass chains ENSDF ENSDF - www.nndc.bnl.gov/ensdf www.nndc.bnl.gov/ensdf Decay data  -  +  +   - n etc. Reaction data (HI,xn  ) (p,p') (n,  ), (n,xn  ) Coulomb Exc. ( ,  '), ( ,xn  ) (d,p), etc. Adopted data best values Levels: E, J , T 1/2, , Q, configurations Gammas: E , BR, M, , ICC ENSDF

5. Jag Tuli Town Meeting Helsinki, September 19, 07 ENSDF Special (horizontal) evaluations that are needed by the nuclear structure community, e.g., logft values, α- and p-decay properties, SD and magnetic rotation bands, nuclear isomers, properties of nuclei far from the line of stability, heavy and super-heavy nuclei, etc. Evaluation of decay data for nuclides that are important to various applications, e.g., in reactor calculations, homeland security, medicine, detector calibrations, nuclear waste, etc.

6. Jag Tuli Town Meeting Helsinki, September 19, 07 ENSDF: Major Data Sources and Derivatives ENSDF Atomic Masses (Wapstra & Audi) Nuclear Science References (NSR) MIRD Contributing Databases: Derivative Databases: Derivative Publications: RADWARE MC Codes  MCNPX  GEANT N UBASE RIPL NuDat2 IE ORTEC & CANBERRA JANIS …

7. Jag Tuli Town Meeting Helsinki, September 19, 07 International contributions to ENSDF Sole source of funding: US/DOE Office of Science DOE is concerned about lack of non- US contributions to ENSDF

8. Jag Tuli Town Meeting Helsinki, September 19, 07 Structure and Decay Data Evaluation for ENSDF An international effort is needed to sustain this vital resource, used worldwide. An increasingly large fraction of evaluation effort now comes from US and Canada.

9. Jag Tuli Town Meeting Helsinki, September 19, 07 Usage US+Canada: 44% Europe: 26% Japan: 6 % China: 4 % Former: USSR 3 % India: 3% Structure and Decay Data Evaluation for ENSDF Usage of data geographically (source: US National Nuclear Data Center, 2005) There is dramatic disparity between contribution to and usage of final product Contribution (2002- 2006 average) US+Canada: ~78% Europe: ~9% Japan: ~5%

10. Jag Tuli Town Meeting Helsinki, September 19, 07 Numbers of participating Laboratories/Institutes in ENSDF evaluations Year 1981198619962007 N. America6666 Europe6542 → 1 (0) Russia2221 Japan1111 China--12 Rest of World1113 1615 14 (13)

11. Jag Tuli Town Meeting Helsinki, September 19, 07 Structure and Decay Data Evaluation for ENSDF European Effort (1986 to present): Dramatic erosion of prior European support: Out of the 6 European structure data centers in 1986, none is currently financially supported. Europe is a 26% user of end product but its contribution is disproportionately low (two remaining structure evaluators are retirees and have no financial support). European Structure Evaluation Centers Last published evaluation Current financial support? France2006No Belgium2005No Netherlands1998No Sweden1992No Germany1991No UK1986No

12. Jag Tuli Town Meeting Helsinki, September 19, 07 International Nuclear Structure and Decay Data Evaluators’ Network: responsible centres International Network Connections CentreFTE CentreFTE CNDC, Beijing, China0.25 NNDC, USA3.0 Jilin, China0.25 ORNL, USA0.25 B-le-Chãtel, France0.25 LBNL, USA1.85 JAEA, Japan0.5 TUNL, USA0.45 Kuwait0.2 ANL, USA0.75 PNPI, Russia0.25 McMaster, Canada1.0 ANU, Australia0.3 7.3 IIT, India0.2 2.2TOTAL9.5

13. Jag Tuli Town Meeting Helsinki, September 19, 07 Some Famous Evaluators J. Livingston & G. Seaborg (LBL) - Table of Isotopes E. Segre (LBL) – Chart of Nuclides G. Friedlander (BNL) & M. Perlman (LBL) – GE Wall Chart K. Way (ORNL) – Nuclear Data Sheets M. Lederer (LBL) – Table of Isotopes T. Lauritsen (UCLA) & F. Ajzenberg-Selove (UP) – A=1-20 D. Dzhelepov & L. Peker (Russia) – Table of Isotopes P. Endt & C. Van der Leune (Utrecht) – A=21-44 S. Raman, F. Bertrand, M. Martin (ORNL) – Nuclear Data Sheets

14. Jag Tuli Town Meeting Helsinki, September 19, 07 Some European Evaluation Groups Belgium (Ghent): D. De Frenne France (Grenoble): J. Blachot Germany (Karlsruhe): H. Behrens Netherlands (Utrecht): P. Endt, C. Van der Leune Sweden (Lund): P. Ekstrom U.K. (Liverpool): P. Twin, P. Forsyth

15. Jag Tuli Town Meeting Helsinki, September 19, 07 Conclusion Strong international effort is needed to sustain this vital resource, used worldwide. European community is a major user of NSDD databases. Their contribution to keep them updated will be greatly appreciated. Some European groups have expressed interest in this activity. These groups should be supported.

16. Jag Tuli Town Meeting Helsinki, September 19, 07 Conclusion Thanks for allowing me this opportunity to bring our concerns to your attention. Thanks for your great hospitality!