1. New evaluation of d+Li data up to 50 MeV for IFMIF P. Pereslavtsev, U. Fischer Association FZK-Euratom Forschungszentrum Karlsruhe, Germany Technical Meeting on International Fusion Materials Irradiation Facility Forschungszentrum Karlsruhe, 4-6 October 2005 Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft

2. Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 20052 History   1998 – FZK (P. Wilson) simple evaporation model; Serber stripping model; experimental data for thick target at 32 MeV analytical formulas used in MCNP source subroutine (McDeli)   1999 – INPE-FZK analytical formulas for deuteron elastic scattering; optical model potentials; intranuclear cascade model; Serber stripping model; experimental data for thick target at 32 MeV ENDF-6 formatted files for deuteron energies up to 50 MeV new source subroutine for MCNP based on NJOY processed files   2001 – FZK revisions of INPE evaluated data based on experimental data for thick targets at 32 and 40 MeV   2004 – FZK revisions of INPE evaluated data (new deuteron elastic scattering data based on phenomenological OMP from 1 to 50 MeV)

3. Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 20053 Status of d+Li data (E d =17 MeV)

4. Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 20054 Status of d+Li data (E d =40 MeV)

5. Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 20055 Background and goals   The neutron source for IFMIF is based on d+Li reactions;   Available high energy general purpose d+Li data files fail in description of the experimental data;   General purpose deuteron cross section data files have to cover energies up to 50 MeV;   Data should include particle and photons emission spectra to enable nuclear heating calculations;   Data files should be ENDF-6 formatted for processing with the standard NJOY99 code.

6. Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 20056 Flowchart of the evaluation process EvaporationPreequilibrium StrippingDirect Serbermodel DWUCK Neutron spectra processing GNASH ECIS95

7. Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 20057 Optical model calculations DEUTERONS NEUTRONS PROTONS TRITONS ALPHAS 1  Ed  50 MeV, M. Avrigeanu, local for 6 Li and 7 Li 0.01  E n  12 MeV, S. Chiba, for 6 Li, modified 12  E n  70 MeV, A. Koning & Delaroche, modified 0.1  E p  50 MeV, Beccheti & Greenless 0.1  E t  50 MeV, Beccheti & Greenless 0.1  E   70 MeV, V. Avrigeanu & Hodgson

8. Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 20058 Deuteron OMP (reaction cross-section)

9. Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 20059 Deuteron OMP (elastic scattering)

10. Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 200510 Neutron OMPs Chiba OMP modifications: V r =V 0 e - (E-E f ) +V 1 energy dependent Koning OMP modifications: r Wd and a Wd – 20 % less

11. Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 200511 Neutron OMP (elastic scattering)

12. Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 200512 The use of GNASH code   Hauser-Feshbach statistical model for equilibrium;   Exciton preequlibrium model by Kalbach;   Transmission coefficients prepared by ECIS96 (DWBA);   Gilbert-Cameron level density form;   Nuclear structure data from RIPL-2 collection;   Kalbach systematics for secondary particle angular distributions

13. Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 200513 Level scheme used for 7 Li(d,n) 8 Be calculations E level (MeV)Q (MeV)Parity  (MeV) 0.015.030+0+ 0.007 3.0411.992+2+ 1.500 11.403.634+4+ 3.500 16.63-1.602+2+ 0.108 18.10-3.071+1+ 0.138 18.91-3.882-2- 0.122 19.07-4.043+3+ 0.270 19.24-4.213+3+ 0.230 19.40-4.371-1- 0.650 19.86-4.834+4+ 0.700 20.20-5.170+0+ 1.000 20.90-5.874-4- 1.600 21.50-6.473+3+ 1.000 22.00-6.971-1- 4.000 22.20-7.172+0.800 24.00-8.972-7.000 level 1 level 2 “level” 3 level 4 level 5

14. Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 200514 Level scheme used for 6 Li(d,n) 7 Be calculations E level (MeV)Q (MeV)Parity  (MeV) 0.003.383/2 - 0.432.951/2 - 4.57-1.197/2 - 0.175 6.73-3.355/2 - 1.200 7.21-3.835/2 - 0.500 9.27-5.897/2 - 9.90-6.523/2 - 1.800 11.01-7.633/2 - 0.320 17.00-13.621/2 - 6.500 level 1 level 3 level 1

15. Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 200515 Direct reactions (angular distributions)

16. Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 200516 Neutron spectra calculations (E d =17 MeV)

17. Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 200517 Neutron spectra calculations (E d =40 MeV)

18. Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 200518 Results of the evaluation

19. Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 200519 Benchmark calculations

20. Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 200520 Conclusions Complete Complete evaluated deuteron general purpose files prepared for lithium isotopes 6 Li and 7 Li, incident energy 0 -50 MeV, the data are stored in MT=2,5 and MF=3 and 6. Processed with standard ENDF-6 format checkers Processed with NJOY99 system Tested by MCNP4C benchmark calculations