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New evaluation of d+Li data up to 50 MeV for IFMIF

Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft. 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

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New evaluation of d+Li data up to 50 MeV for IFMIF

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  1. Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft 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

  2. 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) Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 2005

  3. Status of d+Li data (Ed=17 MeV) Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 2005

  4. Status of d+Li data (Ed=40 MeV) Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 2005

  5. 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. Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 2005

  6. Serber model DWUCK GNASH ECIS95 Evaporation Preequilibrium Stripping Direct processing Neutron spectra Flowchart of the evaluation process Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 2005

  7. 1  Ed  50 MeV,M. Avrigeanu, local for 6Li and 7Li DEUTERONS 0.01  En 12 MeV, S. Chiba, for 6Li, modified NEUTRONS 12  En 70 MeV, A. Koning & Delaroche, modified PROTONS 0.1  Ep 50 MeV, Beccheti & Greenless TRITONS 0.1  Et 50 MeV, Beccheti & Greenless ALPHAS 0.1  E 70 MeV, V. Avrigeanu & Hodgson Optical model calculations Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 2005

  8. Deuteron OMP (reaction cross-section) Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 2005

  9. Deuteron OMP (elastic scattering) Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 2005

  10. Neutron OMPs Chiba OMP modifications: Vr=V0e-(E-Ef)+V1 Koning OMP modifications: rWd and aWd – 20 % less energy dependent Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 2005

  11. Neutron OMP (elastic scattering) Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 2005

  12. 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 Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 2005

  13. level 1 level 2 level 4 level 5 “level” 3 Levelscheme used for 7Li(d,n) 8Be calculations Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 2005

  14. level 1 level 3 level 1 Level scheme used for 6Li(d,n) 7Be calculations Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 2005

  15. Direct reactions (angular distributions) Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 2005

  16. Neutron spectra calculations (Ed=17 MeV) Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 2005

  17. Neutron spectra calculations (Ed=40 MeV) Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 2005

  18. Results of the evaluation Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 2005

  19. Benchmark calculations Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 2005

  20. Complete evaluated deuteron general purpose files prepared for lithium isotopes 6Li and 7Li, 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 Conclusions     Technical Meeting on IFMIF, Forschungszentrum Karlsruhe, October 4-6 2005

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