NUCLEAR DATA VERIFICATION USING GALILEE AND TRIPOLI-4
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1 NUCLEAR DATA VERIFICATION USING GALILEE AND TRIPOLI-4 C. Jouanne (CEA Saclay) WPEC-SG43 MAY 2018 PAGE 1
2 VERIFICATION GALILEE-1 Code : GALVANE Module (GALilée Verification of the Accuracy of Nuclear Evaluations) Library (# nuclei / #nuclei with DD) JENDL40 (406 / 3) JEFF32 (472 / 169) JEFF33 (562 / 328) ENDFB7R1 (423 / 41) ENDFB8 (557 / 114) Inconsistencies Mass comparison (> 1 MeV) Resonance parameters Q-reactions (> 500 kev) Anisotropy Radioactive production Missing gamma production for radiative capture PAGE 2
3 VERIFICATION / RADIOACTIVE PRODUCTION 328 Nuclei with Radioactive Production - Inelastic scattering (MT4) : Final state with Exc > 0 MeV and LFS = 0 (GS identification) : 85 evaluations TALYS correction? - Inconsistencies between GP data and JEFF33/DD for ID state (Energy Level) or Excitation Energy value ID STATE J33-GP / J33-DD : 95 ENER STATE J33-GP / J33-DD : 5 Delta ID STATE J33-GP / ENDFB8-DD : 33 Delta ENER STATE J33-GP / ENDFB8-DD : 7 Delta ID STATE J33-GP / ENSDF : 31 Delta ENER STATE J33-GP / ENSDF : 5 Source of inconsistencies for depletion calculations Corrections in JEFF33/DD? ENDF/B-VIII : (114 nuclei). No problem with MT4 final states Delta ID STATE ENDFB8-GP / ENDFB8-DD : 17 Delta ENER STATE ENDFB-GP / ENDFB8-DD : 0 PAGE 3
4 OUTGOING PARTICLE KINEMATICS / ENERGY BALANCE - JEFF-3.3/MF5 : Cd isotopes, (n,2n) and (n,3n) reactions for various incident energies : ΣE n > Eavailable - MF6, MT91 (continuous inelastic scattering) : JEFF-3.3 / TENDL15 : 335 nuclei with E γ < E exc at threshold ENDF/B-VIII : 102 nuclei (E γ < E exc ) - MF6, Gamma production : Discrete probability + continuous probabiliy 1 : JEFF-3.3 : 5 nuclei ENDF/B-VIII : 7 nuclei - MF6 used for discrete inelastic scatterings (MT51-90). JEFF-3.3 : 56 nuclei ENDF/B-VIII : 95 nuclei Gamma production in MF6 should be moved in MF12 Solution : generate MF4 (neutron angular distribution) + MF12 (gamma production) JEFDOC-1841 (2017) : 31 nuclei in JEFF-3.3 -MF6 for inelastic scattering : Yield gamma < 1. (Take care of metastable nucleus production) JEFF-3.3 : 65 nuclei ENDF/B-VIII : 106 nuclei -MF12 : gamma production (inelastic scaterings, (n,p), ) : incoherence MF3 / MF12 level states ENDF/B-VIII : 39 nuclei. Iron isotopes from CIELO PAGE 4
5 IRON ISOTOPES CIELO : FE56 26-Fe- 56 CIELO EVAL-DEC17 CIELO Collaboration MF12 : MT69, MT70, MT72, MT73, MT74, MT79, MT82, MT83, MT84, MT86, MT87, MT88, MT89 : unknown gamma transition, unknown excited state. MF3 MT55 Excited Energy e+06 MF12 MT55 Excited energy e+06 MF12 MT69 : decrease towards an excited state of e+06 MF3 MT60 Excited Energy MF12 MT60 Excited Energy: e+06 MF12 MT69 : decrease towards an excited state of e+06 PAGE 5
6 FOCUS ON PU BENCHMARKS (TRIPOLI-4) PAGE 6
7 FOCUS ON PU BENCHMARKS (TRIPOLI-4) MF2/MT151 B8 = MF2/MT151 B7 from 2.5 kev to 30 kev B8 : URR LSSF=1 ; B7 : URR LSSF=0 JEFF-3.3 URR from 4 kev to 30 kev ; LSSF=1. 1st Inel : 7.8 kev PAGE 7
8 URR PU239 / ENDF/B-VIII PAGE 8
9 URR PU239 / ENDF/B-VIII PAGE 9
10 CONCLUSION Libraries : Use of MF12 (Transition probabilities) instead of MF6 for gamma cascade (discrete inelastic scatterings) Improvement of Analog simulations Unit Base Interpolation for outgoing energy distribution (MF5, MF6, MF15) Energy balance Depletion calculations : DD and GP should be in agreement Kinematics of outgoing particles at high energy (> 20 MeV) should be improved URR data. PURR doesn t treat reactions in addition to MT2, MT18, MT102, MT1 PAGE 10
11 PAGE 11 CEA 10 AVRIL 2012
12 ICSBEP BENCHMARKS : U, MIXT FAST (TRIPOLI 4) Godiva Flattop-25 Big-10 ZPR-U9 ZPR-16%
13 ICSBEP BENCHMARKS : PU FAST (TRIPOLI 4) JEZEBEL JEZEBEL-40 PAGE 13
14 ICSBEP BENCHS : U, MIXT THERM (TRIPOLI 4) PAGE 14
15 ICSBEP BENCHMARKS : PU THERM (TRIPOLI 4) PAGE 15
16 VERIFICATION / NUCLEUS MASS Comparison to Mass Excess (NUBASE2012) : Δ > 1 MeV. Cd106, Cd113, Ce141, Eu155, I135, La139, Ru103, Ru104, Ru105, Th230, Xe134 Corrections on AWR + Q + Thresholds (MF4, MF5, MF6,.) PAGE 16
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