JENDL/AC-2008 Pu-239 0 0 0 0 9.423900+4 2.369990+2 1 1 6 19437 1451 1 0.000000+0 1.000000+0 0 0 0 69437 1451 2 1.000000+0 2.000000+7 1 0 10 19437 1451 3 0.000000+0 0.000000+0 0 0 497 879437 1451 4 94-Pu-239 JAEA+ EVAL-MAR08 O.Iwamoto,N.Otuka,S.Chiba,+ 9437 1451 5 DIST-MAR08 20080314 9437 1451 6 ----JENDL/AC-2008 MATERIAL 9437 9437 1451 7 -----INCIDENT NEUTRON DATA 9437 1451 8 ------ENDF-6 FORMAT 9437 1451 9 9437 1451 10 History 9437 1451 11 07-03 Data were calculated with CCONE code. 9437 1451 12 07-06 Fission spectrum was revised. 9437 1451 13 07-07 Theoretical calculation was made with CCONE code. 9437 1451 14 07-08 Theoretical calculation was made with CCONE code. 9437 1451 15 07-11 Fission cross section was revised with simultaneous 9437 1451 16 evaluation. 9437 1451 17 07-12 Fission cross section was revised with a new result of 9437 1451 18 simultaneous evaluation. 9437 1451 19 08-01 Fission cross section and resonance parameters were 9437 1451 20 revised. New CCONE calculation was adopted. 9437 1451 21 08-02 Re-calculated with CCONE code. Fission cross section and 9437 1451 22 nu-p were revised. 9437 1451 23 08-03 nu-p was revised. 9437 1451 24 Interpolation of (5,18) was changed. 9437 1451 25 Data were compiled. 9437 1451 26 9437 1451 27 9437 1451 28 MF= 1 General information 9437 1451 29 MT=452 Number of Neutrons per fission 9437 1451 30 Sum of MT=455 and 456 9437 1451 31 9437 1451 32 MT=455 Delayed neutrons 9437 1451 33 (same as JENDL-3.3) 9437 1451 34 Evaluated data by Tuttle/1/ were adopted. 9437 1451 35 Decay constants were adopted from Keepin et al./2/ 9437 1451 36 9437 1451 37 MT=456 Number of prompt neutrons per fission 9437 1451 38 Below 20 eV: 9437 1451 39 JENDL-3.3 was reduced by 0.2%. JENDL-3.3 was evaluated as 9437 1451 40 follows: 9437 1451 41 Standard Cf-252 sf nu-p was taken to be 3.756. Thermal 9437 1451 42 nu-p was 2.8781 that was a mean value of experimental 9437 1451 43 data. The energy dependent nu-p was obtained from 9437 1451 44 below 10 eV : ref./3/ multiplied by 1.001 9437 1451 45 10 eV