JENDL-3.3 Cf249 pointwise at 300K 0 0 9.824900+4 2.469350+2 2 1 0 29852 1451 1 0.000000+0 0.000000+0 0 0 0 69852 1451 2 1.000000+0 2.000000+7 0 0 10 39852 1451 3 3.000000+2 0.000000+0 1 0 205 789852 1451 4 98-CF-249 JAERI EVAL-JUL95 T.NAKAGAWA AND T.LIU 9852 1451 5 DIST-MAR02 REV2-FEB02 20020226 9852 1451 6 ----JENDL-3.3 MATERIAL 9852 9852 1451 7 -----INCIDENT NEUTRON DATA 9852 1451 8 ------ENDF-6 FORMAT 9852 1451 9 9852 1451 10 HISTORY 9852 1451 11 85-03 EVALUATION FOR JENDL-3 WAS MADE BY Y.KIKUCHI AND 9852 1451 12 T.NAKAGAWA (JAERI). DETAILS ARE GIVEN IN REF. /1/. 9852 1451 13 95-07 NEW EVALUATION WAS MADE BY T.NAKAGAWA AND T.LIU. 9852 1451 14 00-05 MODIFICATION AND COMPILATION WERE MADE BY T.NAKAGAWA 9852 1451 15 9852 1451 16 ***** Modified parts from JENDL-3.2 ******************* 9852 1451 17 MF=2 Scattering radius in the unresolved resonance 9852 1451 18 region. 9852 1451 19 ALL DATA OF MF'S = 3, 4 AND 5. 9852 1451 20 ******************************************************* 9852 1451 21 9852 1451 22 9852 1451 23 MF=1 GENERAL INFORMATION 9852 1451 24 MT=451 COMMENTS AND DICTIONARY 9852 1451 25 MT=452 NUMBER OF NEUTRONS PER FISSION 9852 1451 26 SUM OF MT'S = 455 AND 456. 9852 1451 27 MT=455 DELAYED NEUTRON DATA 9852 1451 28 SEMI-EMPIRICAL FORMULA BY TUTTLE /2/. 9852 1451 29 MT=456 NUMBER OF PROMPT NEUTRONS PER FISSION 9852 1451 30 SEMI-EMPIRICAL FORMULA BY HOWERTON /3/. 9852 1451 31 9852 1451 32 MF=2,MT=151 RESONANCE PARAMETERS (TAKEN FROM JENDL-3.2) 9852 1451 33 RESOLVED RESONANCES FOR MLBW FORMULA : 1.0E-5 EV TO 70 EV 9852 1451 34 RESONANCE ENERGIES, NEUTRON AND FISSION WIDTHS WERE TAKEN 9852 1451 35 FROM THE EXPERIMENTAL DATA OF BENJAMIN+ /4/. THE RADIATIVE 9852 1451 36 WIDTH WAS ASSUMED TO BE 0.04 EV ACCORDING TO DABBS+ /5/. 9852 1451 37 A NEGATIVE RESONANCE WAS ADDED SO AS TO REPRODUCE THE THERMAL 9852 1451 38 CROSS SECTIONS. NO BACKGROUND CORRECTION WAS APPLIED. 9852 1451 39 9852 1451 40 UNRESOLVED RESONANCES : 70 EV - 30 KEV 9852 1451 41 OBTAINED FROM OPTICAL MODEL CALCULATION: 9852 1451 42 S1=3.15E-4, S2=0.83E-4. 9852 1451 43 ESTIMATED FROM RESOLVED RESONANCES: 9852 1451 44 DOBS=1.16 EV, GAM-G=40 MILLI-EV ,S0=1.06E-4 9852 1451 45 FISSION WIDTHS WERE ESTIMATED FROM THE CHANNEL THEORY OF 9852 1451 46 FISSION /6/. S0, S1 AND S2 VALUES WERE ADJUSTED SO AS TO 9852 1451 47 REPRODUCE THE FISSION CROSS SECTION MEASURED BY DABBS+ /5/. 9852 1451 48 Scattering radius of 8.85 fm was determined so as to give the 9852 1451 49 same ealstic scattering cross section above 30 keV. 9852 1451 50 9852 1451 51 CALCULATED 2200 M/S CROSS SECTIONS AND RESONANCE INTEGRALS 9852 1451 52 2200 M/S VALUE RES. INT. 9852 1451 53 TOTAL 2176.7 B - 9852 1451 54 ELASTIC 6.22 B - 9852 1451 55 FISSION 1666 B 2220 B 9852 1451 56 CAPTURE 504.5 B 695 B 9852 1451 57 9852 1451 58 MF=3 NEUTRON CROSS SECTIONS 9852 1451 59 MT=1 TOTAL CROSS SECTION 9852 1451 60 CALCULATED WITH CASTHY CODE /7/ BASED ON THE SHERICAL 9852 1451 61 OPTICAL MODEL. THE OPTICAL POTENTIAL OF REF./8/ WERE 9852 1451 62 USED. 9852 1451 63 9852 1451 64 V = 45.036-0.3*EN (MEV) 9852 1451 65 WS= 4.115+0.4*EN (MEV) 9852 1451 66 WV= 0 , VSO = 7.5 (MEV) 9852 1451 67 R = RSO = 1.256 , RS = 1.260 (FM) 9852 1451 68 A = ASO = 0.626 , B = 0.555+0.0045*EN (FM) 9852 1451 69 9852 1451 70 COMPETING PROCESSES OF THE FISSION, (N,2N) AND (N,3N) WERE 9852 1451 71 TAKEN INTO ACCOUNT. THE FOLLOWING LEVEL DENSITY PARAMETERS 9852 1451 72 OF GILBERT-CAMERON'S FORMULA /9/ WERE USED. 9852 1451 73 9852 1451 74 ISOTOPE CF-249 CF-250 9852 1451 75 A(1/MEV) 29.4 31.2 9852 1451 76 SPIN-CUTOFF FACT 31.33 32.36 9852 1451 77 PAIRING E(MEV) 0.77 1.673 9852 1451 78 TEMP.(MEV) 0.3693 0.4025 9852 1451 79 C(1/MEV) 4.644 2.111 9852 1451 80 EX(MEV) 3.562 5.423 9852 1451 81 9852 1451 82 THE LEVEL SCHEME TAKEN FROM REF. /10/. 9852 1451 83 NO. ENERGY(KEV) SPIN-PARITY 9852 1451 84 G.S. 0 9/2 - 9852 1451 85 1. 62.49 11/2 - 9852 1451 86 2. 136.2 13/2 - 9852 1451 87 3. 144.96 5/2 + 9852 1451 88 4. 187.94 7/2 + 9852 1451 89 5. 220.0 15/2 - 9852 1451 90 6. 243.07 9/2 + 9852 1451 91 7. 315.0 17/2 - 9852 1451 92 8. 315.1 11/2 + 9852 1451 93 9. 379.52 7/2 + 9852 1451 94 10. 384.0 13/2 + 9852 1451 95 11. 416.8 1/2 + 9852 1451 96 12. 425.0 19/2 - 9852 1451 97 13. 437.56 9/2 + 9852 1451 98 14. 440.0 3/2 + 9852 1451 99 15. 442.98 7/2 + 9852 1451 100 16. 460.0 5/2 + 9852 1451 101 17. 500.7 9/2 + 9852 1451 102 18. 550.0 1/2 + 9852 1451 103 19. 606.0 5/2 + 9852 1451 104 20. 668.0 13/2 - 9852 1451 105 21. 751.0 15/2 - 9852 1451 106 22. 813.20 5/2 - 9852 1451 107 23. 852.19 7/2 - 9852 1451 108 24. 902.5 9/2 - 9852 1451 109 25. 920.0 11/2 + 9852 1451 110 26. 962.0 11/2 - 9852 1451 111 27. 992.0 13/2 + 9852 1451 112 28. 1008.0 9/2 + 9852 1451 113 CONTINUUM LEVELS ASSUMED ABOVE 1031. KEV. 9852 1451 114 9852 1451 115 MT= 2 ELASTIC SCATTERING 9852 1451 116 CALCULATED AS TOTAL - PARTIAL CROSS SECTIONS. 9852 1451 117 9852 1451 118 MT= 4 TOTAL INELASTIC SCATTERING 9852 1451 119 SUM OF MT=51 to 78 AND 91. 9852 1451 120 9852 1451 121 MT=16,17 (N,2N), (N,3N) CROSS SECTIONS 9852 1451 122 STAPRE RESULTS CALCULATED BY KONSHIN /11/ were adopted. 9852 1451 123 9852 1451 124 MT=18 FISSION CROSS SECTION 9852 1451 125 DATA WERE TAKEN FROM JENDL-3.2 WHICH WAS EVALUATED ON THE 9852 1451 126 BASIS OF THE MEASURED DATA BY DABBS+ /5/, SILBERT/12/ 9852 1451 127 AND KUPRIYANOV+ /13/. 9852 1451 128 9852 1451 129 MT=51, 52, 55 9852 1451 130 CALCULATED WITH ECIS /14/ AND CASTHY /7/ CODES. 9852 1451 131 LAGRANGE'S DEFORMED OPTICAL POTENTIAL PARAMETERS /15/ 9852 1451 132 WERE USED. 9852 1451 133 V = 49.82 - 17*((N-Z)/A) - 0.3*EN (MEV) 9852 1451 134 WS = 5.52 - 9*((N-Z)/A)+ 0.4*EN (MEV) EN=< 10 MEV 9852 1451 135 = 9.52 - 9*((N-Z)/A) (MEV) 10 =