31-GA- 0 KHI EVAL-MAR94 T.WATANABE
DIST-APR94
----JENDL-3.2 MATERIAL 3100
-----INCIDENT NEUTRON DATA
------ENDF-6 FORMAT
HISTORY
94-3 NEW EVALUATION WAS CONSTRUCTED FROM ISOTOPES DATA
MF=1 GENERAL INFORMATION
MT=451 COMMENTS AND DICTIONARY
MF=2 RESONANCE PARAMETERS
MT=151 RESOLVED RESONANCE PARAMETERS
RESOLVED RESONANCE PARAMETERS FOR MLBW FORMULA (BELOW 5.9KEV.)
THE DATA WERE CONSTRUCTED FROM THE EVALUATED RESONANCE
PARAMETERS FOR GA-69 AND GA-71, CONSIDERING THEIR
ABUNDANCES/1/.
CALCULATED 2200-M/S CROSS SECTIONS AND RES. INTEGRALS (BARNS)
2200 M/S RES. INTEG.
TOTAL 9.8 -
ELASTIC 7.0 -
CAPTURE 2.8 23.8
MF=3 NEUTRON CROSS SECTIONS
BELOW 5.9 KEV, RESONANCE PARAMETERS WERE GIVEN.
ABOVE 5.6 KEV, THE TOTAL, ELASTIC AND INELASTIC SCATTERING, AND
CAPTURE PARTIAL CROSS SECTION WERE GIVEN USING EACH ISOTOPES
DATA CALCULATED WITH CASTHY PROGRAM/2/.
MT=16,22,28,32,102,103,104,105,106,107,111,251
(N,2N),(N,NA),(N,NP),(N,ND),(N,P),(N,D),(N,T),(N,HE-3),
(N,A),(N,2P),MU-BAR
WERE CONSTRUCTED FROM EACH GA ISOTOPE DATA CONSIDERING
ABUNDANCES.
CROSS SECTIONS FOR EACH ISOTOPE WERE EVALUATED USING CASTHY
AND MADIFIED EGNASH-2/3/ PROGRAMM.
NEUTRON OPTICAL POTENTIAL PARAMETERS USED WERE AS FOLLOWS.
DEPTH (MEV) R*A**(1/3) DIFFUSENESS(FM)
---------------------- ------------ ---------------
V = 49.42-0.5867E , R0 = 1.293 , A0 = 0.415
WS = 5.381+0.4117E , RS = 1.308 , AS = 0.456
WSO= 8.552 , RSO= 1.583 , ASO= 0.648
THE LEVEL SCHEME WAS ADOPTED FROM ENSDF FILE.
NO. ENERGY(MEV) SPIN-PARITY ISOTOPE
GR. 0.0000 3/2 - GA-69,-71
1 0.3187 1/2 - GA-69
2 0.3900 1/2 - GA-71
3 0.4872 5/2 - GA-71
4 0.5116 3/2 - GA-71
5 0.5741 5/2 - GA-69
6 0.7140 11/2 - GA-71
7 0.8720 3/2 - GA-69
8 0.9103 3/2 - GA-71
9 0.9648 5/2 - GA-71
10 1.0285 1/2 - GA-69
11 1.1068 5/2 - GA-69
1.1074 7/2 - GA-71
1.1093 1/2 - GA-71
12 1.1340 7/2 - GA-69
13 1.3366 7/2 - GA-69
14 1.3952 7/2 - GA-71
15 1.4759 5/2 - GA-71
16 1.4880 7/2 - GA-69
1.4937 9/2 + GA-71
1.4986 5/2 - GA-71
17 1.5259 3/2 - GA-69
18 1.6316 3/2 - GA-71
19 1.7022 1/2 + GA-71
20 1.7198 5/2 - GA-71
21 1.7237 5/2 - GA-69
22 1.7524 3/2 - GA-71
1.7648 9/2 - GA-69
23 1.8916 3/2 - GA-69
1.9040 5/2 - GA-71
24 1.9242 7/2 - GA-69
25 1.9410 3/2 + GA-71
26 1.9724 9/2 + GA-69
1.9731 1/2 - GA-69
27 2.0076 3/2 - GA-69
1.9950 5/2 - GA-71
28 2.0238 5/2 - GA-69
29 2.0452 5/2 - GA-69
30 2.0640 1/2 - GA-71
31 2.1342 5/2 - GA-71
32 2.1980 13/2 - GA-69
2.1913 5/2 - GA-71
2.2060 5/2 - GA-71
33 2.2193 1/2 + GA-69
34 2.2510 1/2 - GA-69
2.2472 7/2 + GA-71
35 2.2944 1/2 - GA-71
36 2.3195 7/2 + GA-69
2.3273 1/2 - GA-71
37 2.3533 5/2 - GA-69
38 2.4233 13/2 - GA-69
2.4288 5/2 - GA-69
LEVELS ABOVE 2.33 MEV WERE ASSUMED TO BE OVERLAPPING.
PARAMETERS FOR THE COMPOSITE LEVEL DENSITY FORMULA OF GIRBERT-
CAMERON WERE EVALUATED.
SPIN CUT-OFF PARAMETER C1 WAS TAKEN AS 0.146.
GA- 69 GA- 70 GA- 71 GA-72
---------------------------------------
A (MEV) 11.340 11.590 13.000 12.900
SPIN CUT-OFF PARAM. 8.271 8.442 9.026 9.075
PAIRING ENERGY (MEV) 1.500 0.0 1.430 0.0
NORMALIZATION FACTOR 1481.60 1536.20 1747.70 1758.60
E-JOINT (MEV) 6.924 4.221 6.326 4.961
MF=4 MT=2,16,22,28,32,51-88,91
(N,2N),(N,NA),(N,NP),(N,ND) AND ELASTIC AND INELASTIC SCATTERING
ANGULAR DISTRIBUTIONS OF SECONDARY NEUTRONS
WERE CONSTRUCTED FROM EACH GA ISOTOPE DATA CONSIDERING
ABUNDANCES.
MF=5 MT=16,22,28,32,91
(N,2N),(N,NA),(N,NP),(N,ND) AND CONTINUM INELASTIC SCATTERING
ENERGY DISTRIBUTIONS OF SECONDARY NEUTRONS
WERE CONSTRUCTED FROM EACH GA ISOTOPE DATA CONSIDERING
ABUNDANCES.
REFERENCES
1)C.M.LEDERER ET.AL. TABLE OF ISOTOPES 7TH ED.(1978)
JOHN WILEY & SONS INC.
2)S.IGARASHI,T.FUKAHORI JAERI-1321 (1991)
3)N.YAMAMURO JAERI-M 90-006(1991)