32-GE- 0 KHI EVAL-MAR94 T.WATANABE
DIST-APR94
----JENDL-3.2 MATERIAL 3200
-----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 62.0KEV)
THE DATA WERE CONSTRUCTED FROM THE EVALUATED RESONANCE
PARAMETERS FOR GE ISOTOPES CONSIDERING THEIR ABUNDANCIES/1/.
CALCULATED 2200-M/S CROSS SECTIONS AND RES. INTEGRALS (BARNS)
2200 M/S RES. INTEG.
TOTAL 10.62 -
ELASTIC 8.51 -
CAPTURE 2.11 5.88
MF=3 NEUTRON CROSS SECTIONS
BELOW 62 KEV, RESONANCE PARAMETERS WERE GIVEN.
ABOVE 8.5 KEV, THE TOTAL, ELASTIC AND INELASTIC SCATTERING, AND
CAPTURE CROSS SECTION WERE GIVEN AS BACKGROUND OR SMOOTH CROSS
SECTION.
THE DATA WERE CONSTRUCTED FROM THE EVALUATED CROSS SECTIONS
FOR EACH GE ISOTOPE CONSIDERING THEIR ABUNDANCIES.
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 GE ISOTOPE DATA CONSIDERING
ABUNDANCES.
CROSS SECTIONS FOR EACH ISOTOPE WERE EVALUATED USING CASTHY/2/
AND MODIFIED EGNASH-2/3/ PROGRAMM.
USED NEUTRON OPTICAL MODEL PARAMETERS WERE AS FOLLOWS.
DEPTH (MEV) RADIUS(FM) DIFFUSENESS(FM)
---------------------- ------------ ---------------
V = 52.07-0.7434E , R0 = 1.224 , A0 = 0.492
WS = 9.997+0.1299E , RS = 1.411 , AS = 0.36
WSO= 10.99 , RSO= 1.470 , ASO= 0.65
THE LEVEL SCHEME WAS ADOPTED FROM ENSDF FILE.
NO. ENERGY GE-70 GE-72 GE-73 GE-74 GE-76
(MEV)
----------------------------------------------------------------
GR. 0.000 GR GR GR GR GR
1 0.013 1
2 0.067 2, 3
3 0.354 4, 5, 6
4 0.499 7, 8
5 0.551 9,10 1
6 0.596 11,12 1
7 0.692 1
8 0.742 13,14
9 0.809 15,16
10 0.834 2 17
11 0.894 18-21
12 0.994 22,23
13 1.039 1 24
14 1.108 25,26 2
15 1.204 2 2
16 1.410 3
17 1.464 3 3, 4
18 1.539 4
19 1.697 3 4 5, 6
20 1.911 7 5, 6
21 2.029 5- 7
22 2.153 4, 5 8, 9
23 2.198 10,11 7, 8
24 2.307 6
25 2.396 8, 9
26 2.452 7 10 9,10
27 2.536 8 11 12
28 2.561 9 12 13,14 11,12
29 2.670 15-17 13-15
30 2.753 13,14 18 16
31 2.807 10 19-21 17
32 2.876 11 15,16 18,19
33 2.926 12 17-19 22-24
34 2.974 25 20
35 3.034 13-15 20-24 21,22
36 3.181 16-18
37 3.297 19-22
38 3.423 23 25 26 23
39 4.0 24 26 27 24
LEVELS ABOVE 1.14 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.
A(MEV) SPIN CUT- PAIRING NORMAL. E-JOINT
OFF PARAM. EN.(MEV) FACTOR (MEV)
---------------------------------------------------------------
GE-70 13.430 9.088 2.860 1780.00 8.234
GE-71 13.600 9.232 1.360 1828.30 8.064
GE-72 15.020 9.793 2.790 2047.70 7.841
GE-73 14.970 9.867 1.360 2069.20 7.828
GE-74 13.550 9.473 3.240 1898.60 10.660
GE-75 13.500 9.540 1.360 1917.20 7.654
GE-76 14.230 9.882 2.830 2047.70 8.586
GE-77 14.200 9.871 1.360 2043.40 6.872
MF=4 MT=2,16,22,28,32,51-89,91
(N,2N),(N,NA),(N,NP),(N,ND) AND ELASTIC AND INELASTIC SCATTERING
ANGULAR DISTRIBUTIONS OF SECONDARY NEUTRONS
WERE CONSTRUCTED FROM EACH GE ISOTOPE DATA CONSIDERING
ABUNDANCES.
MF=5 MT=16,22,28,32,91
(N,2N),(N,NA),(N,NP),(N,ND) AND CONTINUUM INELASTIC SCATTERING
ENERGY DISTRIBUTIONS OF SECONDARY NEUTRONS
WERE CONSTRUCTED FROM EACH GE 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)