BEIJING.readme
Level density parameters for the back-shifted and Gilbert-Cameron
level densities
(Provided by Su Zongdi, CNDC Beijing)
Original name Present name Remark
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BEIJING_NLD_1_1_B-S.DAT beijing_bs.dat back-shifted parameters
BEIJING_NLD_1_1_G-C.DAT beijing_gc.dat Gilbert-Cameron parameters
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These files make part of the Chinese Evaluated Nuclear Parameter Library
(CENPL) and were prepared by Ge Zhigang, Su Zongdi (China Nuclear Data
Center, CIAE, P.O.Box 275-41, Beijing 102413) and Huang Zhongfu, Dong
Liaoyuan (Department of Physics, Guangxi Univ. Nanling, 530004) on 20 August
1995.
1. beijing_bs.dat (B-S data file)
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Contents
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This data file contains three sets of level density parameters for
back-shifted Fermi gas model recommended by Dilg et al.(the half-rigid
body parameter and rigid body parameter for the moment of inertia) [4]
of 1973 and Huang et al. [5] of 1991 . The half-rigid body and rigid
body parameters are given for 219 nuclides ranging from Ar-41 to
Cm-249, the parameters of Huang et al. given for 321 nuclides ranging
from O-17 to Cf-253.
Format
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The columns have the following meaning:
Z : charge number, column 1-3
EL : element symbol, column 5-6
A : mass number, column 8-10
a : level density parameter in 1/MeV for Huang et al., column 13-17
BSE: back-shift energy in MeV for Huang et al., column 19-23
a : level density parameter for half-rigid body parameter in 1/MeV,
column 26-30.
BSE: back-shift energy for half-rigid body parameter in MeV, column 32-36
a : level density parameter for rigid body parameter in 1/MeV,
column 39-43
BSE: back-shift energy for rigid body parameter in MeV, column 45-49
2. beijing_gc.dat (G-C data file)
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Contents
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This file collects three sets of level density parameters for the
composite four-parameter level density formula of Gilbert and Cameron
(G-C)[1] of 1965, Cook et al.[2] of 1967 and Su et al.[3] of 1985.
Two sets of level density parameters for G-C and the one by Su et al.
cover Z, N range from Z=11, N=11 up to Z=98, N=150. Those of
Cook et al. range from Z=28, N=33 up to Z=95, N=150.
Format
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The columns have the following meaning:
N or Z: neutron or charge number, column 1-4
P(N) : pairing energy of N in MeV from Su et al., column 7-11
S(N) : shell correction of N in MeV from Su et al., column 12-17
P(Z) : pairing energy of Z in MeV from Su et al., column 18-23
S(Z) : shell correction of Z in MeV from Su et al., column 24-30
P(N) : pairing energy of N in MeV from G-C, column 33-36
S(N) : shell correction of N in MeV from G-C, column 37-42
P(Z) : pairing energy of Z in MeV from G-C, column 43-47
S(Z) : shell correction of Z in MeV from G-C, column 48-54
P(N) : pairing energy of N in MeV from Cook et al., column 57-61
S(N) : shell correction of N in MeV from Cook et al.,column 62-67
P(Z) : pairing energy of Z in MeV from Cook et al., column 68-73
S(Z) : shell correction of Z in MeV from Cook et al.,column 74-80
References
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[1] A. Gilbert and A.G.W. Cameron, Can. J. Phys., 43, 1446(1965)
[2] J.L. Cook, H. Ferguson and A.R.de L. Musgrove, Aust. J. Phys., 20,
477(1967)
[3] Su Zongdi, Zhuang Youxiang, Wang Cuilan et al., INDC(CPR)-2, 1985
[4] W. Dilg, W. Schantl, H. Vonach and M. Uhl, Nucl. Phys., A217, 269
(1973)
[5] Huang Zhongfu, He Ping, Su Zongdi et al, Chinese J. Nucl. Phys.,
13, 147(1991)