Isomeric Cross Section Ration for (n,2n)Reaction

Huang Xiaolong; Cai Dunjiu

Chinese Physics C> 1997, Vol. 21> Issue(5) : 453-457

Isomeric Cross Section Ration for (n,2n)Reaction

Huang Xiaolong ^, ,
Cai Dunjiu

China Institute of Atomic Energy, Beijing 102413

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Abstract：
Monte Carlo Calculations of the isomeric cross section ratio for (n,2n)reaction based on the compound nuclear reaction theories and exciton-model are presented. Thecalculations are compared with experimental measurements for ⁵⁹Co (n,2n)⁵⁸Co, ⁹³Nb(n,2n)⁹²Nb and ¹⁸¹Ta(n,2n) ¹⁸⁰Ta reactions in the energy region from threshold to 20MeV. The agreemeat between calculation and experiment indicates that the present method is suitable to calculate the isomeric cross section ratio for (n,2n)reactions.

References

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J.R.Hvizenga,R.Vandenbosch,Phys.Rev.,120（1960）1305.[2]Zhang Jingshang et al.,Z.Phys.,A329（1988）89.[3]庄友祥、苏宗涤、王翠兰，原子核物理，8（1986）199.[4]G.Audi,A.H.Wapstra,Nucl.Phys.,A565（1993）66.[5]M.Audi,Bormann et al.,Nucl.Phys.68（1965）387.[6]S.K.Ghorai et al.,Ann,Nucl.Energy,7（1980）41.[7]A.Paulsen et al.,Z.Phys.,A238（1970）23.[8]D.C.Santry et al.,Can.J.Phys.,68（1990）582.[9]J.Frehaut et al.,CEA-A-4627.1974.[10]L.R.Veeser et al.,Phys.Rev.,C16（1977）1792.[11]LU Hanlin et al.,INDC（CPR）-16,1989.

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Huang Xiaolong and Cai Dunjiu. Isomeric Cross Section Ration for (n,2n)Reaction[J]. Chinese Physics C, 1997, 21(5): 453-457.

Huang Xiaolong and Cai Dunjiu. Isomeric Cross Section Ration for (n,2n)Reaction[J]. Chinese Physics C, 1997, 21(5): 453-457. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Isomeric Cross Section Ration for (n,2n)Reaction

Huang Xiaolong ^,
Cai Dunjiu

Corresponding author: Huang Xiaolong,

China Institute of Atomic Energy, Beijing 102413

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1997-05-05

Abstract: Monte Carlo Calculations of the isomeric cross section ratio for (n,2n)reaction based on the compound nuclear reaction theories and exciton-model are presented. Thecalculations are compared with experimental measurements for ⁵⁹Co (n,2n)⁵⁸Co, ⁹³Nb(n,2n)⁹²Nb and ¹⁸¹Ta(n,2n) ¹⁸⁰Ta reactions in the energy region from threshold to 20MeV. The agreemeat between calculation and experiment indicates that the present method is suitable to calculate the isomeric cross section ratio for (n,2n)reactions.