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中子与56Fe反应的理论计算
引用本文:苏新武,韩银录,蔡崇海. 中子与56Fe反应的理论计算[J]. 原子核物理评论, 2017, 34(2): 258-262. DOI: 10.11804/NuclPhysRev.34.02.258
作者姓名:苏新武  韩银录  蔡崇海
作者单位:1.山西大同大学物理与电子科学学院, 山西 大同 037009;
基金项目:国家重点基础研究发展计划(973计划)项目(2007CB209903)
摘    要:应用光学模型、核内级联模型、激子模型(含改进的Iwamoto-Harada模型)、统一的Hauser-Feshbach理论以及扭曲波玻恩近似理论,对入射能量在20 MeV以下中子与56Fe非弹性散射反应的γ产生截面、分立能级截面和总的非弹性散射截面进行计算,并与最新实验数据以及来自ENDF/B-VII、JEFF-3.1和JENDL-4库的评价数据进行比较和分析。结果显示,理论计算结果与实验数据符合较好,并且对于有些激发态的非弹性散射截面我们的计算结果优于ENDF/B-VII,JEFF-3.1和JENDL-4库的评价结果。The gamma production, level production and total inelastic scattering cross sections are calculated at incident neutron energy below 20 MeV. The optical model, the intra-nuclear cascade model, the exciton model (including improved Iwamoto-Harada model), the uni ed Hauser-Feshbach theory and the distorted wave Born approximation theory are used. Theoretical calculated results are compared with the recent experimental data and other evaluated data from ENDF/B-VII, JEFF-3.1, and JENDL-4. It is found that our calculated results agree with the experimental data and the calculated results for some level cross sections are more consistent with the related experimental data than the results from ENDF/B-VII, JEFF-3.1, and JENDL-4 data base.

关 键 词:非弹性散射截面   γ 产生截面   分立能级截面
收稿时间:2016-08-28

Theoretical Calculations of n+56Fe Reaction
SU Xinwu,HAN Yinlu,CAI Chonghai. Theoretical Calculations of n+56Fe Reaction[J]. Nuclear Physics Review, 2017, 34(2): 258-262. DOI: 10.11804/NuclPhysRev.34.02.258
Authors:SU Xinwu  HAN Yinlu  CAI Chonghai
Affiliation:1.School of Physics and Electronic Science, Shanxi Datong University, Datong 037009, Shanxi, China;2.Key Laboratory of Nuclear Data, China Institute of Atomic Energy, Beijing 102413, China;3.Department of Physics, Nankai University, Tianjin 300071, China
Abstract:The gamma production, level production and total inelastic scattering cross sections are calculated at incident neutron energy below 20 MeV. The optical model, the intra-nuclear cascade model, the exciton model (including improved Iwamoto-Harada model), the uni ed Hauser-Feshbach theory and the distorted wave Born approximation theory are used. Theoretical calculated results are compared with the recent experimental data and other evaluated data from ENDF/B-VII, JEFF-3.1, and JENDL-4. It is found that our calculated results agree with the experimental data and the calculated results for some level cross sections are more consistent with the related experimental data than the results from ENDF/B-VII, JEFF-3.1, and JENDL-4 data base.
Keywords:inelastic scattering cross section  gamma production cross section  level production cross section
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