中子与58,60Ni反应的理论计算

根据中子与天然Ni及其同位素反应的总截面、去弹截面和弹性散射角分布的实验数据，得到中子的光学模型势参量。应用得到的光学模型势参量，根据光学模型、统一的Hauser-Feshbach和激子模型理论以及扭曲波玻恩近似理论，系统计算和分析了中子与^58,60Ni反应的非弹散射角分布和双微分截面，理论结果与实验很好地一致。

Theoretical Calculations for n+ 58,60Ni Reactions

Based on the experimental data of total,nonelastic cross sections and elastic scautering angular distributions for n Ni reactions,a set of neutron optical model potential parameters was obtained in the region of incident neutron energy below 30 MeV.The inelastic scattering angular distributions of discrete levels and double differential cross sections were calculated and analyzed by using the distorted wave Born approximation theory,the unified Hauser-Feshbach model and the exciton model.The results indicate that the calculated results of the inelastic scattering angular distributions and the total outgoing neutron double-differential cross sections for n 58,60Ni can be obtained,which are all in good agreement with the experimental data.