中子与^(63,65)Cu反应的理论计算

Theoretical Calculations for n+ ^(63,65)Cu Reactions

根据中子与天然Cu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数;应用得到的光学模型势参数,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63,65Cu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的一致.

By fitting the experimental data of total, innelastic and elastic scattering angular distributions for n＋Cu reactions, a set of neutron optical model potential parameters is obtained. The inelastic scattering angular distributions of discrete levels and double differential cross sections are calculated and analyzed by using the distorted wave Born approximation theory, the unified Hauser-Feshbach model and the exciton model. By fitting data the neutron level deduced deformation parameters are obtained. The results indicate that the calculated results of the inelastic scattering angular distributions and the total outing neutron double-differential cross sections for n＋^63,^65Cu can be obtained, which are all in good agreement with the experimental data.