摘要
在中子与60Ni反应的总截面、去弹性散射截面和弹性散射角分布的实验数据基础上,获得了入射中子能量0.456~150 MeV范围内的一组普适的中子与60Ni反应的光学模型势参数。利用光学模型、宽度涨落修正的Hauser-Feshbach理论、预平衡反应的激子模型和核内级联模型的中能核反应计算程序UNF和MEND,计算了中子与60Ni反应的所有截面、角分布和能谱,并将理论计算结果与实验数据和评价数据进行了分析比较。
Based on the experimental data of the total,the nonelastic and the elastic cross sections and the elastic scattering angular distributions for n＋^60Ni reactions,a set of parameters for neutron optical model potential was obtained in the incident neutron energy region of 0.456-150 MeV.Then reaction cross sections,angular distributions,energy spectra,gamma-ray production cross sections and gamma-ray production energy spectra were calculated in terms of the optical model,the distorted wave Born approximation theory,the Hauser-Feshbach theory,the exciton model and the cascade mechanism inside nuclear.The results were analyzed and compared with the existing experimental data and otier evaluated data from ENBF/B-6.There are in agreement with each other within error.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2008年第1期33-37,共5页
Atomic Energy Science and Technology
基金
国家自然科学基金资助项目(10305021)
