【摘 要】
：
根据中子与原子核U及其同位素反应的总截面 ,去弹性散射截面和弹性散射角分布的实验数据 ,获得了入射中子能量 0 .1— 2 0MeV的一组普适中子与U及其同位素反应的光学模型势参
【机 构】
：
中国原子能科学研究院 北京102413
论文部分内容阅读
根据中子与原子核U及其同位素反应的总截面 ,去弹性散射截面和弹性散射角分布的实验数据 ,获得了入射中子能量 0 .1— 2 0MeV的一组普适中子与U及其同位素反应的光学模型势参数 .应用光学模型 ,核裂变理论 ,耦合道理论 ,扭曲波玻恩近似理论 ,宽度涨落修正的Hauser Feshbach理论和预平衡反应的激子模型 ,计算和分析了中子与 2 3 8U反应的所有截面、角分布、能谱和双微分截面 .理论计算与实验数据进行了分析比较
According to the experimental data of the total cross-section, the de-elastic scattering cross-section and the elastic scattering angle distribution of the neutron-nucleus U and its isotope reaction, a set of universal neutrons of incidental neutron energies of 0.1-2.0MeV are obtained with U and its isotopes The optical model potential parameters of the reaction were calculated and analyzed using optical model, nuclear fission theory, coupling theory, torsional wave Born approximation theory, Hauser Feshbach theory of width fluctuation correction and the preequilibrium reaction exciton model. 2 3 8U reaction of all cross sections, angular distribution, energy spectrum and double differential cross section theoretical calculations and experimental data were analyzed and compared
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