考虑非弹性散射的中子慢化谱
Neutron moderation spectrum considering inelastic scattering
摘要：
首次得到了考虑慢化介质温度为参数的气体模型中各向同性中子源的中子非弹性散射定律的解析表达式。在实验室坐标系（L-系）中求解一般情况下中子在核上的非弹性散射运动学问题的基础上，得到了中子在核上的非弹性散射规律。即在L系统中，不仅中子而且原子核都具有任意速度矢量的情况。在弹性散射和非弹性散射两种情况下，得到了反应堆裂变介质中子通量密度和慢化谱的解析表达式。弹性和非弹性散射定律被认为是依赖于介质温度。所得到的中子慢化谱的表达式，使重新解释的物理性质的过程，确定在一个广泛的能量范围内的中子谱的形状。
英文摘要：
For the first time an analytic expression was obtained for the inelastic neutron scattering law with an isotropic neutron source within the gas model, considering moderating medium temperature as a parameter. The inelastic scattering law is obtained, based on the solution of the kinematic problem of neutron inelastic scattering on a nucleus in laboratory coordinate system (L-system) in general case. I.e. in case not only a neutron but also a nucleus have arbitrary velocity vector in L-system. Analytic expressions are found for the neutron flux density and moderation spectrum in reactor fissile medium, both in case of the elastic scattering law, obtained earlier by the authors, and in case of the inelastic scattering law obtained in this paper. Both elastic and inelastic scattering laws are considered to be dependent on the medium temperature. The obtained expressions for neutron moderation spectra enable reinterpretation of physical nature of the processes that determine the shape of neutron spectrum in a wide energy range.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
