Application of the fictitious scattering radiation transport model for deep-penetration Monte Carlo calculations
Application of the fictitious scattering radiation transport model for deep-penetration Monte Carlo calculations
复制标题
虚拟散射辐射传输模型在深穿透蒙特卡罗计算中的应用
DOI：
10.2172/5257977
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发表时间：
1978
影响因子：
1.2
通讯作者：
S. N. Cramer
中科院分区：
文献类型：
--
作者：
S. N. Cramer
虚拟散射辐射输运模型适用于几何复杂系统的蒙特卡罗应用，通过开发合适的下一飞行估计器，将其扩展到深穿透计算中。给出了数学推导，证明了该估计格式实际上是一般模型的一维版本。解决了样本问题，以说明下一航班估计器的使用，其方差特征，以及模型的节省时间的特点。讨论的其他项目包括与标准方法的耦合技术，具有大截面的系统，以及在多群截面结构中包含虚拟散射模型。
The fictitious scattering radiation transport model, suitable for Monte Carlo applications in geometrically complex systems, has been extended for use in deep-penetration calculations by the development of an appropriate next-flight estimator. Mathematical derivations are given, and it is shown that the estimation scheme is actually a one-dimensional version of the general model. Sample problems are solved to illustrate the use of the next-flight estimator, its variance characteristics, and the time-saving features of the model. Other items discussed are coupling techniques with standard methods, systems with large cross sections, and inclusion of the fictitious scattering model in multigroup cross-section structure.