脑组织等效材料在 BNCT 中的蒙特卡罗模拟

摘要

The calculated distributions of thermal neutron flux , fast neutron flux and photon dose in normal brain tissue and four brain tissue substitutes (water, PMMA, Liquids A and B) with neutron incidence by MCNP -4C.Liquid B is the best brain tissue substitute for phantom materials by the comparative analysis of the results .%运用蒙特卡罗程序（MCNP-4C）分别模拟计算了正常人脑组织和4种脑组织等效材料（水、有机玻璃、Liquids A和B）在中子照射下热中子通量、快中子通量、光子剂量的分布。通过对结果的对比分析知，在0．5 eV、10 keV中子照射下，Liquid B是较好的脑组织等效材料。