基于MCNP的BNCT人体头部剂量分布计算.pdf

( ) 第 19 卷 南华大学学报 自然科学版 Vol. 19 ( ) 2005 年 9 月 Journal of Nanhua University Science and Technology Sep. 2005 ( ) 文章编号 :1673 - 0062 2005 0067 - 04 基于MCNP 的BNCT 人体头部剂量分布计算 付宏忠 ,于　涛 (南华大学 核科学技术学院 ,湖南 衡阳 421001) 摘　要 :根据中国人的头部特性 ,利用 MCNP 程序对国际上普遍采用的 Synder 人体头 部模型进行修正 ,建立了具有中国人特征的用于 BNCT 的人体头部模型. 依据该人头 体模分别计算了基于微型中子源反应堆所提供的快中子、超热中子和热中子进行治 疗时的头部剂量分布 ,并对计算结果进行了分析 ,这为我国即将展开的 BNCT 临床治 疗研究提供了依据. 关键词 :头部模型 ;BNCT;建模 ;剂量分布 中图分类号:R730. 1 ;R329 　　　文献标识码 :B The Dose Distribution of Head for BNCT Based on MCNP FU Hongzhong ,YU Tao ( School of Nucleus Science and Technology ,Nanhua University ,Hengyang ,Hunan 421001 ,China) Abstract : According to the characteristics of the head of Chinese body ,MCNP code was used to modify head model. Synder geometry ,which is popular adopted in the world ,and a head phantom with Chinese body characteristics for BNCT is established. When a patient is treated by the fast neutron ,super - heat neutron and heat neutron provided by a Micro - Neutron - Source reactor ,the dose distributions for his head were calculated respectively based on this head phantom and the results were analyzed. The work in this paper provides basis for impend ing BNCT clinical treatment research in our country. Key words : modified head phantom ;BNCT;estab