质子散射角分布的蒙特卡罗模拟  

Study of scattering angular distribution of proton using Monte-Carlo method

作　　者：鞠志萍[1] 曹午飞[1] 刘小伟[1] 

机构地区：[1]中山大学物理科学与工程技术学院,广州510275

出　　处：《物理学报》2009年第1期174-177,共4页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:10675175)资助的课题~~

摘　　要：利用Monte Carlo模拟软件Fluka2006.3b.2,模拟计算质子经单膜散射后粒子角分布及能量分布.讨论质子束能量、散射体材料及厚度对散射角分布的影响.结果表明:薄的高原子序数材料适合做散射体.The single-scattering-foil method is the basic of passive proton beam spreading system.In this paper,the angular distribution and energy distribution of proton beam on passing through a single scattering foil are calculated using Monte-Carlo multi-particle transport code Fluka2006.3b.2.,including the effect of proton energy,scattering material and target thickness on scattering angle.The result shows that thin-high-atomic-number material can be used as the scattering material.

关 键 词：质子治疗 束流扩展 单膜散射法 散射角 

分 类 号：O572.341[理学—粒子物理与原子核物理]