阵列背散射成像有机物加亮效应的仿真分析  

Simulation Analysis of Highlighting Effect Of Organic Materials In Compton Backscatter Imaging system with detector array

作　　者：王振涛[1] 吴志芳[1] 王立强[1] 周立业[1] 

机构地区：[1]清华大学核能与新能源研究院,北京100084

出　　处：《核电子学与探测技术》2008年第1期113-117,共5页Nuclear Electronics & Detection Technology

基　　金：国家自然科学基金重点项目(60332040)

摘　　要：由于探测器对散射点所张立体角受到限制,在阵列背散射成像中实现有机物加亮效应相对困难。本文通过蒙特卡罗仿真方法,对这一问题进行研究,指出了实现或增强加亮效应的三种解决途径———改变探测器位置、改变探测器工作方式和选择合适的入射射线能量,并提出一种阵列背散射装置的构想。Because of the limitation of solid angle of detector at the scattering point, it is difficult to achieve the highlighting effect of organic materials in Compton backscatter imaging system with detector array. This paper studies the problem with Monte Carlo simulation method and indicates three solutions including changing the angle of detecting, changing the working mode of detector and selecting the appropriate energy of incident ray. In the end, this paper suggests a new Compton backscatter imaging system.

关 键 词：阵列康普顿背散射 有机物加亮效应 蒙特卡罗 

分 类 号：O57[理学—粒子物理与原子核物理]