快中子散射测量油垢厚度的MCNP模拟  

MCNP Simulation of Measuring the Thickness of Oil Crust Using Fast Neutron

作　　者：李长园[1] 艾尔肯.阿不列木[1] 赵经武[2] 马加一[2] 马小强[1] 涂传火[1] 阿不都莫明[1] 周满[1] 

机构地区：[1]新疆大学物理科学与技术学院,新疆乌鲁木齐830046 [2]南京大学物理系,江苏南京210093

出　　处：《新疆大学学报（自然科学版）》2010年第4期453-456,共4页Journal of Xinjiang University(Natural Science Edition)

基　　金：国家自然科学基金项目;项目编号:10965007

摘　　要：利用MCNP模拟,探究探测器所处角度、点源距离和探测器距离三者对中子散射计数与油垢厚度响应关系的影响.模拟结果表明:探测器置于135°角时散射中子计数对油垢厚度的响应关系最明显(灵敏度最高).点源距离和探测器距离越近,散射中子计数对油垢厚度的响应关系越明显.In this article, The MCNP was used to simulate the change of response relation between scattered neutron counts and grease stain thickness when the angle of detector or the distance of source or the distance of detector was changed. The result of simulation indicates that the sensibility is highest when the angle of detector is 135°,and the sensibility rises when the distance of source or the distance of detector is shortened.

关 键 词：MCNP模拟 散射中子 探测器角度 源距 探测器距离 

分 类 号：O571.323[理学—粒子物理与原子核物理]