近水平入射康普顿锐角散射法测油垢厚度的模拟实验研究  

Simulated experimental studies on measuring grease stain thickness in oil pipeline by quasi-parallel incident acute angle scattering

作　　者：买买提·买买提热夏提[1] 阿不列木·艾尔肯[1] 赵经武[2] 卡地尔·阿布都莫明[1] 王世亨[1] 刘圣康[2] 时飞跃[2] 夏尔丁·甫尔开提[1] 

机构地区：[1]新疆大学物理系,乌鲁木齐830046 [2]南京大学物理系,南京210093

出　　处：《核技术》2008年第8期587-590,共4页Nuclear Techniques

基　　金：国家自然科学基金(10565003)资助;新疆大学校院联合项目(070195)

摘　　要：用石蜡模拟油垢,60Co放射源的平均能量为1.25MeV的γ射线近水平入射,以一定的散射角接收散射γ光子数,发现散射γ计数与被测石蜡厚度之间存在线性关系。本实验测得石蜡厚度的最佳测量灵敏度为1181/mm,其线性相关系数为0.9909。Paraffin layers under a steel plate were used to simulate oil crust in pipelines by detecting scattered γ-rays in different solid angles from a ^60Co source, which irradiated the specimen in quasi-parallel incidence. A linear relationship was obtained between the counting rates of the scattering γ-rays and the paraffin thickness. The best sensitivity of measurement is 1181/mm, with the linearitv coefficient of 0.9909

关 键 词：γ光子数 康普顿散射 油垢厚度 

分 类 号：O571.323[理学—粒子物理与原子核物理]