管壁腐蚀对γ透射法测油垢厚度响应的影响  

Influence of Tube Wall Corrosion on Measuring Response of Grease Stain Thickness Using γ-Ray Transmission Method

作　　者：刘圣康[1] 王世亨[2] 丁小平[1] 丁杰[1] 时飞跃[1] 

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

出　　处：《原子能科学技术》2005年第4期354-356,共3页Atomic Energy Science and Technology

基　　金：国家自然科学基金资助项目(19965001)

摘　　要：研究了利用γ射线透射幅度谱测量油垢时管壁腐蚀对响应的影响。模拟实验装置由137Csγ射线的准直束、NaI(Tl)探测器和BH1224多道谱仪组成。结果表明:对数响应与油垢厚度呈线性关系,测量油垢厚度准确度为1mm;对数响应与管壁腐蚀间也呈线性关系,测量管壁腐蚀准确度为0.1mm。The influence of the wall corrosion on measuring the response of the grease stain thickness using the amplitude spectrum of the transmitted γ-ray is reported. The simulated experimental device consists of the collimating beam of 137Cs γ-rays, the NaI (Tl) detector, and the BH1224 multi-channel spectrometer. The experiment result indicates that the linear relation is presented between the logarithm response and the grease stain thickness. The measuring accuracy of the grease stain thickness is 1 mm. The linear relation is also presented between the logarithm response and the tube wall corrosion. The measuring accuracy of the tube wall corrosion is 0.1 mm.

关 键 词：γ透射 油垢厚度 管壁腐蚀 

分 类 号：O571.323[理学—粒子物理与原子核物理]