核燃料元件表面污染检测系统研究  

Study on Detection Technology of Nuclear Fuel Component Surface Uranium Contamination

作　　者：许贵平[1] 孙大朋[1] 杨帆[1] 

机构地区：[1]中国核动力研究设计院四所,成都610041

出　　处：《核电子学与探测技术》2014年第6期766-769,共4页Nuclear Electronics & Detection Technology

摘　　要：开展针对燃料元件表面污染检测系统的研究,分析表面污染检测的主要原理,并建立检测系统。通过对表面α标准源测试实验数据分析,获得检测系统的测量不确定度;实际的检测结果表明:采用α—计数法的检测系统稳定可靠,探测效率高,能够实现1.5 m长燃料元件的表面污染检测。Detection technology of fuel component surface uranium contamination is studied,the main principle of detection of surface contaminationis analyzed andadetection system is established.Through the analysis on the experimental data of surface alpha standard test,the measurement uncertainty of the detection system has been obtained;the testing results show that：the alpha-counting method for detecting fuel element surface uranium contamination is stable and reliable,and the device has the advantages of high sensitivity,short measurement time,and simple operation.This method can satisfy the requirements for actual fuel component surface uranium contamination measurement.

关 键 词：燃料元件 表面污染检测 α—计数法 

分 类 号：TH843[机械工程—仪器科学与技术]