Time-To-Count测量方法在辐射检测中的应用  

Application of Time-To-Count Measurement in the Radiation Detection

作　　者：王攀[1] 王晓琼[1] 方方[1] 焦欢欢[1] 徐宏坤[1] 

机构地区：[1]成都理工大学应用核技术与自动化工程学院,成都610059

出　　处：《核电子学与探测技术》2009年第2期477-479,246,共4页Nuclear Electronics & Detection Technology

摘　　要：以脉冲计数形式作总量测量的核辐射探测器,死时间是影响探测效率的主要因素。为减少测量误差,必须对测量系统分辨率进行确定或者对死时间进行校正,这是一件很复杂的工作,而且不能从根本上解决死时间问题。文章首先讨论了Time-To-Count测量方法的理论基础,给出计算辐射强度的估计公式R=k/t(k为常数),在此基础上提出了一套Time-To-Count测量方法的试验方案。最后用传统方法与Time-To-Count测量方法进行了测量比较,得出了试验结果。In the form of pulse count for measuring the total amount of nuclear radiation detectors, dead time is a major factor of the detection efficiency. In order to reduce measurement error, the measurement system must be carried out to determine resolution or correction of dead time, it is a very complicated task and can not fundamentally solve the problem of dead time. This paper discussed the theoretical basis of the Time-To-Count measuring method, given the estimated calculation of radiation formula R= k / t （k is a constant）, and on this basis, a test scheme of Time-To-Count Measurement. Finally, Comparison of traditional method and Time-To-Count measurement measuring method, the results obtained.

关 键 词：G-M管Time-To-Count 

分 类 号：O57[理学—粒子物理与原子核物理]