软件延迟符合法分辨氡同位素的仿真研究  

Simulation of Discriminating Radon Isotopes Using Software Delayed Coincidence Counter

作　　者：颜拥军[1] 孟冶成[1] 王喜宗[1] 

机构地区：[1]南华大学核科学技术学院,湖南衡阳421001

出　　处：《同位素》2010年第2期102-106,共5页Journal of Isotopes

基　　金：湖南省科技厅资助项目(2008TP4009-2)

摘　　要：本工作以MATLAB软件仿真的方式,探索用软件方法实现延迟符合法分辨氡同位素;并改变延迟时间和开门时间寻找较好的分辨效果。结果显示,该方法可降低测量成本,延迟时间调整方便,并可用于低水平活度氡同位素测量。Logic delayed circuit is an important method of discriminating radium isotopes by indirectly measuring radon isotopes.Based on the theorem of delayed-coincidence system,a method of software delay coincidence discriminating radon isotopes were proposed.The uncertainties of different delay time and gate time were studied.The results showed the optimum parameters.The software method is a alternative to hardware,it can significantly reduce the cost and also offers convenience and flexibility.At the same time,this method can be used in radon isotope measurement of low activity.

关 键 词：氡同位素 氡子体 软件延迟符合法 仿真 

分 类 号：TL822[核科学技术—核技术及应用]