一种改善饼状云母端窗式GM管X、γ辐射响应特性的能量补偿方法  

An energy compensation method to improve the X、γ radiation response characteristic to cake-shaped mica windows GM tube

作　　者：胡崇庆 袁杰[1] 孙训[1] 白雪[1] Hu Chongqing;Yuan Jie;Sun Xun;Bai Xue(Shanghai Institute of Measurement and Testing Technology)

机构地区：[1]上海市计量测试技术研究院

出　　处：《上海计量测试》2023年第2期28-30,共3页Shanghai Measurement and Testing

摘　　要：盖革-弥勒计数管(GM管)是一种常用于X、γ射线测量的气体探测器,在X射线低能段存在过响应,需要作能量补偿,补偿片材料与空隙尺寸是能量补偿方法设计的关键因素。参照柱状GM管的补偿方法,设计饼状云母端窗式GM管能量补偿方法,采用铜环铅环锡环铜片紧贴在一起(铜片在GM管探测面)组成的叠加式补偿片,安装在云母端窗式GM管探测面前端,可使其能量响应性能满足JJG 393-2018的技术要求。The Geiger-Miller counter tube(GM tube) is a commonly used type of X-γ the gas detector for X-ray measurement has over response in the low energy range of X-rays,and energy compensation is required.The compensation material and gap size are key factors in the design of energy compensation methods.Referring to the compensation method of cylindrical GM counter tubes,a cake shaped mica end window type GM tube energy compensation method is designed.A superimposed compensation plate composed of copper rings,lead rings,tin rings,and copper plates is tightly attached to the GM tube detection surface.It is installed at the front end of the mica window GM tube detection surface,and its energy response performance can meet the technical requirements of JJG 393-2018.

关 键 词：X、γ射线 云母端窗式GM管 能量响应 

分 类 号：TL811.3[核科学技术—核技术及应用]