位置灵敏正比计数器性能研究及其对同步辐射光光强分布的测量  

Study on Characteristics of Position-Sensitive Proportional Counter andthe McMaSurement of Intensity Distribution of Synchrotron Radiation

作　　者：刘鹏[1] 徐清[1] 吴应荣[1] 武家杨 郑文莉[1] 李士[1] 邵涵如[1] 

机构地区：[1]中科院高能物理所

出　　处：《核电子学与探测技术》1996年第4期290-294,共5页Nuclear Electronics & Detection Technology

摘　　要：我们对Ｂａｋｇａｍｍｏｎ型高气压流气式位置灵敏正比计数管的基本性能进行了研究。结果表明，其位置分辨率约为１００μｍ；线性良好，在计数器中部４７．５、４０和３０ｍｍ范围内，位置线性均方误差分别为７６、４７．３和１１．６μｍ；对铁、铜和锌特征Ｘ射线的绝对探测效率分别为６８．５％、５９．９％和５２．４％，与理论计算值相符，在整个探测器长度上探测效率分布比较均匀；与移动平台等构成的探测系统的重复定位精度好于１０μｍ。在此基础上，测量了高能物理所同步辐射实验室４Ｗ１Ｃ漫散射站聚焦单能Ｘ射线的光强分布。In this paper we studied the basic characteristics of a backgammon type high presure gas flow position-sensitive proportional counter(PSPC ).The results showed that the PSPC had good positon linearity,themean error were 76,47.3 and 11.6μm within the central area of 47.5,40 and 30 cm. The positional resolu-tion of the PSPC was about 100μm.Its measuremented detective efficiency for the characteristic X-rayfrom Fe,Cu and Zn were 68.5%、59. 9%and 52. 4%respectively,which were well accorded with the theo-retical values.We also discribed the application of PSPC in testing the intensity distribution of synchrotron ra-diation.(

关 键 词：位敏 正比计数器 性能研究 光强分布 同步辐射 

分 类 号：TL811.2[核科学技术—核技术及应用]