环形(位置灵敏)充气探测器及其在重离子物理实验中的应用  

Ring (Position Sensitive) Gas Filled Detector and Its Application in Heavy Ion Physics Experiment

作　　者：谭继廉[1] 张金霞[1] 王素芳[1] 靳根明[1] 邬恩九[1] 张纯[1] 宋明涛[1] 郑纪文[1] 钱兴[2] 江栋兴[2] 华辉[2] 钱涛[2] 

机构地区：[1]中国科学院近代物理研究所 [2]北京大学技术物理系

出　　处：《核电子学与探测技术》1997年第6期412-415,共4页Nuclear Electronics & Detection Technology

基　　金：国家自然科学基金

摘　　要：本文介绍了环形（位置灵敏）充气探测器的结构及性能。在流动的正庚烷气体中得到对２５２Ｃｆ裂变碎片和Ｔｈｃ－ｃ′α粒子的时间分辨分别为４００、５６０ｐｓ，对２５２Ｃｆ的能损分辨约３０％。同时给出了用于４０Ａｒ＋１５９Ｔｂ和４０Ａｒ＋ｎａｔＡｇ系统作反应产物测量和鉴别的部分实验结果。The structure and properties of ring (position sensitive) gas filled detector were described. The time resolution of 400ps and 560ps for 152 Cf fission source and Thc c′ α source, energy loss resolution of 30% and fair position resolution for 152 Cf source were obtained respectively. The ring detector was successfully used to distinguish the projectile likes and the evaporation resdues in 40 Ar(25MeV/u)+ 159 Tb and nat Ag reaction systems. The ring position sensitive detector was successfully used for the on beam correlation measurement between IMF and projectil likes and evaporation residues in 40 Ar(30MeV/u)+ 159 Tb and nat Ag reaction systems to distinguish them. (

关 键 词：环形 位置灵敏 充气探测器 重离子反应 裂变 

分 类 号：TL816.4[核科学技术—核技术及应用] O571.426[理学—粒子物理与原子核物理]