Micromegas探测器计数曲线、增益以及能量分辨特性的研究  

Study on the count plateau, gas gain and energy resolution of the Micromegas detectors

作　　者：张小东[1] 杨贺润[2] 段利敏[1] 徐瑚珊[1] 胡碧涛[2] 李春艳[1] 李祖玉[1] 

机构地区：[1]中国科学院近代物理研究所,兰州730000 [2]兰州大学核科学与技术学院,兰州730000

出　　处：《物理学报》2008年第4期2141-2144,共4页Acta Physica Sinica

摘　　要：介绍了自行研制的Micromegas探测器的基本结构和工作原理.在不同工作气体(Ar和CO2)配比条件下,利用55Fe放射源对该探测器的能量分辨、计数曲线和气体增益等特性进行了较为详尽的测试.对相关结果进行了讨论.In this paper, we describe the structure of Micromegas （micro mesh gaseous structure） detector which has been developed recently by our group. And its count plateau, gas gain and energy resolution in the condition of a ^55Fe X-ray source and various Ar-CO2 mixtured gases are plotted as functions of mesh voltage. Based on the experimental results, we confirm that we have mastered the technique of fabricating this kind of detector with high energy resolution and excellent performance.

关 键 词：Micromegas探测器 计数曲线 能量分辨率 增益 

分 类 号：TL811[核科学技术—核技术及应用]