Gas electron multiplier (GEM) operation with tissue-equivalent gases at various pressures
Gas electron multiplier (GEM) operation with tissue-equivalent gases at various pressures
复制标题
在不同压力下使用组织等效气体进行气体电子倍增器 (GEM) 操作
DOI：
10.1016/s0168-9002(03)01374-3
复制
发表时间：
2003
影响因子：
1.4
通讯作者：
C. Eijk
中科院分区：
文献类型：
--
作者：
M. Farahmand;A. Bos;C. Eijk
我们研究了两种不同的气体电子倍增器(GEM)结构在甲烷和丙烷基组织当量(TE)气体中从0.1到1atm的不同压力下的工作。这项工作的目的是探索将宝石用于新型组织等效正比计数器的可能性。在甲烷基TE气体中，宝石的最大安全增益为1.5×103，而在丙烷基TE气体中，最大安全宝石增益为6×103。这些最大值是在不同的气体压力下达到的，这取决于宝石结构和TE气体。此外，我们还观察到创业板收益在稳定之前有所下降。充电/极化效应可以解释这一点。
We have studied the operation of two different Gas Electron Multiplier (GEM) structures in both methane and propane based Tissue-Equivalent (TE) gases at different pressures varying from 0.1 to 1atm. This work was motivated to explore the possibility of using a GEM for a new type of Tissue Equivalent Proportional Counter. In methane based TE gas, a maximum safe GEM gain of 1.5×103has been reached while in propane based TE gas this is 6×103. These maxima have been reached at different gas pressures depending on GEM structure and TE gas. Furthermore, we observed a decrease of the GEM gain in time before it becomes stable. Charge up/polarisation effects can explain this.