Absolute electron transfer efficiency of GEM

被引：13

作者：

Richter, C

Breskin, A ^{[1
]}

Chechik, R

Garty, G

Sharma, A

机构：

[1] Weizmann Inst Sci, Dept Particle Phys, IL-76100 Rehovot, Israel

[2] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2001年 / 461卷 / 1-3期

基金：

以色列科学基金会;

关键词：

GEM; electron transfer; collection efficiency;

D O I：

10.1016/S0168-9002(00)01159-1

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We report on the absolute single-electron transfer efficiency of a Gas Electron Multiplier (GEM). It is shown that the electron transfer and thus the detection efficiency, depend not only on the GEM geometry and gain but mostly on the electric field and electron diffusion in the gas volume preceding the GEM. We have demonstrated that conditions can be found, including pre-amplification of the single electrons in the gap preceding the GEM, in which full detection efficiency is obtained. The experimental electron transfer efficiency results are confirmed by Monte Carlo simulations. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

收藏

页码：38 / 41

页数：4

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