MICROMEGAS: A high-granularity position-sensitive gaseous detector for high particle-flux environments
MICROMEGAS: A high-granularity position-sensitive gaseous detector for high particle-flux environments
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DOI：
10.1016/0168-9002(96)00175-1
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发表时间：
1996-06-21
影响因子：
1.4
通讯作者：
Charpak, G
中科院分区：
文献类型：
--
作者：
Giomataris, Y;Rebourgeard, P;Charpak, G
我们描述了一种新的结构的气体检测器，正在开发中的萨克雷。它包括一个两级平行板雪崩室的小放大间隙（100 μ m）结合转换漂移空间。它遵循雪崩发展过程中产生的正离子的快速去除。在阳极微带平面上收集电子雪崩期间获得快速信号（小于或等于1ns）。正离子信号的持续时间为100 ns。正离子的快速排空与检测器的高粒度相结合，提供了高速率能力。已实现高达10（5）的气体增益。
We describe a novel structure for a gaseous detector that is under development at Saclay. It consists of a two-stage parallel-plate avalanche chamber of small amplification gap (100 mu m) combined with a conversion-drift space. It follows a fast removal of positive ions produced during the avalanche development. Fast signals (less than or equal to 1 ns) are obtained during the collection of the electron avalanche on the anode microstrip plane. The positive ion signal has a duration of 100 ns. The fast evacuation of positive ions combined with the high granularity of the detector provide a high rate capability. Gas gains of up to 10(5) have been achieved.