Application of CMOS charge-sensitive preamplifier in triple-GEM detector  

作　　者：LAI Yong-Fang DENG Zhi LI Yu-Lan LIU Yi-Nong LI Yuan-Jing LI Jin 

机构地区：[1]Department of Engineering Physics, Tsinghua University, Beijing 100084, China [2]Institute of High Energy Physics, the Chinese Academy of Sciences, Beijing 100049, China [3]Institute of Chemical Defense, PLA, Beijing 102205, China

出　　处：《Nuclear Science and Techniques》2006年第5期289-292,共4页核技术（英文）

基　　金：Supported by NSFC (10575063)

摘　　要：Among the various micro-pattern gas detectors (MPGD) that are available, the gas electron multiplier (GEM) detector is an attractive gas detector that has been used in particle physics experiments. However, the GEM detector usually needs thousands of preamplifier units for its large number of micro-pattern readout strips or pads, which leads to considerable difficulties and complexities for front end electronics (FEE). Nowadays, by making use of complementary metal-oxide semiconductor (CMOS)-based application specific integrated circuit (ASIC), it is fea- sible to integrate hundreds of preamplifier units and other signal process circuits in a small-sized chip, which can be bound to the readout strips or pads of a micro-pattern particle detector (MPPD). Therefore, CMOS ASIC may provide an ideal solution to the readout problem of MPPD. In this article, a triple GEM detector is constructed and one of its readout strips is connected to a CMOS charge-sensitive preamplifier chip. The chip was exposed to an 55Fe source of 5.9 keV X-ray, and the amplitude spectrum of the chip was tested, and it was found that the energy resolution was approximately 27%, which indicates that the chip can be used in triple GEM detectors.Among the various micro-pattern gas detectors （MPGD） that are available, the gas electron multiplier （GEM） detector is an attractive gas detector that has been used in particle physics experiments. However the GEM detector usually needs thousands of preamplifier units for its large number of micro-pattern readout strips or pads, which leads to considerable difficulties and complexities for front end electronics （FEE）. Nowadays, by making use of complementary metal-oxide semiconductor （CMOS）-based application specific integrated circuit （ASIC）, it is feasible to integrate hundreds of preamplifier units and other signal process circuits in a small-sized chip, which can be bound to the readout strips or pads of a micro-pattern particle detector （MPPD）. Therefore, CMOS ASIC may provide an ideal solution to the readout problem of MPPD. In this article, a triple GEM detector is constructed and one of its readout strips is connected to a CMOS charge-sensitive preamplifier chip. The chip was exposed to an 55Fe source of 5.9 keV X-ray, and the amplitude spectrum of the chip was tested, and it was found that the energy resolution was approximately 27%, which indicates that the chip can be used in triple GEM detectors.

关 键 词：气体电子倍增管探测器 互补金属氧化物半导体 专用集成电路 CMOS电路 电荷灵敏前置放大器 能量分辨率 

分 类 号：TN152[电子电信—物理电子学]