Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2006, Vol. 17 ›› Issue (5): 289 doi: 10.1016/S1001-8042(06)60054-7


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

LAI Yong-Fang1,3,* DENG Zhi1 LI Yu-Lan1 LIU Yi-Nong1 LI Yuan-Jing1 LI Jin1,2   

  1. 1Department of Engineering Physics, Tsinghua University, Beijing 100084, China;
    2Institute of High Energy Physics, the Chinese Academy of Sciences, Beijing 100049, China;
    3Institute of Chemical Defense, P.L.A, Beijing 102205, China
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LAI Yong-Fang DENG Zhi LI Yu-Lan LIU Yi-Nong LI Yuan-Jing LI Jin. Application of CMOS charge-sensitive preamplifier in triple-GEM detector.Nuclear Science and Techniques, 2006, 17(5): 289     doi: 10.1016/S1001-8042(06)60054-7

Abstract: 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.

Key words: GEM detector, CMOS ASIC, Charge-sensitive preamplifier, Energy resolution