Study of a bulk-Micromegas with a resistive anode

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FAN Sheng-Nan, FAN Rui-Rui, WANG Bo, QI Hui-Rong, OUYANG Qun, YI Fu-Ting, ZHAO Tian-Chi, CHEN Yuan-Bo, LIU Mei, LIU Rong-Guang and ZHANG Jian. Study of a bulk-Micromegas with a resistive anode[J]. Chinese Physics C, 2012, 36(9): 851-854. doi: 10.1088/1674-1137/36/9/010
FAN Sheng-Nan, FAN Rui-Rui, WANG Bo, QI Hui-Rong, OUYANG Qun, YI Fu-Ting, ZHAO Tian-Chi, CHEN Yuan-Bo, LIU Mei, LIU Rong-Guang and ZHANG Jian. Study of a bulk-Micromegas with a resistive anode[J]. Chinese Physics C, 2012, 36(9): 851-854.  doi: 10.1088/1674-1137/36/9/010 shu
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Received: 2011-09-14
Revised: 2012-04-17
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Study of a bulk-Micromegas with a resistive anode

    Corresponding author: FAN Sheng-Nan,
    Corresponding author: QI Hui-Rong,

Abstract: The design and performance of a Micromegas with a resistive anode are presented in this paper. A thin resistive sheet with volume resistivity of 1012 Ω·m cm is glued onto the readout electrode surface and its performance is investigated by using a 55Fe X-ray radioactive source in the operation gas of argon and isobutene mixtures (Ar/Iso=95/5). The gas gain at different mesh high voltage, counting rate and working time are given. Energy spectra at different working voltages are measured and the results are discussed. We have oberved that a Micromegas with a resistive anode can be operated at higer gain than a standard Micromegas without sparks.

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