Study of a bulk-Micromegas with a resistive anode

The design and performance of a Micromegas with a resistive anode are presented in this paper. A thin resistive sheet with volume resistivity of 10^12 Ω·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...

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Published inChinese physics C Vol. 36; no. 9; pp. 851 - 854
Main Author 范胜男 樊瑞睿 王波 祁辉荣 欧阳群 伊福廷 赵天池 陈元柏 刘梅 刘荣光 张建
Format Journal Article
LanguageEnglish
Published 01.09.2012
Subjects
Anodes
Counting
Electric potential
Electrical resistivity
Electrodes
Gain
Voltage
体积电阻率
堆积
工作时间
工作电压
电阻式
电阻片
阳极
高压气体
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ISSN1674-1137
0254-3052
DOI10.1088/1674-1137/36/9/010

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Summary:The design and performance of a Micromegas with a resistive anode are presented in this paper. A thin resistive sheet with volume resistivity of 10^12 Ω·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.
Bibliography:The design and performance of a Micromegas with a resistive anode are presented in this paper. A thin resistive sheet with volume resistivity of 10^12 Ω·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.
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 ZHANG Jian（1.Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China 2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China 3 State Key Laboratory of Particle Detection and Electronics, Beijing 100049, China 4 Department of Physics, University of Washington, Seattle, WA98195, USA）
11-5641/O4
Micromegas, resistive anode, sparks, gas gain
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1674-1137
0254-3052
DOI:10.1088/1674-1137/36/9/010