Study of RPC gas composition using Daya Bay RPCs

MA Lie-Hua; WANG Yi-Fang; ZHANG Jia-Wen; Logan Lebanowski; Viktor Pec; XU Guang-Hua; CHEN Jin; XIE Yu-Guang; HAN Ji-Feng; ZHANG Qing-Min; QIAN Sen; NING Zhe

doi:10.1088/1674-1137/34/8/015

Chinese Physics C> 2010, Vol. 34> Issue(8) : 1116-1121 DOI: 10.1088/1674-1137/34/8/015

Study of RPC gas composition using Daya Bay RPCs

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Abstract：
This study uses Daya Bay RPCs operating in streamer mode to investigate gas mixtures of at least 50% argon, at most 6% isobutane, and with small amounts of SF₆. Isobutane is reduced to 2% without degradation of performance, and SF₆ reduces the noise rate and current, as well as the signal size. This study provides quantitative relationships between basic RPC operating parameters and various gas compositions.

References

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Santonico R et al.Nucl.Instrum.Methods A,1981,187:377[2] BABAR.Technical Design Report,SLAC-R-95-457,March 1995[3] BELLE collaboration.Technical Design Report,KEK Report 95-1,April 1995[4] Guler M et al.CERN/SPSC 2000-028,SPSC/P318,LNGS P25/2000,July 10,2000; Guler M et al.CERN/SPSC 2001-025,SPSC/M668,LNGS-EXP 30/2001 Add.1/01,August 21,2001[5] ALICE collaboration.CERN/LHCC 99-22,13 August 1999[6] ATLAS Muon collaboration.CERN/LHCC 97-22,5 June 1997[7] CMS collaboration.CERN/LHCC 97-32,15 December 1997[8] The BESⅢ detector,IHEP-BEPCII-SB-13,IHEP,Beijing[9] ZHANC J et al.Nucl.Instrum.Methods A,2005,540:102[10] ZHANG J et al.High Energy Phys.Nucl.Phys.,2003,27(7):615(in Chinese)[11] HAN J et al.Nucl.Instrum.Methods A,2007,577:552[12] XIE Y et al.Nucl.Instrum.Methods A,2009,599:20[13] Daya Bay collaboration,arXiv:hep-ex/0701029,2007[14] ZHANG Q et al.Nucl.Instrum.Methods A,2007,583:278[15] Band H R et al.Nucl.Instrum.Methods A,2008,594:33[16] Abe K et al.Nucl.Instrum.Methods A,2000,455:397[17] Aielli G et al.Nucl.Instrum.Methods A,2002,493:137[18] ZHANG J et al.Chinese High Energy Phys.Nucl.Phys.,2003,27(11):1019(in Chinese)

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MA Lie-Hua, WANG Yi-Fang, ZHANG Jia-Wen, Logan Lebanowski, Viktor Pec, XU Guang-Hua, CHEN Jin, XIE Yu-Guang, HAN Ji-Feng, ZHANG Qing-Min, QIAN Sen and NING Zhe. Study of RPC gas composition using Daya Bay RPCs[J]. Chinese Physics C, 2010, 34(8): 1116-1121. doi: 10.1088/1674-1137/34/8/015

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Received: 2009-10-23
Revised: 2010-01-28

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沈阳化工大学材料科学与工程学院沈阳 110142

Study of RPC gas composition using Daya Bay RPCs

Corresponding author: MA Lie-Hua,

Received Date: 2009-10-23
Accepted Date: 2010-01-28
Available Online: 2010-08-05

Abstract:

This study uses Daya Bay RPCs operating in streamer mode to investigate gas mixtures of at least 50% argon, at most 6% isobutane, and with small amounts of SF₆. Isobutane is reduced to 2% without degradation of performance, and SF₆ reduces the noise rate and current, as well as the signal size. This study provides quantitative relationships between basic RPC operating parameters and various gas compositions.