Study of Performance of MRPC with Different Gas Mixtures

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SHAO Ming, CHEN Hong-Fang, LI Cheng, WANG Xiao-Lian, HUANG Sheng-Li, LI Jie, RUAN Li-Juan, WU Jian, XU Zi-Zong and WANG Zhao-Min. Study of Performance of MRPC with Different Gas Mixtures[J]. Chinese Physics C, 2004, 28(7): 733-737.
SHAO Ming, CHEN Hong-Fang, LI Cheng, WANG Xiao-Lian, HUANG Sheng-Li, LI Jie, RUAN Li-Juan, WU Jian, XU Zi-Zong and WANG Zhao-Min. Study of Performance of MRPC with Different Gas Mixtures[J]. Chinese Physics C, 2004, 28(7): 733-737. shu
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Received: 2003-10-27
Revised: 1900-01-01
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Study of Performance of MRPC with Different Gas Mixtures

    Corresponding author: SHAO Ming,
  • Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China2 Rice University,Houston,TX 77005-1892,USA3 University of Texas,Austin,TX 78712,USA

Abstract: A prototype with 28 modules of 168-channel multi-gap resistive plate chamber (MRPC) time-of-flight system for the STAR experiment at RHIC was built, and its 12 modules (72 readout channels) equipped with read out electronics were tested for 10 weeks at the AGS, BNL from February 2002. The working gas mixtures have significant influence on the performance of MRPC. Several gas mixtures such as 90% C2H2F4+5%iso-C4H10+5%SF6,95.3%C2H2F4+4.7%iso-C4H10 and 100% C2H2F4 were tested. The results on detection efficiency, time resolution and streamer probability are presented.

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