Development of MRPC technology for STAR-TOF

查看全文 作　　者：SUN Yong-[1]Jie;LI [1]Cheng;SHAO [1]Ming;CHEN Hong-[1]Fang;G. [2]EPPLEY;[2]F.GEURTS;H. [3]HUANG;HUANG Sheng-[1]Li;W.J. [2]LIOPE;T. [2]NUSSBAUM;RUAN Li-[1]Juan;J. [5]SCHAMBACH;WANG Xiao-[1]Lian;WU [1]Jian;Z. [4]XU 机构地区：[1]Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China;[2]Rice University, Bonner Nuclear Lab, Houston, TX 77005, USA;[3]University of California- Los Angeles, Los Angeles, CA90095, USA;[4]Brookhaven National Laboratory, Upton, New York 11973, USA;[5]University of Texas, Austin, TX 78712, USA) 出　　处：《Nuclear Science and Techniques》索引2005年第16卷第4期,共7页 基　　金：Supported by National Foundation of Natural Sciences of China (10375062) 摘　　要：A prototype of multi-gap resistive plate chamber (MRPC) modules with 6 gas gaps of 220 μm used for the time-of-flight (TOF) detectors has been developed by STAR TOF group. A tray (TOFr) composed of 28 MRPC modules was constructed and operated in STAR for the d+Au collisions and Au+Au collisions during 2003 RHIC and 2004 RHIC run. Results show its time resolution is 85 ps with the average efficiency of 95% and clear identification of K/π up to 1.6 GeV and proton/ K up to 3.0 GeV. 关 键 词：MRPC技术 STAR-TOF RHIC PID 气体电力探测技术