Development of MRPC technology for STAR-TOF

ADVANCED NUCLEAR INSTRUMENTATION AND DETECTION

Development of MRPC technology for STAR-TOF

SUN Yong-Jie，

LI Cheng，

SHAO Ming，

CHEN Hong-Fang，

G. EPPLEY，

F. GEURTS，

H. HUANG，

HUANG Sheng-Li，

W.J. LIOPE，

T. NUSSBAUM，

RUAN Li-Juan，

J. SCHAMBACH，

WANG Xiao-Lian，

WU Jian，

Z. XU

Nuclear Science and Techniques

Vol.16, No.4

pp.231-237

Published in print 01 Aug 2005

CLC：TL811

35302

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.

Multi-gap resistive plate chamber (MRPC)Time of flight(TOF)Particle identification(PID)Solenoidal trackerRelativistic heavy ion collider (RHIC)

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