Progress of R and D and production of timing RPCs in Tsinghua University

Multi-gap resistive plate chamber (MRPC) is a new kind of gas detector. It has good time resolution and high efficiency and has been adopted to construct the full barrel time-of-flight (TOF) detector for the STAR experiment at RHIC. The high rate TOF of CBM is also proposed to be assembled with MRPCs. Tsinghua University is a collaboration member of the two experiments and has made substantial progress on the R and D and production of MRPC. In this paper, we describe the development of low-resistivity glass and high rate MRPC, and the development of 1 m long counter is also described.