Author/Authors :
Yang، نويسنده , , S. and Sun، نويسنده , , Y.J. and Li، نويسنده , , C. and Heng، نويسنده , , Y.K. and Qian، نويسنده , , S. and Chen، نويسنده , , H.F. and Chen، نويسنده , , T.X. and Dai، نويسنده , , H.L. and Fan، نويسنده , , H.H. and Liu، نويسنده , , S.B. and Liu، نويسنده , , S.D. and Jiang، نويسنده , , X.S. and Shao، نويسنده , , M. and Tang، نويسنده , , Z.B. and Zhang، نويسنده , , H. and Zhao، نويسنده , , Z.G.، نويسنده ,
Abstract :
In order to further enhance the particle identification capability of the Beijing Spectrometer (BESIII), it is proposed to upgrade the current end-cap time-of-flight (eTOF) detector with multi-gap resistive plate chamber (MRPC). The prototypes, together with the front end electronics (FEE) and time digitizer (TDIG) module have been tested at the E3 line of Beijing Electron Positron Collider (BEPCII) to study the difference between the single and double-end readout MRPC designs. The time resolutions (sigma) of the single-end readout MRPC are 47/53 ps obtained by 600 MeV/c proton/pion beam, while that of the double-end readout MRPC is 40 ps (proton beam). The efficiencies of three MRPC modules tested by both proton and pion beam are better than 98%. For the double-end readout MRPC, no incident position dependence is observed.
Keywords :
Double-end readout , Single-end readout , End-cap TOF , BESIII , Multi-gap resistive plate chamber
