Author/Authors :
Chung، نويسنده , , C.H. and Kim، نويسنده , , D.H. and Kim، نويسنده , , M.J. and KIM، نويسنده , , M.S. and Kong، نويسنده , , D.J. and Park، نويسنده , , K.H. and Shim، نويسنده , , H.S. and Yun، نويسنده , , C.W.، نويسنده ,
Abstract :
We report recent results on performances of 2 mm double-gap RPC operated with the CERN SPS X5 120 GeV muon beams under high rate 137Cs irradiation. We obtained the efficiency and time resolution and other related physical parameters. This was done for a three component gas mixture: (C2H2F4 : iso-C4H10 : SF6=95.5% : 3.0% : 1.5%). The best results were obtained under these conditions and the RPC prototype fulfilled all requirements as muon trigger for LHC.