Author/Authors :
Ahn، نويسنده , , S.H. and Amirikas، نويسنده , , R and Bahk، نويسنده , , S.Y and Baik، نويسنده , , K.M and Gapienko، نويسنده , , V.A. and Hong، نويسنده , , B and Hong، نويسنده , , S.J. and Kim، نويسنده , , Jy-Yeon Kim، نويسنده , , Y.J. and Kim، نويسنده , , Y.U. and Koo، نويسنده , , D.G. and Lee، نويسنده , , K.S. and Lee، نويسنده , , Kojo S.J. and Lim، نويسنده , , I.T and Nam، نويسنده , , S.K. and Pac، نويسنده , , M.Y and Park، نويسنده , , S and Rhee، نويسنده , , J.T. and Seo، نويسنده , , S.W an، نويسنده ,
Abstract :
We present the results from cosmic ray tests on the forward Resistive Plate Chamber (RPC) for the CMS. Double-gap prototype RPC were built and tested in the Korea Detector Laboratory (KODEL). We found that addition of SF6 and water vapor to the tetrafluorethane-based gas mixture was required for the long-term stable operation of RPC. Efficiency, time resolution as well as cross-talk behavior of the detector were investigated. In addition, we present the temperature and humidity dependence of bulk resistivity of Korean bakelite in detail.
Keywords :
SF6 , Double-gap RPC , Water vapor , CMS
