Simulation results on a resistive plate chamber for a bakelite thickness of 1mm up to 3mm

Abstract

The performance of bakelite electrodes with thicknesses of 1, 2, and 3mm in a double-gap resistive plate chamber (RPC) have been tested by GEANT-based Monte Carlo simulation. Results show that the thickness of bakelite plays an important role in detecting particle signals. For checking the efficiency of these RPCs, gamma particles in the range 0.01–100MeV have been simulated through different bakelite setups. For an isotropic gamma source, a sensitivity sγ<3.5×10−2 at <100MeV by a 1mm bakelite double-gap RPC has been observed. For the same gamma source with a 2mm bakelite RPC, a sensitivity sγ<4.0×10−2 at <100MeV has been measured, whereas for 3mm bakelite RPC, sensitivity results were sγ<4.44×10−2 at <100MeV. Similar characteristics of bakelite electrodes have been observed for a parallel gamma source configuration.