POSITION AND TIMING RESOLUTION OF INTERPOLATING CATHODE STRIP CHAMBERS IN A TEST BEAM

Design and construction details are presented of a four-layer, positio n sensitive, cathode strip chamber and a low cost, highly multiplexed readout system based on monolithic circuit technology that are well su ited for a muon detector at future hadron colliders. Track location is determined by interpolation of the cathode induced charge, using a ne w design with intermediate strips between readout nodes to reduce the number of channels and improve position resolution and linearity, Resu lts are reported from tests with an Fe-55 source and a 300 GeV/c muon beam in RD5 at CERN. The beam test demonstrated position resolution of 40 mu m per layer which is less than 1% of the readout pitch, The tim ing resolution for the entire four-layer detector was 3.6 ns r.m.s. wh ich is adequate for fully efficient beam crossing identification in an LHC experiment.