A Compact Gas Čerenkov Detector with Novel Optics
نویسندگان
چکیده
We discuss the design and performance of a threshold Cerenkov counter for identiication of charged hadrons. The radiator is pressurized gas, which is contained in thin-walled cylindrical modules. A mirror system of novel design transports Cerenkov photons to photomultiplier tubes. This system is compact, contains relatively little material, and has a large fraction of active volume. A prototype of a module designed for the proposed CLEO III detector has been studied using cosmic rays. Results from these studies show good agreement with a detailed Monte Carlo simulation of the module and indicate that it should achieve separation of pions and kaons at the 2.5-3.0 level in the momentum range 0.8-2.8 GeV/c. We predict performance for speciic physics analyses using a GEANT-based simulation package.
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