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説明
A large cylindrical transition radiation detector has been constructed as a part of the Venus detector for the TRISTAN e/sup +/e/sup -/ collider. It was designed to supplement the e/ pi separation capability of the lead glass calorimeter. The detector has a total of 2688 channels of readout electronics. The electronics uses the method of charge amplifier-trapezoidal shaping. Each TKO board contains 32 channels of shaper-gated integrators and a 12 bit analog-to-digital converter. The circuit has typically an 11 b linearity. The gas gain of each X-ray chamber is kept constant within +or-1% by monitoring 5.9 keV X-ray signals of an /sup 55/Fe source. The system has been operating for about a year and works well. The TRD gives a pion rejection factor of 13+or-3 for 90% electron efficiency and 30+or-3 for 80% electron efficiency. >
収録刊行物
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- IEEE Transactions on Nuclear Science
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IEEE Transactions on Nuclear Science 40 615-620, 1993-08-01
Institute of Electrical and Electronics Engineers (IEEE)
