The D0 transition radiation detector
1988
Abstract The transition radiation detector (TRD) for the D0 experiment is currently under construction at Saclay. The first part of this paper reports on the tests performed with a prototype detector at the CERN PS. Chamber operation was studied with xenon gas and small additions of CO 2 , CH 4 , or isobutane as quenchers. X-ray yields from lithium and polypropylene radiators were compared, with different analysis methods. The second part describes the design and construction of the cylindrical TRD, to be built and installed in the D0 Experiment (E740) at FNAL ∗ , which should provide a pion rejection factor of 50 for 90% electron efficiency. The first chamber of this 3-unit detector will be ready for test in April 1987, and the full TRD is planned to be assembled at the end of 1987.
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