Beam tests of GaAs strip detectors

J. Chen,R. Geppert,R. Irsigler,J. Ludwig,J. Pfister,T. Plötze,M. Rogalla, K. Runge,F. Schäfer, Th. Schmid,S. Söldner-Rembold,M. Webel

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment（1996）

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摘要

We report on test beam measurements of GaAs detectors. The detectors differ in pitch (44, 200, 375 and 1000 μm) and thickness (d = 500 and 200 μm). Results on the charge collection, the signal to noise ratio and the charge division were obtained with a 5 GeV/c pion beam at the CERN-PS. Position dependent measurements of cross-talk between strips and the charge collection efficiency (CCE) were performed at the 1.5 MeV He+ beam of the Freiburg Van de Graaff facility.

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signal to noise ratio

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