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Performance of the triple-GEM detector with optimized 2-D readout in high intensity hadron beam

A. Bondar·A. Buzulutskov·L. Shekhtman·A. Sokolov·A. Vasiljev
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Abstract

Multiple-GEM detectors are considered to be good candidates for tracking devices in experiments with high hadronic background. We present the results of the triple-GEM detectors beam test in a high intensity pion beam. The detectors had an optimized two-dimensional readout with minimized strip capacitance. Such optimization permitted the starting point of the efficiency plateau down to a gain of 5000. The probability of GEM discharges induced by heavily ionizing particles has been measured as a function of gain: at a gain of 20000 it amounts to 10^(-11) per incident particle. Such a value will ensure safe operation of the detector in the conditions of forward region of the LHC experiments.

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A. Bondar, A. Buzulutskov, L. Shekhtman, A. Sokolov, A. Vasiljev. 2001-10-19. Performance of the triple-GEM detector with optimized 2-D readout in high intensity hadron beam. https://arxiv.org/abs/physics/0110054

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