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arXiv · hep-ex/0110008

Construction and Performance of a Micro-Pattern Stereo Detector with Two Gas Electron Multipliers

T. Barvich·P. Bluem·M. Erdmann·M. Fahrer·K. Kaercher·F. Kuehn·D. Moermann·Th. Mueller·D. Neuberger·F. Roederer·H. J. Simonis·A. Skiba·W. H. Thuemmel·Th. Weiler·S. Weseler
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Abstract

The construction of a micro-pattern gas detector of dimensions 40x10 cm**2 is described. Two gas electron multiplier foils (GEM) provide the internal amplification stages. A two-layer readout structure was used, manufactured in the same technology as the GEM foils. The strips of each layer cross at an effective crossing angle of 6.7 degrees and have a 406 um pitch. The performance of the detector has been evaluated in a muon beam at CERN using a silicon telescope as reference system. The position resolutions of two orthogonal coordinates are measured to be 50 um and 1 mm, respectively. The muon detection efficiency for two-dimensional space points reaches 96%.

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T. Barvich, P. Bluem, M. Erdmann, M. Fahrer, K. Kaercher, F. Kuehn, D. Moermann, Th. Mueller, D. Neuberger, F. Roederer, H. J. Simonis, A. Skiba, W. H. Thuemmel, Th. Weiler, S. Weseler. 2001-10-04. Construction and Performance of a Micro-Pattern Stereo Detector with Two Gas Electron Multipliers. https://doi.org/10.1016/s0168-9002(01)02109-x

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