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URN: urn:nbn:de:swb:90-AAA258220011

Performance test of a micro-pattern stereo detector with two gas electron multipliers [online]

Barvich, Tobias; Bluem, Peter; Erdmann, Martin; Fahrer, Manuel; Kaercher, Kurt; Kuehn, F.; Moermann, D.; Mueller, Thomas; Neuberger, D.; Roederer, F.; Simonis, Hans-Jürgen; Skiba, Alexander; Thuemmel, Wolf Hagen; Weiler, Thomas; Weseler, Siegfried


We report on the performance of a large micro-pattern detector
with two gas electron multiplier foils (GEM) and a two-layer
readout structure at ground potential. The two readout layers
each have a 406 micro-m pitch and cross at an effective angle of
6.7 degrees. This structure allows for two orthogonal
coordinates to be determined. Using a muon beam at CERN together
with a silicon tracking system, the position resolutions of the
two coordinates are measured to be 50 micro-m and 1 mm
respectively (1 The muon detection efficiency for
the two-dimensional space points reaches 96%. The detector was
found to be well operational over a wide range in the settings
of the different electrical fields.

Zugehörige Institution(en) am KIT Institut für Experimentelle Kernphysik (IEKP)
Publikationstyp Buch
Jahr 2001
Sprache Englisch
Identifikator KITopen ID: 25822001
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