München 2009 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 54: Spurkammern 3
T 54.9: Vortrag
Freitag, 13. März 2009, 16:00–16:15, A014
The PixelGEM Tracking System for the COMPASS Experiment — Heinz Angerer, Alexander Austregesilo, Florian Haas, Bernhard Ketzer, Igor Konorov, •Markus Krämer, Alexander Mann, Thiemo Nagel, Stephan Paul, Florian Schneider, and Sebastian Uhl — Technische Universität München, Physik Department E18, 85748 Garching
For the COMPASS experiment at CERN a gas electron multiplier (GEM) detector with a novel readout type has been developed. With its combined pixel and strip structure it should provide precise spatial information for the tracking of charged particles and still stand the high intensities of muon and hadron beams with a particle rate of more than 2 · 105/(mm2 s). The low material budget of these detectors was an essential part in reducing the amount of multiple scattering and secondary interactions in the hadron beam used in the year 2008. Five detectors have been successfully set up in the COMPASS spectrometer. We will present results in hadron beams of low (3.5 · 103 π−/(mm2 s)) and high (2 · 104 π−/(mm2 s)) intensities.
This work is supported by the Maier-Leibnitz-Labor der LMU and TU München and the DFG Cluster of Excellence “Origin and Structure of the Universe" (Exc153).