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Würzburg 2018 – scientific programme

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T: Fachverband Teilchenphysik

T 38: Gasgefüllte Detektoren II

T 38.3: Talk

Tuesday, March 20, 2018, 17:00–17:15, Z6 - SR 2.002

Spatial Resolution Enhancement for Micro-Pattern-Gaseous-Detectors — •Bernhard Flierl1, Otmar Biebel1, Maximillian Herrmann1, Felix Klitzner1, Phillipp Lösel1, Ralph Müller1, and Andre Zibell21Ludwig-Maximilians-Universität München — 2Julius-Maximilians-Universität Würzburg

The quality of position reconstruction of minimal ionizing particles using standard methods in planar gaseous detectors is often depending on the relative inclination of the particle track with respect to the detector. Different methods aim to overcome this by using time resolved readout in order to reconstruct the full track in a TPC-like scheme. We show a tracking method, which provides high spatial resolution together with excellent reconstruction efficiency at lowered requirements on timing resolution. At the example of small Gaseous-Electron-multiplier-detectors (GEM) with an active area of 100x100 mm2 and square-meter sized micromegas detectors the resolution enhancement for multi-layer detectors is illustrated, which has been measured with a 150 GeV muon beam at the SPS accelerator at CERN. The detectors feature one- and two-dimensional strip read-out equipped with time-resolving APV25 chips, which allows a spatial resolution of below 0.15 mm independent of the track inclination.

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