Triple GEM performance in magnetic field

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Published 19 August 2019 © 2019 IOP Publishing Ltd and Sissa Medialab
, , Citation M. Alexeev et al 2019 JINST 14 P08018 DOI 10.1088/1748-0221/14/08/P08018

1748-0221/14/08/P08018

Abstract

Performance of triple GEM prototypes in strong magnetic field has been evaluated by means of a muon beam at the H4 line of the SPS test area at CERN. Data have been reconstructed and analyzed offline with two reconstruction methods: the charge centroid and the micro-Time-Projection-Chamber exploiting the charge and the time measurement respectively. Depending on the combination of the particle incident angle and magnetic filed, there's always one of the two algorithms achieving a spatial resolution of 100–120 μm.

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10.1088/1748-0221/14/08/P08018