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Karlsruhe 2024 – scientific programme

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T: Fachverband Teilchenphysik

T 93: Detectors 9 (gas detectors)

T 93.4: Talk

Thursday, March 7, 2024, 16:45–17:00, Geb. 30.23: 2/17

Studies on GEM amplification and time resolution — •Tim Fabisch, Thomas Hebbeker, Kerstin Hoepfner, Shawn Zaleski, and Francesco Ivone — III. Physikalisches Institut A, RWTH Aachen University

The GEM (Gas Electron Multiplier) technology is being adopted for muon detection in high energy physics experiments, for both tracking and triggering, as well as in other application areas. Two key detector performance figures are the amplification factor and the time resolution.

The electron amplification in GEM detectors depends on the gas mixture, GEM foil's structure, environmental conditions and high voltage settings. The foil's structure is affected by the manufacturing technique which can be based on either single or double mask etching. The time resolution strongly depends on the gas mixture and applied voltage.

In this contribution, we describe the influence of the aforementioned parameters on the amplification factor and the time resolution of a GEM detector. The study complements experimental measurements with numerical simulations.

Keywords: GEM; Gaseous Detector; Muons; Time Resolution

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