Erlangen 2026 – scientific programme

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T: Fachverband Teilchenphysik

T 11: Gaseous Detectors I

T 11.7: Talk

Monday, March 16, 2026, 17:45–18:00, KH 01.014

Research and Development of a micro-pixel capacitive sharing Micromegas detector — •Eshita Kumar, Otmar Biebel, Valerio D'Amico, Ralf Hertenberger, Nick Schneider, Lilla Schneider, Chrysostomos Valderanis, and Fabian Vogel — Ludwig Maximilians University, Munich

MICRO MEsh GAseous Structure (Micromegas) detectors are micro patterned gaseous detectors that have high rate capability due to the fast evacuation of positive ions and excellent spatial resolution due to a small scale readout strip pitch. However, large scale detectors need thousands of channels which leads to increased power consumption and significant heat generation, often requiring dedicated cooling systems. This talk explores a way to reduce the number of readout channels without compromising position measurement accuracy by encoding the precise position information of the particle's passage through the detector via capacitive sharing using multiple stacked layers of signal electrodes. A prototype of this detector was tested at CERN's SPS beam of 120 GeV muons and the results of the performance and efficiency of this detector will be presented. Comparison with the simulation results using ANSYS and Garfield++ will also be discussed.

Keywords: Micromegas detectors; Micro-Patterned Gaseous Detectors; Capacitive Coupling