Parts | Days | Selection | Search | Updates | Downloads | Help

T: Fachverband Teilchenphysik

T 126: Gas-Detecors, Detector Systems

T 126.1: Talk

Thursday, March 23, 2023, 15:50–16:05, WIL/C207

Neutron Source Characterization for Micromegas Detector Irradiation Studies — •Eshita Kumar, Otmar Biebel, Valerio D'Amico, Florian Egli, Stefanie Götz, Ralf Hertenberger, Christoph Jagfeld, Katrin Penski, Maximilian Rinnagel, Nick Schneider, Chrysostomos Valderanis, and Fabian Vogel — LMU München

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. These detectors are used for the track reconstruction of ionizing particles. To test the performance and resilience of such detectors under high background, multiple detectors are irradiated by a 10 GBq Americium-Beryllium neutron source: measurements with different shielding materials of varying thicknesses placed in front of the source are used to disentangle the detector response for gamma and neutron radiation. A Geant4 simulation to determine the interaction probability from the background radiation is carried out. Comparison of the analysis of the detector output to the simulation results for the final charge obtained from the gammas and the neutrons will be shown.