Aachen 2019 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 90: Experimentelle Methoden III

T 90.6: Vortrag

Donnerstag, 28. März 2019, 17:15–17:30, S01

Microscopic simulation of gaseous detectors — •Moritz Seidel, Thomas Hebbeker, Carsten Heidemann, Kerstin Hoepfner, Henning Keller, and Giovanni Mocellin — Physikalisches Institut III A, RWTH Aachen, Germany

Gaseous detectors are widely used in the field of particle physics research, such as at the main experiments of the LHC. Given the increasing demand of precision and reliability of the detectors for the discovery of new particles, it is essential to better understand the details of the already existing detectors and those of the next generation.

To achieve this, the generation and propagation of signals inside the detectors are studied on a microscopic scale. Simulations are performed using the Garfield++ package mainly focusing on GEM detectors.

Starting from ionizing particles, the ion-electron pairs are generated in the gas volume. The electrons are propagated towards the regions of high electric field where the electron multiplication takes place. Finally the collection of the signal on the electrodes is simulated.

The studies presented here cover the influence of environmental pa- rameters, detector geometry, high voltage distribution and gas compo- sition.