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T: Fachverband Teilchenphysik

T 74: Gaseous Detectors II

T 74.3: Vortrag

Donnerstag, 19. März 2026, 16:45–17:00, KH 01.014

Modeling Electron Transport Properties in Gaseous Detector Gases — Stefan Roth, •Max Schmit, David Smyczek, Jochen Steinmann, and Nick Thamm — RWTH Aachen University - Physik Institute III B, Aachen, Germany

Electron transport parameters in gases can be derived by solving the Boltzmann equation. Two approaches are commonly used: analytical solutions and Monte Carlo methods. Both modeling approaches are outlined, with emphasis on their treatment of the electron energy distribution function and the use of electron-molecule cross-section data. Differences in required inputs and in the resulting transport coefficients are discussed. Electron drift velocity and diffusion coefficients are evaluated for commonly used detector gases. Comparison results and the current status of the study are presented, highlighting their implications for detector simulations.

Keywords: Gaseous detectors; electron transport; Boltzmann equation; simulation