Apr 13 – 16, 2026
KIT Campus South
Europe/Berlin timezone

Simulation of electron energy loss in the KATRIN source

Apr 14, 2026, 5:35 PM
2m
Gaede Foyer (KIT Campus South)

Gaede Foyer

KIT Campus South

2nd floor (in front of Gaede-Lecture theater) Physikflachbau Building 30.22 Engesserstraße 7 76131 Karlsruhe
Poster Posters

Speakers

Chloe Goupy (MPIK) Xaver Stribl

Description

Electrons from tritium beta decay can lose significant energy through inelastic scattering on gas molecules in the KATRIN source. Accurate modeling of the scattering probabilities and the energy loss distribution is crucial to achieve the desired sensitivity to the electron anti-neutrino mass.
In this poster we present a method based on Monte Carlo simulations to quantify the impact of energy-dependent scattering probabilities on the reproducibility of the energy loss distribution and source gas density obtained from dedicated KATRIN calibration measurements, and their propagation to the determination of the electron anti-neutrino mass.

Collaboration or Other Affiliation KATRIN

Authors

Chloe Goupy (MPIK) Xaver Stribl

Presentation materials