Bonn 2020 – scientific programme
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T: Fachverband Teilchenphysik
T 43: Poster session Particle Physics
T 43.10: Poster
Tuesday, March 31, 2020, 17:00–18:30, Grotte
The Radon-induced background in the KATRIN main spectrometer — •Rebekka Kirchgässner for the KATRIN collaboration — Karlsruhe Institute of Technology
The Karlsruhe Tritium Neutrino (KATRIN) experiment measures the integral tritium β spectrum with the aim to determine the effective mass of the electron anti neutrino in a model-independent way. To achieve the design sensitivity on the neutrino mass of mν=0.2 eV/c2 (90% C.L.), the study of systematic effects arising from background processes is important.
The background at KATRIN is presently dominated by secondary electrons originating from radioactive decays inside the KATRIN main spectrometer. This poster focuses on the radon-induced background events, their characteristics, and the underlying processes.
This work is supported by the Helmholtz Association (HGF), the Ministry for Education and Research BMBF (05A17PM3, 05A17PX3, 05A17VK2, and 05A17WO3), the Helmholtz Alliance for Astroparticle Physics (HAP), and the Helmholtz Young Investigator Group (VH-NG-1055).