Erlangen 2026 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 9: Silicon Detectors I

T 9.4: Vortrag

Montag, 16. März 2026, 17:00–17:15, KH 01.012

Assembly and Characterization of the TRISTAN Detector for the KATRIN Experiment — •Christian Forstner for the KATRIN collaboration — TUM School of Natural Sciences - Physics Department, Garching, Germany

Sterile neutrinos, a minimal extension to the Standard Model of particle physics, are a promising dark matter candidate if their mass is in the keV-range. Following the completion of its neutrino mass measurement campaign, the Karlsruhe Tritium Neutrino (KATRIN) experiment will be equipped with a novel silicon drift detector array, the TRISTAN detector, to search for a keV-scale sterile neutrino signature in the tritium β-decay spectrum.
In this work, we report on the assembly of the TRISTAN detector, which consists of nine TRISTAN detector modules. The talk covers the module testing procedure as well as the characterization using photon and electron sources.

This work is supported by the Helmholtz Association and by the Ministry for Education and Research BMBF (grant numbers 05A23PMA, 05A23PX2, 05A23VK2 and 05A23WO6).