Dortmund 2021 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 18: Neutrino physics without accelerators I

T 18.9: Vortrag

Montag, 15. März 2021, 18:05–18:20, Tr

Characterization and First Integration of the TRISTAN Detector — •Korbinian Urban for the KATRIN collaboration — Max Planck Institut for Physics, Föhringer Ring 6, D-80805 München

The TRISTAN project aims at detecting a keV sterile neutrino signature by measuring the entire tritium beta-decay spectrum with an upgraded detector for the KATRIN experiment. To obtain a high sensitivity to the sterile neutrino mixing angle, a strong activity of the KATRIN source and as follows a high electron rate at the detector is necessary. At the same time excellent spectroscopic properties, like energy resolution and linearity, are important. To meet these challenging requirements a novel multi-pixel silicon drift detector and read-out are being developed to handle rates up to 100 kcps with an energy resolution of 300 eV (FWHM) at 20 keV.

In the last year, the first devices of the new TRISTAN detector became available. This talk addresses the characterization of seven-pixel TRISTAN detectors with X-ray sources and will show details of the first integration of a 47-pixel module in the Monitor Spectrometer at the KATRIN site.
This work is supported by the Max Planck society and the TU Munich (“Chair for Dark Matter, Susanne Mertens”)