Hunting keV sterile neutrinos with KATRIN: building the first TRISTAN module
Abstract
The KATRIN (Karlsruhe Tritium Neutrino) experiment investigates the energetic endpoint of the tritium beta-decay spectrum to determine the effective mass of the electron anti-neutrino. The collaboration has reported a first mass measurement result at this TAUP-2019 conference. The TRISTAN project aims at detecting a keV-sterile neutrino signature by measuring the entire tritium beta-decay spectrum with an upgraded KATRIN system. One of the greatest challenges is to handle the high signal rates generated by the strong activity of the KATRIN tritium source while maintaining a good energy resolution. Therefore, a novel multi-pixel silicon drift detector and read-out system are being designed to handle rates of about 100 Mcps with an energy resolution better than 300 eV (FWHM). This report presents succinctly the KATRIN experiment, the TRISTAN project, then the results of the first 7-pixels prototype measurement campaign and finally describes the construction of the first TRISTAN module composed of 166 SDD-pixels as well as its implementation in KATRIN experiment.
Keywords
Cite
@article{arxiv.2004.07693,
title = {Hunting keV sterile neutrinos with KATRIN: building the first TRISTAN module},
author = {Thibaut Houdy and Antonio Alborini and Konrad Altenmüller and Matteo Biassoni and Luca Bombelli and Tim Brunst and Marco Carminati and Martin Descher and David Fink and Carlo Fiorini and Matteo Gugiatti and Anton Huber and Pietro King and Marc Korzeczek and Manuel Lebert and Peter Lechner and Susanne Mertens and Maura Pavan and Stefano Pozzi and David Radford and Alexander Sedlak and Daniel Siegmann and Korbinian Urban and Joachim Wolf},
journal= {arXiv preprint arXiv:2004.07693},
year = {2020}
}