2018/01/24 by T. Brunst, Brunst, Tim, Konrad Altenmüller +24
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det) #Neutrino Physics Research #Particle Detector Development and Performance #Radiation Detection and Scintillator Technologies
paper · pdf · doi:10.48550/arxiv.1801.08182
openalex publication_date 2018/01/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The KATRIN (Karlsruhe Tritium Neutrino) experiment investigates the energetic endpoint of the tritium β-decay spectrum to determine the effective mass of the electron anti-neutrino with a precision of 200 meV (90 % C.L.) after an effective data taking time of three years. The TRISTAN (tritium β-decay to search for sterile neutrinos) group aims to detect a sterile neutrino signature by measuring the entire tritium β-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. Therefore, a novel multi-pixel silicon drift detector is being designed, which is able to handle rates up to 108 cps with an excellent energy resolution of <200 eV (FWHM) at 10 keV. This work gives an overview of the ongoing detector development and test results of the first seven pixel prototype detectors.