Bonn 2020 – scientific programme

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T: Fachverband Teilchenphysik

T 38: Methods of astroparticle physics II

T 38.3: Talk

Tuesday, March 31, 2020, 17:30–17:45, L-3.001

Development of SiPM based light sensors for large neutrino detectors — David Blum, •Marc Breisch, Jessica Eck, Tobias Heinz, Tobias Lachenmaier, Neha Lad, Axel Müller, Tobias Sterr, and Alexander Tietzsch — Physikalisches Institut, Eberhard Karls Universität Tübingen

For future neutrino experiments (like THEIA) the usage of either large photomultiplier tubes (PMTs) or completely new detector technologies like Large Area Picosecond Photodetectors (LAPPDs) are under consideration. To improve the granulation of the detector and thus the reconstruction a new approach based on SiPM and scintillators was investigated. The scintillator in this design has a surface which is larger than the SiPM and acts as an active lightguide to increase the sensitive area. A custom ray-tracing simulation was used to determine the shape and size of the scintillator to optimise its light collection. This talk will present the results of the simulation, the scintillator design and its experimental validation as well as the first test of an array setup. This work is supported by the BMBF (05H18VTRD2).