Bonn 2020 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 19: Various topics in astroparticle physics

T 19.3: Vortrag

Montag, 30. März 2020, 17:00–17:15, L-3.002

Spatially resolved parameters of photomultipliers for the multi-PMT Digital Optical Module of the IceCube-Upgrade — •Martin Antonio Unland Elorrieta, Lew Classen, and Alexander Kappes for the IceCube collaboration — Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Münster

IceCube located at the South Pole is the largest Neutrino Observatory and is going to be expanded in the season 2022/2023 with seven new strings. For this project, the IceCube-Upgrade, new sensors are being developed, which are expected to increase the detector sensitivity. Over half of the modules foreseen for deployment are multi-PMT Digital Optical Modules (mDOMs) which feature 24 photomultipliers (PMTs) inside a pressure vessel pointing in all directions. Since the PMTs are the main detection device of the module, a good understanding of their performance is essential. Several key parameters of the PMTs were spatially resolved across the sensitive area. This talk will present current results and measurement techniques.