Aachen 2019 – scientific programme

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T: Fachverband Teilchenphysik

T 37: Astroteilchenphysik: Methoden II

T 37.5: Talk

Tuesday, March 26, 2019, 17:00–17:15, S12

PMT characterization 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

In the framework of a planned upgrade of the IceCube Neutrino Observatory and a next-generation neutrino telescope at the South Pole, new optical modules are being developed, which are expected to significantly increase the detector sensitivity. One such concept is the multi-PMT Digital Optical Module (mDOM) which features 24 photomultipliers (PMTs) inside a pressure vessel pointing in all directions. This design provides o.a. an almost uniform angular acceptance, an increased effective area and the possibility of using local coincidences between PMTs of the same module. Since the PMTs are the main detection device of the module, a good understanding of their performance is essential. We present current results regarding PMT characterization and measurement techniques.