Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 106: Experimental Techniques in Astroparticle Physics 4

T 106.1: Vortrag

Donnerstag, 24. März 2022, 16:15–16:30, T-H38

Acceptance Tests for 10,700 PMTs of the mDOMs of the IceCube Upgrade — •Joëlle Savelberg¹, Hannah Erpenbeck¹, Maja Freienhofer², Lasse Halve¹, Konstantin Mrozik², Johannes Werthebach², and Christopher Wiebusch¹ for the IceCube collaboration — ¹RWTH Aachen University - Physics Institute III B, Aachen, Germany — ²Experimentelle Physik 5, TU Dortmund University

The currently prepared IceCube Upgrade will add seven new detector-strings to the central region of the IceCube detector, with the goal of improving the photon-detection and lowering the energy threshold. Part of the new instrumentation are more than 400 multi-PMT Digital Optical Modules (mDOMs), each containing 24 3'' Photomultiplier Tubes (PMTs) of type Hamamatsu R15458-20. Prior to the assembly of the mDOMs, the 10,700 required PMTs need to be tested for compliance with set specifications. These tests are carried out at dedicated testing facilities at RWTH Aachen University and TU Dortmund University, with setups that have been optimized for large throughput during the production phase. This talk will focus on the design of these setups and development of optimized testing procedures of PMTs in these large quantities.