Aachen 2019 – scientific programme

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T: Fachverband Teilchenphysik

T 37: Astroteilchenphysik: Methoden II

T 37.6: Talk

Tuesday, March 26, 2019, 17:15–17:30, S12

Development of a test bench for the quality control of photomultipliers for the IceCube-Upgrade — •Robert Joppe, Martin Rongen, Mareike Profe, Lutz Deriks, and Christopher Wiebusch for the IceCube collaboration — III. Physikalisches Institut B, RWTH Aachen

For the IceCube-Upgrade a new light sensor (mDOM) is developed, which consists of multiple photomultipliers (PMTs). Each PMT has to be tested and characterized prior to assembly of the modules. We construct a test bench to identify defective units, calibrate gain, transit time, noise rates, photon detection efficiency and reject PMTs which emit light from the dynode system or the base. Design challenges are the large number of PMTs to be tested simultaneously, within a tight schedule, at Antarctic temperatures and over a wide wavelength range.