Bonn 2020 – scientific programme

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T: Fachverband Teilchenphysik

T 17: Methods of astroparticle physics I

T 17.3: Talk

Monday, March 30, 2020, 17:00–17:15, H-HS XVII

Design and commissioning of a test bench for the quality control of photomultipliers for the IceCube-Upgrade — •Robert Joppe, Lasse Halve, Martin Rongen, and Christopher Wiebusch — III. Physikalisches Institut RWTH Aachen University

A new light sensor [mDOM] housing 24 photomulipliers is developed for the IceCube Upgrade. A total of ~10.000 PMTs 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.