Würzburg 2018 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 69: Experimentelle Methoden der Astroteilchenphysik III
T 69.7: Vortrag
Mittwoch, 21. März 2018, 18:00–18:15, Z6 - SR 2.013
Characterization of SiPMs for cosmic-ray air-shower detectors for the IceCube upgrade — •Marie Oehler1, Andreas Haungs1, Thomas Huber1,2, Max Renschler1, Harald Schieler1, Bernd Hofmann1, and Andreas Weindl1 for the IceCube-Gen2 collaboration — 1KIT, Karlsruhe, Germany — 2DESY, Zeuthen, Germany
IceCube is a cubic-kilometer neutrino detector installed in the ice at the geographic South Pole. To increase the amount of detected extragalactic neutrinos the upgrade IceCube-Gen2 is under development. Among others, a large surface scintillation detector array is proposed.
First prototype stations consisting of seven detectors each, will be installed in January 2018 at the South Pole. These recently developed detectors use scintillators, wavelength shifting optical fibers and a photo-sensor. Silicon Photomultipliers (SiPMs) by Hamamatsu are used as sensors because they are mechanically robust and do not require high voltage compared to classical photomultipliers. Before mounting the SiPMs in the detectors, characterization measurements were made to ensure their suitability and performance for the prototype station. In addition, in order to improve these scintillation detectors, comparison studies between SiPMs of other companies were performed. In this talk the photo-sensor calibration setup, the results of the calibration measurements and the comparison studies will be shown.