Bonn 2020 – scientific programme

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T: Fachverband Teilchenphysik

T 84: Methods of astroparticle physics V

T 84.8: Talk

Thursday, April 2, 2020, 18:15–18:30, L-3.001

The POCAM as self-calibrating light source for the IceCube Upgrade — •Felix Schmuckermaier, Felix Henningsen, and Christian Spannfellner — Technische Universität München, Germany

The IceCube Neutrino Observatory will be upgraded until the South Pole season of 2022/23. This IceCube Upgrade will consist of seven new instrumentation strings containing optical sensors and calibration devices. Besides extending the detector's science capabilities towards lower energies, the goal is to improve the knowledge of the Antarctic ice properties as well as the detector response. In order to achieve these calibration goals, the strings will be equipped with different calibration devices, including 21 Precision Optical Calibration Modules (POCAM). In this talk we present the motivation for the POCAM and its properties as a novel self-calibrating and isotropic light source, emitting light pulses of adjustable intensity and pulse width. The POCAM's primary goals are the improvement of South Pole ice systematic uncertainties down to a few percent as well as the study of detector instrumentation efficiencies and linearities. In the scope of the latter, it will further aim to verify the detector energy scale and its calibrations.