Dortmund 2021 – scientific programme

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T: Fachverband Teilchenphysik

T 16: Cosmic Rays V

T 16.9: Talk

Monday, March 15, 2021, 18:00–18:15, Tp

Calibration of the Data Acquisition System of the IceCube Surface Array Enhancement — •Ömer Nuhoglu, Andreas Haungs, Bernd Hoffmann, Marie Oehler, and Andreas Weindl for the IceCube collaboration — KIT, Karlsruhe, Germany

IceTop, the surface array of the IceCube Neutrino Observatory, will be enhanced with hybrid stations within the current footprint, which will increase the detection sensitivity of cosmic rays significantly. Each station consists of eight scintillation detectors and three radio antennas, which are read out by a custom designed central hybrid data acquisition system (DAQ). The detectors consist of organic scintillators, wavelength shifting optical fibers and silicon photomultipliers (SiPM). The analog signals of the SiPM are integrated and digitized inside the detectors and then transferred to the central DAQ.

Since the signal of the SiPM depends on the applied voltage and the temperature, calibration measurements are needed to ensure the stability of the voltage and the reliability of the temperature sensor in the detector. Additionally, the integration of the SiPM signals needs to be characterized. In this contribution the methods and results of these calibration measurements will be presented.