Dortmund 2021 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 17: Neutrino Astronomy I
T 17.8: Vortrag
Montag, 15. März 2021, 17:50–18:05, Tq
Development of an in-situ calibration device of ice properties for high-energy neutrino radio detectors in Antarctica — •Jakob Beise — Uppsala Universitet, Uppsala, Sweden — Humboldt Universität, Berlin, Germany
High-energy neutrino astronomy has become a powerful tool to explore the most extreme environments in our universe. High energy neutrinos (E>1016.5 eV) are detected most efficiently via the Askaryan effect in ice, where a particle cascade induced by the neutrino interaction produces coherent radio emission. There are several pilot radio arrays at the moment, among them ARIANNA at the Ross Ice Shelf. In order to reconstruct the neutrino energy with high precision, the snow accumulation must be monitored in real time. Therefore, one ARIANNA station was extended with a radio emitter that allows the measurement of the snow accumulation with unprecedented precision. I will present 14 months of measured data that I analyzed using traditional and deep-learning techniques. Furthermore, I show how the measurement setup can be extended to also measure the change of the index-of-refraction with depth, another property relevant for reconstruction of the neutrino direction and energy.