SMuK 2023 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 17: Cosmic Ray I

T 17.5: Vortrag

Montag, 20. März 2023, 17:30–17:45, POT/0013

A new approach to efficiency estimation of radio arrays — •Vladimir Lenok — Bielefeld University, Germany

The progress of in the field of radio detection of air showers in the last decades paved the way for the large-scale radio observatories of cosmic rays and neutrinos. One of the remaining challenges regarding this kind of instrumentation is estimation of their efficiency, which is a complicated problem due to high computational complexity of the required large Monte-Carlo libraries. We developed a new approach to this problem that is based on explicit probabilistic treatment or each of the components of the detection process. With this approach we built an efficiency model for the Tunka-Rex radio array as for example. The model uses a parametrization of the air-shower radio footprint and probability densities for signal detection on the antenna level and shower detection on the array level. The model was validated against full-fledged Monte-Carlo simulations and against the observational data that showed that it is suitable for selection of the full-efficiency regions usually used in all cosmic-ray studies. In the talk we will present the details of the approach and the results of its application to the Tunka-Rex array.