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Estimation of aperture of the Tunka-Rex radio array for cosmic-ray air-shower measurements

Tunka-REX Collaboration; Lenok, Vladimir 1; Bezyazeekov, P. A.; Budnev, N.; Fedorov, O.; Gress, O.; Grishin, O.; Haungs, A. ORCID iD icon 1; Huege, T. 1; Kazarina, Y.; Kleifges, M. 2; Korosteleva, E.; Kostunin, D.; Kuzmichev, L.; Lubsandorzhiev, N.; Malakhov, S.; Marshalkina, T.; Monkhoev, R.; Osipova, E.; ... mehr


The recent progress in the radio detection technique for air showers paves the path to future cosmic-ray radio detectors. Digital radio arrays allow for a measurement of the air-shower energy and depth of its maximum with a resolution comparable to those of the leading optical detection methods. One of the remaining challenges regarding cosmic-ray radio instrumentation is an accurate estimation of their efficiency and aperture. We present a probabilistic model to address this challenge. We use the model to estimate the efficiency and aperture of the Tunka-Rex radio array. The basis of the model is a parametrization of the radio footprint and a probabilistic treatment of the detection process on both the antenna and array levels. In this way, we can estimate the detection efficiency for air showers as function of their arrival direction, energy, and impact point on the ground. In addition, the transparent internal relationships between the different stages of the air-shower detection process in our probabilistic approach enable to estimate the uncertainty of the efficiency and, consequently, of the aperture of radio arrays. The details of the model will be presented in the contribution.

Verlagsausgabe §
DOI: 10.5445/IR/1000138427
Veröffentlicht am 01.10.2021
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Astroteilchenphysik (IAP)
Institut für Prozessdatenverarbeitung und Elektronik (IPE)
Publikationstyp Proceedingsbeitrag
Publikationsdatum 18.03.2022
Sprache Englisch
Identifikator ISSN: 1824-8039
KITopen-ID: 1000138427
HGF-Programm 51.13.04 (POF IV, LK 01) Kosmische Strahlung Technologien
Erschienen in Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)
Veranstaltung 37th International Cosmic Ray Conference (ICRC 2021), Online, 12.07.2021 – 23.07.2021
Verlag Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Seiten Art.-Nr.: 210
Serie Proceedings of Science ; 395
Vorab online veröffentlicht am 09.08.2021
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