Present status and prospects of the Tunka Radio Extension

Kostunin, D.; Bezyazeekov, P. A.; Буднев, Н. М.; Chernykh, D.; Fedorov, Oleg; Гресс, О. А.; Haungs, A.; Hiller, R.; Huege, T.; Kazarina, Y.; Kleifges, M.; Коростелева, Е. Е.; Kuzmichev, L. A.; Lenok, Vladimir; Лубсандоржиев, Н.; Marshalkina, T.; Монхоев, Р.; Osipova, E.; Пахоруков, А.; Pankov, L.; Prosin, V.; Schröder, Frank G.; Шипилов, Д.; Загородников, А.

doi:10.1051/epjconf/201921601005

Cited by 1 publication

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References 27 publications

(25 reference statements)

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“…We also point out that the atmospheric conditions for all Tunka-Rex data are similar by construction, since Tunka-Rex was triggered by the Tunka-133 air-Cherenkov detector operating in clear winter nights in a dry climate. Therefore, when building a model to estimate parameter regions of full efficiency for Tunka-Rex, we neglect variations of atmospheric and background conditions, as these have been shown to have only a minor influence on prior Tunka-Rex results compared to other uncertainties [13].…”

Section: Tunka-rex Arraymentioning

confidence: 99%

A probabilistic model for the efficiency of cosmic-ray radio arrays

Lenok¹,

Schröder²

2023

J. Cosmol. Astropart. Phys.

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Digital radio detection of cosmic-ray air showers has emerged as an alternative technique in high-energy astroparticle physics. Estimation of the detection efficiency of cosmic-ray radio arrays is one of the few remaining challenges regarding this technique. To address this problem, we developed a new approach to model the efficiency based on the explicit probabilistic treatment of key elements of the radio technique for air showers: the footprint of the radio signal on ground, the detection of the signal in an individual antenna, and the detection criterion on the level of the entire array. The model allows for estimation of sky regions of full efficiency and can be used to compute the aperture of the array, which is essential to measure the absolute flux of cosmic rays. We also present a semi-analytical method that we apply to the generic model, to calculate the efficiency and aperture with high accuracy and reasonable calculation time. The model in this paper is applied to the Tunka-Rex array as example instrument and validated against Monte Carlo simulations. The validation shows that the model performs well, in particular, in the prediction of regions with full efficiency. It can thus be applied to other antenna arrays to facilitate the measurement of absolute cosmic-ray fluxes and to minimize a selection bias in cosmic-ray studies.

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Section: Tunka-rex Arraymentioning

confidence: 99%