proceeding

Modeling the Aperture of Radio Instruments for Air-Shower Detection

Vladimir LenokInstitut für Kernphysik, Karlsruhe Institute für Technology (KIT), Karlsruhe, 76021 GermanyP. A. BezyazeekovInstitute of Applied Physics ISU, Irkutsk, 664020 RussiaН. БудневInstitute of Applied Physics ISU , Irkutsk , 664020 RussiaOleg FedorovInstitute of Applied Physics ISU, Irkutsk, 664020 RussiaО. ГрессInstitute of Applied Physics ISU , Irkutsk , 664020 RussiaО. ГришинInstitute of Applied Physics ISU , Irkutsk , 664020 RussiaA. HaungsInstitut für Kernphysik , Karlsruhe Institute für Technology (KIT) , Karlsruhe , 76021 GermanyT. HuegeInstitut für Kernphysik , Karlsruhe Institute für Technology (KIT) , Karlsruhe , 76021 GermanyYulia KazarinaInstitute of Applied Physics ISU , Irkutsk , 664020 RussiaM. KleifgesInstitut für Prozessdatenverarbeitung und Elektronik , Karlsruhe Institute of Technology (KIT) , Karlsruhe , 76021 GermanyЕ. Е. КоростелеваSkobeltsyn Institute of Nuclear Physics MSU , Moscow , 119991 RussiaD. KostuninL. A. KuzmichevSkobeltsyn Institute of Nuclear Physics MSU , Moscow , 119991 RussiaН. ЛубсандоржиевSkobeltsyn Institute of Nuclear Physics MSU , Moscow , 119991 RussiaS. MalakhovInstitute of Applied Physics ISU, Irkutsk, 664020 RussiaT. MarshalkinaInstitute of Applied Physics ISU , Irkutsk , 664020 RussiaР. МонхоевInstitute of Applied Physics ISU, Irkutsk, 664020 RussiaЭ. А. ОсиповаSkobeltsyn Institute of Nuclear Physics MSU , Moscow , 119991 RussiaА. ПахоруковInstitute of Applied Physics ISU , Irkutsk , 664020 RussiaL. PankovInstitute of Applied Physics ISU, Irkutsk, 664020 RussiaВ. В. ПросинSkobeltsyn Institute of Nuclear Physics MSU , Moscow , 119991 RussiaFrank SchröderBartol Research Institute , Department of Physics and Astronomy , University of Delaware , Newark , DE , 19716 , USAД. ШипиловInstitute of Applied Physics ISU, Irkutsk, 664020 RussiaА. ЗагородниковInstitute of Applied Physics ISU, Irkutsk, 664020 Russia

2019en

ABI

Annotatsiya

Sparse digital antenna arrays constitute a promising detection technique for future large-scale cosmic-ray observatories. It has recently been shown that this kind of instrumentation can provide a resolution of the energy and of the shower maximum on the level of other cosmic-ray detection methods. Due to the dominant geomagnetic nature of the air-shower radio emission in the traditional frequency band of 30 to 80 MHz, the amplitude and polarization of the radio signal strongly depend on the azimuth and zenith angle of the arrival direction. Thus, the estimation of the efficiency and subsequently of the aperture of an antenna array is more complex than for particle or Cherenkov-light detectors. We have built a new efficiency model based on utilizing a lateral distribution function as a shower model, and a probabilistic treatment of the detection process. The model is compared to the data measured by the Tunka Radio Extension (Tunka-Rex), a digital antenna array with an area of about 1 km$^2$ located in Siberia at the Tunka Advanced Instrument for Cosmic rays and Gamma Ray Astronomy (TAIGA). Tunka-Rex detects radio emission of air showers using trigger from air-Cherenkov and particle detectors. The present study is an essential step towards the measurement of the cosmic-ray flux with Tunka-Rex, and is important for radio measurements of air showers in general.

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Identifikatorlar

DOI: 10.22323/1.358.0331

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