Estimating of Cherenkov Radiation in Extensive Air Showers Using CORSIKA Code for Tunka133 EAS Cherenkov Array

Abstract

The simulation of Cherenkov light Lateral distribution function (LDF) in Extensive Air Showers (EAS) initiated primary particles such as primary calcium, argon, proton iron nuclei, neutron and nitrogen have been performed using CORSIKA program for conditions and configurations of Tunka133 EAS Cherenkov array. The simulation was fulfilled at the high energy range 1014-1016eV for four different zenith angles 0o, 10o, 15oand 30o. The results of the simulated Cherenkov light LDF are compared with the measurements of Tunka133 EAS array for the same particles and energy range mentioned above. This comparison may give the good ability to reconstruct the energy spectrum and mass composition of the primary cosmic ray particles in EAS. The main feature of the given approach consists of the possibility to make a library of Cherenkov light LDF samples which could be utilized for analysis of real events which can be detected with different EAS arrays and reconstruction of the primary cosmic rays energy spectrum and mass composition of EAS particles.

Approximating the Lateral Distribution Function of Cherenkov Radiation as a Function of the Particle Type for Tunka-133 Array

“…De Mitri has studied CRs energy spectrum using ARGO-YBJ experiment in the energy range (TeVs→ PeVs) [7]. In this paper, the LDF simulation of Cherenkov radiation was fulfilled utilizing CORSIKA code around the knee region for configurations of Tunka-133 array [8,9] at the energy 3PeV for vertical showers and several primary particles, such as: (H, He, Li, Be, Ne, Na, Mg, Al, Sc, Ti, V and Cr). An approximating of Cherenkov light LDF has been obtained by depending on Breit-Wigner model [10,11], by basing on numerical simulation method as a function of the particle's type.…”