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Würzburg 2018 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 53: Kosmische Strahlung III

T 53.2: Vortrag

Mittwoch, 21. März 2018, 16:50–17:05, Philo-HS6

Towards a Radio Measurements of the Energy Spectrum of Cosmic Rays with Tunka-Rex — •Vladimir Lenok for the Pierre Auger collaboration — Institute for Nuclear Physics, Karlsruhe Institute of Technology, Karlsruhe, Germany

The Tunka Radio Extension is a radio detector for cosmic rays placed at the TAIGA (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) facility near Lake Baikal. The antenna array of the detector comprises 63 antennas spread over an area of about 1 km2 and receives triggers from co-located air-Cherenkov and particle detectors. During the last years, the experiment has evinced high resolution for the energy of cosmic rays. Our next goal in this direction is to estimate the flux of the primary cosmic rays via radio measurements. To carry out this estimation we developed a procedure of calculation of the array aperture based on an experimental estimation of the detection threshold and simulations of the efficiency taking into account the arrival direction and core position of the shower (relative to the antenna array). In the talk details of the energy reconstruction and the calculations of aperture will be presented. Based on the results of this estimation we plan to obtain the energy spectrum of cosmic rays with a lower uncertainty than for particle detectors, but the same level of statistics as for particle detectors.

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