Speaker
Dmitriy Kostunin
(Karlsruhe Institute of Technology (KIT))
Description
Tunka-Rex is an array of currently 25 radio antennas spaced at approximately 200 m distance. Tunka-Rex is located at the Tunka site in Siberia, Russia and mainly funded by the Helmholtz Russian Joint Research Group HRJRG-303. It started operation in October 2012 sharing the data-acquisition with the Tunka-133 air-Cherenkov array. Thus, for each air-shower the antenna signal is recorded simultaneously with the air-Cherenkov signal. This is an ideal situation to perform a cross-calibration between both methods, and to determine the precision of Tunka-Rex for the energy and the maximum of the air shower in a purely experimental way.
Consequently, the main purpose of Tunka-Rex is to determine the performance of the radio technique for cosmic-ray air showers using economic technology. Provided that the achieved precision is satisfactory, Tunka-Rex can be triggered by the scintillator extension of Tunka-133 during day time and enhance the total event statistics and reconstruction accuracy of Tunka around 1 EeV. In this meeting, we will present the current status of the experiment, its calibration, and first results on the reconstruction of the shower energy.
Primary author
Frank G. Schröder
(Karlsruhe Institute of Technology (KIT))
Co-authors
Collaboration Tunka-Rex
(Siberia)
Dmitriy Kostunin
(Karlsruhe Institute of Technology (KIT))
