Status and first results of Tunka-Rex, an experiment for the radio detection of air showers
نویسنده
چکیده
Tunka-Rex is a new radio detector for extensive air showers from cosmic rays, built in 2012 as an extension to Tunka133. The latter is a non-imaging air-Cherenkov detector, located near Lake Baikal, Siberia. With its 25 radio antennas, Tunka-Rex extends over an area of 1 km2 with a spacing of 200 m and therefore is expected to be sensitive to an primary energy range of approximately 1017-1018 eV. Using Trigger and DAQ from Tunka-133, this setup allows for a hybrid analysis with the air-Cherenkov and radio technique combined. The main goals of Tunka-Rex are to investigate the achievable precision in the reconstruction of energy and composition of the primary cosmic rays by cross-calibrating to the well understood air-Cherenkov detector. While the focus in the first season was to understand the detector and calibrate the detector, an early analysis already proves the detection of air-shower events with dependencies on energy and arrival direction as expected from a geomagnetic emission mechanism. Furthermore, in near future tests will be conducted for a joint operation of Tunka-Rex with Tunka-HiSCORE, a prototype gamma ray observatory at the same site, and the upcoming scintillator extension of Tunka-133. © 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Selection and peer review is the responsibility of the Conference lead organizers, Frank Avignone, University of South Carolina, and Wick Haxton, University of California, Berkeley, and Lawrence Berkeley Laboratory
منابع مشابه
The Tunka Radio Extension (Tunka-Rex): Status and First Results
Tunka-Rex is a new radio antenna array which extends the Tunka experiment in Siberia close to lake Baikal. It consists of 20 antennas on an area of 1km2 which measure the radio emission of high-energy air showers. Tunka-Rex is triggered by the photomultiplier array of Tunka measuring air-Cherenkov light of air showers in the energy range from about 1016 eV to 1018 eV. This configuration allows ...
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