A radio air shower surface detector as an extension for IceCube and IceTop

Details A radio air shower surface detector as an extension for IceCube and IceTop A radio air shower surface detector as an extension for IceCube and IceTop

2007-08-24

arxiv.org/abs/0708.3331v1

Nucl.Instrum.Meth.Suppl.A604:53-56,2009

Astronomy and Astrophysics

Astrophysics

4 pages, 6 figures, to be published in Proceedings of the 30th International Cosmic Ray Conference

Scientific paper

10.1016/j.nima.2009.03.179

The IceCube neutrino detector is built into the Antarctic ice sheet at the South Pole to measure high energy neutrinos. For this, 4800 photomultiplier tubes (PMTs) are being deployed at depths between 1450 and 2450 meters into the ice to measure neutrino induced charged particles like muons. IceTop is a surface air shower detector consisting of 160 Cherenkov ice tanks located on top of IceCube. To extend IceTop, a radio air shower detector could be built to significantly increase the sensitivity at higher shower energies and for inclined showers. As air showers induced by cosmic rays are a major part of the muonic background in IceCube, IceTop is not only an air shower detector, but also a veto to reduce the background in IceCube. Air showers are detectable by radio signals with a radio surface detector. The major emission process is the coherent synchrotron radiation emitted by e+ e- shower particles in the Earths magnetic field (geosynchrotron effect). Simulations of the expected radio signals of air showers are shown. The sensitivity and the energy threshold of different antenna field configurations are estimated.

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