The Askar'yan Radio Array (ARA), a neutrino detector to be situated at the South Pole, will be sensitive to ultrahigh-energy cosmic neutrinos above 0.1 EeV and will have the greatest sensitivity within the favoured energy range 0.1 EeV up to 10 EeV. Neutrinos of this energy are guaranteed by the current observations of the GZK-cutoff by the HiRes and the Pierre Auger Observatories. The detection method is based on Cherenkov emission by a neutrino-induced cascade in the ice, coherent at radio wavelengths, which was predicted by Askar'yan in 1962 and verified in beam tests at SLAC in 2001. The detector is planned to consist of 37 stations with 16 antennas each, deployed at depth of up to 200 m under the ice surface. During the last polar season (2010–2011), a prototype station was successfully deployed and is taking data relevant to future analyses: ambient noise background studies and data for characterization of the South Pole ice sheet. The IIHE, as part of a worldwide collaboration of institutions in the USA, Asia, Oceania, and Europe, is contributing to the construction of the detector array, focusing on data acquisition methods. This talk will give a short report on the status of the ARA detector.
IOS Press, Inc.
6751 Tepper Drive
Clifton, VA 20124
Tel.: +1 703 830 6300
Fax: +1 703 830 2300 firstname.lastname@example.org
(Corporate matters and books only) IOS Press c/o Accucoms US, Inc.
For North America Sales and Customer Service
West Point Commons
Lansdale PA 19446
Tel.: +1 866 855 8967
Fax: +1 215 660 5042 email@example.com