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Paper: The Telescope Array and Its Low Energy Extension: Status and Future Prospects for Ultrahigh Energy Cosmic Ray Physics in the Northern Hemisphere.
Volume: 426, Proceedings of the 2009 Snowbird Particle Astrophysics and Cosmology Workshop (SNOWPAC 2009)
Page: 11
Authors: Jui, C. C. H.; TA/TALE Collaboration
Abstract: The Telescope Array (TA) Experiment, hosted by the University of Utah, is the largest ultra-high energy (UHE) cosmic ray detector in the northern hemisphere. It is located near Delta, Utah, about 200 kilometers southwest of Salt Lake City. The detector consists of 512 3 m2 scintillation counters distributed in a rectangular grid of 1.2 km spacing. At the corners of the ground array sit three fluorescence detector stations. Each station views 108° in azimuth and between 3°–31° in elevation looking over the ground array providing full hybrid coverage at above 1019 eV. TA began operation at the beginning of 2008. A low-energy extension to TA (TALE) will add a fourth fluorescence site at about 6 km from the station at Long Ridge. An array of 24 telescopes covering 200° degrees in azimuth will provide stereo observation in the 1018–1019 eV decade. A tower detector, with 4 m diameter mirrors viewing between 31°–73° in elevation, will extend fluorescence and hybrid observations down to 1016.5 eV, in conjunction with an infill array of scintillation and muon detectors.
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