Telescope Array Project: Difference between revisions

Revision as of 13:11, 12 February 2012

Revision as of 17:32, 19 July 2012

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==Surface detector==

The surface detectors are evenly distributed across a 762 km² grid array with 1.2 km between each unit. Each surface detector has an assembled weight of 250 kg and consists of a power supply, two layers of scintillation detectors and electronics. Power is generated by a 120W solar panel and stored in a sealed lead-acid battery. The system has the capacity to operate for one week in complete darkness. Each scintillation detector layer is made of extruded plastic scintillator that is 1.2 cm thick and has an area of 3m². The photo multiplier tube is connected to the scintillator via 96 wave length wavelength-shifting fibers.

==FD station, telescope, and camera==

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The TALE tower is a tower of fluorescence telescopes looking from near zenith to near horizon. These telescopes have 3m diameter mirrors to push the energy threshold of observable events as low as possible.

The TALE project also has an infill array of scintillator ground array stations spaced about 500m apart. These stations measure charged particle densities (the shower footprint) at the Earth's surface for lower energy events approaching 3x10¹⁶eV

==References==