credit University of Tokyo Institute for Cosmic Ray Research
The Telescope Array would include three fluorescene detectors like the one shown in this photo, located on three hilltops, plus 576 scintillation detectors spaced in a grid on the desert floor.
credit University of Utah
Each cosmic ray detector includes numerous sheds with doors that are opened during nighttime observing periods. The mirrors inside the sheds detect the faint ultraviolet fluorescent flash in the sky that is created when an incoming cosmic ray hits a gas molecule in Earth’s atmosphere.
credit University of Utah
This photo shows what a cosmic ray detected by the telescope looks like on a computer screen.
