M. Urban et al., THE USE OF AN ULTRA-VIOLET CAMERA IN THE ATMOSPHERIC CHERENKOV TECHNIQUE, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 368(2), 1996, pp. 503-511
The atmospheric Cherenkov technique for gamma ray astronomy is shown t
o be feasible using an ultraviolet (UV) camera on moon-lit-nights. The
Whipple telescope has been used as the reflector and the Crab Nebula
as the standard gamma ray beam. Our energy threshold is 1.2 TeV which
is compared to 0.4 TeV in the visible.