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astro-ph1997★ 22 cited
Characteristics of the Multi-Telescope Coincidence Trigger of the HEGRA IACT System
N. Bulian, A. Daum, G. Hermann +12
The HEGRA--collaboration is operating a system of imaging atmospheric Cherenkov telescopes to search for sources of TeV-gamma-rays. Air showers are observed in stereoscopic mode wi…
astro-ph1997★ 7 cited
Calibration of the Sensitivity of Imaging Atmospheric Cherenkov Telescopes using a Reference Light Source
A. Frass, C. Koehler, G. Hermann +2
The sensitivity of an Imaging Atmospheric Cherenkov telescope is calibrated by shining, from a distant pulsed monochromatic light source, a defined photon flux onto the mirror. The…