Author/Authors :
Anderhub، نويسنده , , H. and Backes، نويسنده , , M. and Biland، نويسنده , , A. and Boller، نويسنده , , A. and Braun، نويسنده , , I. and Bretz، نويسنده , , T. and Commichau، نويسنده , , S. and Commichau، نويسنده , , V. and Dorner، نويسنده , , D. and Gendotti، نويسنده , , A. and Grimm، نويسنده , , O. and von Gunten، نويسنده , , H. F. Hildebrand، نويسنده , , D. and Horisberger، نويسنده , , U. and Kِhne، نويسنده , , J.-H. and Krنhenbü، نويسنده ,
Abstract :
Imaging Atmospheric Cherenkov Telescopes (IACT) for Gamma-ray astronomy are presently using photomultiplier tubes as photo sensors. Geiger-mode avalanche photodiodes (G-APD) promise an improvement in sensitivity and, important for this application, ease of construction, operation and ruggedness. G-APDs have proven many of their features in the laboratory, but a qualified assessment of their performance in an IACT camera is best undertaken with a prototype. This paper describes the design and construction of a full-scale camera based on G-APDs realized within the FACT project (First G-APD Cherenkov Telescope).
Keywords :
Geiger-mode avalanche photodiode , Gamma-ray astronomy , Cherenkov telescope , Extensive Air Shower
