Geiger-mode Avalanche Photodiodes (G-APD) bear the potential to significantly improve the sensitivity of Imaging Air Cherenkov Telescopes (IACT). We are currently building the First G-APD Cherenkov Telescope (FACT) by refurbishing an old IACT with a mirror area of 9.5 square meters and construct a new, fine pixelized camera using novel G-APDs. The main goal is to evaluate the performance of a complete system by observing very high energy gamma-rays from the Crab Nebula. This is an important field test to check the feasibility of G-APD-based cameras to replace at some time the PMT-based cameras of planned future IACTs like AGIS and CTA. In this article, we present the basic design of such a camera as well as some important details to be taken into account.
@article{arxiv.1010.2397,
title = {FACT -- the First Cherenkov Telescope using a G-APD Camera for TeV Gamma-ray Astronomy (HEAD 2010)},
author = {H. Anderhub and M. Backes and A. Biland and A. Boller and I. Braun and T. Bretz and S. Commichau and V. Commichau and M. Domke and D. Dorner and A. Gendotti and O. Grimm and H. von Gunten and D. Hildebrand and U. Horisberger and J. -H. Köhne and T. Krähenbühl and D. Kranich and B. Krumm and E. Lorenz and W. Lustermann and K. Mannheim and D. Neise and F. Pauss and D. Renker and W. Rhode and M. Rissi and M. Ribordy and U. Röser and L. S. Stark and J. -P. Stucki and O. Tibolla and G. Viertel and P. Vogler and K. Warda and Q. Weitzel},
journal= {arXiv preprint arXiv:1010.2397},
year = {2010}
}
Comments
Poster shown at HEAD 2010, Big Island, Hawaii, March 1-4, 2010