The First G-APD Cherenkov Telescope

The First G-APD Cherenkov Telescope (FACT) is the first imaging atmospheric Cherenkov telescope using Geiger-mode avalanche photodiods (G-APDs) as photo sensors. The rather small, low-cost telescope will not only serve as a test bench for this technology in Cherenkov astronomy, but also monitor bright active galactic nuclei (AGN) in the TeV energy range.


Latest News
2014 MAR 25: Detector performance paper available on arXiv
2013 SEP 01: Quick Look Analysis results publicly available
2013 JUN 14: Paper on FACT Design and Operation published JINST
2012 DEC 24: Quick Look Analysis on-site going online
2012 MAY 01: New feed back system going online
2011 NOV 02: FACT Press Release French, German
2011 OCT 11: FACT First Light
2011 OCT 03: The camera is mounted on the telescope
2011 SEP 30: The camera arrived on the island
2011 SEP 22: The FACT camera leaves Zurich for La Palma