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T: Fachverband Teilchenphysik

T 90: Gammaastronomie IV

T 90.1: Gruppenbericht

Donnerstag, 31. März 2011, 16:45–17:05, 30.41: 104

Status of the FACT Camera — •Quirin Weitzel — ETH Zurich, Institute for Particle Physics, 8093 Zurich, Switzerland

The First G-APD Cherenkov Telescope (FACT) project develops a novel camera type for very high energy gamma-ray astronomy. A total of 1440 Geiger-mode avalanche photodiodes (G-APD) are used for light detection, each accomponied by a solid light concentrator. All electronics for analog signal processing, digitization and triggering are fully integrated into the camera body. The event data are sent via Ethernet to the counting house. In order to compensate for gain variations of the G-APDs an online feedback system analyzing calibration light pulses is employed. Once the construction and commissioning of the camera is finished it will be transported to La Palma, Canary Islands, and mounted on the refurbished HEGRA CT3 telescope structure. In this talk the architecture and status of the FACT camera is presented.