Electronics for the camera of the First G-APD Cherenkov Telescope (FACT) for ground based gamma-ray astronomy
Within the FACT project, we construct a new type of camera based on Geiger-mode avalanche photodiodes (G-APDs). Compared to photomultipliers, G-APDs are more robust, need a lower operation voltage and have the potential of higher photon-detection efficiency and lower cost, but were never fully tested in the harsh environments of Cherenkov telescopes. The FACT camera consists of 1440 G-APD pixels and readout channels, based on the DRS4 (Domino Ring Sampler) analog pipeline chip and commercial Ethernet components. Preamplifiers, trigger system, digitization, slow control and power converters are integrated into the camera.
Keywords: Photon detectors for UV ; visible and IR photons (solid-state) (PIN diodes ; APDs ; Si-PMTs ; G-APDs ; CCDs ; EBCCDs ; EMCCDs etc) ; Gamma telescopes ; Cherenkov and transition radiation ; Particle detectors
Record created on 2012-06-15, modified on 2016-08-09