A novel camera type for very high energy gamma-ray astronomy based on Geiger-mode avalanche photodiodes

H. Anderhub , M. Backes , A. Biland , A. Boller , I. Braun , T. Bretz , S. Commichau , V. Commichau

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D. Dorner A. Gendotti O. Grimm H. von Gunten D. Hildebrand U. Horisberger T. Kr\"ahenb\"uhl D. Kranich E. Lorenz W. Lustermann K. Mannheim D. Neise F. Pauss D. Renker W. Rhode M. Rissi U. R\"oser S. Rollke L. S. Stark J.-P. Stucki G. Viertel P. Vogler Q. Weitzel

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classification 🌌 astro-ph.IM

keywords beencamerag-apdavalanchegeiger-modephotodiodestimeachieved

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Geiger-mode avalanche photodiodes (G-APD) are promising new sensors for light detection in atmospheric Cherenkov telescopes. In this paper, the design and commissioning of a 36-pixel G-APD prototype camera is presented. The data acquisition is based on the Domino Ring Sampling (DRS2) chip. A sub-nanosecond time resolution has been achieved. Cosmic-ray induced air showers have been recorded using an imaging mirror setup, in a self-triggered mode. This is the first time that such measurements have been carried out with a complete G-APD camera.

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A novel camera type for very high energy gamma-ray astronomy based on Geiger-mode avalanche photodiodes

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