First detection of Cherenkov light from cosmic-particle-induced air showers by Geiger-mode avalanche photodiodes

• Published in: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 581; no. 1; pp. 143 - 146
• Main Authors: Biland, A., Britvitch, I., Lorenz, E., Otte, N., Pauss, F., Renker, D., Ritt, S., Roeser, U., Schneebeli, M.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 21.10.2007
• Subjects: Geiger-mode avalanche photodiodes; Imaging atmospheric Cherenkov telescope; Imaging atmospheric Cherenkov telescope; Geiger-mode avalanche photodiodes
• ISSN: 0168-9002; 1872-9576
• DOI: 10.1016/j.nima.2007.07.050

We report on first tests of Geiger-mode APDs (G-APD) to detect Cherenkov light from cosmic particle induced air showers. The motivation for this study stems from the requirement to improve the sensitivity of large imaging atmospheric Cherenkov telescopes (IACT) by replacing the photomultipliers (PMT) by high detection efficiency G-APDs. Three tests have been carried out, confirming sufficiently high light sensitivity of blue-sensitive G-APDs as future replacement of PMTs in IACTs.