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D'Incecco, Marco; Galbiati, Cristiano; Giovanetti, Graham K.; Korga, George; Xinran Li; Mandarano, Andrea; Razeto, Alessandro; Sablone, Davide; Savarese, Claudio
IEEE transactions on nuclear science, 2018-Jan., 20180101, Letnik: 65, Številka: 1Journal Article
We report on the realization of a novel silicon photomultiplier (SiPM)-based, cryogenic photosensor with an active area of 24 cm 2 that operates as a single-channel analog detector. The device is capable of single-photon counting with a signal-to-noise ratio better than 13, a dark rate lower than 10 -2 Hz/mm 2 , and an overall photon detection efficiency significantly larger than traditional photomultiplier tubes. This development makes SiPM-based photosensors strong candidates for the next generation of dark matter and neutrino detectors, which will require multiple square meters of photosensitive area, low levels of intrinsic radioactivity, and a limited number of detector channels.
