Operation of large arrays of silicon photomultipliers (SiPM) in tanks of noble liquids requires low noise, low power front-end amplifiers able to operate reliably in a cryogenic environment. A design based on discrete components is presented, which achieves a white voltage noise of 0.37 nV/vHz at 2.4 mW/channel, or 0.25 nV/vHz at 4.6 mW/channel. Combined with an optimal series/parallel combination of SiPMs at the input, it demonstrates excellent single photon sensitivity up to 96 6x6 mm2 SiPMs (total area 34.6 cm2). The measured results are in a good match with calculated values, predicting the possibility to achieve a clear separation of photoelectron peaks up to a total SiPM area of 200 cm2. The long term reliability of the design was assessed, with emphasis on aging due to hot-carrier effects.
Carniti, P., Cristaldo, E., Falcone, A., Gotti, C., Pessina, G., Terranova, F. (2022). Front-end Electronics for Single Photon Detection with Large Arrays of SiPMs in Liquid Argon. In 2022 IEEE NSS/MIC RTSD - IEEE Nuclear Science Symposium, Medical Imaging Conference and Room Temperature Semiconductor Detector Conference. Institute of Electrical and Electronics Engineers Inc. [10.1109/NSS/MIC44845.2022.10399077].
Front-end Electronics for Single Photon Detection with Large Arrays of SiPMs in Liquid Argon
Carniti P.;Falcone A.;Gotti C.;Pessina G.;Terranova F.
2022
Abstract
Operation of large arrays of silicon photomultipliers (SiPM) in tanks of noble liquids requires low noise, low power front-end amplifiers able to operate reliably in a cryogenic environment. A design based on discrete components is presented, which achieves a white voltage noise of 0.37 nV/vHz at 2.4 mW/channel, or 0.25 nV/vHz at 4.6 mW/channel. Combined with an optimal series/parallel combination of SiPMs at the input, it demonstrates excellent single photon sensitivity up to 96 6x6 mm2 SiPMs (total area 34.6 cm2). The measured results are in a good match with calculated values, predicting the possibility to achieve a clear separation of photoelectron peaks up to a total SiPM area of 200 cm2. The long term reliability of the design was assessed, with emphasis on aging due to hot-carrier effects.
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