A silicon photomultiplier maintains single-photon response and measurable gain at 9.4 mK with characterized dark-count and correlated noise, enabling proof-of-concept scintillator readout for cryogenic muon vetoes.
A method for characterizing after-pulsing and dark noise of PMTs and SiPMs
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abstract
Photo-multiplier tubes (PMTs) and silicon photo-multipliers (SiPMs) are detectors sensitive to single photons that are widely used for the detection of scintillation and Cerenkov light in subatomic physics and medical imaging. This paper presents a method for characterizing two of the main noise sources that PMTs and SiPMs share: dark noise and correlated noise (after-pulsing). The proposed method allows for a model-independent measurement of the after-pulsing timing distribution and dark noise rate.
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physics.ins-det 1years
2025 1verdicts
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Characterisation of silicon photomultipliers in a dilution refrigerator down to 9.4 mK towards a cryogenic cosmic-ray muon veto system
A silicon photomultiplier maintains single-photon response and measurable gain at 9.4 mK with characterized dark-count and correlated noise, enabling proof-of-concept scintillator readout for cryogenic muon vetoes.