A Novel Silicon Photomultiplier Readout Architecture for Low-light Applications
V. Cianciolo, Yu. V. Efremenko, L. Fabris, S. K. Imam, S. I. Penttila, J. C. Ramsey, R. Santos Estrada

TL;DR
This paper presents a new silicon photomultiplier readout architecture optimized for low-light detection, enhancing efficiency and reducing cross-talk in photon counting applications.
Contribution
It introduces a novel readout architecture that improves photon detection efficiency and minimizes cross-talk for SiPM-based low-light applications.
Findings
Enhanced photon detection efficiency at higher SiPM voltages
Reduced optical cross-talk in the readout system
Suitable for low-light photon counting applications
Abstract
In this article we describe the photon detection readout electronics for the nEDM@SNS experiment. The chosen "photon counting" architecture, which utilizes high-efficiency silicon photomultipliers (SiPMs) and is appropriate for low-light applications, allows the use of a relatively high SiPM operating voltage. This maximizes photon detection efficiency and minimizes gain/efficiency voltage-dependence while eliminating optical cross-talk.
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