Study of Silicon Photomultiplier Performance at Different Temperatures

TL;DR

This study investigates how the performance of Silicon Photomultipliers varies across a wide temperature range, focusing on dark noise reduction at low temperatures, with specific attention to the Photon Detection Efficiency near -50°C.

Contribution

The paper provides a comparative analysis of two SiPM samples over broad temperatures, showing no significant PDE variation, which informs low-temperature applications.

Findings

Dark noise decreases at lower temperatures.

No significant PDE change observed around -50°C.

Performance consistency across different SiPM brands.

Abstract

Decreasing the operation temperature of a Silicon Photo-Multiplier (SiPM) leads to a drop in its dark noise. Some experiments consider cold temperatures as an option for low noise applications of SiPM. One of those is the TAO detector, which requires operation at $T\approx -50~^\circ$C. A significant dependence of the Photon Detection Efficiency (PDE) of a SiPM on different temperatures was reported with a drastic drop around this temperature. In this paper, we present studies of performance for two samples of SiPMs from Hamamatsu and AdvanSID(FBK) companies in a broad temperature range. No significant difference for the PDE was observed.