Performance of Several Solid State Photomultipliers with CLYC Scintillator

TL;DR

This study evaluates the performance of three solid state photomultipliers coupled with CLYC scintillators across various temperatures, focusing on linearity, energy resolution, and pulse discrimination for gamma and neutron detection.

Contribution

It provides a comparative analysis of SSPMs' performance with CLYC, highlighting temperature effects on key detection parameters.

Findings

Performance varies with temperature for all SSPMs.

Some SSPMs show superior pulse discrimination capabilities.

Energy resolution is affected by temperature changes.

Abstract

$Cs_2LiYCl_6:Ce^{3+}$ (CLYC) is an inorganic scintillator that has recently garnered attention for its ability to detect and discriminate between gammas and thermal neutrons. We investigate several important performance parameters of three different solid state photomultipliers (SSPMs) when reading out CLYC crystals: linearity, energy resolution, and pulse shape and discrimination ability. These performance parameters are assessed at a variety of temperatures between -20$^{\circ}$C and +50$^{\circ}$C.