Design & development of position sensitive detector for hard X-ray using SiPM and new generation scintillators

TL;DR

This paper presents the development of a position-sensitive hard X-ray detector module using a CeBr3 scintillator and a custom SiPM array, enabling spectral and spatial measurements for high-energy astrophysics applications.

Contribution

It introduces a novel detector module design combining a CeBr3 scintillator with a SiPM array for improved position sensitivity in hard X-ray detection.

Findings

Successful spectral measurement capability demonstrated.

Position measurement within the scintillator achieved.

Preliminary results show promising performance.

Abstract

There is growing interest in high-energy astrophysics community for the development of sensitive instruments in the hard X-ray energy extending to few hundred keV. This requires position sensitive detector modules with high efficiency in the hard X-ray energy range. Here, we present development of a detector module, which consists of 25 mm x 25 mm CeBr3 scintillation detector, read out by a custom designed two dimensional array of Silicon Photo-Multipliers (SiPM). Readout of common cathode of SiPMs provides the spectral measurement whereas the readout of individual SiPM anodes provides measurement of interaction position in the crystal. Preliminary results for spectral and position measurements with the detector module are presented here.