Multichannel SiPM test readout system for gamma-ray measurements with monolithic inorganic CeBr3
Abstract
Energy resolution and the detection efficiency for gamma quanta are fundamental properties in the construction of detectors for ionizing radiation. In this study, a SiPM-based photodetector coupled to a monolithic inorganic CeBr3 crystal is exposed to gamma rays in order to study the performance of the CeBr3 crystal. Measurements are made using three different radioactive sources - 137Cs, 22Na, and 60Co. For each source, the measurements are conducted at several SiPM bias voltages. Furthermore, two CeBr3 crystals with different thicknesses are used in order to study how detector efficiency is affected by crystal dimensions. A preliminary analysis of the data is presented.
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