Speaker
Description
This study presents a novel gamma-ray detector module based on a 16-element MPPC-13360-3050 matrix (Hamamatsu) coupled with YSO, GaGG, and BGO scintillators, evaluating its performance across a 60 keV – 2500 keV energy range. Each 3×3 mm² SiPM element features a 1440 pixels/mm² density, 40% photon detection efficiency (at 470 nm), and operates at 55.5 V. The detector was characterized using gamma-ray sources (Am-243, Co-60, Cs-137, Na-22, Th-228).
The GaGG and YSO-coupled detectors exhibited a perfectly linear response between signal amplitude and gamma-ray energy (26.3 keV – 1.33 MeV). The BGO scintillator demonstrated an extended linearity up to >1 MeV but showed reduced sensitivity below 300 keV. At 662 keV, the measured energy resolutions were 8.17% (GaGG), 9.3% (YSO), and 10.2% (BGO). These results highlight the module’s versatility for spectroscopic applications across a broad energy range.
| Workshop topics | Applications |
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