Gamma-ray astrophysics in the MeV band is an exciting field in astronomy due to its potential for multi-messenger astrophysics. It has, however, remained under-explored when compared to other wavelengths. One reason for this observational gap is the difficulties with measuring these high-energy photons and the requirement of large amounts of detection material. In this work, we investigate the usage of large-volume GAGG scintillators for use as a calorimeter in future MeV telescopes. We developed a 5×5 array calorimeter utilizing 1×1×6 \ cm³ GAGG crystals with C-series SiPM readout. The calorimeter was tested at the High Intensity Gamma-ray Facility (HIGS) with monoenergetic beams ranging from 2-25 \ MeV. Finally, we also investigated larger 1×1×8 \ cm³ crystals and characterized their response across their depth when their surface treatment is either polished or frosted.
No takes yet. Share an insight, caveat, or question.
Shy et al. (2024) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: