Abstract The GADAST detector, part of the EXPERT project within the Super-FRS experimental program at FAIR, is a scintillation module array, designed to detect light charged particles and γ-ray emitted from daughter nuclei, formed in two-proton radioactivity decays. In this paper, 32 CsI(Tl) scintillation modules of GADAST are examined. Their energy resolution and light output non-uniformity are measured as a part of site acceptance test. The energy resolution for 1 MeV γ-rays and light output non-uniformity at 662 keV are evaluated.
Khamidullin et al. (Fri,) studied this question.