Scintillation properties of Mo co-doped Ce:Gd_3Al_2Ga_3O_(12) single crystal scintillators

摘要

Rare earth activated wide band gap oxide crystals have been found very useful as detectors of ionizing radiation in nuclear and high-energy physics, astrophysics, nuclear medicine and industry. A number of crystals activated by Ce3+ ions have been studied as potential fast and efficient scintillators. The cerium doped multicomponent Gadolinium Aluminum Gallium Garnet (Ce ： Gd3 Al2Ga30i2, Ce:GAGG) is one of the recently developed scintillator material [1]. Our group reported that Ce:GAGG offers excellent scintillation properties of high light yield(46,000-56,000 phot/MeV) and fast decay time(55 ns) [2,3]. Recently, Mg and Ca co-doped GAGG was reported and noticeable decay time acceleration was obtained [4,5]. And co-doping effects of Li+ ions on Ce:GAGG was also reported [6]. In this study, we investigated Mo3+ co-doping effects on scintillation properties of Ce:GAGG scintillator.