Compositional screening of Ce-doped (Gd,Lu,Y)3(Al,Ga)5O12 ceramics prepared by quenching from melt and their luminescence properties

Ho3+ codoping of GGAG:Ce: a detailed analysis of acceleration of scintillation response and scintillation efficiency loss

“…20 High entropy alloys in multicomponent garnet family were also studied which was fueled by an interest to find unusual stable compositions with unique properties 21 and combinatorial research strategy was applied as well. 22 Effects of composition and growth parameters on phase formation in multicomponent aluminum garnet crystals was systematically studied. 23 Luminescence investigation focused on the interplay between the Ce 3+ luminescence center and the host due to decreasing ionization barrier of the Ce 3+ 5d 1 excited state, 24,25 traps states acting in scintillation mechanism were studied by thermoluminescence techniques.…”

Composite Detectors Based on Single-Crystalline Films and Single Crystals of Garnet Compounds

“…Meanwhile, new prospects in engineering of the garnet composite scintillators have been opened with the development of the bulk crystals of mixed (Lu,Gd,Tb) 3 (Al,Ga) 5 O 12 garnets possessing much higher light output even over 50,000 photon/MeV [ 43 , 44 , 45 ]. Nowadays, Ce-doped mixed garnets are among the most extensively developed garnet scintillators [ 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 ]. The focus of the recent studies was concentrated on mixed systems with the first (Lu,Gd,Tb) and second (Al,Ga) cation substitutions ( Figure 2 a).…”

Compositional engineering of multicomponent garnet scintillators: towards an ultra-accelerated scintillation response

“…The combination of the band-gap and defect engineering in multicomponent garnet family described above has been applied by many groups in scintillation community and enabled deeper understanding of the complex scintillation mechanisms in multicomponent garnets. [18][19][20][21][22][23][24][25][26][27][28][29] An interesting effect in scintillation decay was revealed in 2014 in LuAG:Ce,Mg 15 : at Mg-codoping such high that practically all cerium ions are stabilized in 4+ charge state: the scintillation decay is strongly accelerated and the decay time of its dominant component becomes substantially shorter (15ns) compared to that in LuAG:Ce without codoping (58 ns). Such a decay behavior could apparently not be explained by thermal ionization of 5d 1 excited state of Ce 3+ ion.…”

“…The combination of the band-gap and defect engineering in the multicomponent garnet family described above has been applied by many groups in the scintillation community and enabled a deeper understanding of the complex scintillation mechanisms in multicomponent garnets. 18–29…”