Abstrakt
Present characteristics of scintillating properties of rare earth aluminum garnets RE3Al5O12, where RE are Lu, Y or their mixture in asked ratio, doped with Ce3+ or Pr3+ are presented. The highest light yield up to 27000 ph/MeV was observed on LuAG:Ce crystals (CZ grown) while that observed on LuAG:Pr can reach ∼17000 ph/MeV at 10 μs shaping time.
Mixed (Lu, Y)AG crystals can reach ∼23500 ph/MeV (Ce3+ doped ones) or ∼16500 ph/MeV (Pr3+ doped ones). The latest development in LPE grown Ce3+ or Pr3+ doped epitaxial garnet layers has shown that their photoelectron yields are comparable with that of the best Ce3+ or Pr3+ doped crystals.
Light yields of LuAG:Ce or LuAG:Pr crystals can increase due to annealing in air up to 20 or 29%, respectively.