[20p-224B-1~8] 2.1 Radiation physics and Detector fundamentals

[20p-224B-3] Effects of 4-6 group ions co-doping on luminescence in Gd₃Ga₃A₂O₁₂: Ce single crystals

〇Mutsumi Ueno¹, Kyoung Jin Kim¹, Kei Kamada^2,3, Takayuki Nihei³, Masao Yoshino¹, Akihiro yamaji¹, Shunsuke Kurosawa^2,4, Yuui Yokota², Yuji Ohashi², Akira Yoshikawa^1,2,3 (1.IMR Tohoku Univ., 2.NICHe Tohoku Univ., 3.C&A, 4.Yamagata Univ.)

Keywords:Scintillator, Radiation detector

Radiation detectors are used in a wide range of fields such as nuclear medicine diagnosis equipment and resource exploration equipment, and scintillators are used for most of them. It has been reported that it has excellent characterisitics in Ce-doped Gd₃Ga₃Al₂O₁₂ (Ce:GAGG) single crystals so far. Futhertmore, it has been reported that shourtening of the lifetime of fluorescence can be achieved by co-doping Mg2+. In this report, we report on the composition analysis and characterization of Ce:GAGG single crystals co-doped with group 4~6 cations by the micro pulling down method.