期刊
CRYSTENGCOMM
卷 22, 期 14, 页码 2502-2506出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ce00105h
关键词
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资金
- Government of the Russian Federation [14.W03.31.0004]
- AIDA2020 Project
A single crystal scintillation material (Gd-0.5-Y-0.5)(3)Al2Ga3O12 (GYAGG) doped with Ce and codoped with Mg at a small concentration was grown by the Czochralski technique and studied for its scintillation properties for the first time. The Czochralski technique enabled this multi-ionic garnet to be produced from a melt in a single crystal form and allowed the problems of codoping peculiar to this material in a ceramic form to be solved. Due to codoping, the scintillation kinetics of a single crystal is shorter than that of GYAGG ceramics produced before. The scintillation properties of GYAGG were found to be superior to those of the solely Ce-doped or Mg-codoped Gd3Al2Ga3O12 crystal. The light yield of GYAGG:Ce,Mg was found to be 52 000 ph MeV-1, the coefficient of the light yield temperature dependence in the temperature range 20-100 degrees C was equal to 0.37%/degrees C, and the scintillation decay time constant was 50 ns.
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