OPTICAL AND SCINTILLATION PROPERTIES OF MG2+ - CODOPED GD2YAL2.4GA2.6O12:CE CERAMIC SCINTILLATOR
DOI:
https://doi.org/10.55766/sujst-2024-03-e05614Keywords:
Ce3+, Gd2YAl2.4Ga2.6O12:Ce, Luminescence, Scintillation, Transparent ceramicAbstract
Mg2+ - codoped Gd2YAl2.4Ga2.6O12:Ce ceramic scintillator was fabricated by sintering in an oxygen atmosphere and hot isostatic pressing. It exhibits a high integral scintillation efficiency of 400 % of Bi4Ge3O12 crystal scintillator. Under excitation with 662 keV γ rays, it shows a light yield value of 22,200 photons/MeV along with scintillation decay times of 24.5 ns (24%) + 75 ns (76%). The scintillation response under excitation with 5.5 MeV α particles from a 238Pu source was also investigated and discussed.
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