Towards effective indirect radioisotope energy converters with bright and radiation hard scintillators of (Gd,Y) 3 Al 2 Ga 3 O 12 family

Ceramics of quaternary garnets (Gd,Y)3Al2Ga3O12 doped with Ce, Tb have been fabricated and evaluated as prospective materials for indirect energy converters of α-and β-voltaic. Samples were characterized at excitation with an X-ray source and an intense 150 keV electron beam and showed good temperat...

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Bibliographic Details
Published in:Nuclear engineering and technology 2022, Vol.54 (7), p.2579-2585
Main Authors: Korzhik, M, Abashev, R, Fedorov, A, Dosovitskiy, G, Gordienko, E, Kamenskikh, I, Kazlou, D, Kuznecova, D, Mechinsky, V, Pustovarov, V, Retivov, V, Vasil'ev, A
Format: Article
Language:Korean
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Summary:Ceramics of quaternary garnets (Gd,Y)3Al2Ga3O12 doped with Ce, Tb have been fabricated and evaluated as prospective materials for indirect energy converters of α-and β-voltaic. Samples were characterized at excitation with an X-ray source and an intense 150 keV electron beam and showed good temperature stability of their emission and tolerance to irradiation. The role of X-rays accompanied the α-particle emitting in the increase of the conversion efficiency is clarified. The garnet-type structure of the matrix in the developed materials allows the production of quality crystalline mass with a light yield exceeding that of the commonly used YAG: Ce scintillator by a factor of two times.
ISSN:1738-5733
2234-358X