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(Gd,Ce)2O3-Al2O3-SiO2 scintillation glass

2022; Elsevier BV; Volume: 580; Linguagem: Inglês

10.1016/j.jnoncrysol.2021.121393

1873-4812

A. Amelina, А. Л. Михлин, Svetlana K. Belus, Alexander L. Bondarev, A. Borisevich, Daria Kuznetsova, I. Komrotov, V. Mechinsky, Д. Koзлов, Pavel A. Volkov, G. Dosovitskiy, M. Korzhik,

Nuclear materials and radiation effects

Heavy scintillation glass of Gd2O3-Al2O3-SiO2 composition doped with Ce, combining high light yield and fast scintillation kinetics, was developed. The glass samples were prepared at 1500 °C by a melt-quench technique; the resulting glass was colorless and satisfactorily homogeneous. A photoluminescence study showed that a variety of sites for the Ce3+ ion stabilization exists in the glass, but the phenomenon was found less pronounced compared to BaO-Gd2O3-SiO2 glass. The glass has demonstrated ∼4 times faster scintillation kinetics and a minor drop of the light yield related to barium-gadolinium-silica glass, which makes this material of particular interest for large volume detectors in high energy physics, medical imaging, and other applications due to a low-cost production capability.