pp. 2203-2208
S&M2608 Research Paper of Special Issue https://doi.org/10.18494/SAM.2021.3323 Published: June 24, 2021 Photoluminescence and Scintillation Properties of Tb:GdTaO4 Crystals [PDF] Daisuke Nakauchi, Takumi Kato, Noriaki Kawaguchi, and Takayuki Yanagida (Received January 31, 2021; Accepted April 12, 2021) Keywords: scintillator, radioluminescence, photoluminescence, crystal growth
Tb-doped GdTaO4 crystals were synthesized to investigate their photoluminescence and scintillation properties. Tb:GdTaO4 exhibits photo- and radioluminescence characterized by several sharp peaks due to 4f–4f transitions of Tb3+. The photo- and radioluminescence decay time constants are 500–900 μs. The values become short with increasing Tb concentration and are typical for the 4f–4f transitions of Tb3+. From the quantum yield (QY), radioluminescence spectra, and pulse height under 137Cs γ-rays, the 1% Tb:GdTaO4 crystal shows the highest scintillation output among the samples.
Corresponding author: Daisuke NakauchiThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Daisuke Nakauchi, Takumi Kato, Noriaki Kawaguchi, and Takayuki Yanagida, Photoluminescence and Scintillation Properties of Tb:GdTaO4 Crystals, Sens. Mater., Vol. 33, No. 6, 2021, p. 2203-2208. |