pp. 457-463
S&M3532 Research Paper of Special Issue https://doi.org/10.18494/SAM4754 Published: February 20, 2024 Tm Concentration Dependence on Scintillation Properties of Y3Al5O12 Garnet Single Crystals [PDF] Toshiaki Kunikata, Prom Kantuptim, Daiki Shiratori, Takumi Kato, Daisuke Nakauchi, Noriaki Kawaguchi, and Takayuki Yanagida (Received October 27, 2023; Accepted January 16, 2024) Keywords: Tm-doped YAG, scintillation, single crystals, radiation detector
Tm-doped Y3Al5O12 (YAG) single crystals with different Tm concentrations (0.1, 0.5, 1.0, and 2.0%) were grown using the floating zone method. X-ray-induced scintillation spectra, scintillation decay curves, and γ-ray-induced pulse height spectra of the obtained Tm-doped YAG single crystals were investigated. All the samples showed emission peaks due to the 4f–4f transitions of Tm3+ ions, and the decay times were around 40–20 μs under X-ray excitation. The 0.5% Tm-doped YAG sample showed the highest light yield under 662 keV γ-ray excitation among the samples. The optimal dopant concentration of Tm-doped YAG single crystals was confirmed to be 0.5%.
Corresponding author: Toshiaki KunikataThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Toshiaki Kunikata, Prom Kantuptim, Daiki Shiratori, Takumi Kato, Daisuke Nakauchi, Noriaki Kawaguchi, and Takayuki Yanagida, Tm Concentration Dependence on Scintillation Properties of Y3Al5O12 Garnet Single Crystals, Sens. Mater., Vol. 36, No. 2, 2024, p. 457-463. |