pp. 499-506
S&M3187 Research Paper of Special Issue https://doi.org/10.18494/SAM4136 Published: February 20, 2023 Scintillation Light Yields of Tb-doped SiO2 Glasses [PDF] Noriaki Kawaguchi, Kenichi Watanabe, Daiki Shiratori, Takumi Kato, Daisuke Nakauchi, and Takayuki Yanagida (Received October 12, 2022; Accepted January 5, 2023) Keywords: scintillator, light yield, Tb3+ ions, glass
We investigated the scintillation light yields of Tb-doped SiO2 glasses. We prepared 0.05, 0.1, and 0.5% Tb-doped SiO2 glasses by melting and solidifying sintered ceramic rods using an oxygen burner. The obtained samples showed no crystalline phases in X-ray diffraction measurements. Pulse height spectra of the Tb-doped SiO2 samples were measured under γ-ray excitation using a measurement system for slow decay pulses. The number of channels at the Compton edge of the 0.5% Tb-doped sample was the highest and was approximately 50% of that of a commercial lithium glass scintillator (GS20). By considering the light yield of GS20 and the wavelength dependence of the quantum efficiency of the photomultiplier tube, the light yield of the 0.5% Tb-doped SiO2 sample was estimated as 3800 photons/MeV.
Corresponding author: Noriaki KawaguchiThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Noriaki Kawaguchi, Kenichi Watanabe, Daiki Shiratori, Takumi Kato, Daisuke Nakauchi, and Takayuki Yanagida , Scintillation Light Yields of Tb-doped SiO2 Glasses , Sens. Mater., Vol. 35, No. 2, 2023, p. 499-506. |