S&M2849 Research Paper of Special Issue
Published: February 21, 2022
Radio-photoluminescence Properties of Heavy-element-based Alkaline Phosphate Glasses and Their Application to X-ray Imaging [PDF]
Daiki Shiratori, Yuma Takebuchi, Takumi Kato, Daisuke Nakauchi, Noriaki Kawaguchi, and Takayuki Yanagida
(Received October 15, 2021; Accepted November 25, 2021)
Keywords: radio-photoluminescence, dosimeter, X-ray image, glass, photoluminescence
A glass phosphor is an attractive material for applications in radiation detection because of its high workability and availability with a wide range of chemical compositions. Recently, the X-ray-induced luminescence of glasses containing various luminescent activators has been actively investigated worldwide. Among them, glass that exhibits the radio-photoluminescence (RPL) phenomenon is a promising material for not only dosimetry but also X-ray imaging applications. However, there are only a few materials that exhibit the RPL phenomenon, and thus there is room for material exploration. In this study, we found that Ag2O–R2O–BaO–Al2O3–P2O5 (R = K, Rb, Cs) glass, in which some of the constituents of the commercial RPL glass were replaced with heavy elements, shows RPL properties worthy of practical application. Our glass specimens have a spatial resolution of at least 8 LP/mm; furthermore, the fading of the emission from RPL centers was much lesser than that from commercial imaging plates.Corresponding author: Daiki Shiratori
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Cite this article
Daiki Shiratori, Yuma Takebuchi, Takumi Kato, Daisuke Nakauchi, Noriaki Kawaguchi, and Takayuki Yanagida, Radio-photoluminescence Properties of Heavy-element-based Alkaline Phosphate Glasses and Their Application to X-ray Imaging, Sens. Mater., Vol. 34, No. 2, 2022, p. 745-756.