pp. 467-473
S&M3183 Research Paper of Special Issue https://doi.org/10.18494/SAM4138 Published: February 20, 2023 Radiation-induced Luminescence Properties of Ce-doped SrAl2O4 Crystal and Translucent Ceramic [PDF] Daisuke Nakauchi, Fumiya Nakamura, Takumi Kato, Noriaki Kawaguchi, and Takayuki Yanagida (Received September 30, 2022; Accepted January 11, 2023) Keywords: scintillator, radioluminescence, photoluminescence, afterglow, pulse height
A comparative study on the radioluminescence properties of Ce-doped SrAl2O4 single crystal and translucent ceramic was performed. The transmittance of the synthesized ceramic is 20–30% in the visible region. Both samples exhibit photo- and radioluminescence with a broad emission peaking at 380 nm. The decay curves are fitted by a single exponential decay function with decay time constants of 30–50 ns, consistent with the typical value of the emission for the 5d–4f transitions of Ce3+. From the pulse height spectra measured under 241Am γ-ray (59.5 keV) irradiation, the scintillation light yields are 17000 ph/MeV for the single crystal and 6100 ph/MeV for the synthesized ceramic. The scintillation light yield and afterglow of the present samples show a negative correlation.
Corresponding author: Daisuke NakauchiThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Daisuke Nakauchi, Fumiya Nakamura, Takumi Kato, Noriaki Kawaguchi, and Takayuki Yanagida, Radiation-induced Luminescence Properties of Ce-doped SrAl2O4 Crystal and Translucent Ceramic, Sens. Mater., Vol. 35, No. 2, 2023, p. 467-473. |