pp. 557-562
S&M3933 Research Paper of Special Issue https://doi.org/10.18494/SAM5427 Published: February 7, 2025 Vacuum UV- and Radiation-induced Luminescence Properties of Sr3Y(PO4)3 Synthesized by Optical Floating Zone Technique [PDF] Kai Okazaki, Masanori Koshimizu, Daisuke Nakauchi, Yuma Takebuchi, Kensei Ichiba, Haruaki Ezawa, Takumi Kato, Noriaki Kawaguchi, and Takayuki Yanagida (Received October 31, 2024; Accepted December 16, 2024) Keywords: phosphate single crystal, photoluminescence, scintillation, radiation detection
A Sr3Y(PO4)3 single crystal was grown by the optical floating zone technique using four xenon arc lamps. The photoluminescence and scintillation properties in the vacuum ultraviolet (VUV)–visible range were investigated. A broad emission peak appeared at 300–600 nm under the irradiation of both VUV light and X-rays. The scintillation decay time constants were obtained to be 40 and 370 ms. They would be respectively related to self-trapped excitons and some defects. The light yield and energy resolution of Sr3Y(PO4)3 were revealed to be 260 photons/5.5 MeV-α and 19%, respectively, by measuring pulse height spectra of 241Am α-rays (5.5 MeV).
Corresponding author: Kai Okazaki![]() ![]() This work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Kai Okazaki, Masanori Koshimizu, Daisuke Nakauchi, Yuma Takebuchi, Kensei Ichiba, Haruaki Ezawa, Takumi Kato, Noriaki Kawaguchi, and Takayuki Yanagida, Vacuum UV- and Radiation-induced Luminescence Properties of Sr3Y(PO4)3 Synthesized by Optical Floating Zone Technique, Sens. Mater., Vol. 37, No. 2, 2025, p. 557-562. |