pp. 451-456
S&M3531 Research Paper of Special Issue https://doi.org/10.18494/SAM4752 Published: February 20, 2024 Luminescence Properties of La2Be2O5 Single Crystal Scintillator [PDF] Kensei Ichiba, Takumi Kato, Daisuke Nakauchi, Noriaki Kawaguchi, and Takayuki Yanagida (Received October 30, 2023; Accepted January 9, 2024) Keywords: radiation detector, scintillator, La2Be2O5, single crystal
We synthesized an undoped La2Be2O5 single crystal by the floating zone method and investigated its scintillation properties. The synthesized sample was confirmed to have a single-phase structure of La2Be2O5 as shown by the powder X-ray diffraction pattern. The diffuse transmittance spectrum of the synthesized sample had transmittance at 80% in the range of 250–850 nm. The scintillation spectrum had a broad emission band from 280 to 600 nm, which was derived from unidentified lattice defects. In the scintillation decay profile, the obtained decay time constants were 1.1, 6.2, and 386 ns. From pulse height spectra, the light yield of the La2Be2O5 single crystal was 1000 photons/MeV. In afterglow profiles, the afterglow level was 42.9 ppm.
Corresponding author: Kensei IchibaThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Kensei Ichiba, Takumi Kato, Daisuke Nakauchi, Noriaki Kawaguchi, and Takayuki Yanagida, Luminescence Properties of La2Be2O5 Single Crystal Scintillator, Sens. Mater., Vol. 36, No. 2, 2024, p. 451-456. |