pp. 2195-2201
S&M2607 Research Paper of Special Issue https://doi.org/10.18494/SAM.2021.3316 Published: June 24, 2021 VUV- and X-ray-induced Properties of Lu2Si2O7, Y2Si2O7, and Gd2Si2O7 Single Crystals [PDF] Prom Kantuptim, Hiroyuki Fukushima, Hiromi Kimura, Daisuke Nakauchi, Takumi Kato, Masanori Koshimizu, Noriaki Kawaguchi, and Takayuki Yanagida (Received January 29, 2021; Accepted March 30, 2021) Keywords: lutetium pyrosilicate, yttrium pyrosilicate, gadolinium pyrosilicate, vacuum ultraviolet, photoluminescence
Undoped Lu2Si2O7 (LPS), Y2Si2O7 (YPS), and Gd2Si2O7 (GPS) single crystals are prepared by the floating-zone (FZ) method. The X-ray diffraction (XRD) patterns show the single phase of each material without any impurity phases. The luminescence properties of the samples are investigated under both vacuum ultraviolet (VUV) and X-ray excitation. When the samples are excited by VUV photons, intrinsic emission bands at 350–500, 320–480, and 310 nm are observed for LPS, YPS, and GPS, respectively. The X-ray-induced scintillation spectra have a similar spectral shape to those under excitation by VUV photons. The X-ray induced scintillation decay times of LPS and YPS are 48 and 13 μs, respectively. For GPS, two scintillation decay constants of 169 μs and 1 ms are observed.
Corresponding author: Prom KantuptimThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Prom Kantuptim, Hiroyuki Fukushima, Hiromi Kimura, Daisuke Nakauchi, Takumi Kato, Masanori Koshimizu, Noriaki Kawaguchi, and Takayuki Yanagida, VUV- and X-ray-induced Properties of Lu2Si2O7, Y2Si2O7, and Gd2Si2O7 Single Crystals, Sens. Mater., Vol. 33, No. 6, 2021, p. 2195-2201. |