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S&M2601 Research Paper of Special Issue https://doi.org/10.18494/SAM.2021.3321 Published: June 24, 2021 Evaluation of Gd2SiO5:Ce (GSO), Lu2−xGdxSiO5:Ce (LGSO), and Lu2−xYxSiO5:Ce (LYSO) Crystalline Scintillators Using a Photoacoustic Spectroscopy Technique [PDF] Yutaka Fujimoto, Daisuke Nakauchi, Takayuki Yanagida, Masanori Koshimizu, and Keisuke Asai (Received January 31, 2021; Accepted May 25, 2021) Keywords: photoacoustic spectroscopy, thermal deactivation, scintillator
We evaluated the nonradiative deactivation in three scintillators, Gd2SiO5:Ce (GSO), Lu2−xGdxSiO5:Ce (LGSO), and Lu2−xYxSiO5:Ce (LYSO), using a photoacoustic spectroscopy technique (PAS). The photoacoustic (PA) spectra suggested that part of the absorption energy for the excitation of Ce3+ will be released as heat through a nonradiative deactivation process. GSO exhibits an intense PA signal compared with LGSO and LYSO because of its energy migration process from Gd3+ to Ce3+ emission centers.
Corresponding author: Yutaka FujimotoThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Yutaka Fujimoto, Daisuke Nakauchi, Takayuki Yanagida, Masanori Koshimizu, and Keisuke Asai, Evaluation of Gd2SiO5:Ce (GSO), Lu2−xGdxSiO5:Ce (LGSO), and Lu2−xYxSiO5:Ce (LYSO) Crystalline Scintillators Using a Photoacoustic Spectroscopy Technique, Sens. Mater., Vol. 33, No. 6, 2021, p. 2147-2153. |