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<p>Eu<sub>2</sub>O<sub>3</sub>-doped oxychloride tellurite glasses were fabricated, and their luminescent characteristics were investigated for glass scintillators. Luminescent peaks originating from the transition between 4f energy levels of Eu<sup>3+</sup> were observed at 577, 592, 612, 652, and 701&#xa0;nm under 530&#xa0;nm light. These luminescent peaks were also observed when irradiated with X-ray, and the maximum intensity was observed at a Eu<sub>2</sub>O<sub>3</sub> concentration of 3.0%. Furthermore, scintillation decay times of about 0.64&#xa0;ms were detected from the Eu<sub>2</sub>O<sub>3</sub>-doped oxychloride tellurite glasses. Moreover, the 3.0% Eu<sub>2</sub>O<sub>3</sub>-doped oxychloride tellurite glass exhibited the lowest afterglow level (177&#xa0;ppm) that was lower than that of a Tl-doped CsI single crystal.</p>

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Photoluminescence and scintillation properties of Eu3+-doped BaCl2–BaO–TeO2 glasses

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年1月9日

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  • Tsubasa Suzuki,
  • Shuntaro Muneta,
  • Naoki Kawano,
  • Daisuke Nakauchi,
  • Kensei Ichiba,
  • Kai Okazaki,
  • Takumi Kato,
  • Yuma Takebuchi,
  • Fumito Kagaya,
  • Kenji Shinozaki,
  • Takayuki Yanagida

摘要

Eu2O3-doped oxychloride tellurite glasses were fabricated, and their luminescent characteristics were investigated for glass scintillators. Luminescent peaks originating from the transition between 4f energy levels of Eu3+ were observed at 577, 592, 612, 652, and 701 nm under 530 nm light. These luminescent peaks were also observed when irradiated with X-ray, and the maximum intensity was observed at a Eu2O3 concentration of 3.0%. Furthermore, scintillation decay times of about 0.64 ms were detected from the Eu2O3-doped oxychloride tellurite glasses. Moreover, the 3.0% Eu2O3-doped oxychloride tellurite glass exhibited the lowest afterglow level (177 ppm) that was lower than that of a Tl-doped CsI single crystal.