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<p>In this study, melt quenching technique has been used to fabricate novel cost-effective radiation-shielding glasses. The formulated glasses possess a general composition of (72.25-x)B<sub>2</sub>O<sub>3</sub>-5MgO-5CaO-11ZnO-6.75SrO-xCeO<sub>2</sub>, (x = 0.25, 0.5, 0.75 and 1&#xa0;mol%). The incorporation of CeO<sub>2</sub> into the borate glass matrix significantly reduced the optical band gap, with the direct and indirect band gaps decreasing from 3.103 to 2.760&#xa0;eV and from 2.697 to 2.281&#xa0;eV, respectively. The gamma-radiation shielding properties of these glasses were theoretically assessed utilizing Phy-X/PSD program, demonstrating that the inclusion of CeO<sub>2</sub> positively influenced the density of the glasses. Furthermore, the inclusion of CeO<sub>2</sub> improved the attenuation efficacy of the produced glasses in the energy range 0.015-15&#xa0;MeV. The half-value layer and mean free path values increase with increasing photon energy and decrease with increasing CeO<sub>2</sub> concentration.</p>

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CeO2-modified borate glasses: optical characteristics and gamma radiation shielding performance

  • 期刊论文

  • 发表日期：

    2026年6月1日

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  • Mohamed I. Sayyed,
  • Shams A. M. Issa,
  • Ahmed A. Ahmed,
  • Saman Q. Mawlud

摘要

In this study, melt quenching technique has been used to fabricate novel cost-effective radiation-shielding glasses. The formulated glasses possess a general composition of (72.25-x)B2O3-5MgO-5CaO-11ZnO-6.75SrO-xCeO2, (x = 0.25, 0.5, 0.75 and 1 mol%). The incorporation of CeO2 into the borate glass matrix significantly reduced the optical band gap, with the direct and indirect band gaps decreasing from 3.103 to 2.760 eV and from 2.697 to 2.281 eV, respectively. The gamma-radiation shielding properties of these glasses were theoretically assessed utilizing Phy-X/PSD program, demonstrating that the inclusion of CeO2 positively influenced the density of the glasses. Furthermore, the inclusion of CeO2 improved the attenuation efficacy of the produced glasses in the energy range 0.015-15 MeV. The half-value layer and mean free path values increase with increasing photon energy and decrease with increasing CeO2 concentration.