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<p>The incorporation of Rare-earth oxides like Ytterbium oxide (Yb<sub>2</sub>O<sub>3</sub>) into the borate glass matrix enhances the radiation shielding capability of the borate glass system. In this study, Ytterbium oxide-doped borate glasses were synthesised by the melt-quench technique. The molar volume, mass attenuation coefficient (MAC), linear attenuation coefficient (LAC), half-value layer (HVL), effective atomic number (Z<sub>eff</sub>), mean free path (MFP), and neutron removal cross section Σ<sub>R</sub> of the prepared glass samples were also systematically and computationally evaluated using the Phy-X/PSD program. The results show that the Yb<sub>2</sub>O<sub>3</sub>-doped borate glass (BLSK-1.5Yb) has the highest gamma radiation shielding ability with MAC values of 31.4145 cm<sup>2</sup>/g and 0.0292 cm<sup>2</sup>/g at 0.015 MeV and 15 MeV, respectively, indicating competitive performance at lower energies with other materials in the literature. However, the undoped glass sample BLSK-0Yb exhibited the highest Σ<sub>R</sub> value of 0.102 cm⁻<sup>1</sup>, indicating a greater tendency to scatter or absorb both thermal and fast neutrons compared to the other tested glass samples. Therefore, a dual-layer composed of BLSK-0Yb and BLSK-1.5Yb is recommended for special radiation shielding applications where combined gamma rays and neutron shielding are crucial.</p>

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Exploring the Role of Yb2O3 on the Physical and Radiation Shielding Properties of the Borate Glass System Containing Eu2O3 and Tb2O3

  • 期刊论文

  • 发表日期：

    2026年3月16日

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  • E. O. Echeweozo,
  • B. Alshahrani,
  • Alaa Hammoud,
  • Norah Salem Alsaiari,
  • M. S. Al-Buriahi

摘要

The incorporation of Rare-earth oxides like Ytterbium oxide (Yb2O3) into the borate glass matrix enhances the radiation shielding capability of the borate glass system. In this study, Ytterbium oxide-doped borate glasses were synthesised by the melt-quench technique. The molar volume, mass attenuation coefficient (MAC), linear attenuation coefficient (LAC), half-value layer (HVL), effective atomic number (Zeff), mean free path (MFP), and neutron removal cross section ΣR of the prepared glass samples were also systematically and computationally evaluated using the Phy-X/PSD program. The results show that the Yb2O3-doped borate glass (BLSK-1.5Yb) has the highest gamma radiation shielding ability with MAC values of 31.4145 cm2/g and 0.0292 cm2/g at 0.015 MeV and 15 MeV, respectively, indicating competitive performance at lower energies with other materials in the literature. However, the undoped glass sample BLSK-0Yb exhibited the highest ΣR value of 0.102 cm⁻1, indicating a greater tendency to scatter or absorb both thermal and fast neutrons compared to the other tested glass samples. Therefore, a dual-layer composed of BLSK-0Yb and BLSK-1.5Yb is recommended for special radiation shielding applications where combined gamma rays and neutron shielding are crucial.