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<p>This research aims to investigate the structural characteristics and radiation shielding performance of a series of lead-free, tungsten-modified boro-tellurite glass systems with the composition (70-y)B<sub>2</sub>O<sub>3</sub>-5TeO<sub>2</sub>-10Bi<sub>2</sub>O<sub>3</sub>-10SrO-5K<sub>2</sub>O-yWO<sub>3</sub>, where (0.0 ≤ y ≤ 5, mol%), synthesized using conventional melt-quenching followed by annealing techniques. The photon shielding characteristics were evaluated using experimental measurements conducted with a narrow beam transmission geometry setup. XRD patterns confirmed the amorphous nature of the glasses, while EDX analysis identified their elemental composition. FTIR and Raman spectroscopy revealed functional groups and structural units, such as TeO<sub>4</sub>, BO<sub>3</sub>, and BO<sub>4</sub>. The linear attenuation coefficient (LAC) was experimentally determined and cross-validated with the Phy-X/PSD program over the energy range of 0.059–1.333&#xa0;MeV, demonstrating excellent agreement between experimental and theoretical results. The results showed that the LAC values for the BTW0, BTW1, BTW2, BTW3, BTW4, and BTW5 samples decreased with increasing photon energy, ranging from 9.943 to 0.198, 8.774 to 0.201, 9.094 to 0.205, 9.256 to 0.207, 9.330 to 0.209, and 9.529 to 0.211&#xa0;cm<sup>−1</sup>, respectively. Among them, the sample containing 5-mol% WO<sub>3</sub> (BTW1) exhibited the lowest LAC values across all energy levels, indicating superior photon shielding performance.</p>

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Experimental evaluation of tungsten-doped boro-tellurite glasses for structural and improved radiation shielding properties

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月30日

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  • Suleman M. Ngaram,
  • Suhairul Hashim,
  • Mohamad Syazwan Mohd Sanusi,
  • Ibrahim Abdullahi,
  • M. I. Sayyed

摘要

This research aims to investigate the structural characteristics and radiation shielding performance of a series of lead-free, tungsten-modified boro-tellurite glass systems with the composition (70-y)B2O3-5TeO2-10Bi2O3-10SrO-5K2O-yWO3, where (0.0 ≤ y ≤ 5, mol%), synthesized using conventional melt-quenching followed by annealing techniques. The photon shielding characteristics were evaluated using experimental measurements conducted with a narrow beam transmission geometry setup. XRD patterns confirmed the amorphous nature of the glasses, while EDX analysis identified their elemental composition. FTIR and Raman spectroscopy revealed functional groups and structural units, such as TeO4, BO3, and BO4. The linear attenuation coefficient (LAC) was experimentally determined and cross-validated with the Phy-X/PSD program over the energy range of 0.059–1.333 MeV, demonstrating excellent agreement between experimental and theoretical results. The results showed that the LAC values for the BTW0, BTW1, BTW2, BTW3, BTW4, and BTW5 samples decreased with increasing photon energy, ranging from 9.943 to 0.198, 8.774 to 0.201, 9.094 to 0.205, 9.256 to 0.207, 9.330 to 0.209, and 9.529 to 0.211 cm−1, respectively. Among them, the sample containing 5-mol% WO3 (BTW1) exhibited the lowest LAC values across all energy levels, indicating superior photon shielding performance.