Boro-tellurite glasses in the (70-x) B2O3–5TeO2–10Bi2O3–10SrCO3–5K2CO3-xWO3 system, with varying WO3 content (x = 0, 1, 2, 3, 4 and 5 mol %), were synthesized using the melt quenching technique. The effectiveness of radiation protection was assessed using the Phy-X/PSD tool across a broad energy spectrum ranging from 15 keV to 15 MeV. The results indicated that the mass attenuation coefficient (MAC) values increased proportionally with the concentration of WO₃ in the glass samples. At approximately 0.015 MeV, the MAC reached its maximum for all glass compositions, ranging from 45.822 g cm−2 for BW1 to 51.258 g cm−2 for BW5. However, beyond 15 keV, a notable decrease in MAC values was observed, primarily attributed to the dominance of photoelectric interactions at lower energy levels. Furthermore, the effective atomic number (Zeff) ranged from 64.08 to 65.44, with a peak observed at 15 keV. Beyond this energy, the Zeff values for all the produced glass samples showed a marked decrease as the energy of gamma photons increased, mirroring the trend observed in the MAC values. Conversely, the half-value layer (HVL) and mean free path (MFP) exhibited a consistent reduction. A comparative analysis of the MFP of the glass samples with other shielding materials demonstrated that the BW5 glass exhibited superior performance at 1.50 MeV. These findings highlight the potential of the BW5 glass sample for radiation shielding applications, which has the highest WO₃ content and density, positioning it as a promising material for future radiation protection technologies.

中文翻译：

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增强钨改性硼亚碲酸钾玻璃系统的物理、光学和辐射屏蔽性能：理论方法


采用熔融淬火技术合成了 （70-x） B2O3–5TeO2–10Bi2O3–10SrCO3–5K2CO3-xWO3 系统中的硼亚碲酸盐玻璃，具有不同的 WO3 含量（x = 0、1、2、3、4 和 5 mol%）。使用 Phy-X/PSD 工具在 15 keV 至 15 MeV 的广泛能量范围内评估辐射防护的有效性。结果表明，玻璃样品中质量衰减系数 （MAC） 值与 WO₃ 浓度成正比增加。在大约 0.015 MeV 时，MAC 达到所有玻璃成分的最大值，范围从 BW1 的 45.822 g cm-2 到 BW5 的 51.258 g cm-2。然而，超过 15 keV 时，观察到 MAC 值显着下降，这主要是由于光电相互作用在较低能级下占主导地位。此外，有效原子序数 （Zeff） 范围为 64.08 至 65.44，在 15 keV 处观察到峰值。除了这个能量之外，所有产生的玻璃样品的 Zeff 值都显示出随着伽马光子能量的增加而显着降低，这反映了在 MAC 值中观察到的趋势。相反，半值层 （HVL） 和平均自由程 （MFP） 表现出一致的减少。玻璃样品与其他屏蔽材料的 MFP 的比较分析表明，BW5 玻璃在 1.50 MeV 时表现出优异的性能。这些发现突出了 BW5 玻璃样品在辐射屏蔽应用中的潜力，它具有最高的 WO₃ 含量和密度，使其成为未来辐射防护技术的有前途的材料。