Lead silicate glasses are used to absorb electromagnetic waves. This work investigates the radiation shielding properties of a xSiO.(1-x)PbO glass system containing 5 and 10 mol% of CaO and BO. Analyses for characterization include XRD, SEM, EDAX, DRS (UV–Vis), and density analyses. Here, DRS (UV–Vis) analysis is used to investigate the absorption value in the range of 200–900 nm, and XCOM software is used to investigate the γ-ray wavelength. UV–Vis analysis specifies that the absorption value in the UV-ray wavelength increases by increasing the contents of CaO and BO, while the XCOM software shows that the absorption value in the γ-ray wavelength decreases with the addition of CaO and BO. It seems that the effect of different oxides on the properties of lead silicate glasses is complex and depends on the position of the elements. The results show that glass transparency decreases with the addition of CaO and BO. The mechanism of the addition of CaO and BO is discussed and compared with the results of other dopants such as ZnO and BaO in this glass. In this research, for the first time, the “inner-atomic” and “outer-atomic” perspectives are presented and discussed to justify the obtained results.

中文翻译：

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CaO 和 B2O3 掺杂硅酸盐玻璃的制备和表征


硅酸铅玻璃用于吸收电磁波。这项工作研究了含有 5 mol% 和 10 mol% CaO 和 BO 的 xSiO.(1-x)PbO 玻璃系统的辐射屏蔽性能。表征分析包括 XRD、SEM、EDAX、DRS（紫外-可见）和密度分析。这里，使用DRS（UV-Vis）分析来研究200-900 nm范围内的吸收值，并使用XCOM软件来研究γ射线波长。 UV-Vis分析表明，随着CaO和BO含量的增加，紫外波长的吸收值增加，而XCOM软件显示，随着CaO和BO的添加，γ射线波长的吸收值降低。看来不同氧化物对硅酸铅玻璃性能的影响是复杂的并且取决于元素的位置。结果表明，玻璃透明度随着CaO和BO的添加而降低。讨论了 CaO 和 BO 的添加机理，并与该玻璃中其他掺杂剂（如 ZnO 和 BaO）的结果进行了比较。在这项研究中，首次提出并讨论了“内部原子”和“外部原子”的观点来证明所获得的结果。