The systematic investigation of the impact of BiO on the structural, spectroscopic, and radiation features of 15SiO - 75BO - () MgO - BiO, = () glasses were studied. The increase in glass density as BiO content increase is due to the incorporation of BiO into the glass network. XRD patterns indicate an amorphous, glassy nature of the glasses. The optical absorption spectra suggest that as the content of BiO increases, the optical band gap (E) widens and the Urbach energy (E) decreases. It has been observed that the opposite trend between the (E) and (E). The radiation shielding characteristics of MgBi glasses have been evaluated through the assessment of several fundamental radiation attenuation variables. As BiO content increases would enhance properties like (HVL), (MFP), and (Zeq), especially at lower energy ranges. Adding BiO to the glassy system has a positive impact on enhancing its neutron attenuation ability. The MgBi-10 glass has the best shielding performance against fast neutrons. The MgBi-10 glass sample shows promising properties for optical and radiation shielding purposes.

中文翻译：

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Bi2O3–B2O3–SiO2–MgO 玻璃的合成和表征：结构、光学和屏蔽性能

系统研究了Bi2O对15SiO - 75BO - () MgO - BiO, = ()玻璃结构、光谱和辐射特性的影响。玻璃密度随着 Bi2O 含量的增加而增加，这是由于 Bi2O 并入玻璃网络。 XRD 图案表明玻璃具有无定形、玻璃状性质。光学吸收光谱表明，随着 Bi2O 含量的增加，光学带隙（E）变宽，乌尔巴赫能量（E）降低。据观察，(E)和(E)之间的趋势相反。通过评估几个基本辐射衰减变量，评估了 MgBi 玻璃的辐射屏蔽特性。随着 Bi2O 含量的增加，将增强 (HVL)、(MFP) 和 (Zeq) 等特性，尤其是在较低能量范围内。在玻璃体系中添加Bi2O对于增强其中子衰减能力具有积极的影响。 MgBi-10玻璃对快中子具有最好的屏蔽性能。 MgBi-10 玻璃样品在光学和辐射屏蔽方面表现出良好的性能。