This research article focuses on the significant role of Tb₂O₃ content on the optical properties and radiation shielding performance of Ga₂O₃–B₂O₃–Al₂O₃–GeO₂ glasses named as GBAGT1, GBAGT2, GBAGT3, and GBAGT4 for Tb₂O₃ of 14, 18, 22 and 25 mol%, respectively. The findings of the optical study indicate that the optical dielectric constant of the present samples increased from 1.85 to 2.06 as the Tb₂O₃ content increased from 14 to 25 mol%. The results of the radiation shielding confirm that increasing Tb³⁺-dopant content in GBAGT4 increased its specific gamma ray constant (Γ) values over all other glass samples in the whole energy region. With increasing electron energy, the mass stopping power decreased for all samples and reached the minimum 1.372 and 1.327 (MeV cm²/g) for BGAGT1, BGAGT4, respectively, at 1 MeV electron energy. For a beam of neutrons of 0.1 meV, the total cross section in GBAGT1, GBAGT2, GBAGT3, and GBAGT4 was 294.54, 312.88, 317.24 and 311.69 (cm⁻¹), respectively. The smallest MFP values of GBAGT4 glass sample in all energy regions confirm the superior shielding performance of the studied glass sample among other shielding materials namely traditional concrete and commercial polymers/glasses.

这篇研究文章重点研究了 Tb ₂ O ₃含量对 Ga ₂ O ₃ –B ₂ O ₃ –Al ₂ O ₃ –GeO ₂玻璃的光学性能和辐射屏蔽性能的重要作用，命名为 GBAGT1、GBAGT2、GBAGT3 和GBAGT4 的 Tb ₂ O _{3 分别}为14、18、22和 25 mol%。光学研究的结果表明，随着 Tb ₂ O ₃含量从 14 mol% 增加到 25 mol% ，本样品的光学介电常数从 1.85 增加到 2.06 。辐射屏蔽的结果证实增加 Tb在整个能量范围内，GBAGT4 中的³⁺掺杂剂含量增加了其比所有其他玻璃样品的伽马射线常数 (Γ) 值。随着电子能量的增加，所有样品的质量停止能力降低，在 1 MeV 电子能量下，BGAGT1、BGAGT4的质量停止能力分别达到最小值 1.372 和 1.327 (MeV cm ² /g)。对于 0.1 meV 的中子束，GBAGT1、GBAGT2、GBAGT3 和 GBAGT4 的总截面分别为294.54、312.88、317.24 和 311.69 (cm ^-1 )。GBAGT4 玻璃样品在所有能量区域的最小 MFP 值证实了所研究的玻璃样品在其他屏蔽材料（即传统混凝土和商业聚合物/玻璃）中的卓越屏蔽性能。