Alqahtani Mohammed S, Hussein Khalid I, Afifi Hesham, Reben Manuela, Grelowska Iwona, Zahran Heba Y, Yahia I S, Yousef El Sayed
Department of Radiological Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia.
BioImaging Unit, Space Research Centre, Department of Physics and Astronomy, University of Leicester, Leicester, UK.
J Xray Sci Technol. 2022;30(2):293-305. doi: 10.3233/XST-211017.
Shielding glass materials doped with heavy metal oxides show an improvement in the effectiveness of the materials used in radiation shielding. In this work, the photon shielding parameters of six tellurite glass systems doped with several metal oxides namely, 70TeO2-10P2O5- 10ZnO- 5.0PbF2- 0.0024Er2O3- 5.0X (where X represents different doped metail oxides namely, Nb2O5, TiO2, WO3, PbO, Bi2O3, and CdO) in a broad energy spectrum, ranging from 0.015 MeV to 15 MeV, were evaluated. The shielding parameters were calculated using the online software Phy-X/PSD. The highest linear and mass attenuation coefficients recorded were obtaibed from the samples containing bismuth oxide (Bi2O3), and the lowest half-value layer and mean free path were recorded among the other samples. Furthermore, the shielding effectiveness of tellurite glass systems was compared with commercial shielding materials (RS-369, RS-253 G18, chromite, ferrite, magnetite, and barite). The optical parameters viz, dispersion energy, single-oscillator energy, molar refraction, electronic polarizability, non-linear refractive indices, n2, and third-order susceptibility were measured and reported at a different wavelength. Bi2O3 has a strong effect on enhancing the optical and shielding properties. The outcome of this study suggests the potential of using the proposed glass samples as radiation-shielding materials for a broad range of imaging and therapeutic applications.
掺杂重金属氧化物的屏蔽玻璃材料在辐射屏蔽材料的有效性方面有了提高。在这项工作中，评估了六种掺杂几种金属氧化物的碲酸盐玻璃系统的光子屏蔽参数，即70TeO2-10P2O5-10ZnO-5.0PbF2-0.0024Er2O3-5.0X（其中X代表不同的掺杂金属氧化物，即Nb2O5、TiO2、WO3、PbO、Bi2O3和CdO），其能量范围从0.015兆电子伏到15兆电子伏。屏蔽参数使用在线软件Phy-X/PSD进行计算。记录到的最高线性和质量衰减系数来自含氧化铋（Bi2O3）的样品，在其他样品中记录到最低的半价层和平均自由程。此外，还将碲酸盐玻璃系统的屏蔽效果与商业屏蔽材料（RS-369、RS-253 G18、铬铁矿、铁氧体、磁铁矿和重晶石）进行了比较。在不同波长下测量并报告了光学参数，即色散能量、单振子能量、摩尔折射、电子极化率、非线性折射率n2和三阶磁化率。Bi2O3对增强光学和屏蔽性能有很强的作用。这项研究的结果表明，所提出的玻璃样品有潜力用作广泛的成像和治疗应用的辐射屏蔽材料。
