Abstract
Novel glass samples with the composition 75TeO2–5Ta2O5–15Nb2O5–5x (where x = ZnO, MgO, TiO2, or Na2O) in mole percent were prepared. The physical, optical, and gamma radiation shielding properties of the glass samples were studied over a wide energy spectrum ranging between 0.015 and 20 MeV. The glasses’ UV–vis spectra were utilized to evaluate the optical energy gap and refractive index. Glass samples had a refractive index ranging from 2.2005 to 2.0967. The results showed that the sample doped with zinc oxide (ZnO) recorded the highest density (ρglass), molar polarizability (αm), molar refraction (Rm), refractive index (n), and third-order nonlinear optical susceptibility (χ3) and the lowest optical energy gap (Eopt) among the samples under investigation. When comparing the current glass system with various standard glass shielding materials, the prepared glass system showed superior shielding performance at energies ranging between 40 and 85 keV. These findings indicate that the prepared glass systems can be used in diagnostic X-rays, especially in dental applications.
Highlights
The physical, optical, and radiation shielding characteristics of a prepared the host glass 75TeO2–5Ta2O5–15Nb2O5 (TeTaNb) glass system doped with several modifiers (ZnO, MgO, TiO2, and Na2 O) were investigated at energy levels ranging between 0.015 and 15 MeV
Incorporating zinc oxide (ZnO) into TeTaNb tellurite glasses increases the density due to the change in glass structure caused by the Zn+2 in breaking the Te–O network
The structure and properties of a TeTaNb glass system doped with the modifiers
Summary
Due to the dramatic increase in the use of radiation in medical and industrial applications, radiation shielding issues have become an important topic among researchers [1–6]. Several computational models have been developed over the last several years to estimate radiation shielding parameters in order to study the radiation shielding effectiveness of different kinds of materials. Gerward et al (2004) [7] developed the program WinXcom for the Windows system for the estimation of the mass attenuation coefficient (MAC) of elements, compounds, and mixtures. The calculated MAC values are based on the reported data for the mass attenuation coefficient (MAC) provided by Hubbell and Seltzer (1995) [8]
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