Optical, structural, and gamma radiation shielding properties of lead borate glasses containing a small fraction of crystalline phase

IF 2.8 3区物理与天体物理 Q3 CHEMISTRY, PHYSICAL

Radiation Physics and Chemistry Pub Date : 2025-03-20 DOI:10.1016/j.radphyschem.2025.112712

Ahmad Marzuki , Risa Suryana , Nani Syamsyiah , Devara Ega Fausta , Idris Kabalci , Mukhayyarotin Niswati Rodliyatul Jauhariyah

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引用次数: 0

Abstract

Lead borate glasses with compositions of 80PbO-(20-x)B₂O₃-xTeO₂, where 0 ≤ x ≤ 5 mol% (denoted as PBT0, PBT1, PBT2, PBT3, PBT4, and PBT5), were synthesised using the melt-quenching method. This study investigates the influence of TeO₂ addition on the optical, structural, and gamma shielding properties of these glasses. The presence of a minor crystalline phase was qualitatively examined using X-ray diffraction (XRD) and scanning electron microscopy (SEM). Optical properties were analysed based on variations in refractive index, transmittance, and band gap energy, while changes in structural units were explored using Raman spectroscopy. Gamma shielding performance was evaluated both experimentally and theoretically using the Phy-X/PSD and WINXCOM software. The primary objective was to assess the effect of partially substituting B₂O₃ with TeO₂ and to determine how the formation of a minor crystalline phase influences the linear attenuation coefficient (LAC), half-value layer (HVL), mean free path (MFP), and exposure buildup factor (EBF). The results indicate that all glasses, except for PBT5, exhibit good transparency. Increasing the TeO₂ content enhanced the refractive index from 1.66 to 2.08 and increased the density from 6.47 to 7.47 g/cm³. The high LAC values and low HVL, MFP, and EBF values across various gamma photon energies confirm the excellent shielding capability of these glasses. For instance, at a gamma photon energy of 0.661 MeV, the LAC values for PBT0, PBT1, PBT2, PBT3, PBT4, and PBT5 are 0.6899, 0.7124, 0.7581, 0.7626, 0.7577, and 0.7901 cm⁻¹, respectively, while their corresponding HVL values range from 1.01 cm (PBT0) to 0.88 cm (PBT5). These values are comparable to those of lead, a conventional gamma shielding material. Overall, these findings suggest that the investigated lead borate glasses have strong potential as alternative transparent materials for gamma radiation shielding applications.

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来源期刊

Radiation Physics and Chemistry 化学-核科学技术

CiteScore

5.60

自引率

17.20%

发文量

574

审稿时长

12 weeks

期刊介绍： Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.