期刊
RADIATION PHYSICS AND CHEMISTRY
卷 206, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.radphyschem.2023.110811
关键词
Triple component; Lead glasses; Molar volume; Oxygen packing density; Optical absorption; Half -value layer
The present work aims to study the radiation shielding properties of lead boro-tellurite glasses modified with different cations (Na, Li, Mg) and anions (oxygen, fluorine). The glasses were synthesized using the melt quenching technique and their properties were characterized. The results show that the addition of modifiers changes the density, molar volume, and optical absorption spectra of the glasses. The gamma photon attenuation abilities of the glasses were evaluated and the results demonstrate that the incorporation of Mg cations as fluorides improves the radiation shielding properties of the glass system.
The present work is intended to establish the addition of the different modifier cations (Na, Li, Mg) along with different anionic combination (oxygen and fluorine) in the novel Lead boro-tellurite glass network in the point of view of radiation shielding material. The present novel lead boro-tellurite glasses have been synthesized following the melt quenching technique with three modifier elements (Na, Li, Mg) in the form of oxides as well as fluoride in the glass network. The variation in density and molar volume confirms the atomic rearrangements and FTIR spectral analysis reveals the presence of non-bridging oxygens in the prepared glasses. The optical absorption spectra confirm the changes in the bandgap due to the incorporation of modifiers into the glass network. The radiation shielding ability of the glasses were investigated by determining the transmission factor (TF) and other related parameters. The gamma photon attenuation abilities of the prepared Lead boro-tellurite glasses shows improved linear attenuation coefficient (mu), effective atomic number (Zeff) and half value layer (HVL) when the cations are incorporated in the form of fluorides. Authors found that the TF for NaO:Pr glass at a thickness of 0.6 cm increases from 0.69 at 0.3 MeV to 0.89 at 1 MeV, and 0.94 at 5 MeV. The TF results demonstrated that adding MgO instead of Na2O to the glasses reduces the number of photons that can penetrate the glass, enhancing the radiation-shielding properties of the glass system. Authors evaluated the effective atomic number (Zeff) and found that the Zeff values vary between 56.55 and 57.14 at 0.015 MeV. Also, the Zeff results confirmed that adding MgO into the glasses leads to a great increase in Zeff values. Among the prepared glasses, Mg2+ cations incorporated glass exhibits higher shielding efficacy and it may be suggested as a promising ra-diation shielding material.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据