作为屏蔽材料的PSZB玻璃：评估物理、机械和伽马射线屏蔽性能

IF 2.9 Q1 MATERIALS SCIENCE, CERAMICS

Open Ceramics Pub Date : 2024-12-20 DOI:10.1016/j.oceram.2024.100729

M.I. Sayyed , Chaitali V. More , Ashok Kumar , Yasser Maghrbi

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引用次数: 0

摘要

采用熔融淬火法制备了PbO-SrO-ZnO-B2O3 （PSZB）玻璃。在玻璃基体中引入较大尺寸的PbO导致结构改变，密度和摩尔体积值分别从4.292 g/cm3和29.812 cm3 mol - 1边际升高到4.922 g/cm3和30.676 cm3 mol - 1。网络的扩展有助于氧摩尔体积（Vo）从15.691增加到19.173 cm3 mol−1。利用Phy-X软件对0.015-15 MeV能量范围内的屏蔽特性进行了理论计算。测试了质量衰减系数（MAC）、半值层（HVL）和平均自由程（MFP）对光子能量的影响。辐射屏蔽能力随PbO含量的增加而增加。并在0.1和0.15 MeV下与不同碲酸盐玻璃的HVL进行了比较。PbO含量较高（50 mol%）的PSZB4玻璃具有较好的屏蔽γ辐射性能。

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PSZB glass as a shielding material: Evaluating physical, mechanical, and gamma ray shielding performance

The PbO-SrO-ZnO-B₂O₃ (PSZB) glasses were synthesized through the melt-quenching. The introduction of larger-sized PbO into the glass matrix led to structural alterations, elucidated by a marginal elevation in density and molar volume values from 4.292 g/cm³ to 4.922 g/cm³ and 29.812 cm³ mol⁻¹ to 30.676 cm³ mol⁻¹ respectively. The expansion of the network was found to contribute to the rise in oxygen molar volume (V_o) from 15.691 to 19.173 cm³ mol⁻¹. Phy-X software was used to compute the shielding characteristics theoretically in the energy range of 0.015–15 MeV. The mass attenuation coefficients (MAC), half value layer (HVL) and mean free path (MFP) have been tested against photon energy. The radiation shielding capabilities increased with increasing PbO content. The present glasses' HVL are compared to that of different tellurite glasses at 0.1 and 0.15 MeV. PSZB4 glass with greater PbO content (50 mol%) has shown outstanding gamma radiation shielding properties than its counterparts.

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