辉石晶体屏蔽伽马射线的结构和拓扑研究

IF 2.6 3区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Nuclear Engineering and Technology Pub Date : 2025-08-20 DOI:10.1016/j.net.2025.103853

I. Alhagaish, M. Alobeid, Z.Y. Khattari

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引用次数: 0

摘要

本文探讨了不同辉石晶体(XY(Si,Al)2O6；X, Y =阳离子)，重点是斜辉石和正辉石。使用结构和成分数据评估屏蔽参数，包括MAC、LAC和Zeff。斜辉石，如hedenberite（密度= 3.56 g/cm3, MAC = 1.002 cm2/g, Zeff = 20.62）和Aegirine（密度= 3.55 g/cm3, MAC = 1.107 cm2/g, Zeff = 21.66），表现出卓越的屏蔽能力，特别是在低光子能量下。硅铁石（Ferrosilite）（密度= 3.25 g/cm3, MAC = 0.999 cm2/g, Zeff = 20.72）和超硅铁石（Hypersthene）（密度= 3.50 g/cm3, MAC = 0.699 cm2/g, Zeff = 17.67）等正辉石在特定情况下具有竞争力。该研究强调了密度、原子堆积和阴离子-阳离子半径比（RAC = 0.429−1.143）在确定辐射衰减中的关键作用。Hirshfeld表面分析显示，结构致密性进一步增强了γ射线屏蔽性能。这些发现强调了辉石作为高能环境的高级屏蔽材料的潜力，并在光学和电子领域得到了应用。

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Structural and topological insights into gamma-ray shielding of pyroxene crystals

This work explores the gamma-ray shielding properties of different pyroxene crystals (XY(Si,Al)2O6; X, Y = cations), focusing on clinopyroxenes and orthopyroxenes. The shielding parameters, including the MAC, LAC, and Z_eff, were evaluated using structural and compositional data. Clinopyroxenes, such as Hedenbergite (density = 3.56 g/cm³, MAC = 1.002 cm²/g, Z_eff = 20.62) and Aegirine (density = 3.55 g/cm³, MAC = 1.107 cm²/g, Z_eff = 21.66), exhibit superior shielding capabilities, particularly at low photon energies. Orthopyroxenes, such as Ferrosilite (density = 3.25 g/cm³, MAC = 0.999 cm²/g, Z_eff = 20.72) and Hypersthene (density = 3.50 g/cm³, MAC = 0.699 cm²/g, Z_eff = 17.67), offer competitive performance in specific scenarios. The study highlights the critical role of density, atomic packing, and anion-cation radii ratios (R_AC = 0.429−1.143) in determining radiation attenuation. Structural compactness, as revealed by Hirshfeld surface analysis, further enhances γ-ray shielding properties. These findings underscore the potential of pyroxenes as advanced shielding materials for high-energy environments, with applications in optical and electronic fields.

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来源期刊

Nuclear Engineering and Technology 工程技术-核科学技术

CiteScore

4.80

自引率

7.40%

发文量

431

审稿时长

3.5 months

期刊介绍： Nuclear Engineering and Technology (NET), an international journal of the Korean Nuclear Society (KNS), publishes peer-reviewed papers on original research, ideas and developments in all areas of the field of nuclear science and technology. NET bimonthly publishes original articles, reviews, and technical notes. The journal is listed in the Science Citation Index Expanded (SCIE) of Thomson Reuters. NET covers all fields for peaceful utilization of nuclear energy and radiation as follows: 1) Reactor Physics 2) Thermal Hydraulics 3) Nuclear Safety 4) Nuclear I&C 5) Nuclear Physics, Fusion, and Laser Technology 6) Nuclear Fuel Cycle and Radioactive Waste Management 7) Nuclear Fuel and Reactor Materials 8) Radiation Application 9) Radiation Protection 10) Nuclear Structural Analysis and Plant Management & Maintenance 11) Nuclear Policy, Economics, and Human Resource Development