基于MCNP模拟的二硼化铪-环氧复合材料的辐射屏蔽效果

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

Radiation Physics and Chemistry Pub Date : 2025-08-29 DOI:10.1016/j.radphyschem.2025.113277

Randolph Snook, Furkan Erdogan, Jessika Rojas, Braden Goddard

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引用次数: 0

摘要

采用蒙特卡罗n粒子（Monte Carlo N-Particle， MCNP）模拟方法对二硼化铪（HfB2）增强环氧复合材料的辐射屏蔽性能进行了评价。分析了不同HfB2重量百分比和厚度的复合材料，以评估其抗伽马和中子辐射的有效性。模型验证使用152Eu伽马源和241AmBe中子源进行，与先前发表的实验数据非常吻合，伽马测量精度在3%以内，中子测量精度在14%以内。并将HfB2环氧复合材料的屏蔽性能与铅、纯环氧和硼化高密度聚乙烯等常规材料进行了比较。进一步使用伽马/中子源（特别是241AmLi和238PuO2）进行模拟，证实了复合材料的双重屏蔽能力。结果表明，HfB2环氧复合材料具有与商用屏蔽材料相当的有效衰减性能，同时为双辐射环境提供了平衡、无毒的解决方案。

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Radiation shielding effectiveness of hafnium diboride-epoxy composites using MCNP simulation

This study evaluates the radiation shielding performance of hafnium diboride (HfB₂) reinforced epoxy composites using Monte Carlo N-Particle (MCNP) simulations. Composites with varying HfB₂ weight percentages and thicknesses were analyzed to assess their effectiveness against both gamma and neutron radiation. Model validation was performed using a ¹⁵²Eu gamma source and a ²⁴¹AmBe neutron source, showing strong agreement with previously published experimental data, within 3 % accuracy for gamma and 14 % for neutron measurements. The shielding performance of the HfB₂ epoxy composites was also compared to conventional materials, including lead, pure epoxy and borated high-density polyethylene. Further simulations using combined gamma/neutron sources, specifically ²⁴¹AmLi and ²³⁸PuO₂, confirmed the dual shielding capability of the composites. Results indicate that HfB₂ epoxy composites offer effective attenuation, performing comparably to commercial shielding materials while providing a balanced, non-toxic solution for dual-radiation environments.

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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.