Assessment of various polymer materials for enhanced radiation protection in X-ray imaging modalities: A comprehensive Monte Carlo simulation study

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

Radiation Physics and Chemistry Pub Date : 2025-04-08 DOI:10.1016/j.radphyschem.2025.112806

Sofiene Mansouri

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引用次数: 0

Abstract

Radiation protection is essential in X-ray imaging modalities to mitigate the potential health risks associated with exposure to ionizing radiation. This study, for the first time, focuses on evaluating the effects of 28 different pragmatic polymers used in polymer-based nanocomposites for radiation shielding in X-ray imaging. Using a Monte Carlo (MC) simulation-based approach, the shielding performance was assessed through key parameters such as the linear attenuation coefficient (μ), mass attenuation coefficient (μm), half-value layer (HVL), tenth-value layer (TVL), mean free path (MFP), and effective atomic number (Z_eff), across photon energies ranging from 80 keV to 120 keV. Specifically, the study aims to evaluate the X-ray shielding properties of 28 different polymers using the Geant4 MC code. Among the polymers analyzed, PVDC demonstrated superior X-ray attenuation characteristics at 60, 80, 100, and 120 kVp. In terms of performance comparison, the polymers can be ranked as follows: PVDC > CPVC > PTFCE > PVC for μ, and PVDC > CPVC > PVC > PTFCE for μ_m. Notably, the polymers NR and PPy exhibited lower μ and μm values relative to the other polymers analyzed. Notably, the polymers NR and PPy exhibited the lowest μ and μm values among those studied. Furthermore, unlike the trends observed for μ and μm, the MFP, HVL, and TVL values for all polymers increased with rising incident photon energy.

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各种聚合物材料在x射线成像模式中增强辐射防护的评估：一项全面的蒙特卡罗模拟研究

辐射防护在x射线成像方式中至关重要，以减轻与暴露于电离辐射有关的潜在健康风险。本研究首次着重评估了28种不同的实用聚合物用于聚合物基纳米复合材料在x射线成像中的辐射屏蔽效果。采用蒙特卡罗（MC）模拟方法，在80 ~ 120 keV的光子能量范围内，通过线性衰减系数（μ）、质量衰减系数（μm）、半值层（HVL）、十值层（TVL）、平均自由程（MFP）和有效原子序数（Zeff）等关键参数对屏蔽性能进行了评价。具体来说，该研究旨在使用Geant4 MC代码评估28种不同聚合物的x射线屏蔽性能。在所分析的聚合物中，PVDC在60、80、100和120 kVp下表现出优越的x射线衰减特性。在性能比较方面，聚合物可按以下顺序排列：PVDC >；CPVC祝辞PTFCE祝辞PVC为μ， PVDC为>；CPVC祝辞PVC祝辞PTFCE为μm。值得注意的是，聚合物NR和PPy的μ和μm值较低。其中，NR和PPy的μ和μm值最低。此外，与μ和μm不同的是，所有聚合物的MFP、HVL和TVL值都随着入射光子能量的增加而增加。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.