The assessment of usage of epoxy based micro and nano-structured composites enriched with Bi2O3 and WO3 particles for radiation shielding

IF 4.6 2区物理与天体物理 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Results in Physics Pub Date : 2021-07-01 DOI:10.1016/j.rinp.2021.104423

Yaşar Karabul, Orhan İçelli

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引用次数: 48

Abstract

This study has been devoted to investigate the radiation shielding performance of epoxy-based micro and nano Bi₂O₃ and WO₃ reinforced composites. While the research has been carried out by using experimental data and MCNP6 simulation for the micro-structured composites; the effect of nano Bi₂O₃ and WO₃ particles addition on the radiation shielding property of epoxy has been discussed by using experimental data. While the gamma-ray spectroscopy experiments have been carried by using NaI(Tl) scintillation detector and Ba-133, Cs-137, and Co-60 sources, the MCNP version 6.2 code has been utilized for the simulation. The experimental and MCNP6 simulation results showed good consistency for both particle reinforcement and different incoming photon energies. Particle size effect investigation also indicated that for both kinds of dopant particles, the nano dopant is more successful in attenuating the intensity of incoming photons than the micro dopant even if they are used in the same percentages. In conclusion, it can be suggested that the micro and nano-structured composites having the highest Bi₂O₃ and WO₃ contents have a considerable potential to shield the harmful effects of some of the diagnostic radionuclides utilized in nuclear medicine as well as the radiation imaging machines such as roentgen, mammography or PET scans.

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富含Bi2O3和WO3颗粒的环氧基微纳复合材料在辐射屏蔽中的应用评价

研究了环氧基微纳米Bi2O3和WO3增强复合材料的辐射屏蔽性能。同时利用实验数据和MCNP6模拟对微结构复合材料进行了研究;用实验数据探讨了纳米Bi2O3和WO3粒子的加入对环氧树脂辐射屏蔽性能的影响。伽玛能谱实验使用NaI(Tl)闪烁探测器和Ba-133、Cs-137和Co-60源进行，模拟使用MCNP 6.2版代码。实验和MCNP6模拟结果表明，粒子增强和不同入射光子能量具有良好的一致性。粒径效应的研究也表明，对于两种掺杂颗粒，纳米掺杂比微掺杂更成功地衰减入射光子的强度，即使它们的使用百分比相同。综上所述，具有最高Bi2O3和WO3含量的微纳米结构复合材料具有相当大的潜力，可以屏蔽核医学中使用的一些诊断放射性核素以及放射显像机(如x线摄影，乳房x线摄影或PET扫描)的有害影响。

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来源期刊

Results in Physics MATERIALS SCIENCE, MULTIDISCIPLINARYPHYSIC-PHYSICS, MULTIDISCIPLINARY

CiteScore

8.70

自引率

9.40%

发文量

754

审稿时长

50 days

期刊介绍： Results in Physics is an open access journal offering authors the opportunity to publish in all fundamental and interdisciplinary areas of physics, materials science, and applied physics. Papers of a theoretical, computational, and experimental nature are all welcome. Results in Physics accepts papers that are scientifically sound, technically correct and provide valuable new knowledge to the physics community. Topics such as three-dimensional flow and magnetohydrodynamics are not within the scope of Results in Physics. Results in Physics welcomes three types of papers: 1. Full research papers 2. Microarticles: very short papers, no longer than two pages. They may consist of a single, but well-described piece of information, such as: - Data and/or a plot plus a description - Description of a new method or instrumentation - Negative results - Concept or design study 3. Letters to the Editor: Letters discussing a recent article published in Results in Physics are welcome. These are objective, constructive, or educational critiques of papers published in Results in Physics. Accepted letters will be sent to the author of the original paper for a response. Each letter and response is published together. Letters should be received within 8 weeks of the article''s publication. They should not exceed 750 words of text and 10 references.