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基玻璃添加高炉灰尘用于辐射屏蔽应用
I A El-Mesady1, M Zalabia1, W M Abd-Allah2
1Department of Physics, Faculty of Science, Menoufia University, Egypt.
概括
这项研究研究了新型玻璃的辐射屏蔽特性,其中包括高炉粉尘 (BFD). 25%BFD的玻璃显示出优异的光子衰减,使其成为辐射屏蔽应用的有希望的材料.
科学领域:
- 材料科学 材料科学 材料科学
- 核工程 核工程是指核工程.
- 固态物理 固态物理
背景情况:
- 开发用于辐射屏蔽的先进材料对于核安全和医疗应用至关重要.
- 研究废弃物,如高炉灰尘 (BFD),将其纳入功能性材料,为环境和经济带来好处.
- 了解玻璃系统中的结构属性关系是优化其性能的关键.
研究的目的:
- 合成和描述含有不同度高炉粉尘 (BFD) 的新型玻璃系列.
- 综合评估这些眼镜的结构,机械,光学和核辐射屏蔽性能.
- 为了确定BFD的最佳组成,以增强光子衰减.
主要方法:
- 玻璃样本的组成 (75-x) B2O3 + 25 Bi2O3 + x BFD (x = 0,5,15,25 mol%) 用炼灭方法进行了准备.
- 使用X射线衍射和紫外线可见光谱分析了结构和光学特性.
- 用Phy-X/PSD软件和PHITS模拟代码计算辐射屏蔽参数,并通过超声波测量进行补充.
主要成果:
- 低于0.3的Poisson比率表明了高度交叉连接的玻璃网络.
- 增加的BFD含量导致线性电/电解敏感性和光带间隙的减少.
- 线性衰减系数 (μ) 和质量衰减系数 (μm) 随着BFD度的增加而增加,在S4样本 (25%BFD) 中观察到的最高值.
- 半值层 (HVL) 和平均自由路径 (MFP) 随着BFD含量增加而下降.
- 有效原子数 (Zeff) 显示了能量依赖的行为,S4玻璃在广泛的光子能量范围内表现出有利的屏蔽特性.
结论:
- 在B2O3-Bi2O3玻璃系统中加入高炉灰尘显著提高了它们的辐射屏蔽能力.
- 含有25mol%BFD (S4) 的玻璃样本表现出最有效的光子衰减特性.
- 这些发现表明,含有BFD的眼镜是先进的辐射屏蔽材料的有希望的候选者.
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