第一个X射线光谱图解和共振图解计算机断层扫描实验在SYNCHROTRON SOLEIL的SWING光线上进行
Anico Kulow1, Javier Pérez2, Redhouane Boudjehem1
1Univ. Grenoble Alpes, CNRS, Grenoble INP, Institut Néel, 25 Avenue des Martyrs, BP 166, 38042 Grenoble, France.
Journal of synchrotron radiation
|May 21, 2024
概括
在SWING光线线上的先进X射线图解使材料属性的详细3D映射成为可能. 这种技术成功地识别了线中的杂质,展示了其对纳米分析的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 同步子辐射物理 物理
- 纳米技术 纳米技术
背景情况:
- X射线图解学和计算机断层扫描已经在第四代同步仪上取得了进步,使定量多尺度结构分析成为可能.
- 如今,光谱学提供了光谱能力,提供了局部化的结构和光谱信息.
- 在Synchrotron SOLEIL的SWING光束线已经实现了一个纳米探针设置,用于先进的测量.
研究的目的:
- 用SWING光束线的纳米探针设置来展示光谱和共振图谱学的功能.
- 用2D光谱图谱和共振图谱断层扫描分析金属线样本.
- 为了展示杂质的检测和电子密度的计算.
主要方法:
- 在XANES模式中利用2D光谱图谱,提取复杂值折射率 (δ和β) 的光谱.
- 在两个光子能量下进行了共振图解断层扫描,以获得折射率下降 (δ) 的3D地图.
- 综合光谱和断层扫描数据用于全面的材料分析.
主要成果:
- 成功地从线中提取了复杂的折射率成分 (δ和β) 的光谱信息.
- 在Ni K边缘及以上的折射率下降 (δ) 的生成3D地图,揭示杂质.
- 证明了原子散射因子在计算近共振电子密度时的重要性.
结论:
- SWING光线线的纳米探针设置能够进行最先进的光谱和共振图谱实验.
- 该技术允许进行详细的纳米结构和化学分析,包括杂质检测.
- 该研究强调了基于同步成像的材料科学应用的进步.
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