镜子反射后的X射线光束质量:在第4代存储环光束线中对 toroidal 镜的实验和模拟结果
Juan Reyes-Herrera1, Rafael Celestre1, Marco Cammarata1
1European Synchrotron Radiation Facility, Grenoble, 38043, France.
Open research Europe
|November 22, 2023
概括
在X射线镜中的表面错误限制了光束质量. 我们的研究表明,这些错误与观察到的边缘相关联,无论光束的一致性如何,有助于镜像配置文件分析.
科学领域:
- 光学是什么?光学是什么?光学是什么?
- 同步子辐射科学科学
- 材料科学 材料科学 材料科学
背景情况:
- 射线镜的表面错误降低了光束质量,影响了先进的同步发射器设施的应用.
- 保持高光束质量对于低发射率和来自升级储存环的连贯X射线束至关重要.
研究的目的:
- 研究镜面误差对X射线束特征的影响.
- 分析反射的X射线束中的边缘图案,以了解它们与镜像缺陷的相关性.
主要方法:
- 在波浪器产生的X射线束中研究了边缘,这些X射线束被状镜子反射.
- 用单色和宽带光束以及可变镜像曲率进行实验和模拟.
- 将实验数据与包含部分连贯性的高级模拟进行了比较.
主要成果:
- 在不聚焦光束中观察到的边缘与镜像形状中的低空间频率结构直接相关.
- 这种相关性不管X射线束的连贯性质如何,都是正确的.
- 实验结果与模拟结果一致.
结论:
- 低空间频率镜面结构是观察到边缘的主要原因.
- 经典的光线跟踪和部分连贯模拟 (使用连贯模式分解) 准确地模拟了这些现象.
- 了解边缘形成有助于表征和减轻镜面错误,以改善X射线光学.
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