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Updated: May 6, 2026

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提高X射线镜的质量:实验室间的光学计量协作以指导确定性抛光

Simon G Alcock¹, Ioana-Theodora Nistea¹, Murilo Bazan da Silva¹

¹Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom.

The Review of scientific instruments

|August 27, 2025

概括

改善X射线镜像计量对于同步电子和自由电子激光设备至关重要. MooNpics的合作提升了光学计量技术,使镜面的精度提高了十倍.

科学领域:

光学和光学
材料科学
测量学

背景情况:

在先进的光源中,X射线镜的表面质量极大地限制了光学性能.
精确的计量数据对于确定性抛光和实现亚纳米精度光学至关重要.
目前的计量能力与复杂,大光学的可重复测量作斗争.

研究的目的:

增强光学计量能力,用于可复制的X射线光学测量 (<1 nm rms高度误差,<100 nrad rms斜率误差).
研究和解决用于挑战性X射线光学仪器的校准问题.
展示一个圆的X射线镜的测量和计算结果.

主要方法:

通过多个实验室对三个具有挑战性的X射线光学 (超平面,抛物线弧形圆,强曲线球) 进行圆形测量.
使用各种计量仪器来评估镜面错误.
通过计量数据指导应用了两次离子束计量,以改进圆镜.

主要成果:

确定并纠正了几种计量仪器的校准问题.
离子束显著改善了圆镜的参数,减少了空间抛光错误,完善了它的形状.
在圆镜的斜率和高度错误中大约减少了十倍.

结论:

穆恩皮克斯的合作成功地推进了高精度X射线光学的光学计量.
合作测量对光学安装,对齐和数据分析进行了精细的"最佳实践"程序.
预计X射线光学生产质量的改善将使许多科学界受益.

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