自行校准策略,以减少在偏斜度分析中自动聚合器系统性斜率测量误差的自校准策略
Ralf D Geckeler1, Andreas Just1, Michael Krause1
1Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany.
Journal of synchrotron radiation
|June 5, 2024
概括
在偏光度分析仪中使用重叠的网状图像的新策略显著减少了系统测量错误. 这种方法在没有外部设施的情况下校准成像属性,如扭曲和微图,提高同步子和X射线激光器的精度.
科学领域:
- 光学计量学是指光学计量学.
- 对于X射线科学的仪器仪表.
背景情况:
- 偏光度分析仪对于测量同步子和X射线自由电子激光器中的束造型光学至关重要.
- 在这些系统中常用的自动聚合器通过检测器上的网状图像位移来测量光学斜率.
研究的目的:
- 开发新的策略,以减少偏光度分析仪的系统测量误差.
- 在没有外部校准设备的情况下提取成像属性 (几何扭曲,微图).
主要方法:
- 使用一组重叠的原始图像数据的网络在不同的探测器位置.
- 采用插值和相关性来精确确定网状图像的移位.
- 在CCD上分析网状图像强度和尺寸变化,以进行 vignetting 和扭曲校正.
主要成果:
- 直接从冗余的网状图像数据中提取成像特性.
- 实现了系统错误的显著减少,高达五倍.
- 消除了对关键成像参数的外部校准设施的需求.
结论:
- 拟议的方法提供了对偏光度分析仪的自我校准方法.
- 对先进光源的光学形式的精确测量得到了增强.
- 减少系统错误导致关键光学元件的更可靠的表征.
关键词:
角度计量学 角度计量学自动聚合器自动聚合器处理数据的数据处理.偏向测量技术 (Deflectometry) 是一种方法.错误抑制 错误抑制 错误抑制测量形式 测量形式自由电子激光器是什么意思光学计量学是指光学计量学.个人资料测量 个人资料测量 个人资料测量同步机同步机是同步机.更多相关视频
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