Data driven drift correction for complex optical systems

Aashwin Mishra

doi:10.1107/s1600577526003395

2026-05-01

DOI：10.1107/s1600577526003395

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摘要

En 中文

为利用现代光源光谱亮度的千倍提升，日益复杂的实验需要极高的光束轨迹精度。在实验数小时期间维持最优轨迹所需精度需进行主动漂移控制。本文提出时变贝叶斯优化（TVBO）作为数据驱动的稳健漂移校正方法，并以由六个晶体和十二个输入维度组成的分束延迟光学系统为例进行说明。通过数值模拟，展示了TVBO在处理线性漂移、非平滑时间漂移以及约束TVBO在多目标控制场景中的应用，以反映实际工作条件。该方法可轻松适配于其他X射线光束调节和导向系统，包括多晶体单色器和掠入射镜，以在跨越数小时的实验过程中保持亚微米和纳弧度级光束稳定性。

Keyword:

Bayesian optimization

X-ray free electron laser

X-ray optics

drift correction

split and delay

machine learning

期刊

Journal of Synchrotron Radiation

IF:

论文数:

166

被引数:

8.5K

机构

united states department of energy (doe)

学者数:

11.3W

论文数: 9.6W

被引数: 246

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