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- W4387362241 abstract "In experiments utilizing fourth-generation synchrotron radiation and Free Electron Laser (FEL) beamlines, a primary challenge for X-ray optical elements is to achieve and maintain high-intensity focused x-ray beams with near-perfect wavefront quality and high stability. These optical elements inherently demand more stringent specifications than those for other applications because of the shorter wavelength and the ultra-small emittance of the radiation beams from these sources. Coherent photons from diffraction-limited light sources further underscore the necessity for a controlled wavefront. Maintaining a uniform wavefront is crucial for phase-sensitive imaging techniques and for various coherent x-ray scattering experiments, such as tomography, coherent x-ray diffraction imaging, x-ray photon correlation spectroscopy and coherent surface scattering imaging. Therefore, x-ray optics must be manufactured close to ideal mathematical shapes, automatically align and focus beams according to experimental needs, and offer real-time correction to wavefront deformations. At the Advanced Photon Source (APS), we have demonstrated the application of a neural network model to automatically control deformable mirrors and the use of Bayesian optimization with Gaussian processes to align and stabilize focusing optical systems." @default.
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- W4387362241 date "2023-10-05" @default.
- W4387362241 modified "2023-10-06" @default.
- W4387362241 title "AI-driven real-time optics control system to achieve aberration-free coherent wavefronts at fourth-generation synchrotron radiation and free electron laser beamlines" @default.
- W4387362241 doi "https://doi.org/10.1117/12.2677457" @default.
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