Wavefront preserving X-ray optics for Synchrotron and Free Electron Laser photon beam transport systems

D Cocco, G Cutler, MS Del Rio, L Rebuffi, X Shi… - Physics Reports, 2022 - Elsevier
In the last two decades, after the first light from the new Free Electron Lasers, either in the
UV (FLASH [1] and FERMI@ Elettra [2]) or X-ray (LCLS [3] and SACLA [4]), more and more …

Fast shaping control of x ray beams using a closed-loop adaptive bimorph deformable mirror

SG Alcock, IT Nistea, VG Badami, R Signorato… - Optica, 2023 - opg.optica.org
High-speed adaptive correction of optics, based on real-time metrology feedback, has
benefitted numerous scientific communities for several decades. However, it remains a …

Development of x-ray wavefront sensing techniques for adaptive optics control at the advanced photon source

X Shi, Z Qiao, L Rebuffi, M Wojcik… - Synchrotron …, 2022 - Taylor & Francis
The planning and construction of new and upgraded high-brightness X-ray synchrotron and
free electron laser sources, such as the Advanced Photon Source upgrade project (APS …

AutoFocus: AI-driven alignment of nanofocusing X-ray mirror systems

L Rebuffi, S Kandel, X Shi, R Zhang, RJ Harder… - Optics …, 2023 - opg.optica.org
We describe the application of an AI-driven system to autonomously align complex x-ray-
focusing mirror systems, including mirrors systems with variable focus spot sizes. The …

Real-time machine-learning-driven control system of a deformable mirror for achieving aberration-free X-ray wavefronts

L Rebuffi, X Shi, Z Qiao, MJ Highland, MG Frith… - Optics express, 2023 - opg.optica.org
A neural-network machine learning model is developed to control a bimorph adaptive mirror
to achieve and preserve aberration-free coherent X-ray wavefronts at synchrotron radiation …

Thermal optimization of a high-heat-load double-multilayer monochromator

P Brumund, J Reyes-Herrera, C Morawe… - Journal of …, 2021 - journals.iucr.org
Finite-element analysis is used to study the thermal deformation of a multilayer mirror due to
the heat load from the undulator beam at a low-emittance synchrotron source, specifically …

Euv and hard x-ray hartmann wavefront sensing for optical metrology, alignment and phase imaging

O de La Rochefoucauld, G Dovillaire, F Harms, M Idir… - Sensors, 2021 - mdpi.com
For more than 15 years, Imagine Optic have developed Extreme Ultra Violet (EUV) and X-
ray Hartmann wavefront sensors for metrology and imaging applications. These sensors are …

Data-driven modeling and control of an x-ray bimorph adaptive mirror

G Gunjala, A Wojdyla, KA Goldberg, Z Qiao… - Synchrotron …, 2023 - journals.iucr.org
Adaptive X-ray mirrors are being adopted on high-coherent-flux synchrotron and X-ray free-
electron laser beamlines where dynamic phase control and aberration compensation are …

Advancing AI/ML at the Advanced Photon Source

C Benmore, T Bicer, MKY Chan, Z Di… - Synchrotron …, 2022 - Taylor & Francis
The ongoing Advanced Photon Source Upgrade (APS-U) will replace the entire APS storage
ring with a ring based on a reverse bend multi-bend achromat (MBA) lattice design. The new …

The X-ray focusing system at the time-resolved AMO instrument

M Seaberg, L Lee, D Morton, X Cheng… - Synchrotron …, 2022 - Taylor & Francis
The emergence of X-ray Free Electron Lasers (XFELs) in recent years has opened up new
fields of research, with the merging of short wavelengths and ultrafast timescales [1, 2]. As …