Presentation
4 October 2023 Towards wavefront preservation x-ray crystal monochromator for coherent light sources
Author Affiliations +
Abstract
The thermal deformation requirement for wavefront preservation through an X-ray crystal monochromator is found to restrict the standard deviation of the height error to less than 25 pm under certain conditions. By optimizing effective cooling temperature of liquid nitrogen cooled crystals, combined with the compensation of second order component in thermal deformation, we have an approach to reach this unprecedented requirement. As an example, the criteria on thermal deformation of a high heat-load monochromator crystal for a LCLS-II-HE beamline can be achieved for 100 W FEL beam. Wavefront propagation simulations confirm that the reflected beam intensity profile is satisfactory.
Conference Presentation
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Lin Zhang, Matthew Seaberg, and Hasan Yavas "Towards wavefront preservation x-ray crystal monochromator for coherent light sources", Proc. SPIE PC12694, Advances in X-Ray/EUV Optics and Components XVIII, PC1269405 (4 October 2023); https://doi.org/10.1117/12.2675444
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KEYWORDS
X-rays

Crystals

Monochromators

Wavefronts

Light sources

Physical coherence

Coherent x-ray sources

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