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Figure 1
Scheme of the incidence and reflected X-ray beam on a spherical surface with a coordinate system selection. Solid blue and solid red rays represent the primary and reflected rays propagating in the incident plane XOZ, while dashed blue and red rays are in the orthogonal plane. A curved surface is considered as a cut from a sphere of radius R having base radius r. ΔYm and ΔZm indicate the offsets of the ray reflected on the surface curved in the coronal plane in comparison with the reflection on the flat surface.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 29| Part 3| May 2022| Pages 711-720
https://doi.org/10.1107/S1600577522002053
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