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Figure 4
Comparison between measured spot sizes (filled circles) and the expectations (lines) depending on the focal length for single structures in different materials. The inclined solid line crossing the origin is the expected demagnified source size simage. The dashed line is the expected diffraction-limited spot size and the grey line is the expected spot size owing to aberrations and diffraction. Open squares present the focal length and the expected spot size for diffraction-limited focusing according to (14)[link] and (18)[link]. Diamonds show the focal length and the related diffraction-limited spot size for depth-matched focusing according to (26)[link] and (27)[link]. Both focal lengths coincide in filled squares.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 18| Part 2| March 2011| Pages 198-211
https://doi.org/10.1107/S090904951005332X
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