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Figure 2
(a) The surface that satisfies conditions for parafocusing at a specific scattering angle where the X-ray source, S, detector position, F, and elliptical footprint on a planar specimen are indicated. (b) A cross section through the prolate spheroid for clarity. Note this is not a focusing circle.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 53| Part 4| August 2020| Pages 1073-1079
https://doi.org/10.1107/S1600576720008651
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