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Figure 3
The phase-contrast signal increases for the low absorption contrast metal foil sample when increasing the sample-to-detector distance. The graphs show a vertical mean over the bottom 20 rows of pixels of the two images shown in Fig. 2 where the sample is thickest. Data at every 25 mm increase in sample-to-detector distance are shown. The graphs are offset vertically for clarity. (a) Data without phase retrieval and (b) data after phase retrieval, corresponding to Figs. 2(a) and 2(b), respectively.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 56| Part 3| June 2023| Pages 673-682
https://doi.org/10.1107/S1600576723003011
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