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Figure 5
(Top) The azimuthal average of the Fourier power spectrum of the recovered reference image of the Siemens star sample. The FPS is obtained by taking the mod square of the Fourier transform of Iref. The blue dashed line shows the noise floor, which was estimated by taking the average of the FPS over the last 30 values. The resolution cut-off (grey vertical line) is given by the resolution at which the FPS is equal to twice the noise floor (black dashed line). (Bottom) Histogram of the difference between the recovered wavefront angles (detector plane) from each of the split-1/2 data sets (blue bar chart). The solid black line shows the Gaussian model fit with a standard deviation of 6.0 nrad.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 53| Part 4| August 2020| Pages 927-936
https://doi.org/10.1107/S1600576720006925
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