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Figure 7
Diffraction efficiency maps of three different zone plates for different rotation angles around the y axis (top) and the corresponding diffraction efficiencies (bottom). White dots mark the maps where the moiré fringes in the x direction are minimized; the optimal angles correspond well with the maxima of the approximate fits made in the efficiency curves.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
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