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Figure 2
Experimental interference patterns at incidence angle αi = 0.02° at different beam energies (a) E = 8 keV, (b) 15 keV and (c) 40 keV (wavelength in Å: 1.55, 0.83 and 0.31). (d) Transmission image of the direct beam in the region where the FBM is illuminated. The weakly visible vertical stripes cause the additional vertical lines of strong contrast in parts (a)–(c). Each image shows a field of view of 1.5 mm × 4.5 mm. The vertical offset of the camera was 5 mm in (a)–(c) and 0 mm in (d)

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 14| Part 2| February 2007| Pages 196-203
doi:10.1107/S0909049507003846
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