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Figure 5
Direct comparison of the transmission through the lens and diffraction into the first focused order of (a) a flat (MLL #1) and (b) a wedged MLL (MLL #4) for angles from 0° to 0.36°. The angle of the maximum diffracted intensity is 0.16° and 0.20° for the wedged and flat lens, respectively. For the wedged lens it is evident that the transmitted intensity is almost uniformly distributed over the aperture of the entire wedged lens, which is also true for the diffracted beam except for the part representing the significant layer placement error. Contrast has been reduced to 15% for better display of the effects. The measurement was made in the near field with the situation shown in Fig. 4[link](a). The dashed line in the rightmost images represents the axis, which was used for the construction of the representation in Fig. 6[link]. Vertical detector position coordinates correspond to the vertical detector position coordinates in Fig. 6[link].

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 24| Part 2| March 2017| Pages 413-421
https://doi.org/10.1107/S1600577517001722
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