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Figure 1
The FWHM wq of the Gaussian distribution for the effect of partial coherence of the source beam, plotted versus (a) sample-to-detector distance for different coherence length and (b) coherence length for different sample-to-detector distances. In (a) dashed lines denote the boundaries separating far-field and near-field for 8 µm and 163 µm from left to right. In (b) the intersections of dashed lines and colored lines denote the differences of [\sigma_q] at different s for [\xi] = 8 µm and 163 µm.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 18| Part 6| October 2011| Pages 823-834
doi:10.1107/S0909049511037149
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