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Figure 4
Angular distributions of the waves diffracted by 20 µm-thick crystal plates bent to a radius of 10 cm, calculated by equation (18)[link] and represented in the same energy spectrum as the incident waves. The incident spectra are shown by thick grey lines and consist of (a) a single monochromatic plane wave of energy 12 keV or (b)–(d) two coherent monochromatic waves with small differences in wavelengths. The dotted lines in (a) show the Darwin rocking curves for C*(440) and Si(440) reflections.

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ISSN: 2053-2733
Volume 76| Part 1| January 2020| Pages 55-69
https://doi.org/10.1107/S2053273319014347
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