20 September 2007 Analysis and modification of x-ray mutual coherence with perfect-crystal diffraction
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X-ray diffraction by perfect crystal is discussed from the viewpoint of mutual coherence of an x-ray beam. From the time-dependent Takagi-Taupin equations that x-ray wavefields obey in crystal, the reflected wavefield is formulated as an integral transform of a general incident wavefield with temporal and spatial inhomogeneity. A reformulation of rocking-curve profile from the field solution of the time-dependent Takagi-Taupin equations allows experimental evaluation of the mutual coherence function of an x-ray beam. The rigorous relationship of the coherence functions before and after reflection clarifies how the coherence is transferred by a crystal.
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Hiroshi Yamazaki, Hiroshi Yamazaki, Tetsuya Ishikawa, Tetsuya Ishikawa, "Analysis and modification of x-ray mutual coherence with perfect-crystal diffraction", Proc. SPIE 6705, Advances in X-Ray/EUV Optics and Components II, 67050J (20 September 2007); doi: 10.1117/12.733935; https://doi.org/10.1117/12.733935


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