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![[Figure 1]](to5040fig1mag.jpg)
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Figure 1
Beam trajectories in a weakly bent crystal and schematic illustrations of interference between the beams. (a) Interference of a mirage diffraction beam (dashed curve with the corresponding refracted beam S1) with another mirage diffraction beam (solid curve with the corresponding refracted beam S2) to produce IFMD in a weakly bent part of the crystal. (b) Interference of a mirage diffraction beam (solid curve with the corresponding refracted beam S3) with a reflected beam from the bottom surface (dashed curves with the corresponding refracted beam S4) to produce IFMRB in a more weakly bent part. h is the reciprocal lattice vector and u the atomic displacement vector, and α1, α2, α3 and α4 are the glancing angles of the incident beam corresponding to the refracted beams S1, S2, S3 and S4, respectively. |
![[Figure 1]](to5040fig1.jpg)
 | JOURNAL OF APPLIED CRYSTALLOGRAPHY |
ISSN: 1600-5767
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