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Figure 3
(a) Diffraction geometry. O is where the X-ray beam and the sample interact; O′ is the transmitted beam position on the detector plane; A is the scattered beam position on the detector; ki and kf stand for the wavevectors for the incident and out-going beam, and q is the scattering wavevector. 2θ (i.e. angle O′OA) is the diffraction angle. (b, c) The pixelated scattering vector q map (b) and azimuthal angle φ map (c) on the ICCD, when the detector rotation angle is 25°, X-ray energy is 12.9 keV and the beam position is assumed to be vertically centered with the detector.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 22| Part 1| January 2015| Pages 49-58
https://doi.org/10.1107/S1600577514022747
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