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Figure 5
WAXS patterns of a GO film oriented with its normal vector n (a) parallel to the incident X-ray beam and (c) perpendicular to the beam. (b) and (d) The corresponding azimuthally integrated diffraction patterns plotted as a function of the scattering vector magnitude q. The main scattering features associated with GO are labeled in both the 2D WAXS images and the 1D integrated patterns. (e) Schematic representation of the GO film orientation relative to the incident X-ray beam, showing configurations where the film's normal vector n is either parallel or perpendicular to the beam and the corresponding contrast observed in their WAXS patterns.

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