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Figure 1
(a) Geometry of a grazing-incidence X-ray diffraction (GIXD) experiment with k0 and k representing the wavevectors of the primary and of the scattered X-ray beam, respectively, together with the corresponding angle of incidence αi, the in-plane scattering angle θf and the out-of-plane scattering angle αf. The corresponding scattering vector q is split into an in-plane part qxy and an out-of-plane part qz. (b) A reciprocal-space map measured in GIXD geometry plotted as a function of qxy and qz using a colour code for the measured intensity. The reciprocal-lattice points of the thin film crystallites grown in a fibre texture with a fibre axis oriented in the z direction degenerate to concentric rings around that axis.

ISSN: 2053-2733
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