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Figure 10
(a) A schematic representation of the spherical coordinates roll, pitch and yaw related to the projection of the scattering vector Q and the sample position in the xyz coordinate system. (b) A sketch of a pitch rotation which, given two points at different z positions, involves an angular deviation (θ) between the z axis and Qz. A rotation about the z axis instead (yaw) will result in an angular difference (φ) between the y axis and the vector component Qy.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 53| Part 1| February 2020| Pages 58-68
https://doi.org/10.1107/S1600576719015504
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