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Figure 18
Required vectors and angles for both March–Dollase and spherical harmonics corrections for (a) symmetric reflection, (b) Debye–Scherrer, (c) asymmetric reflection, (d) symmetric transmission and (e) asymmetric transmission geometries. [{\bf d}^*] is the diffraction vector, [{\bf n}^*] is the rotation axis of the specimen and [{\bf p}^*] is the preferred orientation vector. The angle between [{\bf d}^*] and [{\bf n}^*] is Δ, [{\bf d}^*] and [{\bf p}^*] is α, and [{\bf n}^*] and [{\bf p}^*] is ρ. φ is the rotation angle about [{\bf n}^*] of the projection of [{\bf p}^*] onto the plane defined by [{\bf n}^*]. [{\bf s}_0] and [{\bf s}] are the incident and diffracted beams, respectively.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 50| Part 1| February 2017| Pages 240-251
https://doi.org/10.1107/S1600576717000085
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