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Figure 6
Grazing-incidence diffraction, multiple hkl and multiple wavelengths: Illustration of the variation of the angle ψ = |θhkl − α| by measurements at different Bragg angles θhkl, θ1 (a) and θ2 (b), using either two different hkl or two different wavelengths (in the latter case α has to be adjusted to keep τ fixed). The axis L3 is the diffraction vector, axis S3 is the surface normal (see also Fig. 4[link]); the incident and diffracted X-ray beams are indicated by X.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 38| Part 1| January 2005| Pages 1-29
doi:10.1107/S0021889804029516
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