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Figure 5
Beam paths in a horizontal cross section of a sample of convex shape. The coordinate y is along the centreline of the incident beam, x is perpendicular to y in the scattering plane, y′ and x′ are the corresponding coordinates with respect to the scattered beam. In the general case the cross section depends on the axial coordinate z, and an integration is needed. In the insert a disc-like sample in the asymmetric reflection geometry is shown.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 6| Part 2| March 1999| Pages 69-80
doi:10.1107/S0909049599000291
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