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Figure 2
Geometry in the reciprocal space for an asymmetric Laue case. As usual, only the area of interest is shown. The reciprocal lattice points 0 and H are far below the image. The Ewald spheres around these points intersect at Lc for the central kc value, whereas with any deviation Δk the intersection shifts to L. As defined in equation (8)[link], Kh = MH and Kh′ = M′H. The point M is found by the incident direction s0 on the new Ewald sphere with radius kc + Δk, and M′ is found by the normal to the crystal surface drawn through M.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 10| Part 3| April 2003| Pages 248-254
doi:10.1107/S0909049503005594
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