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====Principle of theory====
The '''dynamical theory of diffracton''' considers the wave field in the periodic potential of the crystal and takes into account all multiple scattering effects. Unlike the [[kinematic theory of diffraction]] which describes the approximate position of [[Bragg_Law|Bragg]] or [[Bragg diffraction|Laue diffraction]] peaks in [[reciprocal space]], '''dynamical theory''' corrects for refraction, shape and width of the peaks, extinction and interference effects. Graphical representations are described in [[dispersion surfaces]] around reciprocal lattice points which fulfill the boundary conditions at the crystal interface.
====Outcomes====
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