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Modern X‐ray optics is able to produce very tightly focused beams. The size of these focused spots is comparable to the scale of large molecules and therefore to the lattice spacing of crystals of these molecules. In this case, the phase of the illuminating beam may vary on the scale of the lattice and conventional diffraction theory needs to be modified. In this paper, coherent diffraction by non‐planar beams is considered and it is shown that it is possible to uniquely recover the phase of the diffraction pattern.
Acta Crystallographica Section A Foundations of Crystallography – Wiley
Published: May 1, 2005
Keywords: ;
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