Publication Date:
1998-01-01
Description:
Anisotropy of Anomalous Scattering (AAS) is a resonance effect that can occur in the vicinity of an absorption edge of a bonded atom. The description of scattering requires a generalized scattering model showing that, in principle, all single crystal reflections become dependent on the rotation of the crystal about the scattering vector. In addition, it is well known that ’forbidden‘ reflections being systematically extinct in the conventional model can be excited and used to derive information about the absorbing element partial structure. The present contribution suggests for a centrosymmetric structure that also relative total structure factor sign information can be extracted from the intensity variations of allowed central lattice row reflections, provided the resonant scattering partial structure is known.
Print ISSN:
2194-4946
Electronic ISSN:
2196-7105
Topics:
Geosciences
,
Physics
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