A theoretical study of elastic X-ray scattering

Stewart, Robert F. and Feil, Dirk (1980) A theoretical study of elastic X-ray scattering. Acta crystallographica Section A: Crystal physics, diffraction, theoretical and general crystallography, 36 . pp. 503-509. ISSN 05677394

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Abstract:	Bragg X-ray scattering intensities are defined as scattering by the thermodynamic average electron-charge density. Purely elastic, kinematic X-ray scattering by a target in thermal equilibrium is always larger than Bragg scattering. At low temperatures, the elastic scattering becomes Bragg scattering. For large molecules, such as a crystal, at ordinary temperatures the elastic and Bragg scattering differ in a relative sense by O(N-1), where N is the number of vibrational degrees of freedom. For most practical cases the Bragg scattering is essentially the same as purely elastic scattering of X-rays.
Item Type:	Article
Copyright:	© 1980 The International Union of Crystallography
Link to this item:	http://purl.utwente.nl/publications/59204
Official URL:	http://dx.doi.org/10.1107/S0567739480001155
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