Variational Approach to X-Ray Diffuse Scattering
β Scribed by S. S. Fanchenko; A. A. Nefedov
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 112 KB
- Volume
- 212
- Category
- Article
- ISSN
- 0370-1972
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract We review recent work done on polymer colloids by smallβangle Xβray scattering (SAXS) and smallβangle neutron scattering (SANS). Special emphasis is laid on the variation of scattering contrast for both methods. The theory of contrast variation as applied to SAXS and SANS is presented.
The Green's function formalism is applied to the analysis of the surface contribution to the inelastic scattering of X-rays by acoustic modes of thermal excitations in a crystal. Crystals with a cubic unit cell are analysed. It is shown that the surface contribution to thermal diffuse scattering (TD
X-ray scattering allows, for example, the ground-state electron density of a crystal, say hexagonal close-packed Be, or a molecular solid, to be extracted. Two routes will be discussed by means of which progress should prove possible on fundamental aspects of density functional theory, given such in