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Information retrieval from X‐ray small‐angle scattering with polychromatic (`white') synchrotron radiation
| Content Provider | Semantic Scholar |
|---|---|
| Author | Glatter, Otto Laggner, Peter |
| Copyright Year | 1983 |
| Abstract | The possibilities of obtaining structural information from X-ray small-angle scattering experiments with `white' polychromatic synchrotron radiation using line collimation are investigated by numerical simulation. Theoretical scattering curves of geometrical models were smeared with the appropriate wavelength distributions and slit-length functions, afflicted by statistical noise, and then evaluated by identical methods as normally used for experimental data, as described previously [program ITP; Glatter (1977). J. Appl. Cryst. 10, 415–421]. It is shown that even for a wavelength distribution of 50% half width, the information content is not limited to the parameters derived from the central part of the scattering curves, i.e. the radius of gyration and the zero-angle intensity, but also allows qualitative information on particle shape via the distance distribution function p(r). By a `hinge-bending model' consisting of two cylinders linked together at different angles it is demonstrated that changes in the radius of gyration amounting to less than 5% can be detected and quantified, and the qualitative changes in particle shape be reproduced. |
| Starting Page | 42 |
| Ending Page | 46 |
| Page Count | 5 |
| File Format | PDF HTM / HTML |
| DOI | 10.1107/S0021889883009929 |
| Alternate Webpage(s) | https://journals.iucr.org/j/issues/1983/01/00/a22863/a22863.pdf |
| Alternate Webpage(s) | https://doi.org/10.1107/S0021889883009929 |
| Volume Number | 16 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
