Analysis of the Beaucage model
作者： Boualem Hammouda
DOI: 10.1107/S0021889810033856
关键词: Nonlinear system 、 Fractal 、 Scale (ratio) 、 Statistical physics 、 Scattering 、 Small-angle scattering 、 Cover (topology) 、 Exponent 、 Radius of gyration 、 Mathematics
摘要: The Beaucage model is used to analyze small-angle scattering (SAS) data from fractal and particulate systems. It models the Guinier Porod regions with a smooth transition between them yields radius of gyration exponent. This an approximate form earlier polymer that has been generalized cover wider scope. practice allowing both scale factors vary independently during nonlinear least-squares fits introduces undesired artefacts in fitting SAS this model. Such as well error original formulation are discussed. compared other published models.
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