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  4. Simultaneous regularization method for the determination of radius distributions from experimental multiangle correlation functions
 
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2001
Journal Article
Title

Simultaneous regularization method for the determination of radius distributions from experimental multiangle correlation functions

Abstract
Dynamic light scattering experiments have become a powerful tool in order to investigate the dynamical properties of complex fluids. In many applications in both soft matter research and industry so-called ""real world"" systems are subject of great interest. Here, the dilution of the investigated system often cannot be changed without getting measurement artifacts, so that one often has to deal with highly concentrated and turbid media. The investigation of such systems requires techniques that suppress the influence of multiple scattering, e.g., cross correlation techniques. However, measurements at turbid as well as highly diluted media lead to data with low signal-to-noise ratio, which complicates data analysis and leads to unreliable results. In this article a multiangle regularization method is discussed, which copes with the difficulties arising from such samples and enhances enormously the quality of the estimated solution. In order to demonstrate the efficiency of this multiangle regularization method we applied it to cross correlation functions measured at highly turbid samples.
Author(s)
Buttgereit, R.
Roths, T.
Honerkamp, J.
Aberle, L.B.
Journal
Physical Review. E  
DOI
10.1103/PhysRevE.64.041404
Language
English
Fraunhofer-Institut für Fertigungstechnik und Angewandte Materialforschung IFAM  
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