Analysis of intensity correlation spectra of mixtures of polystyrene latex spheres by least squares
- 1 October 1973
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 23 (7), 379-381
- https://doi.org/10.1063/1.1654926
Abstract
This letter presents the results of an experimental investigation of the self‐beat intensity correlation spectra of light scattered from mixtures of two sizes of polystyrene latex spheres of an approximately 1 : 2 diameter ratio. The precision of the data permits the deduction of scattering amplitude ratios (concentration ratios) and particle diameters by straightforward least‐squares analysis, which, in general, are within 5% of actual values. The use of computer‐evaluated uncertainties in calculating weighted means is found to improve the statistical analysis.Keywords
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