The laser diffraction particle sizing technique is reviewed. This method is generally used in a line-of-sight mode whereby the near–forward scattering from an ensemble of particles large compared to the wavelength is collected and analyzed. The inverse scattering problem, i.e. determination of particle size distribution information from measured light scattering properties utilizes Fraunhofer diffraction theory. The relevant light scattering theory, optical system configurations, and inverse scattering formulation for this technique are discussed.
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1987
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