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Appl Opt. 2000 Dec 20;39(36):6897-917.

Mie light-scattering granulometer with adaptive numerical filtering. I. Theory.

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Département d'Optique Théorique et Appliquée, Office National d'Etudes et de Recherches Aérospatiales, 2 avenue E Belin, BP 4055, 31055 Toulouse, France.


A search procedure based on a least-squares method including a regularization scheme constructed from numerical filtering is presented. This method, with the addition of a nephelometer, can be used to determine the particle-size distributions of various scattering media (aerosols, fogs, rocket exhausts, motor plumes) from angular static light-scattering measurements. For retrieval of the distribution function, the experimental data are matched with theoretical patterns derived from Mie theory. The method is numerically investigated with simulated data, and the performance of the inverse procedure is evaluated. The results show that the retrieved distribution function is quite reliable, even for strong levels of noise.

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