Reviews of topical problems

In situ determination of the fractal dimensions of aerosol particles

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A.A. Bochvar All-Russia Scientific-Research Institute of Inorganic Materials, ul. Rogova 5-a, Moscow, 123060, Russian Federation

A review is given of the available in situ methods for the diagnostics of fractal aerosol aggregates, which represent loose branched structures with scaling-invariant geometric characteristics. A new method for in situ determination of the fractal dimensions of particles is proposed: it is based on an analysis of the aerodynamic behaviour of aerosol particles in electric and gravitational fields, and also on the dependence of the particle density in a cluster on the distance from the cluster center, which is typical of fractal objects.

Fulltext is available at IOP
PACS: 61.43.Hv, 47.53.+n, 82.70.Rr, 92.60.Mt (all)
DOI: 10.1070/PU1994v037n09ABEH000044
Citation: Emets E P, Novoselova A E, Poluektov P P "In situ determination of the fractal dimensions of aerosol particles" Phys. Usp. 37 881–887 (1994)
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Оригинал: Емец Е П, Новоселова А Э, Полуэктов П П «In situ-определение фрактальной размерности аэрозольных частиц.» УФН 164 959–966 (1994); DOI: 10.3367/UFNr.0164.199409c.0959

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