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.

PACS: 61.43.Hv, 47.53.+n, 82.70.Rr, 92.60.Mt (all) DOI: 10.1070/PU1994v037n09ABEH000044 URL: https://ufn.ru/en/articles/1994/9/c/ A1994PQ23800003 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) BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks 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