Measurement of the angular variation of light scattered from single aerosol droplets

An instrument was constructed to measure the intensity of light scattered at various angles from a single droplet of dioctyl phthalate of about one micron radius or larger, illuminated by radiation of 436 millimicrons wavelength. The general principle of the measurement is to suspend a charged parti...

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Bibliographic Details
Published in:Journal of colloid science 1961-01, Vol.16 (1), p.68-84
Main Authors: Gucker, Frank T., Egan, James J.
Format: Article
Language:English
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Summary:An instrument was constructed to measure the intensity of light scattered at various angles from a single droplet of dioctyl phthalate of about one micron radius or larger, illuminated by radiation of 436 millimicrons wavelength. The general principle of the measurement is to suspend a charged particle between two electrostatic plates, illuminate it with a parallel beam of monochromatic light, and measure with a sensitive photometer the light scattered at various angles from the incident beam. Scattering curves for four particles varying in size from 0.7 to 1.5 microns radius are presented and compared with curves calculated from Mie's electromagnetic theory. In general the agreement is satisfactory.
ISSN:0095-8522
DOI:10.1016/0095-8522(61)90064-2