Abstract

A new multiangle light scattering instrument is described for the classification of single aerosol particles in a flowing gas stream. Simultaneous measurement at sixteen scattering angles over the surface of a spherical chamber permits determination of a variety of optical observables useful for the subsequent characterization of each measured particle. Particles of 0.2–4.0-μm diameter have been measured and data collected at rates exceeding 200 particles/s. Data from polystyrene latex particles, liquid droplets, and irregular particles are shown. Spherical particle data are compared to theoretical calculations and used to confirm the validity of the measurement as well as a powerful calibration procedure.

© 1988 Optical Society of America

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