Abstract
Aerosol number concentrations based on quantitative determination of transmittance of a narrow laser beam were measured in growing droplet aerosols under multiple scattering conditions. A correction term to the Beer-Lambert attenuation law accounting for multiple scattering effects was computed by means of Monte-Carlo simulations. Numerical procedure was applied to find the value of the multiple scattering correction term for a satisfying the corrected attenuation law for a given measurement and hence yielding the actual concentration. The results were compared with aerosol electrometer measurements and show that the described method is suitable for accurate concentration determination in the presence of multiple scattering.
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