Abstract

A polydisperse sample can be statistically represented by a log-normal distribution having two parameters, viz., geometrical standard deviation σg and modal size parameter Xm. In an earlier paper a method to determine σg from the shift in the angular position of the maximum in 2 vs θ plot was discussed. The present paper describes a method of determining the other parameter Xm from the polarization measurement in the forward direction. This can be achieved by comparing the angular position of maxima in P (degree of polarization) vs θ with that of the similar curve of a single particle. Certain experimental results are also discussed. This method is expected to be useful in routine particle size analysis.

© 1979 Optical Society of America

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