Accession Number:

AD0261747

Title:

THEORETICAL INVESTIGATIONS ON THE LIGHT SCATTERING OF SPHERES. XIII. THE WAVE LENGTH EXPONENT OF DIFFERENTIAL TURBIDITY SPECTRA

Descriptive Note:

Corporate Author:

WAYNE STATE UNIV DETROIT MICH

Personal Author(s):

Report Date:

1961-07-31

Pagination or Media Count:

1.0

Abstract:

The exact theory of the wave length exponent of the turbidity is developed for Rayleigh scattering and Debye-scattering and, particularly for Mie-scattering by non-absorbing spheres. The basic exponent n is computed from Mie-turbidity data, reported previously. The actual exponent to be expected in a given dispersed system, n sub o, is found to depend on three additional factors 1 the rate of change of the turbidity with the relative refractive index of the spheres 2 the dispersion of the relative refractive index of the spheres and 3 the refractive index of the medium. The advantages and limitations of an application of the wave length exponent to particle size determinations are discussed and labor saving approximating nalpha-relations, suitable for first approximation results on particle si e, are given. The effect of heterodispersion upon the wave length exponent is briefly discussed. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE