THEORETICAL INVESTIGATIONS ON THE LIGHT SCATTERING OF SPHERES. XIII. THE WAVE LENGTH EXPONENT OF DIFFERENTIAL TURBIDITY SPECTRA
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 n(alpha)-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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 31, 1961
- Accession Number
- AD0261747
Entities
People
- Hari L. Bhatnagar
- Wilfried Heller
Organizations
- Wayne State University