Radiative transfer scattering data relevant to fly ash

Abstract
The equations for radiative transfer require scattering parameters in the form of the extinction, absorption and scattering efficiencies and the phase function. Averaged efficiencies for clouds of spherical particles of complex refractive index m=1.5-i0.012 illuminated by black body radiation are presented. These are seen to depend only on the product of the modal particle size and the radiation temperature.