Radiation transfer in layers with oriented spheroidal particles

The formation of radiation intensity in layers with spheroidal particles or iented along the axis perpendicular to the plane of the layer is considered on the basis of numerical solution of the radiation transfer equation. An algorithm based on the layer doubling method is developed for solving the t ransfer equation with parameters depending on the propagation direction of radiation. The radiation intensity deep inside a layer with the Fresnel ref lection at the boundaries and reflection and transmission coefficients are calculated.