Computation of Electromagnetic Scattering Parameters for Lognormal Distributionsof Magnetic Spheres: Theory and Algorithms

摘要

In this report, relevant parts of the scattering theory for magnetic spheres arepresented. Mass extinction coefficients, and the lognormal size distribution are defined. The theory and algorithms for integrating scattering parameters over size distributions are developed. The integrations are carried out in terms of dimensionless scattering, and size distribution parameters, which are simply related to the usual mass scattering coefficients. Fortran codes, which implement the algorithmic design, are presented, and examples of code use are given. Code listings are included. (AN).