Infrared Extinction Coefficients of Artificial Aerosol

The artificial aerosol is widely used in the modern battlefields to protect the potentialtargets and to conceal the movement of personnel and materials. In this paper, the double-bandinfrared extinction coefficients of the artificial aerosol have been calculated and compared withthe experimental data. The particulates were assumed to be small spheres and Mie's theory wasemployed with the grain size distribution function being lognormal. The numerical and theexperimental results show that the size distribution and the materials of the particles are decisiveof their infrared extinction capability.