Influence of boundary conditions on the spectra of thermal radiation by a semibounded plasma

Within the kinetic theory of thermal radiation by a semibounded plasma with a random scattering boundary a detailed comparison of radiation intensity spectra is made for different boundary conditions. Three types of model boundary conditions for random scattering boundary taking into account the diffe-- rent conservation laws (number density, normal component of particle current and energy) are considered. The peculiarities of spectra for such models are elucidated