Influence of Dust Particles on Sheaths in an Oblique Magnetic Field

摘要

It is simulated the non-linear one-dimensional sheaths with dust particles of a given size, density and profile in an oblique magnetic field, using the modified PIC method with self-consistent dust particle charge. The Coulomb scattering and the collection of electrons and ions by dust particles are simulated by the Monte-Carlo method with 3D velocity distribution functions for electrons and ions. It is shown that an influence of dust particles on sheaths is depending on the ratio between characteristic times and lengths of the considered problem. Dust particles change boundary conditions and spatial distributions of sheath parameters causing a double structure of sheaths at an effective collection of ions by dust particles in sheaths.