Computer Modeling of Non-linear Sheaths with Dust Particles

Abstract

Computer modeling of sheaths with dust particles, performed by the means of the modified particle-in-cell (PIC) method with self-consistent dust particle charge as well as electron and ion velocity distribution functions, show that dust particles can strongly influence the properties of these sheaths. This influence is caused by a selective collection and a scattering of electrons and ions by dust particles with self-consistent electric charge. That causes a change of both, the Bohm's criterion on the sheath boundary and the other sheath parameter distributions. This chapter examines non-linear sheaths in plasmas with dust particles using the computer modeling with self-consistent velocity distribution functions of electrons and ions and investigates the influence of these particles on sheaths.