The ion motion in the field of ion-sound surface wave

Abstract

Summary form only given. The motion of ions in the field of an ion-sound surface wave (ISSW) is considered. The investigation is carried out for two planar structures. In the first case, the ISSW propagating at the boundary between plasma and vacuum medium is considered. The process for ISSW propagating between two parallel metal planes is investigated too. In the last case the presence of a vacuum-gap sheath region separating the metal planes from the plasma is assumed. The consideration of the problem studied is carried out for different values of the plasma density, electron temperature, field frequency and field amplitude. The obtained results have shown that by a means of varying of plasma density, electron temperature, field frequency and field amplitude the different velocities of ions and directions of their motion may be reached. The investigation has a technological importance too. On the base of studied process the construction devices for polishing of surfaces is possible. The conditions when number of particles which fall on the polished surface (which is parallel to boundary between a plasma and a vacuum region) under angle smaller when 60 degree (oblique particles) is more when 50% from all particles which takes part in motion in SW field are founded. The dependencies of number of oblique particles from field frequency, amplitude, electron temperature and plasma density are obtained.