Kinetic theory of the plasma sheath transition in a weakly ionized plasma
Abstract
The boundary layer of a weakly ionized rare gas discharge is treated using kinetic theory. A selfconsistent twoscale analysis is performed and the exact presheath and sheath solutions are constructed for the following model: A plasma consisting of Boltzmann distributed electrons and singly charged atomic ions is in contact with a negative absorbing wall. The ion kinetics is dominated by charge exchange with cold neutrals (T_{0}≪T_{}). The meanfreepath λ is constant and large compared with the electron Debye length λ_{D}. This model represents a collisiondominated counterpart to the well known TonksLangmuir model of the collisionfree plasma.
 Publication:

Physics of Fluids
 Pub Date:
 December 1981
 DOI:
 10.1063/1.863332
 Bibcode:
 1981PhFl...24.2163R
 Keywords:

 Boundary Layer Plasmas;
 Electron Plasma;
 Kinetic Theory;
 Plasma Interactions;
 Plasma Jets;
 Plasma Sheaths;
 Boltzmann Distribution;
 Gas Discharges;
 Plasma Potentials;
 Self Consistent Fields;
 Space Charge;
 Plasma Physics