Journal ArticleDOI
Self-consistent kinetic theory of a plasma sheath
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TLDR
A fully kinetic theory model of the sheath of a dc glow discharge includes a direct numerical solution of Boltzmann equations for the spatial and velocity dependence of the electron and Ar+ distribution functions with a self-consistent electric field calculated from the Poisson equation.Abstract:
A fully kinetic theory model of the sheath of a dc glow discharge is presented. This model includes a direct numerical solution of Boltzmann equations for the spatial and velocity dependence of the electron and Ar + distribution functions with a self-consistent electric field calculated from the Poisson equation. The solution is obtained using a collocation method that employs Legendre quadrature points for both angular and spatial variables, and nonclassical speed quadrature points for velocity. The results of the steady state direct numerical solution are compared with a particle-in-cell Monte Carlo simulation. As anticipated, it is found that the space and energy-dependent ion distribution function varies strongly with a decrease in the ratio of the Debye length to the ion mean free path.read more
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Journal ArticleDOI
The plasma–sheath boundary region
TL;DR: In this article, a broad coverage of the problem of joining plasma and sheath over a wide range of physical conditions is given, where the authors go back to the earliest works to understand what those who introduced the various terms associated with the structure of the plasma-sheath had in mind.
Journal ArticleDOI
Kinetic analysis of the collisional plasma?sheath transition
TL;DR: In this paper, it was shown that there is no need and no justification for a modification of the Bohm criterion for finite λD, where λ is the electron Debye length and λ the ion mean free path.
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Tailored ion energy distributions on plasma electrodes
TL;DR: In this article, the authors review the fundamentals of ion energy distribution in the sheath and methods to control the IED on plasma electrodes, including the application of "tailored" voltage waveforms on an electrode in continuous wave plasmas.
Journal ArticleDOI
An experimental and theoretical investigation of a magnetically confined dc plasma discharge
Maurizio Rondanini,Carlo Cavallotti,D. Ricci,Daniel Chrastina,Giovanni Isella,Tamara Moiseev,Hans von Känel +6 more
TL;DR: In this article, a magnetically confined dc plasma discharge sustained by a thermionic source was investigated using a combined experimental and theoretical approach, where the discharge originates in an arc plasma source and is expanded in a cylindrical chamber, where it is stabilized by an annular anode.