Instabilities and transport in plasmas with EXB drift

Author

Smolyakov, A. ; Romadanov, I. ; Frias, W. ; Koshkarov, A. ; Raitses, A.Y. ; Kaganovich, I.

Author_Institution

Univ. of Saskatchewan, Saskatoon, SK, Canada

fYear

2015

fDate

24-28 May 2015

Firstpage

1

Lastpage

1

Abstract

Summary form only given. Electron and ion flows coupled with plasma and magnetic field inhomogeneity result in a number of instabilities in Hall thrusters and other systems with ExB drift, such as magnetrons and Penning discharges. The interaction of plasma density and magnetic field gradients, low-hybrid, collisional, and ionization driven instabilities are investigated within the reduced nonlinear fluid model taking into account the electron inertia and gyroviscosity. A new class of instabilities is uncovered due to anisotropic counter-streaming ion flows. The resulting turbulent state and anomalous electron transport are studied with nonlinear fluid simulations.

Keywords

Penning discharges; ionisation; plasma collision processes; plasma density; plasma instability; plasma nonlinear processes; plasma transport processes; plasma turbulence; viscosity; ExB drift; Hall thrusters; Penning discharges; anisotropic counter-streaming ion flows; anomalous electron transport; collisional instabilities; electron flow; electron inertia; gyroviscosity; ion flow; ionization driven instabilities; low-hybrid instabilities; magnetic field gradients; magnetic field inhomogeneity; magnetrons; nonlinear fluid simulations; plasma density; plasma instabilities; reduced nonlinear fluid model; turbulent state; Discharges (electric); Fluids; Magnetic fields; Magnetrons; Nonhomogeneous media; Physics; Plasmas;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Sciences (ICOPS), 2015 IEEE International Conference on

Conference_Location

Antalya

Type

conf

DOI

10.1109/PLASMA.2015.7179983

Filename

7179983