Related Experiment Video
Updated: May 7, 2026

Building Langmuir Probes and Emissive Probes for Plasma Potential Measurements in Low Pressure, Low Temperature Plasmas
Published on: May 25, 2021
Sheath-induced instabilities in plasmas with E0×B0 drift
A I Smolyakov1, W Frias, I D Kaganovich
1Department of Physics and Engineering Physics, University of Saskatchewan 116 Science Place, Saskatoon, Saskatchewan S7N 5E2, Canada.
Abstract:
It is shown that ion acoustic waves in plasmas with E0×B0 electron drift become unstable due to the closure of plasma current in the chamber wall. Such unstable modes may enhance both near-wall conductivity and turbulent electron transport in plasma devices with E0×B0 electron drift and unmagnetized ions. It is shown that the instability is sensitive to the wall material: a high value of the dielectric permittivity (such as in metal walls) reduces the mode growth rate by an order of magnitude but does not eliminate the instability completely.
Related Concept Videos
Electrostatic Boundary Conditions in Dielectrics
Consider a case where both the mediums across a boundary are two different dielectric materials. Recall that the electric field and electric displacement are proportional and related through the material's permittivity.
Magnetostatic Boundary Conditions
Steady, Laminar Flow Between Parallel Plates
Electrostatic Boundary Conditions
The surface integral of an electric field is given by Gauss's law in integral form and is related to...
The Hall Effect
π Electron Effects on Chemical Shift: Overview
