Abstract
The diocotron instability is studied in a plasma confined in between two concentric cylinders by an azimuthal magnetic field. In this geometry the perturbations are compressible while equilibrium is incompressible. The Rayleigh criterion for compressible perturbations is shown to be modified. Marginal stability curves (Im ω=0) for different mode numbers are plotted. The quasilinear evolution of this instability is associated with a mean inward motion of the plasma column (inward pinch) apart from the usual diffusion to the marginal stability.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
