Exponential growth of an unstable [ital l]=1 diocotron mode for a hollow electron column in a warm-fluid model
Journal Article
·
· Physics of Fluids B; (United States)
- Department of Physics and Astronomy, Brigham Young University, Provo, Utah 84602 (United States)
Numerical investigations of a warm-fluid model with an isothermal equation of state for the perpendicular dynamics of an axisymmetric, magnetically confined pure electron plasma predict an exponentially unstable, [ital l]=1, diocotron mode for hollow density profiles. The unstable mode can be identified with a stable, nonsmooth mode that exists in cold drift models but which is destabilized by finite temperature effects. The unstable mode has many properties similar to the experimental results reported by Driscoll [Phys. Rev. Lett. [bold 64], 645 (1990)].
- OSTI ID:
- 6817131
- Journal Information:
- Physics of Fluids B; (United States), Journal Name: Physics of Fluids B; (United States) Vol. 5:3; ISSN 0899-8221; ISSN PFBPEI
- Country of Publication:
- United States
- Language:
- English
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