Some properties of rotating coherent structures in a non-neutral plasma column

Journal Article · Fri Jul 01 00:00:00 EDT 1994 · Physics of Plasmas; (United States)

DOI:https://doi.org/10.1063/1.870568· OSTI ID:6690756

Aly, J J ^[1]

---

1. CEA, Service d'Astrophysique, CE Saclay, 91191 Gif sur Yvette Cedex (France)

Coherent structures rotating at the angular velocity [omega] in a two-dimensional pure electron plasma confined inside a conducting grounded cylinder are considered. These structures are described by a streamfunction [psi], obeying a nonlinear boundary value problem. It is shown, in particular, that (i) this problem has a minimal cylindrically symmetric solution if it has a solution at all. (ii) For a nonsymmetric solution, 2[omega] is necessarily comprised between the minimum and maximum values taken by the local diocotron frequency in the cylinder. (iii) Bifurcation of a symmetric radially decreasing solution to a nonsymmetric one can occur only when 2[omega] is equal to the mean diocotron frequency.

• OSTI ID: 6690756
• Journal Information: Physics of Plasmas; (United States), Vol. 1:7; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ELECTRON GAS
ROTATION
ANGULAR VELOCITY
BOUNDARY-VALUE PROBLEMS
COLD PLASMA
CYLINDERS
ELECTROSTATICS
ROTATING PLASMA
FLUIDS
GASES
MOTION
PLASMA
VELOCITY
700390* - Other Plasma Physics Studies- (1992-)