Non-modal analysis of the diocotron instability for cylindrical geometry with conducting boundary

Journal Article · Thu May 15 00:00:00 EDT 2014 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4875341· OSTI ID:22252849

Mikhailenko, V. V.; Seok Kim, Jin; Jo, Younghyun; Mikhailenko, V. S. ^[1]

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1. V.N. Karazin Kharkiv National University, 61108 Kharkiv (Ukraine)

The temporal evolution of the linear diocotron instability of a cylindrical annular plasma column surrounded by a conducting boundary has been investigated by using the methodology of the cylindrical shearing modes. The linear solution of the initial and boundary-value problems is obtained which is valid for any time at which linear effects dominate. The solution reveals that the initial perturbations of the electron density pass through the stage of the non-modal evolution when the perturbation experiences spatio-temporal distortion pertinent to the considered geometry of the electron column. The result is confirmed by a two-dimensional cylindrical particle-in-cell simulation.

• OSTI ID: 22252849
• Journal Information: Physics of Plasmas, Vol. 21, Issue 5; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BOUNDARY-VALUE PROBLEMS
CYLINDRICAL CONFIGURATION
DISTURBANCES
ELECTRON DENSITY
GEOMETRY
PERTURBATION THEORY
PLASMA
PLASMA INSTABILITY
SIMULATION
TWO-DIMENSIONAL CALCULATIONS