[Table of Contents]

Plasma and Fusion Research

Volume 8, 2401034 (2013)

Regular Articles


Mechanisms of E × B Drift Rotation of a Vortex String in a Pure Electron Plasma
Yukihiro SOGA, Tetsuya MIMURA, Yasutada KATO and Youngsoo PARK
Kanazawa University, Kanazawa 920-1192, Japan
(Received 7 December 2012 / Accepted 20 February 2013 / Published 23 April 2013)

Abstract

Energy distribution of a pure electron plasma column rotating around the axis of a cylindrical vessel due to an E × B flow in a Malmberg-Penning trap is investigated. An abrupt relaxation of the energy distribution was observed in an electron string trapped for a few microseconds after injection from an electron emitter. The macroscopic E × B drift rotation of the electron column is mainly dominated by the microscopic axial energy distribution which determines the effective position of reflection at the end of the trap, that is, a radial electric field acting on the particles from an external trap potential.


Keywords

non-neutral plasma, 2D Euler fluid, vortex filament, E × B drift rotation, parallel energy analysis

DOI: 10.1585/pfr.8.2401034


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This paper may be cited as follows:

Yukihiro SOGA, Tetsuya MIMURA, Yasutada KATO and Youngsoo PARK, Plasma Fusion Res. 8, 2401034 (2013).