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Title: Tendency of a rotating electron plasma to approach the Brillouin limit

A neutral plasma is considered to be immersed in an axial magnetic field together with a radial electric field. If the electrons are magnetized, but the ions are not magnetized, then the electrons will rotate but the ions will not rotate, leading to current generation. The currents, in turn, weaken the axial magnetic field, leading to an increase in the rotation frequency of the slow Brillouin mode. This produces a positive feedback effect, further weakening the magnetic field. The operating point thus tends to drift towards the Brillouin limit, possibly finding stability only in proximity to the limit itself. An example of this effect might be the cylindrical Hall thruster configuration.
Authors:
;  [1] ;  [2]
  1. Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543 (United States)
  2. Faculty of Sciences, H.I.T.-Holon Institute of Technology, Holon 58102 (Israel)
Publication Date:
OSTI Identifier:
22227986
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 20; Journal Issue: 7; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CYLINDRICAL CONFIGURATION; ELECTRIC FIELDS; ELECTRONS; FEEDBACK; MAGNETIC FIELDS; MAGNETOHYDRODYNAMICS; PLASMA; PLASMA DRIFT; THRUSTERS