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Author Zhou, C. T. ♦ He, X. T. ♦ Chew, L. Y.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PLASMA PHYSICS AND FUSION TECHNOLOGY ♦ BEAM CURRENTS ♦ BEAM-PLASMA SYSTEMS ♦ CHARGED-PARTICLE TRANSPORT ♦ ELECTRIC CURRENTS ♦ ELECTRIC FIELDS ♦ ELECTRON BEAMS ♦ FIBERS ♦ JOULE HEATING ♦ LAYERS ♦ MAGNETIC FIELDS ♦ MAGNETOHYDRODYNAMICS ♦ OSCILLATIONS ♦ PLASMA ♦ SURFACES ♦ TAIL ELECTRONS ♦ BEAMS ♦ CURRENTS ♦ ELECTRIC HEATING ♦ ELECTRONS ♦ ELEMENTARY PARTICLES ♦ FERMIONS ♦ FLUID MECHANICS ♦ HEATING ♦ HYDRODYNAMICS ♦ LEPTON BEAMS ♦ LEPTONS ♦ MECHANICS ♦ PARTICLE BEAMS ♦ PLASMA HEATING ♦ RADIATION TRANSPORT
Abstract Transport of energetic electrons in a hollow plasma fiber is investigated. The high-current electron beam induces in the fiber strong radial electric fields and azimuthal magnetic fields on the inner and outer surfaces of the hollow fiber. The hot electrons are pushed out by the surface magnetic field and returned into the fiber by the sheath electric field. Imbalance of the latter fields can drive chaotic oscillations of electrons around the fiber wall. Intense thin return-current layers inside both the inner and outer wall surfaces are observed. This enhances local joule heating around both surfaces by the return current.
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 2010-08-02
Publisher Place United States
Journal Applied Physics Letters
Volume Number 97
Issue Number 5


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