Propagation of energetic electrons in a hollow plasma fiber

Journal Article · Mon Aug 02 00:00:00 EDT 2010 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3475414· OSTI ID:21466882

Zhou, C T; He, X T ^[1]; Chew, L Y ^[2]

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1. Institute of Applied Physics and Computational Mathematics, Beijing 100094 (China)
2. Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Nanyang Avenue, Singapore 639798 (Singapore)

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.

• OSTI ID: 21466882
• Journal Information: Applied Physics Letters, Vol. 97, Issue 5; Other Information: DOI: 10.1063/1.3475414; (c) 2010 American Institute of Physics; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

70 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