Filamentary Collapse in Electron-Beam Plasmas

Observations of a form of three-dimensional turbulence, which occurs in beam-plasma interactions, are described. Large amplitude, beam driven instabilities in both the oblique electron plasma and electron-cyclotron modes are shown to collapse into thin, magnetic field aligned filaments, and to exhib...

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Bibliographic Details
Published in:Physical review letters 1981-05, Vol.46 (20), p.1333-1337
Main Authors: Christiansen, P. J., Jain, V. K., Stenflo, L.
Format: Article
Language:English
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Summary:Observations of a form of three-dimensional turbulence, which occurs in beam-plasma interactions, are described. Large amplitude, beam driven instabilities in both the oblique electron plasma and electron-cyclotron modes are shown to collapse into thin, magnetic field aligned filaments, and to exhibit a variety of modulation time scales characteristic of both electron and ion modes in the system. On the largest time scales, associated density depletions are observed.
ISSN:0031-9007
DOI:10.1103/PhysRevLett.46.1333