Ion sound turbulence in a magnetoplasma
- 1 November 1978
- journal article
- conference paper
- Published by AIP Publishing in Physics of Fluids
- Vol. 21 (11) , 2014-2023
- https://doi.org/10.1063/1.862146
Abstract
An experimental investigation of current‐driven ion sound turbulence in a collisionless magnetized plasma column is presented. Frequency and wave vector spectrum of the saturated instability are analyzed. The cross‐power spectral density of probe signals shows that waves are localized in k space both in the electron drift direction and along the instability cone of angle ϑ=arc cos(cs/vd) ≲90°. In spite of good plasma uniformity, azimuthal asymmetries in wave propagation are noticed. The self‐consistent electron distribution function deviates from a shifted Maxwellian.Keywords
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