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- Title
Broadband Instability of the Whistler Band in a Magnetized Plasma Density Depletion with a Parallel Current.
- Authors
Zudin, I. Yu.; Gushchin, M. E.; Aidakina, N. A.; Korobkov, S. V.; Strikovskiy, A. V.
- Abstract
Broadband electromagnetic instability has been detected in a current-carrying depletion of the density of a magnetized laboratory plasma formed by an electrode with a high positive potential. Intense noise with a continuous frequency spectrum is excited in the whistler band below the electron gyrofrequency. This instability is current-driven because noise exists only when an electric current flows in the plasma; noise disappears when the current is interrupted. Broadband signals observed in the laboratory are close in some properties to electromagnetic noise detected in natural density depletions of the high-latitude ionosphere and magnetosphere of the Earth.
- Subjects
PLASMA density; PLASMA electrodes; ELECTROMAGNETIC noise; ELECTRIC currents; PLASMA flow
- Publication
JETP Letters, 2021, Vol 113, Issue 2, p86
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364021020119