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- Title
Formation of nonquasineutral vortex plasma structures with a zero net current.
- Authors
Gordeev, A.
- Abstract
A nonquasineutral vortex structure with a zero net current is described that arises as a result of electron drift in crossed magnetic and electric fields, the latter being produced by charge separation on a spatial scale of about the magnetic Debye radius r B = | B|/(4π en e ). In such a structure with a radius of r ∼ r B , the magnetic field is maintained by a drift current on the order of the electron Alfvén current J Ae = m e c 3/(2 e) and can become as strong as B ≃ m e c 2/( er). Estimates show that, in a plasma with a density of n e = 1021−1023 cm−3 and with nonzero electron vorticity driven by high-power laser radiation on a time scale on the order of θ, magnetic fields with a strength of B ∼ 108−109 G are generated on micron and submicron scales. The system with closed current that is considered in the present paper can also serve as a model of hot spots in the channel of a Z-pinch.
- Subjects
PARTICLES (Nuclear physics); MAGNETIC fields; ELECTROMAGNETIC fields; ELECTRIC fields; ELECTRON beam curing; LASER beams
- Publication
Plasma Physics Reports, 2006, Vol 32, Issue 11, p921
- ISSN
1063-780X
- Publication type
Article
- DOI
10.1134/S1063780X06110067