Plasma diffusion through multidipole magnetic fields

Author

Ferreira, J.L.

Author_Institution

Lab. Associado de Plasma, Inst. Nacional de Pesquisas Espaciais, Sao Paulo, Brazil

Volume

20

Issue

6

fYear

1992

fDate

12/1/1992 12:00:00 AM

Firstpage

988

Lastpage

995

Abstract

The diffusion of a cold plasma through multidipole fields of a magnetic picket fence is presented. The ion diffusion and trapping are determined by electric potentials inside the multidipole fields. The electron diffusion is regulated by an anomalous transport process driven by low-frequency fluctuations inside the magnetic sheath. Particles drifting with velocities above the ion acoustic speed generate high-amplitude turbulent waves responsible for an anomalous diffusion process

Keywords

Langmuir probes; fluctuations; plasma density; plasma diagnostics; plasma sheaths; plasma temperature; plasma transport processes; plasma turbulence; anomalous transport process; cold plasma; density; diagnostics; electric potentials; electron diffusion; high-amplitude turbulent waves; ion acoustic speed; ion diffusion; ion trapping; low-frequency fluctuations; magnetic picket fence; magnetic sheath; multidipole magnetic fields; plasma diffusion; temperature; Electrons; Magnetic confinement; Magnetic fields; Magnetic separation; Plasma confinement; Plasma devices; Plasma measurements; Plasma sheaths; Plasma simulation; Plasma sources;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.199563

Filename

199563