Title :
Plasma diffusion through multidipole magnetic fields
Author_Institution :
Lab. Associado de Plasma, Inst. Nacional de Pesquisas Espaciais, Sao Paulo, Brazil
fDate :
12/1/1992 12:00:00 AM
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;
Journal_Title :
Plasma Science, IEEE Transactions on
