Collisional diffusion of a plasma in multipolar and picket fence devices

Journal Article · Tue Feb 01 04:00:00 EST 1983 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.864139· OSTI ID:6422227

Koch, C; Matthieussent, G

A collisional diffusion model of a low-..beta.. plasma in a two-dimensional magnetic field is worked out under the assumption of joint diffusion of electrons and ions in the plane of the magnetic field. This model is applied to multidipole and picket fence discharges; density and potential profile are computed. The main features observed experimentally are in qualitative agreement with this computation: a leak width proportional to the hybrid gyroradius and the existence of potential hills between the cusps and poor plasma confinement.

• Research Organization: Laboratoire de Physique des Gaz et des Plasmas, C.N.R.S., Universite Paris-Sud, 91405 Orsay Cedex, France
• OSTI ID: 6422227
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 26:2; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
CLOSED CONFIGURATIONS
COLLISIONS
CONFINEMENT
CORRELATIONS
CUSPED GEOMETRIES
DIFFUSION
LARMOR RADIUS
LOW-BETA PLASMA
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC FIELDS
MULTIPOLAR CONFIGURATIONS
OPEN CONFIGURATIONS
PLASMA
PLASMA CONFINEMENT
PLASMA DENSITY
PLASMA SIMULATION
POTENTIALS
SIMULATION
TWO-DIMENSIONAL CALCULATIONS
USES