Effects of neutral beam injection on impurity transport in tokamaks

Journal Article · Wed Aug 01 04:00:00 EDT 1984 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.864866· OSTI ID:6854495

Sigmar, D J

A self-consistent theory is presented for particle flows in the flux surface, radial particle fluxes, and the radial electric field in a tokamak. The effects of beam-impurity momentum exchange, radial transfer of toroidal momentum, and the poloidal variation in density and potential which ensue when v/sub phi/approx. =v/sub th/ are treated: the interaction among these effects is nonlinear. Model problem predictions based on the theory indicate enhanced inward impurity transport with strong counterinjection and outward impurity transport with strong coinjection of neutral beams.

• Research Organization: Georgia Institute of Technology, Atlanta, Georgia 30332
• OSTI ID: 6854495
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 27:8; 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
ATOMIC BEAMS
BEAM INJECTION
BEAMS
CLOSED PLASMA DEVICES
COLD PLASMA
ELECTRIC FIELDS
HEATING
IMPURITIES
MAGNETIC FLUX
MOMENTUM TRANSFER
NEUTRAL ATOM BEAM INJECTION
NONLINEAR PROBLEMS
PLASMA
PLASMA DENSITY
PLASMA HEATING
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
VARIATIONS