Effects of electrostatic trapping on neoclassical impurity transport in a collision-dominated plasma

Journal Article · Mon Mar 01 00:00:00 EST 1982 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.863768· OSTI ID:5560138

Chang, C S; Hazeltine, R D

It has been shown by Hazeltine and Ware that the existence of a reasonable high-Z impurity species can produce electrostatic trapping and drift comparable to the magnetic effects, assuming that the main plasma components are in the plateau regime. The calculation is extended to the collisional regime, modeling the edge region of the tokamak column and significant modification to the neoclassical impurity transport coefficients is found. A fluid approach is developed and the transport coefficients are found to be nonlinear in density and temperature gradients.

• Research Organization: General Atomic Company, San Diego, California 92138
• OSTI ID: 5560138
• Journal Information: Phys. Fluids; (United States), Vol. 25:3
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COLLISIONAL PLASMA
IMPURITIES
TRANSPORT THEORY
DIFFUSION
ELECTROSTATICS
NONLINEAR PROBLEMS
TOKAMAK DEVICES
TRAPPING
CLOSED PLASMA DEVICES
PLASMA
THERMONUCLEAR DEVICES
700105* - Fusion Energy- Plasma Research- Plasma Kinetics-Theoretical- (-1987)