Theory of electron energy confinement in tokamaks

Journal Article · Tue May 01 04:00:00 EDT 1979 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.862690· OSTI ID:6306937

Manheimer, W M; Antonsen, Jr, T M

A one-dimensional thermal transport code has been employed to study electron energy confinement in tokamaks. At each time step of the computations, each point in the profile is examined to determine whether it is linearly stable to either the dissipative trapped electron mode or the internal kink and tearing modes. If the point is determined to be unstable, an anomalously large electron thermal conductivity is turned on in the vicinity of that point. The electron temperature profile is found to relax to a marginally stable state. Our code predicts the scaling of confinement time with density in Alcator, and the scaling of temperature half-width with q (a) in Tokamak Fontenay aux Roses.

• Research Organization: Naval Research Laboratory, Washington, D. C. 20375
• OSTI ID: 6306937
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 22:5; 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
700107 -- Fusion Energy-- Plasma Research-- Instabilities
CEA
CEA FONTENAY-AUX-ROSES
CLOSED PLASMA DEVICES
COMPUTER CODES
DISPERSION RELATIONS
ELECTRON TEMPERATURE
ELECTRONS
ELEMENTARY PARTICLES
ENERGY CONSERVATION
ENERGY TRANSPORT
FERMIONS
FLUCTUATIONS
FRENCH ORGANIZATIONS
INSTABILITY
KINK INSTABILITY
LEPTONS
NATIONAL ORGANIZATIONS
ONE-DIMENSIONAL CALCULATIONS
PHYSICAL PROPERTIES
PLASMA DENSITY
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
TEARING INSTABILITY
THERMAL CONDUCTIVITY
THERMODYNAMIC PROPERTIES
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TRAPPED-PARTICLE INSTABILITY
VARIATIONS