Current-drive by lower hybrid waves in the presence of energetic alpha-particles

Technical Report · Tue Oct 01 04:00:00 EDT 1991

DOI:https://doi.org/10.2172/5096020· OSTI ID:5096020

Fisch, N J; Rax, J M

Many experiments have now proved the effectiveness of lower hybrid waves for driving toroidal current in tokamaks. The use of these waves, however, to provide all the current in a reactor is thought to be uncertain because the waves may not penetrate the center of the more energetic reactor plasma, and, if they did, the wave power may be absorbed by alpha particles rather than by electrons. This paper explores the conditions under which lower-hybrid waves might actually drive all the current. 26 refs.

• Research Organization: Princeton Univ., NJ (United States). Plasma Physics Lab.
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 5096020
• Report Number(s): PPPL-2786; ON: DE92001940
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
700103 -- Fusion Energy-- Plasma Research-- Kinetics
700108 -- Fusion Energy-- Plasma Research-- Wave Phenomena
ALPHA PARTICLES
CHARGED PARTICLES
CLOSED PLASMA DEVICES
DIFFERENTIAL EQUATIONS
DIFFUSION
EQUATIONS
FOKKER-PLANCK EQUATION
HEATING
HIGH-FREQUENCY HEATING
LOWER HYBRID HEATING
NON-INDUCTIVE CURRENT DRIVE
PARTIAL DIFFERENTIAL EQUATIONS
PLASMA HEATING
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
WAVE PROPAGATION