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

Technical Report · Tue Oct 01 00:00:00 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 Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
• Sponsoring Organization: USDOE; 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
TOKAMAK DEVICES
LOWER HYBRID HEATING
NON-INDUCTIVE CURRENT DRIVE
ALPHA PARTICLES
DIFFUSION
FOKKER-PLANCK EQUATION
WAVE PROPAGATION
CHARGED PARTICLES
CLOSED PLASMA DEVICES
DIFFERENTIAL EQUATIONS
EQUATIONS
HEATING
HIGH-FREQUENCY HEATING
PARTIAL DIFFERENTIAL EQUATIONS
PLASMA HEATING
THERMONUCLEAR DEVICES
700101* - Fusion Energy- Plasma Research- Confinement
Heating
& Production
700108 - Fusion Energy- Plasma Research- Wave Phenomena
700103 - Fusion Energy- Plasma Research- Kinetics