The interaction of energetic alpha-particles with intense lower hybrid waves

Technical Report · Mon Jun 01 00:00:00 EDT 1992

DOI:https://doi.org/10.2172/5067875· OSTI ID:5067875

Fisch, N J; Rax, J M

Lower hybrid waves are a demonstrated, continuous means of driving toroidal current in a tokamak. When these waves propagate in a tokamak fusion reactor, in which there are energetic {alpha}- particles, there are conditions under which the {alpha}-particles do not appreciably damp, and may even amplify, the wave, thereby enhancing the current-drive effect. Waves traveling in one poloidal direction, in addition to being directed in one toroidal direction, are shown to be the most efficient drivers of current in the presence of the energetic {alpha}-particles.

• 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: 5067875
• Report Number(s): PPPL-2846; ON: DE92016805
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
LOWER HYBRID HEATING
ALPHA PARTICLES
TOKAMAK DEVICES
DIFFUSION
TRAVELLING WAVES
WAVE PROPAGATION
CHARGED PARTICLES
CLOSED PLASMA DEVICES
HEATING
HIGH-FREQUENCY HEATING
PLASMA HEATING
THERMONUCLEAR DEVICES
700350* - Plasma Production
Heating
Current Drive
& Interactions- (1992-)
700340 - Plasma Waves
Oscillations
& Instabilities- (1992-)