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

Technical Report · Mon Jun 01 04:00:00 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 Univ., NJ (United States). Plasma Physics Lab.
• Sponsoring Organization: DOE; 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
700340 -- Plasma Waves
Oscillations
& Instabilities-- (1992-)
700350* -- Plasma Production
Heating
Current Drive
& Interactions-- (1992-)
ALPHA PARTICLES
CHARGED PARTICLES
CLOSED PLASMA DEVICES
DIFFUSION
HEATING
HIGH-FREQUENCY HEATING
LOWER HYBRID HEATING
PLASMA HEATING
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TRAVELLING WAVES
WAVE PROPAGATION