Interaction of energetic alpha particles with intense lower hybrid waves

Journal Article · Mon Jul 27 04:00:00 EDT 1992 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.69.612· OSTI ID:7105029

Fisch, N J; Rax, J ^[1]

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1. Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543 (United States)

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.

• DOE Contract Number: AC02-76CH03073
• OSTI ID: 7105029
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 69:4; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700350* -- Plasma Production
Heating
Current Drive
& Interactions-- (1992-)
ALPHA PARTICLES
ANNULAR SPACE
CHARGED PARTICLES
CLOSED CONFIGURATIONS
CLOSED PLASMA DEVICES
CONFIGURATION
CURRENT-DRIVE HEATING
DATA
ELECTRIC HEATING
ENERGY TRANSFER
ENERGY-LEVEL TRANSITIONS
EXCITATION
FUNCTIONS
GREEN FUNCTION
HEATING
HIGH-FREQUENCY HEATING
INFORMATION
JOULE HEATING
LOWER HYBRID HEATING
MAGNETIC FIELD CONFIGURATIONS
NUMERICAL DATA
PLASMA
PLASMA HEATING
RESISTANCE HEATING
SPACE
STEADY-STATE CONDITIONS
THEORETICAL DATA
THERMONUCLEAR DEVICES
THERMONUCLEAR REACTORS
TOKAMAK DEVICES
TOROIDAL CONFIGURATION