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

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.
Authors:
;
Publication Date:
OSTI Identifier:
5067875
Report Number(s):
PPPL-2846
ON: DE92016805
DOE Contract Number:
AC02-76CH03073
Resource Type:
Technical Report
Research Org:
Princeton Univ., NJ (United States). Plasma Physics Lab.
Sponsoring Org:
DOE; USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
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-)