First evidence of collective alpha particle effect on toroidal Alfv{acute e}n eigenmodes in the TFTR D-T experiment

Journal Article · Fri Mar 01 04:00:00 EST 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.76.2286· OSTI ID:286087

Wong, K L; Schmidt, G L; Batha, S H; Bell, R; Chang, Z; Chen, L; Darrow, D S; Duong, H H; Fu, G Y; Hammett, G W; Levinton, F; Majeski, R; Mazzucato, E; Nazikian, R; Owens, D K; Petrov, M; Rogers, J H; Schilling, G; Wilson, J R ^[1]

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1. Plasma Physics Laboratory, Princeton University, P.O. Box 451, Princeton, New Jersey 08543 (United States)

The alpha particle effect on the excitation of toroidal Alfv{acute e}n eigenmodes (TAE) was investigated in deuterium-titrium (D-T) plasmas in the Tokamak Fusion Test Reactor. rf power was used to position the plasma near the instability threshold, and the alpha particle effect was inferred from the reduction of rf power threshold for TAE instability in D-T plasmas. Initial calculations indicate that the alpha particles contribute 10{percent}{endash}30{percent} of the total drive in a D-T plasma with 3 MW of peak fusion power. {copyright} {ital 1996 The American Physical Society.}

• Research Organization: Princeton Plasma Physics Laboratory
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 286087
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 13 Vol. 76; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALFVEN WAVES
ALPHA PARTICLES
DEUTERIUM
EXCITATION
MAGNETOHYDRODYNAMICS
PLASMA INSTABILITY
POWER
TFTR TOKAMAK