Abstract
The alpha particle effect on the excitation of toroidal Alfvén 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%–30% of the total drive in a D-T plasma with 3 MW of peak fusion power.
- Received 29 June 1995
DOI:https://doi.org/10.1103/PhysRevLett.76.2286
©1996 American Physical Society