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Measurements during deuterium-tritium (D-T) experiments in the Joint European Torus (JET) have revealed, for the first time, ion cyclotron emission (ICE) excited by collective instability of fusion alpha-particles in plasmas with strong ion cyclotron resonance heating. ICE excited by fusion alpha-particles has also been observed in JET plasmas with pure T neutral beam injection (NBI). These data test several aspects of alpha-particle confinement physics. ICE spectra from discharges with power NBI also show evidence of ion hybrid wave excitation by beam ions, relevant to alpha-channelling.

Additional information

Authors: COTRELL G A, JET Joint Undertaking, Abingdon (GB);DENDY R O, EURATOM Fusion Association, Abingdon (GB);HUNT R, EURATOM Fusion Association, Abingdon (GB);MCCLEMENTS K G, EURATOM Fusion Association, Abingdon (GB)
Bibliographic Reference: Article: JET-P(98)73
Record Number: 199910832 / Last updated on: 1999-06-11
Original language: en
Available languages: en