Ion Cyclotron Emission from JET D-T Plasmas

K. G. McClements; C. Hunt; R. O. Dendy; G. A. Cottrell

doi:10.1103/PhysRevLett.82.2099

Ion Cyclotron Emission from JET D-T Plasmas

K. G. McClements, C. Hunt, R. O. Dendy, and G. A. Cottrell

Phys. Rev. Lett. 82, 2099 – Published 8 March 1999

Abstract

Ion cyclotron emission (ICE) excited by collective instability of fusion $α$ particles has been observed during deuterium-tritium experiments with radio-frequency heating and neutral beam injection (NBI) in the Joint European Torus. A model based on classical $α$ -particle confinement is broadly consistent with this data. ICE spectra from discharges with high-power NBI also show evidence of ion hybrid wave excitation by beam ions, relevant to $α$ channeling.