Jaun, A.Appert, K.Fasoli, A.Hellsten, T.Lister, J.Vaclavik, J.Villard, L.2008-04-162008-04-162008-04-16199710.1088/0741-3335/39/4/002https://infoscience.epfl.ch/handle/20.500.14299/21450WOS:A1997WW79100002Kinetic effects such as finite ion Larmor excursions and resonant Landau interactions are studied in the toroidicity Alfven eigenmode (TAE) range of frequencies. A new Alfven mode conversion mechanism is described taking place away from the resonances through toroidal mode coupling. It generates a group of kinetic Alfven eigenmodes (KAE) in the neighbourhood of each fluid eigenmode, with wavefields that extend throughout the plasma radius and could lead to substantial a particle losses. Comparisons carried out with measurements from the JET tokamak show that the multiple peaks observed on the response are KAE-induced in the neighbourhood of an elongation-induced Alfven eigenmode.JETtext::journal::journal article::research article