title: Convective and diffusive energetic particle losses induced by shear Alfvén waves in the ASDEX upgrade tokamak.
abstract: We present here the first phase-space characterization of convective and diffusive energetic particle losses induced by shear Alfvén waves in a magnetically confined fusion plasma. While single toroidal Alfvén eigenmodes (TAE) and Alfvén cascades (AC) eject resonant fast ions in a convective process, an overlapping of AC and TAE spatial structures leads to a large fast-ion diffusion and loss. Diffusive fast-ion losses have been observed with a single TAE above a certain threshold in the fluctuation amplitude.
authors.affiliation: Max-Planck-Institut für Plasmaphysik, EURATOM Association Boltzmannstrasse 2, D-85748 Garching, Germany. Manuel.Garcia-Munoz@ipp.mpg.de
authors.forename: M
authors.initials: M
authors.lastname: García-Muñoz
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authors.initials: N
authors.lastname: Hicks
authors.forename: R
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authors.lastname: van Voornveld
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authors.lastname: Classen
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authors.lastname: Bilato
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authors.lastname: Bobkov
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authors.lastname: Bruedgam
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authors.lastname: Fahrbach
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authors.lastname: Igochine
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authors.lastname: Jaemsae
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authors.initials: M
authors.lastname: Maraschek
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authors.lastname: Sassenberg