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Title: Gyrokinetic particle-in-cell simulations of Alfvén eigenmodes in presence of continuum effects

First-principle gyrokinetic particle-in-cell simulations of a global Toroidal Alfvén Eigenmode (TAE) are undertaken in the presence of a strong coupling with the continuum. Effects of the bulk plasma temperature on the interplay between the TAE and Kinetic Alfvén Waves (KAWs) are investigated. A global TAE-KAW structure is identified which appears to be more unstable with respect to the fast ions than a simple (fluid-like) TAE mode.
Authors:
;  [1] ;  [2]
  1. Max Planck Institute for Plasma Physics, D-17491 Greifswald (Germany)
  2. Max Planck Institute for Plasma Physics, D-85748 Garching (Germany)
Publication Date:
OSTI Identifier:
22300143
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 5; Other Information: (c) 2014 EURATOM; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ELECTRON TEMPERATURE; ION TEMPERATURE; IONS; SIMULATION