Effect of Trapped Energetic Particles on the Resistive Wall Mode
Journal article, 2011

A stability analysis for the resistive wall mode is studied in the presence of trapped energetic particles (EPs). When the EPs’ beta exceeds a critical value, a fishbonelike bursting mode (FLM) with an external kink eigenstructure can exist. This offers the first analytic interpretation of the experimental observations [ Phys. Rev. Lett. 103 045001 (2009)]. The mode-particle resonances for the FLM and the q=1 fishbone occur in different regimes of the precession frequency of EPs. In certain ranges of the plasma rotation speed and the EPs’ beta, a mode conversion can occur between the resistive wall mode and FLM.


G. Z. Hao

A. K. Wang

X. M. Qiu

Physical Review Letters

Vol. 107 015001-

Areas of Advance



Basic sciences

Subject Categories

Fusion, Plasma and Space Physics



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