Effect of trapped energetic particles on the resistive wall mode.

نویسندگان

  • G Z Hao
  • A K Wang
  • Y Q Liu
  • X M Qiu
چکیده

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.

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عنوان ژورنال:
  • Physical review letters

دوره 107 1  شماره 

صفحات  -

تاریخ انتشار 2011