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Open Access Publications from the University of California

Ions lost on their first orbit can impact Alfvén eigenmode stability

  • Author(s): Heidbrink, WW
  • Fu, GY
  • Van Zeeland, MA
  • et al.

Published Web Location Commons 'BY' version 4.0 license

© 2015 AIP Publishing LLC. Some neutral-beam ions are deflected onto loss orbits by Alfvén eigenmodes on their first bounce orbit. The resonance condition for these ions differs from the usual resonance condition for a confined fast ion. Estimates indicate that particles on single-pass loss orbits transfer enough energy to the wave to alter mode stability.

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