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Alpha-channeling simulation experiment in the DIII-D tokamak.

  • Author(s): Wong, KL
  • Budny, R
  • Nazikian, R
  • Petty, CC
  • Greenfield, CM
  • Heidbrink, WW
  • Ruskov, E
  • et al.
Abstract

Alfvén instabilities can reduce the central magnetic shear via redistribution of energetic ions. They can sustain a steady state internal transport barrier as demonstrated in this DIII-D tokamak experiment. Improvement in burning plasma performance based on this mechanism is discussed.

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