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Achieving a long-lived high-beta plasma state by energetic beam injection

Author

Listed:
  • H. Y. Guo

    (Tri Alpha Energy
    Present address: General Atomics, San Diego, California 92186, USA)

  • M. W. Binderbauer

    (Tri Alpha Energy)

  • T. Tajima

    (Tri Alpha Energy)

  • R. D. Milroy

    (Tri Alpha Energy
    PSI-Center, University of Washington)

  • L. C. Steinhauer

    (Tri Alpha Energy)

  • X. Yang

    (Tri Alpha Energy)

  • E. G. Garate

    (Tri Alpha Energy)

  • H. Gota

    (Tri Alpha Energy)

  • S. Korepanov

    (Tri Alpha Energy)

  • A. Necas

    (Tri Alpha Energy)

  • T. Roche

    (Tri Alpha Energy)

  • A. Smirnov

    (Tri Alpha Energy)

  • E. Trask

    (Tri Alpha Energy)

Abstract

Developing a stable plasma state with high-beta (ratio of plasma to magnetic pressures) is of critical importance for an economic magnetic fusion reactor. At the forefront of this endeavour is the field-reversed configuration. Here we demonstrate the kinetic stabilizing effect of fast ions on a disruptive magneto-hydrodynamic instability, known as a tilt mode, which poses a central obstacle to further field-reversed configuration development, by energetic beam injection. This technique, combined with the synergistic effect of active plasma boundary control, enables a fully stable ultra-high-beta (approaching 100%) plasma with a long lifetime.

Suggested Citation

  • H. Y. Guo & M. W. Binderbauer & T. Tajima & R. D. Milroy & L. C. Steinhauer & X. Yang & E. G. Garate & H. Gota & S. Korepanov & A. Necas & T. Roche & A. Smirnov & E. Trask, 2015. "Achieving a long-lived high-beta plasma state by energetic beam injection," Nature Communications, Nature, vol. 6(1), pages 1-6, November.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms7897
    DOI: 10.1038/ncomms7897
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    Cited by:

    1. Alessandro Lampasi & Giuseppe Maffia & Franco Alladio & Luca Boncagni & Federica Causa & Edmondo Giovannozzi & Luigi Andrea Grosso & Alessandro Mancuso & Paolo Micozzi & Valerio Piergotti & Giuliano R, 2016. "Progress of the Plasma Centerpost for the PROTO-SPHERA Spherical Tokamak," Energies, MDPI, vol. 9(7), pages 1-24, June.

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