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

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 and E. Trask
Additional contact information
H. Y. Guo: Tri Alpha Energy
M. W. Binderbauer: Tri Alpha Energy
T. Tajima: Tri Alpha Energy
R. D. Milroy: Tri Alpha Energy
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

Nature Communications, 2015, vol. 6, issue 1, 1-6

Abstract: 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.

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms7897

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DOI: 10.1038/ncomms7897

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