Nonlinear Splitting of Fast Particle Driven Waves in a Plasma: Observation and Theory
The measured spectra of fast particle driven Alfv{acute e}n eigenmodes in the JET tokamak plasma are interpreted on the basis of a nonlinear model of near-threshold kinetic instabilities. The observed mode splitting is a manifestation of the general nonlinear phenomena due to the combination of reso...
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| Veröffentlicht in: | Physical Review Letters 1998-12, Vol.81 (25), p.5564-5567 |
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| container_title | Physical Review Letters |
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| creator | Fasoli, A. Breizman, B. N. Borba, D. Heeter, R. F. Pekker, M. S. Sharapov, S. E. |
| description | The measured spectra of fast particle driven Alfv{acute e}n eigenmodes in the JET tokamak plasma are interpreted on the basis of a nonlinear model of near-threshold kinetic instabilities. The observed mode splitting is a manifestation of the general nonlinear phenomena due to the combination of resonant wave-particle interaction and collisionlike relaxation of the resonant particles. The instability growth rate and the effective collision frequency of the resonant particles are determined. {copyright} {ital 1998} {ital The American Physical Society } |
| doi_str_mv | 10.1103/PhysRevLett.81.5564 |
| format | Article |
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| ispartof | Physical Review Letters, 1998-12, Vol.81 (25), p.5564-5567 |
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| language | eng |
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| source | American Physical Society Journals |
| subjects | 70 PLASMA PHYSICS AND FUSION ALFVEN WAVES EIGENSTATES INSTABILITY GROWTH RATES PLASMA INSTABILITY PLASMA SIMULATION TOKAMAK DEVICES |
| title | Nonlinear Splitting of Fast Particle Driven Waves in a Plasma: Observation and Theory |
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