Strongly Driven Frequency-Sweeping Events in Plasmas
Journal Article
·
· Physical Review Letters
- Department of Physics, University of York, Heslington, York YO10 5DD (United Kingdom)
- Institute for Fusion Studies, University of Texas, Austin, Texas 78712 (United States)
A generic model of a kinetic plasma formed from a source and sink is presented which without instability would form a strongly unstable state due to a single mode. Instead, the resulting wave-particle resonant interaction maintains the distribution near a marginally stable state through the continual production of fast frequency-sweeping modes that sweep unidirectionally (upward in our case) throughout the energy-inverted region of the distribution function. The energy of these modes can be channeled to the background plasma through wave dissipation and, in our particular example, one quarter of the injected energy is available to be channeled.
- OSTI ID:
- 20957884
- Journal Information:
- Physical Review Letters, Vol. 99, Issue 2; Other Information: DOI: 10.1103/PhysRevLett.99.025003; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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