Published December 2004
| Version v1
Journal article
On the stabilization of fast magnetoacoustic waves by toroidally trapped energetic ions
- 1. Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, New Jersey 08543 (United States)
- 2. Institute for Nuclear Research, Prospect Nauky 47, Kyiv 03680 (Ukraine)
Description
A theory of the trapped-particle-driven fast magnetoacoustic instability with the frequency below the ion gyrofrequency in toroidal plasmas is developed. It is shown that the l=0 resonance (where l is the number of the cyclotron harmonic), which was ignored in previous theories, typically has a strong stabilizing influence on the instability. It is concluded that the fast magnetoacoustic instability observed in the National Spherical Torus Experiment [E. Fredrickson, N. N. Gorelenkev, C. Z. Cheng et al., Phys. Rev. Lett. 87, 145001 (2001)] is caused by the circulating energetic ions only
Additional details
Identifiers
- DOI
- 10.1063/1.1809121;
Publishing Information
- Journal Title
- Physics of Plasmas
- Journal Volume
- 11
- Journal Issue
- 12
- Journal Page Range
- p. 5409-5412
- ISSN
- 1070-664X
- CODEN
- PHPAEN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36084924
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- FAST MAGNETOACOUSTIC WAVES; PLASMA CONFINEMENT; STABILIZATION; TAIL IONS; TRAPPED-PARTICLE INSTABILITY
- Descriptors DEC
- CHARGED PARTICLES; CONFINEMENT; HYDROMAGNETIC WAVES; INSTABILITY; IONS; MAGNETOACOUSTIC WAVES; PLASMA INSTABILITY; PLASMA MACROINSTABILITIES
Optional Information
- Notes
- (c) 2004 American Institute of Physics