Published July 28, 2006
| Version v1
Journal article
Three-Wave Interactions between Fast-Ion Modes in the National Spherical Torus Experiment
Creators
- 1. Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543-0451 (United States)
- 2. University of California, Los Angeles, California 90095-7099 (United States)
Description
Simultaneous bursts of energetic particle mode (EPM) and toroidicity-induced Alfven eigenmode (TAE) activity that correlate with significant fast-ion loss are observed in beam heated plasmas. Three-wave interactions between these modes are conclusively identified, indicating fixed phase relationships. This nonlinear coupling concentrates the energy of the TAEs into a toroidally localized perturbation frozen in the frame of a rigid, toroidally rotating structure formed by the EPMs. This redistribution of energy is significant because it will modify the effect of the TAEs on fast-ion loss
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 97
- Journal Issue
- 4
- Journal Page Range
- p. 045002-045002.4
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38023537
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- COUPLING; IONS; NONLINEAR PROBLEMS; PLASMA; SPHERICAL CONFIGURATION
- Descriptors DEC
- CHARGED PARTICLES; CONFIGURATION
Optional Information
- Notes
- (c) 2006 The American Physical Society