Tokamak error fields and locked modes
作者： A. Reiman , D. Monticello
DOI: 10.1063/1.859640
关键词: Physics 、 Perturbation (astronomy) 、 Quantum electrodynamics 、 Computer simulation 、 Tearing 、 Mathematical model 、 Condensed matter physics 、 Tokamak 、 Plasma 、 Magnetic field 、 Instability
摘要: The effects of externally applied, resonant magnetic field perturbations on tokamak plasmas are discussed. An analytical model assuming ordering and narrow islands clarifies the conditions under which error fields amplified or diminished by self‐consistent effects. A strong amplification near marginal tearing stability is found to broaden range parameters over deleterious seen. Three‐dimensional numerical solutions indicate that saturated mode island widths can be sensitive presence small nonaxisymmetric perturbations. It argued theoretical conclusions consistent with observations in compensation experiments, also enhanced growth for locked modes.
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