Toroidal symmetry of the geodesic acoustic mode zonal flow in a tokamak plasma.
作者： K. J. Zhao , T. Lan , J. Q. Dong , L. W. Yan , W. Y. Hong
DOI: 10.1103/PHYSREVLETT.96.255004
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摘要: The toroidal symmetry of the geodesic acoustic mode (GAM) zonal flows is identified with toroidally distributed three step Langmuir probes at edge HuanLiuqi-2A (commonly referred to as HL-2A) tokamak plasmas for first time. High coherence both GAM and ambient turbulence displaced measurements along a magnetic field line observed, in contrast high but low when are not same line. radial poloidal features also simultaneously determined. nonlinear wave coupling between frequency turbulent fluctuations demonstrated be plausible formation mechanism flows.
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