摘要
A low-frequency(f<2 kHz)potential structure(LFPS)is observed in a linear magnetic plasma device using Langmuir probe arrays.The center frequency of this structure is near zero.This structure has azimuthal and axial symmetries while with a finite radial wavenumber.The complete 3D spectra features of this structure have been identified to have the characteristics expected for zonal flows.
基金
Supported by the National Natural Science Foundation of China under Grant Nos 10875124 and 10605025
the National Basic Research Program of China under Grant No 2008CB717800
Research Fund for the Doctoral Program of Higher Education of China under Grant No 20060358059
the ITER domestic program of China under Grant No 2010GB107000
the Knowledge Innovation Program of Chinese Academy of Sciences under Grant No kjcx-yw-n28.
