1 Introduction Zonal flows (ZF) have been studied in some fusion devices. For example, geodesic acoustic mode (GAM) is observed with the frequency of fGAM - 15 kHz, poloidal mode number (m〈3) and radial wave n...1 Introduction Zonal flows (ZF) have been studied in some fusion devices. For example, geodesic acoustic mode (GAM) is observed with the frequency of fGAM - 15 kHz, poloidal mode number (m〈3) and radial wave number ( krρi -0.2) using beam emission spectroscopy at plasma edge in the D Ⅲ- D tokamak.展开更多
文摘1 Introduction Zonal flows (ZF) have been studied in some fusion devices. For example, geodesic acoustic mode (GAM) is observed with the frequency of fGAM - 15 kHz, poloidal mode number (m〈3) and radial wave number ( krρi -0.2) using beam emission spectroscopy at plasma edge in the D Ⅲ- D tokamak.