The m/n=2/1 neoclassical tearing modes are first observed in HL-2A low density, low beta plasma with central electron cyclotron resonance heating. The neoclassical tearing modes (NTMs) are triggered by a sawtooth crash with m/n=1/1 precursors, which are toroidal coupled with a small scale m/n=2/1 mode. The time history of the island width is compared with the prediction of the NTM theory, showing a good agreement between theory and experiment.
The m/n=2/1 neoclassical tearing modes are first observed in HL-2A low density, low beta plasma with central electron cyclotron resonance heating. The neoclassical tearing modes (NTMs) are triggered by a sawtooth crash with m/n=1/1 precursors, which are toroidal coupled with a small scale m/n=2/1 mode. The time history of the island width is compared with the prediction of the NTM theory, showing a good agreement between theory and experiment.
JI Xiao-Quan;YANG Qing-Wei;LIU Yi;ZHOU Jun;FENG Bei-Bin;YUAN Bao-Shan. First Observation of Neoclassical Tearing Modes in the HL-2A Tokamak[J]. 中国物理快报, 2010, 27(6): 65202-065202.
JI Xiao-Quan, YANG Qing-Wei, LIU Yi, ZHOU Jun, FENG Bei-Bin, YUAN Bao-Shan. First Observation of Neoclassical Tearing Modes in the HL-2A Tokamak. Chin. Phys. Lett., 2010, 27(6): 65202-065202.
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