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研究了HL 1M装置离子回旋共振频率加热实验中RF波对MHD的影响。软X射线观测结果表明 ,注入RF波会诱发锯齿。在有些放电中 ,也观察到RF波有抑制锯齿振荡和蛇形扰动的现象。RF波注入期间 ,观察到边缘等离子体密度和Dα 辐射下降 ,中心密度增加。马赫探针数据的分析和计算表明 ,RF波对等离子体的径向电场的增加和极向流速的变化有很大的影响
The effect of RF waves on MHD in ion cyclotron resonance frequency heating experiment of HL 1M device was studied. Soft X-ray observations indicate that injection of RF waves can induce jaggies. In some discharges, it is also observed that RF waves have the effect of suppressing sawtooth oscillations and serpentine perturbations. During RF injection, the edge plasma density and Dα radiation were observed to decrease and the center density increased. Analysis and calculation of the Mach probe data show that the RF wave has a great influence on the increase of the radial electric field and the change of the poloidal flow velocity