Electron Bernstein wave heating in LHD

在中国核聚变科学研究院大型螺旋装置LHD的真空室中安装了一种新型反射镜，它能够高场侧注入电子回旋波，实现模式转换为电子Bernstein波。在高密度等离子体加热实验中，当等离子体中心附近的电子密度高于外加波的截止密度时，实现了等离子体中心电子温度的升高。等离子体中心的电子密度是外加77 GHz波左侧截止密度的1.6倍，等离子体中心电子温度的升高应归因于注入电子回旋波的模式转换而产生的电子伯恩斯坦波。

A new mirror which enabled high-field side injection of electron cyclotron waves for mode conversion to electron Bernstein waves was installed in the vacuum vessel of large helical device LHD of national institute of fusion science. In the high-density plasma heating experiment where the electron density around the plasma center was higher than the cut-off density of applied waves, an increase in the electron temperature at the plasma center was realized. The electron density at the plasma center was 1.6 times higher than the left-hand cut-off density of the applied 77GHz wave, then the increase in the electron temperature at the plasma center should be attributed to the electron Bernstein wave which was mode-converted from the injected electron cyclotron wave.