HT-6B托卡马克参数下低杂波驱动电流的密度窗口

在简晰的物理模型下,采用数值方法,研究了HT-6B托卡马克参数下的低杂波射线轨迹,波谱移动,功率吸收和驱动电流分布。结果表明,存在着驱动电流的密度窗口,即仅在一定的等离子体密度范围内才能驱动电流(通常在理论和实验上仅注意到驱动电流的密度上限)。文中对这种密度窗口的存在给予了物理解释,并进而讨论了影响驱动电流效率的主要因素。 关键词：

DENSITY WINDOW FOR CURRENT DRIVE OF LOWER HYBRID WAVE ON HT-6B TOKAMAK

By considering the lower hybrid wave trajectory,spectrum variation and power deposition in HT-6B tokamak plasma,we calculated the currents driven with different plasma density. The results show that there exists a density window for lower hybrid wave current drive (LHCD) ,i. e ,LHCD would be achieved only within a certain range of plasma density. The ex-planation of such a density window is given and the parameters option is also discussed.