Abstract:

The magnetoelectric heating system had been introduced on a non-symmetric magnetic mirror field ECR plasma apparatus. The effects of radius of electrical ring, axial position of the ring and double electrical ring on the ion temperatures had been studied. The results indicated that a suitable radius of electrical ring could improve ion temperature effectively and the optimal size of electrical ring depended on the cyclotron radius of ions mainly. The axial location of electrical ring was dependent on configuration of magnetic mirror field. It was the most advantageous to improve ion temperatures when electrical ring was set at a region where it had a weaker magnetic field strength in the middle of magnetic mirror field. Double electrical ring could further improve the ion temperature and the ion temperature was increased twice as the one of the single ring after heating.

Key words: Magnetoelectric heating, ECR plasma, Magnetic mirror field, Ion temperature

摘要：

在非对称磁镜场微波ECR等离子体中引入了磁电加热系统，研究了电极环大小、轴向位置以及双环加热对离子温度的影响。结果表明，大小合适的电极环能有效提高离子的加热温度，且最优电极环尺寸主要取决于离子回旋半径。电极环轴向位置的选择主要与磁镜场位形有关，将电极环置于磁镜场中部的弱磁场位置时最有利于离子温度的提高。采用双电极环加热能进一步提高离子温度，并且其加热效果是单环加热的两倍。

关键词: 磁电加热, ECR等离子体, 磁镜场, 离子温度