Heating experiment of field-reversed configuration plasma by low-frequency magnetic pulse
Heating experiment of field-reversed configuration plasma by low-frequency magnetic pulse
复制标题
低频磁脉冲加热反场等离子体实验
DOI：
10.1063/1.874173
复制
发表时间：
2000
影响因子：
2.2
通讯作者：
S. Gotô
中科院分区：
文献类型：
--
作者：
K. Yamanaka;S. Yoshimura;K. Kitano;S. Okada;S. Gotô
提出了一种利用低频磁脉冲对反转位形(FRC)等离子体进行有效加热的方法和实验验证。低频磁场是由两个单圈线圈组成的天线施加的，磁场的频率低于隔离线上的离子回旋频率。同时观察到等离子体能量的增加和内部磁场的起伏。总温度和离子温度的比较表明，等离子体能量的增加主要是由于离子加热。这种起伏是由内部磁探针阵列直接观测的。对相速度沿平衡磁场的分析表明，Alfven波被激发并传播。
An effective heating method and experimental verification for a field-reversed configuration (FRC) plasma by applying the low-frequency magnetic pulse is presented. The low-frequency magnetic field is applied by an antenna that consists of two single-turn coils, and the frequency of the magnetic field is lower than the ion cyclotron frequency at the separatrix. An increase of the plasma energy and a fluctuation of the internal magnetic field are simultaneously observed. The comparison of the total temperature and the ion temperature shows that the increase of the plasma energy is mostly due to the ion heating. The fluctuation is directly observed by the internal magnetic probe arrays. The analysis of the phase velocity along the equilibrium magnetic field implies that the Alfven wave is excited and propagates.