Formation of field-reversed configuration using an in-vessel odd-parity rotating magnetic field antenna in a linear device.
Formation of field-reversed configuration using an in-vessel odd-parity rotating magnetic field antenna in a linear device.
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DOI：
10.1063/1.5047475
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发表时间：
2018-10
期刊：
影响因子：
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通讯作者：
P. Shi;Baoming Ren;Jiangshan Zheng;Xuan Sun
中科院分区：
文献类型：
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作者：
P. Shi;Baoming Ren;Jiangshan Zheng;Xuan Sun
在具有轴对称性的科达反射镜串联装置中，利用容器内奇宇称旋转磁场（RMF）天线形成场反转位形（FRC）。40厘米直径的天线由四个IGBT功率单元独立供电，每个功率单元的输出电流为1500 A，频率为84 kHz，它们的相位可调，以发射奇数或偶数奇偶校验RMF。一个中等大小的洗枪是用来产生高度电离的种子氢等离子体。在RMF的驱动下，形成了分界线半径为1.17 cm，外场为1.50 G，捕获极向通量为1.015 mWb的FRC。的形成过程的FRC证明了内部的二维探头阵列的测量，本文提出了与刚性转子模型的比较。此外，大量的环形电子电流被发现被驱动，尽管部分RMF渗透。此外，驱动电流对天线电流的依赖性的报告，并发现与RMF电流驱动模型是一致的。
A Field-Reversed Configuration (FRC) is formed by an in-vessel odd-parity rotating magnetic field (RMF) antenna in a tandem mirror device, Keda mirror with axisymmetricity. The 40-cm diameter antenna is fed independently by four IGBT-based power units with an output current of 1500 A each at 84 kHz, and their phases are adjustable to launch odd or even parity RMFs. A medium-sized washer gun is utilized to generate a highly ionized seed hydrogen plasma. Driven by RMF, the resultant FRC is formed with a separatrix radius of ∼17 cm, external field of ∼50 G, and trapped poloidal flux of ∼0.15 mWb. The formation process of FRCs is evidenced by the measurement of an array of internal two-dimensional probes; a comparison with the rigid rotor model is presented in this paper. In addition, substantial toroidal electron current is found to be driven, despite the partial RMF penetration. Moreover, the dependence of the driven current on the antenna current is reported and is found to be consistent with the RMF current driving model.