利用分段阳极控制圆柱霍尔推力器的方位角辐模
Controlling azimuthal spoke modes in cylindrical Hall thruster using a segmented anode
摘要：
方位角轮辐状模式通常发生在ExB放电。轮辐模式的自然发生与等离子体参数的变化有关。在这里，而不是让这些变化自然发生，我们报告了一种技术，通过调整阳极的边界条件，积极控制的发言。该技术证明使用圆柱形霍尔推力器配备了分段阳极。通过改变阳极段的电压和相对相位，方位角模式的性质可以被显著改变，如快速相机图像和探针诊断所示。这种技术可以扩展到其他霍尔放电，以便诱导或抑制方位角活动，从而控制设备的操作和性能。
英文摘要：
Azimuthal spoke-like modes commonly occur in ExB discharges. The natural occurrence of the spoke mode is correlated with changes of plasma parameters. Here, instead of allowing these changes to occur naturally, we report a technique for actively controlling the spoke by adjusting the boundary condition at the anode. The technique is demonstrated using a cylindrical Hall thruster equipped with a segmented anode. By varying the voltage and the relative phases of the anode segments, properties of the azimuthal mode can be altered substantially, as shown by fast camera images and probe diagnostics. This technique may be extended to other Hall discharges in order to either induce or suppress azimuthal activities, and thereby controlling the operation and the performance of the devices.
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