A rotating spoke has been observed on a cylindrical Hall thruster with a cusp-shaped magnetic field. The spoke rotates with a velocity near 2 km/s in the ExB direction. The crossfield electron transport induced by the spoke has been directly measured for the first time using a segmented anode. Approximately 50% of the total current is found to pass through the spoke. The cross-field transport mechanism has been explored using emissive probe measurements of the fluctuating potential. The findings reveal a perturbed electric field which enhances electron transport across the field.
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机译：在具有尖峰形磁场的圆柱形霍尔推力器上观察到旋转的辐条。辐条在ExB方向上以接近2 km / s的速度旋转。首次使用分段阳极直接测量了由辐条引起的交叉场电子传输。发现总电流的大约50％通过辐条。跨场传输机制已使用波动势的发射探针测量进行了探索。这些发现揭示了一个扰动的电场，该电场增强了电子在整个电场中的传输。
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