Three-dimensional spatiotemporal dynamics of detached helium plasma parameters along time, radius, and magnetic field were revealed in the linear device NAGDIS-II. To measure plasma parameters before and after the radial plasma ejection that was enhanced around the volume-recombining region, the conditional averaging technique was applied. The radial ejection was found to correlate with low-frequency changes of plasma-column parameters, which seemed to suppress the axial movement of the recombining region. Moreover, an azimuthal charge separation inside the ejected structure was observed, similar to the typical edge transport phenomenon: blobby plasma transport. The neutral flow effect was suggested as a candidate of the driving force.

中文翻译：

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重组分离等离子体中跨场喷射事件的时空动力学

线性装置NAGDIS-II揭示了氦等离子体参数随时间，半径和磁场的三维时空动力学。为了测量在体积混合区域周围增强的径向等离子体喷射之前和之后的等离子体参数，应用了条件平均技术。发现径向喷射与等离子体柱参数的低频变化相关，这似乎抑制了重组区域的轴向运动。此外，在喷射结构内部观察到了方位电荷分离，类似于典型的边缘传输现象：过大的等离子体传输。建议将中性流动效应作为驱动力的候选。