実験室プラズマによる帯電実験

概要

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In order to clarify the charging properties of metal surface in plasma, the plasma are produced by double plasma device set up in a vacuum chamber. One of the properties of the plasma, such as a floating potential due to the plasma charging on the surface of Langmuir probe is experimentally examined. The result shows that the floating potential is not dependent on the thermal electrons of the plasma but on the non-thermal energetic electrons accelerated by the space potential difference between the source and the target. This property of plasma also depends on the direction of the probe surface against the streaming plasma, namely being rather more significantly exhibited in the surface perpendicular than parallel to the direction of the induced electric field in the plasma.
東海大学の論文