Effective Secondary Electron Emission Coefficient under Transient Surface Charging on Insulator in Surface Flashover Development in Vacuum

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  • 真空中沿面フラッシオーバ進展過程における絶縁物上過渡帯電存在時の実効的2次電子放出係数
  • シンクウ チュウエンメン フラッシオーバ シンテン カテイ ニ オケル ゼツエン ブツジョウ カト タイデン ソンザイジ ノ ジッコウテキ 2ジ デンシ ホウシュツ ケイスウ

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Abstract

Based on the mechanism of surface flashover development in vacuum, we have investigated that the surface flashover can be suppressed by the increase in electric field perpendicular to the insulator surface. In this study, we clarified the suppression conditions of surface flashover in terms of the transient surface charge and the effective secondary electron emission coefficient along the insulator surface.

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