レーザによる放電トリガ効果

書誌事項

タイトル別名
  • Laser Trigger Effect on Induced Electrical Discharge
  • レーザ ニ ヨル ホウデン トリガ コウカ

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抄録

The basic characteristics of both laser triggered and guided discharges have been studied by many researchers. In this paper, a 3.5J CO2 laser is transmitted into a rod-to-plane gap which is do electrically stressed. Trigger and guide effects of the discharge are usually observed simultaneously in the gap. However, in this study only the trigger effect is observed under some conditions. In this case, the electrical breakdown of the gap is triggered by the irradiation of laser but the breakdown path is not guided by the laser beam. The delay time between the irradiation of laser and the breakdown of the gap induced by the trigger effect varies from several hundreds μs to a few ms. The trigger effect can be caused mainly due to the drift of negative ions produced in a laser-induced plasma.

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