Temporal and spatial distributions of carbon shunting arc plasma

Koichi Takaki, Takumi Konishi, Ryota Mikawa, Kazunori Takahashi, Ken Yukimura

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1 Citation (Scopus)


The temporal and spatial distributions of a magnetically driven shunting arc plasma were obtained using time-resolved probe measurement. A shunting arc was produced using a carbon rod and accelerated along a pair of rail electrodes by a Lorenz force. The pulse current for driving and maintaining the plasma was supplied from a 20 μF capacitor charged by a dc power supply. Double and single probes were employed to obtain the ion density of the shunting arc plasma. An ion density of 1 × 1019m-3 was obtained at a distance of 50mm from the carbon rod 15 μs after applying voltage. The ion density decreased to 2.0 × 1018m-3 with increasing distance from 50 to 150mm. The ion density changed with the energy inputted into the plasma.

Original languageEnglish
Article number01AA04
JournalJapanese Journal of Applied Physics
Issue number1 Supplement
Publication statusPublished - 2015 Jan 1


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