IONIZATION MECHANISM AND EXCITATION TRANSFER IN THE PLASMA STREAM NEUTRAL GAS CLOUD INTERACTION

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  • Kubo Haruya
    Institute of Space and Aeronautical Science, University of Tokyo
  • Kawashima Nobuki
    Institute of Space and Aeronautical Science, University of Tokyo
  • Itoh Tomizo
    Institute of Space and Aeronautical Science, University of Tokyo

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Other Title
  • プラズマ流と中性ガス塊の相互作用に於ける電離機構とExcitation Transfer
  • プラズマリュウ ト チュウセイ ガスカイ ノ ソウゴ サヨウ ニ オケル デンリ キコウ ト Excitation transfer

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Abstract

Ionization phenomena in a spatilly isolated neutral gas clod interacting with a gun-produced plasma stream was studied using an optical spectrometer, a Kerr cell camera and an image converter camera. Helium gas cloud is ionized by hydrogen or helium plasma stream, but not ionized by nitrogen or argon plasma stream. It is revealed that a neutral gas cloud is ionized by electrons heated in a shock wave created in the mutual gas cloud-plasma stream interaction. Observing H in the interaction of hydrogen plasma stream with various gas clouds, the intensity of H is the strongest when hydrogen plasma stream interacts with helium gas cloud. This is explained by excitation transfer.

Journal

  • Kakuyūgō kenkyū

    Kakuyūgō kenkyū 27 (4), 243-251, 1972

    The Japan Society of Plasma Science and Nuclear Fusion Research

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