Physics of electron cyclotron resonance ion sources

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  • KUNINAKA Hitoshi
    Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency

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Other Title
  • マイクロ波放電式電子サイクロトロン共鳴型イオン源の物理
  • マイクロハ ホウデンシキ デンシ サイクロトロン キョウメイガタ イオン ゲン ノ ブツリ

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Abstract

<p>The Electric Propulsion Laboratory, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency invented and developed the microwave discharge ion engine with a clear distinction from what was done in America, Europe and Russia. This technology allowed the Hayabusa asteroid explorer to achieve a world-first round trip between Earth and an asteroid through its efficiency, durability and reliability. In parallel to the Hayabusa’s space flight, we discovered the internal phenomena of the ion source by way of a new probe technique using optical fibers, and succeeded in enhancing the thrust force. The improved ion engines are now accelerating the Hayabusa 2 asteroid explorer toward a new target. This article explains the high performance and durability of the electron cyclotron resonance microwave discharge ion source in comparison with conventional direct current discharge ion sources.</p>

Journal

  • Oyo Buturi

    Oyo Buturi 85 (7), 553-559, 2016-07-10

    The Japan Society of Applied Physics

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