Intense-Heavy-Ion-Beam Transport through an Insulator Beam Guide.

  • Kikuchi Takashi
    Department of Electrical Engineering, Nagaoka University of Technology, Kamitomioka, Nagaoka 940–2188, Japan
  • Kawata Shigeo
    Department of Electrical Engineering, Nagaoka University of Technology, Kamitomioka, Nagaoka 940–2188, Japan
  • Kato Shigeru
    Nissin Electric Co., Ltd., Ukyo–ku, Kyoto 615–8686, Japan
  • Hanamori Susumu
    Department of Electrical Engineering, Nagaoka University of Technology, Kamitomioka, Nagaoka 940–2188, Japan
  • Yazawa Masaru
    Department of Electrical Engineering, Nagaoka University of Technology, Kamitomioka, Nagaoka 940–2188, Japan

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In this study, we investigate an intense-heavy-ion-beam transport through an insulator beam guide by numerical simulation. In our previous papers [Jpn. J. Appl. Phys. 35 (1996) L1127, Jpn. J. Appl. Phys. 37 (1998) L471], we proposed a new system for electron and proton beam transport using an insulator beam guide. We apply this system to a singly charged cesium (Cs+) ion beam transport. An intense Cs+ ion beam generates a plasma on the insulator surface. Electrons are extracted from the plasma, and the beam charge is effectively neutralized by the electrons. Electron extraction is self-regulated by the net space charge of the beam. Consequently, an intense Cs+ ion beam can be efficiently transported by the proposed system.

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