Side-Extraction-Type Secondary Emission Electron Gun Using Wire Ion Plasma Source
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概要
- 論文の詳細を見る
A secondary emission electron gun applicable for gas treatment was designed, fabricated and tested. The gun is set beside an ion source, which is called a wire ion plasma source (WIPS). Ions extracted from WIPS are accelerated toward the cathode surface, which is set oblique to the ion loci. Secondary electrons emitted from this cathode surface by the collision of ions are then accelerated toward the electron window and form a very wide electron beam. The electron window is set orthogonal to the ion extraction window and has earth potential. In order to inject the electron beam perpendicular to the electron window, the ion and electron trajectories were numerically simulated for several conditions. A wide electron-beam current distribution was observed inside the gas treatment chamber when a honeycomb board and an Al film were placed at the electron window. The electron-beam current density of 6.4 mA/cm2 measured at the cathode voltage of 80 kV possesses sufficient energy to irradiate gaseous pollutants such as NOx.
- Publication Office, Japanese Journal of Applied Physics, Faculty of Science, University of Tokyoの論文
- 2001-02-28
著者
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Watanabe Masato
Department Of Energy Sciences Tokyo Institute Of Technology
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Chalise Priya
Department Of Energy Sciences Tokyo Institute Of Technology
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Hotta Eiki
Department Of Electrical And Electronic Engineering Faculty Of Engineering Tokyo Institute Of Techno
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Ko Kwang-cheol
Department Of Electrical And Computer Engineering Hanyang University
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Ishikawa Masaki
Department Of Energy Sciences Tokyo Institute Of Technology
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Okino Akitoshi
Department of Electrical and Electronic Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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Ko Kwang-Cheol
Department of Electrical and Computer Engineering, Hanyang University, Seongdong-ku, Seoul 133-791, Korea
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Chalise Priya
Department of Energy Sciences, Tokyo Institute of Technology, Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
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ISHIKAWA Masaki
Department of Diagnostic Radiology, Division of Medical Intelligence and Informatics, Hiroshima University
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