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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Chalise, Priya Raj Ishikawa, Masaki Watanabe, Masato Okino, Akitoshi Ko, Kwang-cheol Hotta, Eiki |
| Copyright Year | 2000 |
| Description | Author affiliation: Department of Electrical and Computer Engineering, Hanyang University, Seongdong-ku, Seoul, 133-791, Korea (Ko, Kwang-cheol) || Department of Electrical and Electronic Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, 152-8552, Japan (Okino, Akitoshi) || Department of Energy Sciences, Tokyo Institute of Technology, Nagatsuta, Midori-ku, Yokohama, 226-8502, Japan (Chalise, Priya Raj; Ishikawa, Masaki; Watanabe, Masato; Hotta, Eiki) |
| Abstract | 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. By collision of ions, secondary electrons emitted from this cathode surface 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 is on 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 inside the gas treatment chamber was observed when a honeycomb board and an Al film were placed at the electron window. The electron beam current density of 6.4 $mA/cm^{2}$ measured at cathode voltage of 80 kV possess sufficient energy to irradiate gaseous pollutants like NOx. |
| Starting Page | 86 |
| Ending Page | 89 |
| File Size | 822570 |
| Page Count | 4 |
| File Format | |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2000-06-20 |
| Publisher Place | Japan |
| Access Restriction | Subscribed |
| Rights Holder | Nagaoka University of Technology |
| Subject Keyword | Current measurement wire ion plasma source secondary emission gas treatment Trajectory Pollution measurement electron beam Anodes Cathodes |
| Content Type | Text |
| Resource Type | Article |
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