2007 Fiscal Year Final Research Report Summary
Experimental Demonstration of Terahertz Gyrotron - High Power Far-Infrared Radiation Source
| Project/Area Number |
17360158
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Nagaoka University of Technology |
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Principal Investigator |
SUEMATSU Hisayuki Nagaoka University of Technology, Department of Elec. Eng., Professor (30222045)
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| Co-Investigator(Kenkyū-buntansha) |
SUZUKI Tsuneo Nagaoka University of Technology, Department of Elec. Eng, Assistant Professor (00313560)
IDEHARA Toshitaka University of Fukui, Research Center for Development of Far-Infrared Research, Specially Appointed Professor (80020197)
SAITO Teruo University of Fukui, Research Center for Development of Far-Infrared Research, Professor (80143163)
OGAWA Isamu University of Fukui, Research Center for Development of Far-Infrared Research, Professor (90214014)
KAMADA Masaki 日本原子力研究開発機構, Japan Atomic Energy Agency, Fusion Research and Development Directorate, Researcher (50397288)
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| Project Period (FY) |
2005 – 2007
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| Keywords | Terahertz Waves / Sub-Millimeter Waves / Pulsed Power / Relativistic Electron Beam / Far-Infrared Radiation |
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| Research Abstract |
The purpose of this research is to develop high-power far-infrared light source in the terahertz frequency ranger and to promote its applications. The following progress and results have been achieved.
1. Using repetitive pulsed power generator "ETIGO-IV" located in Nagaoka University of Technology, relativistic electron beam has been generated and analyzed for beam characteristics (brightness, pitch-factor, and divergence). After system optimization, the electron beam quality has met with the requirement for large-orbit gyrotron operation.
2. Large-orbit gyrotron experiments have been carried out. The diagnostic results have shown electromagnetic radiation of nearly 150 GHz in frequency and TE_<14> mode.
3. Three-dimensional numerical simulation has been used to analyze the interaction process of large-orbit gyrotron. The calculation results have helped in understanding the electron-beam behavior, resonant cavity design, and radiation mode control.
4. Initial experimental study have been carried out at University of Fukui on large-orbit gyrotron applications, especially in plasma diagnostics and material analysis.
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