| Project/Area Number |
09680455
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
プラズマ理工学
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| Research Institution | Ustunomiya University |
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Principal Investigator |
YUGAMI Noboru Ustnomiya University, 大学院・工学研究科, 助教授 (60220521)
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| Co-Investigator(Kenkyū-buntansha) |
ITO Hiroaki 宇都宮大学, 大学院・工学研究科, 助手 (70302445)
NISHIDA Yasushi 宇都宮大学, 大学院・工学研究科, 教授 (00005315)
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| Project Period (FY) |
1997 – 1998
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| Project Status |
Completed (Fiscal Year 1998)
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| Budget Amount *help |
¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 1998: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1997: ¥2,400,000 (Direct Cost: ¥2,400,000)
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| Keywords | plasma / duct / accelrator / frequency upshift / blue shift / DARC / photon accelerator / レーザ航跡場 / プラズマ加速 / チャネリング |
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| Research Abstract |
We have experimentally investigated "DARC (DC to AC radiation converter)"using 4ωィイD20ィエD2 light of Nd : YAG laser with a pulse duration of 〜 6ns. Electromagnetic wave generation has been observed in the interaction experiments between a static electric field and a relativistic ionization front. The frequency of the emitted microwave pulse (〜 6ns) ranges from 9.5 GHz to 14.1 GHz. The output signal intensity is proportional to the DC bias voltages with a power of 2.3. The emitted radiation field is polarized along the static electric field direction. The pulse duration of the emitted radiation is as long as that of the ionizing laser. This indicates that the pulse duration strongly depends on the ionizing process by the laser light.
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