| Project/Area Number |
21560858
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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 |
Nuclear fusion studies
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| Research Institution | Tokai University |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Keywords | プラズマ / 壁相互作用 / ダイバータ / ELM / ダイバータ模擬装置 / 衝突輻射モデル / 高エネルギー電子 / 水素原子のBalmer系列 / 非接触プラズマ / 再結合量 / パルスプラズマ / V字ダイバータ / バルマー系列 / 発光強度 / デタッチプラズマ / 熱負荷低減 / 核融合 / 閉ダイバータ / V字ターゲット / 熱負荷 / 電子の分布関数 |
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| Research Abstract |
In this study, the experimental observation of the time evolution of electron density ne, electron temperature T_e, electron velocity distribution function. f_e(υ), and hydrogen Balmer series spectra in hydrogen recombination plasma have been carried out in a liner plasma device. The value of n_e, T_e, f_e(υ), and hydrogen Balmer series spectra is found to depend on gas pressure in the recombination plasma with pulse plasma flow. The high energy electrons in the pulse plasma flow are influenced by the time evolution of the Balmer series spectra. The transient behavior of the recombination plasma with pulse plasma flow has been studied by observing the short double minimum(negative) spike in Hα emission from the plasma. This response in Hα emission is explained by CR model taking into account of the high energy electron associated with pulse plasma flow.
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