| Project/Area Number |
23561006
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Nuclear fusion studies
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| Research Institution | National Institute for Fusion Science |
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Principal Investigator |
IGAMI Hiroe 核融合科学研究所, ヘリカル研究部, 准教授 (10390634)
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| Co-Investigator(Renkei-kenkyūsha) |
KUBO Shin 核融合科学研究所, 教授 (80170025)
SHIMOZUMA Takashi 核融合科学研究所, 教授 (80270487)
YOSHIMURA Yasuo 核融合科学研究所, 准教授 (90300730)
TAKAHASHI Hiromi 核融合科学研究所, 教授 (00462193)
IDEI Hiroshi 九州大学, 応用力学研究所, 教授 (70260049)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Keywords | 炉心プラズマ / 電子バーンシュタイン波加熱 / 高密度プラズマ加熱 / モード変換の物理 / 数値計算精度の向上 / 電子バーンシュタイン波 / 高密度プラズマの加熱 / 放射計測 |
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| Research Abstract |
For the electron cyclotron heating (ECH) in over-dense plasmas by launching the electron cyclotron (EC) wave from the low magnetic field side, the electron Bernstein wave (EBW) excited via the ordinary - extraordinary - EBW (OXB) mode conversion process is used. To excite the EBW, the ordinary mode should be launched toward the restricted range of the injection angle, so called "OXB mode conversion window". The EBW emitted thermally in the electron cyclotron resonance (ECR) layer in the over-dense region, can be radiated as an electromagnetic wave via the B-X-O mode conversion process, which is the reverse process of the heating. To survey the "OXB mode conversion window" experimentally, an waveguide switch was installed in the middle of the ECH transmission line to send the emission from the plasma to a heterodyne radiometer system. As the first results, we have observed emission with the radiometer when an over-dense plasma is generated.
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