Measurement of electron Bernstein wave emission to search the optimum injection condition to heat the central region of the extremely high dense plasma
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 |
Section | 一般 |
Research Field |
Nuclear fusion studies
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Research Institution | National Institute for Fusion Science |
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 |
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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Report
(4 results)
Research Products
(19 results)
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[Journal Article] Electron Bernstein wave heating and emission measurement through the very narrow O-X-B mode conversion window in the LHD2014
Author(s)
H.Igami, S.Kubo, T.Shimozuma, Y.Yoshimura, H.Takahashi, M. Nishiura, Ogasawara, R. Makino, H. Idei, K. Nagasaki, T. Seki, T. Mutoh
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Journal Title
AIP Conf. Proc.
Volume: 1580
Pages: 490-490
Related Report
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[Journal Article] Progress of ECRH by EBW in over-dense plasmas and controlling the confinement regime by ECCD with high power launching in LHD2012
Author(s)
H. Igami, Y. Yoshimura, H. Takahashi, T. Shimozuma, S. Kubo, H. Idei, M. Nishiura, S. Ogasawara, R. Makino S. Ohdachi, K. Ida, M. Yoshinuma, Ido, A. Shimizu, N. Tamura, S. Inagaki and T. Mutoh
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Journal Title
EPJ Web of Conference
Volume: 32
Pages: 2006-2006
Related Report
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[Journal Article] Experimental Results for Electron Bernstein Wave Heating in the Large Helical Device2012
Author(s)
H. Igami, S. Kubo, T. Shimozuma, Y. Yoshimura, H. Takahashi, H. Idei, M. Nishiura, S. Ogasawara, R. Makino, R. Kumazawa, T. Mutoh, A. Sagara and T. Goto
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Journal Title
Plasma and Fusion Research
Volume: 7
Pages: 2402110-2402110
NAID
Related Report
Peer Reviewed
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[Presentation] Electron Bernstein wave heating and emission measurement through the very narrow O-X-B mode conversion window in the LHD2013
Author(s)
H. Igami, S. Kubo, b, T. Shimozuma, Y. Yoshimura, H. Takahashi, M. Nishiura, S. Ogasawara, R. Makino, H. Idei, K. Nagasaki, T. Seki, M. Osakabe and T. Mutoh
Organizer
20th Topical Conference on Radio Frequency Power in Plasmas
Place of Presentation
Sorrento, Italy
Related Report
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[Presentation] Experimental results of electron Bernstein wave heating on the LHD and consideration for a helical type fusion device2011
Author(s)
H. Igami, S. Kubo, T. Shimozuma, Y. Yoshimura, H. Takahashi, H. Idei, M. Nishiura, S. Ogasawara, R. Makino, R. Kumazawa, T. Mutoh, A. Sagara, T. Goto
Organizer
International Toki Conference 21
Place of Presentation
Toki, Japan(ポスター発表)
Related Report
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[Presentation] LHDにおけるOXBモード変換過程を介した電子バーンシュタイン波加熱2011
Author(s)
伊神弘恵, 久保伸, 下妻隆, 吉村泰夫, 高橋裕己, 出射浩, 西浦正樹, 小笠原慎哉, 牧野良平, 熊沢隆平, 武藤 敬
Organizer
Plasma Conference 2011
Place of Presentation
石川県立音楽堂
Related Report