Heating and flow drive by low frequency waves in high beta plasmas
| Project/Area Number |
22686085
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Nuclear fusion studies
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| Research Institution | The University of Tokyo |
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Principal Investigator |
INOMOTO Michiaki 東京大学, 新領域創成科学研究科, 准教授 (00324799)
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| Research Collaborator |
KAMIO Shuji 自然科学研究機構, 核融合科学研究所, 助教 (80795525)
II Toru 東京大学, 工学系研究科, 博士後期課程
KUWAHATA Akihiro 東京大学, 工学系研究科, 博士後期課程
ITAGAKI Hirotomo 東京大学, 新領域創成科学研究科, 博士後期課程
WATANABE Takenori 東京大学, 新領域創成科学研究科, 博士後期課程
YAMASAKI Kotaro 東京大学, 工学系研究科, 博士後期課程
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| Project Period (FY) |
2010-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥24,180,000 (Direct Cost: ¥18,600,000、Indirect Cost: ¥5,580,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2012: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2011: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
Fiscal Year 2010: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
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| Keywords | プラズマ・核融合 / プラズマ加熱 / 高ベータプラズマ |
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| Research Abstract |
Low frequency waves are excited in the high beta region of magnetically confined plasmas by magnetic reconnection during plasma merging process. These waves partly contribute to the conversion from magnetic energy to ion thermal energy. When the reconnection includes significant guide magnetic field perpendicular to the reconnection magnetic field, monotonic large-amplitude waves are excited as kinetic Alven waves. However, these waves are not dominant factors providing the observed ion heating. On the other hand, when there is no guide field, very low fewquency waves are globally excited. These shear Alfven waves directly drive ion flows and eventually provide conversion from magnetic to ion thermal energy. It is concluded that these very low frequency waves work for the heating method for high beta plasmas.
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Report
(5 results)
Research Products
(50 results)
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[Journal Article] Electron Acceleration by Magnetic Reconnection During Spherical Tokamak Merging Experiment2013
Author(s)
S. Kamio, K. Yamasaki, K. Takemura, Q. H. Cao, T. G. Watanabe, H. Itagaki, T. Tsutsui, K. Ishiguchi, R. Imazawa, T. Yamada, C. Z. Cheng, M. Inomoto, Y. Ono
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Journal Title
IEEJ Transactions on Fundamentals and Materials
Volume: 133
Issue: 4
Pages: 166-172
DOI
NAID
ISSN
0385-4205, 1347-5533
URL
Related Report
Peer Reviewed
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[Journal Article] Multipoint Spectroscopy Measurement of Spherical Tokamak Heating by Magnetic Reconnection in UTST2011
Author(s)
S. Kamio, Q. Cao, K. Abe, M. Sakumura, N. Suzuki, T. G Watanabe, K. Ishiguchi, R. Imazawa, T. Yamada, M. Inomoto, Y. Ono
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Journal Title
Plasma and Fusion Research
Volume: 6
Pages: 2402033-2402033
DOI
NAID
ISSN
1880-6821
Related Report
Peer Reviewed
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[Presentation] Overview of UTST plasma merging experiment2013
Author(s)
M. Inomoto, T. Yamada, S. Kamio, H. Itagaki, Q.H. Cao, T.G. Watanabe, K. Yamasaki, K. Takemura, A. Wang, Y. Takase, Y. Ono
Organizer
The First A3 Foresight Workshop on Spherical Torus (ST)
Place of Presentation
Seoul National Univ, Seoul, Korea
Year and Date
2013-01-15
Related Report
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[Presentation] 磁気リコネクション室内実験の進展2012
Author(s)
井通暁, 小野靖, 林由記, 田辺博士, 桑波田晃弘, TS グループ
Organizer
日本天文学会2012年春季大会
Place of Presentation
龍谷大学(京都府)
Year and Date
2012-03-22
Related Report
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[Presentation] Excitation of Low Frequency Electromagnetic Waves in Magnetic Reconnection Laboratory Experiment2011
Author(s)
M. Inomoto, A. Kuwahata, S. Ito, H. Tanabe, Y. Hayashi, P. Copinger, T. Ii, B. Gao, T. Ito, T. Yamada, Y. Ono
Organizer
Fifth Hinode Science Conference
Place of Presentation
Cambridge, Massachusetts, USA
Year and Date
2011-10-13
Related Report
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[Presentation] Wave and Plasmoid Mediated Reconnections in Laboratory Experiments2011
Author(s)
M. Inomoto, Y. Hayashi, S. Ito, P. Copinger, S. Kamio, H. Tanabe, T. Ii, A. Kuwahata, Q.H. Cao, H. Itagaki, H. Sakamoto, A. Matsuda, S. Inoue, K. Gi, N. Suzuki, G. Watanabe, T. Yamada, Y. Ono
Organizer
11th International Workshop on Interrelationship between Plasma Experiments in the Laboratory and in Space(IPELS)
Place of Presentation
Whistler, Canada
Year and Date
2011-07-15
Related Report
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[Presentation] Kinetic behaviors of energetic ions in oblate field-reversed configuration2010
Author(s)
M.Inomoto, H. Imanaka, Y. Hayashi, S. Ito, Y. Ito, H. Nonaka, H. Tanabe, T. II, K. Suzuki, A. Kuwahata, T. Sakamoto, A. Matsuda, A. Azuma, Y. Nemoto, A. Ohsaki, T. Asai, Y. Ono
Organizer
23rd IAEA Fusion Energy Conference
Place of Presentation
Daejon, Korea
Year and Date
2010-10-15
Related Report
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