Study on the electrostatic potential in the formation of closed magnetic configuration
| Project/Area Number |
23340174
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Plasma science
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| Research Institution | Kyoto University |
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Principal Investigator |
TANAKA Hitoshi 京都大学, エネルギー科学研究科, 准教授 (90183863)
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| Co-Investigator(Kenkyū-buntansha) |
MAEKAWA Takashi 京都大学, 大学院・エネルギー科学研究科, 教授 (20127137)
UCHIDA Masaki 京都大学, 大学院・エネルギー科学研究科, 助教 (90322164)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2012: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
Fiscal Year 2011: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
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| Keywords | 磁気再結合 / 閉磁気面形成 / 静電ポテンシャル形成 / 電子サイクロトロン共鳴加熱 / 重イオンビームプローブ / 電位計測 / 電子サイクロトロン共鳴プラズマ / 静電ポテンシャル / イオンビームプローブ |
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| Research Abstract |
In the Low Aspect-ratio Torus Experiment (LATE) device, there observed a spontaneous formation of closed configuration of magnetic field when a electron cyclotron (EC) resonance plasma is produced under a weak vertical field superimposed on a toroidal field. A heavy ion beam probe (HIBP) system has been developed to measure the electrostatic potential which may play an important role on the transition of the magnetic topology. It is observed at the first time that the electrostatic potential is negative at -20 ~ -30V on the midplane near the EC resonance layer when the closed magnetic field configuration is formed. The result is completely different from the open field configuration case where the electrostatic potential is positive in the entire region. This result suggests that the electrostatic potential changes drastically through the transition from the open field configuration to the closed one.
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Report
(4 results)
Research Products
(15 results)
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[Presentation] Development of ion beam probe for the LATE plasma2011
Author(s)
S . Omi , H . Tanaka , J . Katsuma , T.Kanemitsu, R.Hayashi, T.Fukunaga, H.Mizogami, Y.Noguchi, F.Watanabe, M.Uchida, T.Maekawa, H.Iguchi
Organizer
Plasma Conference 2011
Place of Presentation
石川県立音楽堂,石川県金沢市
Year and Date
2011-11-22
Related Report
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