| Project/Area Number |
08044183
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| Research Category |
Grant-in-Aid for international Scientific Research
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| Allocation Type | Single-year Grants |
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| Section | Joint Research |
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| Research Field |
プラズマ理工学
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| Research Institution | National Institute for Fusion Science |
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Principal Investigator |
HAMADA Yasuji National Institute for Fusion Science , Department of Large helical Device Project , Professor, 大型ヘリカル研究部・主幹, 教授 (20023723)
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| Co-Investigator(Kenkyū-buntansha) |
CONNOR K. Rensselaer Polytechnic Institute, Professor, 教授
FUJISAWA Akihide National Institute for Fusion Science, Department of Large helical Device Project, Res. Associate, 大型ヘリカル研究部, 助手 (60222262)
IGUCHI Harukazu National Institute for Fusion Science, Department of Large helical Device Project, Associate Professor, 大型ヘリカル研究部, 助教授 (40115522)
KRUPNIK L. Khrkov Institute for Physics and Engineering, Professor, 教授
CROWLEY T. Rensselaer Polytechnic Institute, Associate Prof., 助教授
CONNOR K.A. レンセラー工科大学, 教授
KHREBTOV S. ウクライナ国立科学センター, 研究員
SANCHEZ J. スペイン 国立原子力研究所, 主任研究員
TROFIMENNKO Y. ウクライナ国立科学センター, 研究員
KHARCHEV N. ロシア 一般物理研究所, 研究員
VARANDAS C. ポルトガル 高等技術研究所, 教授
NEDZELSKIJ I ウクライナ国立科学センター, 主任研究員
MELNIKOV A. ロシア クルチャトフ研究所, 主任研究員
OUROUA A. レンセラー工科大学, 助手
HIDALGO C. スペイン 国立原子力研究所, 主任研究員
GARCIAーCORTE I. スペイン 国立原子力研究所, 研究員
BECKSTEAD J. レンセラー工科大学, 客員研究員
ACETO A. レンセラー工科大学, 客員研究員
CROWELEY T. レンセラー工科大学, 助教授
SCHOCH P. レンセラー工科大学, 助教授
GIANNONE L ドイツ マックスプランク, プラズマ・物理研究所, 主任研究員
石井 亀男 筑波大学, 物理学系, 助教授 (10015844)
笹尾 真実子 核融合科学研究所, 大型ヘリカル研究部, 助教授 (00144171)
西澤 章光 核融合科学研究所, 大型ヘリカル研究部, 助手 (60156065)
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| Project Period (FY) |
1996 – 1997
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| Project Status |
Completed (Fiscal Year 1997)
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| Budget Amount *help |
¥4,200,000 (Direct Cost: ¥4,200,000)
Fiscal Year 1997: ¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1996: ¥2,100,000 (Direct Cost: ¥2,100,000)
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| Keywords | Heavy Ion Beam / Plasma Potential / Plasma Fluctuation / Trajectory Control / Ion Source / Accelerator / Plasma Diagnostic / HIBP |
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| Research Abstract |
(1) In order to study density fluctuations in the CHS device , a twelve - channel detector array for secondary beams was installed , in which a biasing electrode to suppress secondary electrons emitted from the detector plates due to plasma light was used . However , because of helical magnetic field structure around the detector array , suppression of secondary electrons could not be achieved with a common biasing voltage . Each detector plate should have its own biasing electrode .
(2) Dynamic behaviors of plasma potential have been observed in the CHS experiment . This new phenomenon in a toroidal helical plasma is understood as a kind of phase transition caused by nonlinear relation between radial particle flux and radial electric field . The result introduced new insight for plasma physics and magnetic confinement and was presented as invited talks at the International Conference on Plasma Physics ( ICPP98 ) and the International Conference on Plasma Science ( ICOPS98 ) organized by IEEE in US.
(3) International collaboration on the heavy ion beam probe for the TJ = II Heliac at CIEMAT , Spain has been proposed and agreed between the two HIBP teams at the National institute for Fusion Science and the Kharkov Institute for Physics and Technology , Ukraine .
(4) The HIBP measurements on JIPPT - IIU with multi - channel split - plate detectors demonstrated the power of HIBP for spatial correlation measurement on both density and space potential fluctuations .
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