| Project/Area Number |
09480087
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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 |
プラズマ理工学
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| Research Institution | Tohoku University |
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Principal Investigator |
INUTAKE Masaaki Tohoku University, Graduate School of Engineering, Professor, 大学院・工学研究科, 教授 (90023738)
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| Co-Investigator(Kenkyū-buntansha) |
HATTORI Kunihiko Tohoku University, Graduate School of Engineering, Associate Researcher, 大学院・工学研究科, 助手 (90261578)
ANDO Akira Tohoku University, Graduate School of Engineering, Associate Professor, 大学院・工学研究科, 助教授 (90182998)
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| Project Period (FY) |
1997 – 1999
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| Project Status |
Completed (Fiscal Year 2001)
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| Budget Amount *help |
¥12,900,000 (Direct Cost: ¥12,900,000)
Fiscal Year 1999: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 1998: ¥4,200,000 (Direct Cost: ¥4,200,000)
Fiscal Year 1997: ¥7,500,000 (Direct Cost: ¥7,500,000)
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| Keywords | Electromagnetic volticies / Shear Alfven wave / Helicity antenna / Integrated chip inductor / Micromagnetic probe / HITOP / MHD / 電磁流体 / プラズマ流 / 自己組織化 / 渦 / MPDアークジェット / 小型磁気プローブアレイ / プローブアレイ |
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| Research Abstract |
(1) Development of new micro-chip magnetic probes
In order to detect a precise magnetic structure in a high density plasma, we have developed a new micro-magnetic-probe using a integrated micro-chip inductor. These chips were calibrated by oscillating magnetic field and showed a good reproducibility.
(2) Excitation of Alfven waves by a helicity antenna
A helicity antenna, which consisted of a loop coil and Rogowski coil, was newly developed to excite a compressional and shear Alfven waves.
We have examined to excite a large amplitude m=0 shear Alfven wave by a combination of the loop and Rogowski coil currents. A m=0 shear Alfven wave was excited in a magnetic field configuration including a separatrix structure. It was found that the amplitude of the waves increased inside of the separatrix. Spatial profiles and temporal evolutions were measured by a multi-channel micro magnetic probe array.
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