| Project/Area Number |
09045057
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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 |
Nuclear fusion studies
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| Research Institution | Himeji Institute of Technology |
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Principal Investigator |
UYAMA Tadao Himeji Institute of Technology, Faculty of Engineering, Professor, 工学部, 教授 (00093378)
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| Co-Investigator(Kenkyū-buntansha) |
FUKUMOTO Naoyuki Himeji Institute of Technology, Faculty of Engineering, Research Associate, 工学部, 助手 (90275305)
NAGATA Masayoshi Himeji Institute of Technology, Faculty of Engineering, Assciate professor, 工学部, 助教授 (00192237)
NELSON Brian ワシントン大学, 工学部, 助教授
JARBOE Thoma ワシントン大学, 工学部, 教授
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| Project Period (FY) |
1997 – 1999
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| Project Status |
Completed (Fiscal Year 1999)
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| Budget Amount *help |
¥5,000,000 (Direct Cost: ¥5,000,000)
Fiscal Year 1999: ¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1998: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1997: ¥2,200,000 (Direct Cost: ¥2,200,000)
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| Keywords | Current Drive / Spherical Tours / Coaxial Helicity Injection / Magnetic fluctuation / Self-organization / Relaxation / Plasma flow / Ion heating / ヘリシティ電流駆動 / スフェリカルトカマク / ヘリシティ注入 |
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| Research Abstract |
In 1999 fiscal year, a possible mechanism for current drive in spherical tours configurations with coaxial helicity injection (CHI) has been studied at the University of Washington in collaboration with Himeji Institute of Technology. Measurements using a 1m, resolution of 0.09 A, Ion Doppler Spectrometer (IDS), which was carried from Himeji Institute of Technology in 1998 fiscal year, have been made on the Helicity Injected Torus-II (HIT-II) at the University of Washington. The data from the IDS have been used to determine temperature for various ion species and toroidal ion flow velocities. Results showed that ion temperature is 〜100 ev(OV) in the plasma core and 〜30 eV(CIII) at the plasma edge and ion flow velocities are 10〜20 km/s. The measured axial and toroidal flows are correlated with a high frequency (50 kHz) n=1 mode. A dynamo model for current drive, where the electrons on the separatrix are tied to a rotating n=1 mode, is presented and its predictions compared with experimental results.
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