| Co-Investigator(Kenkyū-buntansha) |
YOSHINUMA Mikirou 核融合科学研究所, ヘリカル研究部, 助教 (20323058)
KOBAYASHI Tatsuya 核融合科学研究所, ヘリカル研究部, 助教 (30733703)
MOON Chanho 核融合科学研究所, ヘリカル研究部, COE研究員 (50734753)
大石 鉄太郎 核融合科学研究所, ヘリカル研究部, 助教 (80442523)
門 信一郎 東京大学, 工学(系)研究科, 准教授 (10300732)
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| Budget Amount *help |
¥49,010,000 (Direct Cost: ¥37,700,000、Indirect Cost: ¥11,310,000)
Fiscal Year 2014: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2013: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2012: ¥15,080,000 (Direct Cost: ¥11,600,000、Indirect Cost: ¥3,480,000)
Fiscal Year 2011: ¥21,450,000 (Direct Cost: ¥16,500,000、Indirect Cost: ¥4,950,000)
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| Outline of Final Research Achievements |
Two dimensional structure of plasma density fluctuations was studied using the beam emission spectroscopy in Large Helical Device (LHD). By making the observation volume slit, the directional sensitivity for radial or poloidal direction has been improved. The time-space correlation between density and magnetic fluctuations shows clear peaks with the frequency peak of 1.5kHz and 3kHz in the high-beta discharge in LHD. In poloildal direction, the fluctuations propagates in the direction of ExB rotation and this fluctuations was identified to be Edge Harmonic Oscillation (EHO) .
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