| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2009: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Research Abstract |
Second harmonic 70GH_z X-mode Electron cyclotron current drive experiment has been made in Heliotron J by using a newly developed lauching system. The Experimnental results show that the EC driven current strongly depends on the magnetic field structure, and the results quantitatively agree with a theoretical result including parallel momentum convervatio, indicating that trapped particles have an important role on determining the ECCD. An Global Alfven Eigenmode(GAE) has successfully suppressed by ECCD in an NBI plasma. The mode intensity is quickly reduced when the magnetic shear reaches a certain value, resulting that there is a threshold magnetic shear for the mode stabilization.
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