| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Outline of Final Research Achievements |
This study aims at clarifying periodic and non-periodic changes in fluctuation power spectrum by using a conditional averaging based on probability density functions and so on. In analysis on JFT-2M tokamak data, power spectra at plasma edge region are calculated based on each phase of decomposed global Sawtooth pulse, and changes of amplitudes of oscillatory zonal flows and drift-wave turbulence during the Sawtooth was clarified. In analysis on linear plasma device PANTA data, two-dimensional wavenumber structures are reconstructed by correlation analysis, and conditional averaging over phases with and w/o electric biasing clarifies changes in the wavenumber structures during the biasing.
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