| Budget Amount *help |
¥20,540,000 (Direct Cost: ¥15,800,000、Indirect Cost: ¥4,740,000)
Fiscal Year 2009: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2008: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2007: ¥11,440,000 (Direct Cost: ¥8,800,000、Indirect Cost: ¥2,640,000)
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| Research Abstract |
A magnetospheric configuration gives rise to various peculiar plasma phenomena that pose conundrums to astrophysical studies. We have demonstrated that the plasma self-organizes a stable vortex, in which particles diffuse inward to steepen the density gradient. By electron-cyclotron heating (ECH), we can produce ultra high beta (>0.7) stable (confinement time>0.1s) plasma. We can also produce a pure-electron plasma by emitting electrons from an electron gun placed in the vicinity of the confinement region. The confinement time is longer than 300s. The self-organized confinement is explained by the "distortion" of the phase space of magnetized particles in a strongly inhomogeneous magnetic field.
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