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Stability Analysis of Flute Interchange Mode in GAMMA 10 Configuration

Y. Mizoguchi, I. Katanuma, Y. Sasagawa, T. Cho (19P51)

Fusion Science and Technology / Volume 51 / Number 2T / February 2007 / Pages 349-351

Technical Paper / Open Magnetic Systems for Plasma Confinement /

In the divertor magnetic configuration, the kinetic stability analysis taken into account an ion Larmor gyration is carried out. This is because the divertor magnetic configuration has the null point, where the Larmor radius grows near the region of the null point. Therefore the MHD approximation is not appropriate for the divertor magnetic configuration.

A kinetic stability analysis equation is derived by Y.Sasagawa et al. and which takes into account the anisotropic temperature and its radial dependence. Using this equation, we investigate the stability boundary of flute interchange mode for GAMMA10 central cell divertor.

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