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Analyses of Temporally and Spatially Resolved Plasma Behavior Using X-Ray Data in a Single Plasma Discharge on Gamma 10

R. Minami, T. Cho, T. Numakura, J. Kohagura, M. Hirata, H. Watanabe, M. Ichimura, K. Yatsu, S. Miyoshi

Fusion Science and Technology / Volume 43 / Number 1T / January 2003 / Pages 280-282

Diagnostics /

Published:February 8, 2018

The direct detailed observations of temporally and spatially resolved plasma behavior of a magnetohydrodynamic (MHD) anchor stabilization for central-cell plasmas are carried out by the use of our newly developed semiconductor x-ray detector arrays installed in both central-cell and anchor regions of the GAMMA 10 tandem mirror. In comparison to the previous reports, the present x-ray observations directly clarify an unsolved issue of the behavior of the internal core-plasma structure during the MHD destabilization experiments. The present x-ray analyses by the use of our proposed method with our developed matrix-type semiconductor detector are, therefore, characterized in terms of providing the direct detailed “visible” structural information on the interior core-plasma behavior during the period with the MHD instability, as well as showing the important role of the minimum-B inboard anchor in the MHD plasma stabilization in GAMMA 10.

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