<RESEARCH REPORT>BALLOONING BETA LIMITS OF DEE AND BEAN SHAPED TOKAMAKS

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概要

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• Numerical studies of the first stability beta-limit due to n=∞ ballooning modes in advanced shaped tokamaks are carried out. A higher beta value than the present conventional beta scaling is expected for advanced shaped tokamaks with sufficient triangularity-indentation. The extremely elongated configuration without appropriate triangularity does not lead to the increase of the critical beta. Dee or bean shaping with sharp tip cross-section is more favorable for achieving high beta value than that with round tip cross-section having the nearly same safety factor profile. A new beta scaling for elongated ellipse, dee and bean shaped tokamaks is derived.

• 核融合科学研究所の論文

著者

• HAMADA Y.

  Institute of Plasma Physics, Nagoya University

• YAMAZAKI K.

  Institute of Plasma Physics, Nagoya University

• AMANO T.

  Institute of Plasma Physics, Nagoya University

• Azumi M.

  Institute Of Plasma Physics Nagoya University

• Naitou H.

  INSTITUTE OF PLASMA PHYSICS NAGOYA UNIVERSITY

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