STABILITY OF A TOROIDAL PLASMA BY HOT ELECTRON ANNULUS IN A BUMPY TORUS
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概要
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An analytical study of the ballooning instability is presented in a bumpy configuration using a relatively simple fluid model of an inhomogeneous slab plasma with grativational field simultating the bad curvature effect and the grad-B effect due to hot electron annulus. Mathieu type equation is derived to investigate a linear analysis. Stability boundary giving the maximum stable β_p (beta value of bulk plasma) as a function of β_h and the threshold for β_h (beta value of hot electron annulus) are studied for Nagoya Bumpy Torus (NBT) parameters. The relevance of our theoretical analysis is discussed in a comparison with the previous results.
- 核融合科学研究所の論文
著者
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Fujiwara M.
Research Center for Nuclear Physics, Osaka. University
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Sanuki H.
Research Information Center Institute Of Plasma Physics Nagoya University
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