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Energy confinement of Ohmically heated D-shaped plasmas in Doublet III

M. Nagami, H. Yokomizo, M. Shimada, H. Yoshida, K. Ioki, S. Izumi, K. Shinya, G. Jahns, D. Baker, C. Armentrout1982年被引用 13Nuclear FusionIF 3出版社

Energy confinement properties were compared for D-shaped and circular-cross-section plasmas with an identical horizontal minor radius as functions of plasma current, electron density, and vertical elongation under a wide range of discharge conditions. The property of gross energy confinement can be explained by the combination of an electron energy confinement proportional to eq*(∝(eBT/Ip)(1+K2)/2) and neoclassical ion energy confinement proportional to The high-current operation capability of D-shaped plasmas produces an improvement in energy confinement at high density due to the reduction of neoclassical heat loss in the ions. The highest energy confinement time (75 ms) is obtained for high-current and high-density D-shaped discharges.

日本語訳

エネルギー閉じ込め特性は、同一の水平小半径を有するD字形および円形断面プラズマについて、プラズマ電流、電子密度、および垂直伸長率の関数として、広範囲の放電条件下で比較された。全体的なエネルギー閉じ込めの特性は、eq*(∝(eBT/Ip)(1+K2)/2)に比例する電子エネルギー閉じ込めと、に比例する新古典論的イオンエネルギー閉じ込めの組み合わせによって説明できる。D字形プラズマの高電流運転能力は、イオンにおける新古典論的熱損失の低減により、高密度でのエネルギー閉じ込めの改善をもたらす。最高のエネルギー閉じ込め時間(75 ms)は、高電流かつ高密度のD字形放電において得られる。

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Ohmic heatingEnergy confinementDoublet III
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