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Study of neoclassical transport and bootstrap current for W7-X in the 1/ν regime, using results from the PIES code

V V Nemov, V N Kalyuzhnyj, S V Kasilov, M Drevlak, J Nührenberg, W Kernbichler, A Reiman, D Monticello2004年Plasma Physics and Controlled FusionIF 2.2出版社

For the magnetic field of the Wendelstein 7-X (W7-X) standard high-mirror configuration, computed by the PIES code, taking into account real coil geometry, neoclassical transport and bootstrap current are analysed in the 1/ν regime using methods based on the integration along magnetic field lines in a given magnetic field. The zero β and ⟨β⟩ = 1% cases are studied. The results are compared to the corresponding results for the vacuum magnetic field directly produced by modular coils. A significant advantage of W7-X over a conventional stellarator resulting from reduced neoclassical transport and from reduced bootstrap current follows from the computations although the neoclassical transport is somewhat larger than that previously obtained for the ideal W7-X model configuration.

日本語訳

Wendelstein 7-X(W7-X)標準高鏡像配位の磁場について、PIESコードによって計算され、実コイル形状を考慮した場合の新古典輸送と自走電流を、与えられた磁場に沿った磁力線積分に基づく手法を用いて1/ν領域で解析した。β=0および⟨β⟩=1%の場合を研究した。得られた結果は、モジュールコイルによって直接生成される真空磁場に対する対応する結果と比較した。新古典輸送と自走電流の低減によるW7-Xの従来型ステラレーターに対する有意な利点が計算から導かれるが、新古典輸送は理想的なW7-Xモデル配位に対して以前に得られた結果よりもやや大きい。

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wendelstein-7x高精度(タイトル一致)

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W7-XBootstrap currentNeoclassical transport
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