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Up-down asymmetric tokamak equilibria with parallel flows

Ap Kuiroukidis, G N Throumoulopoulos2011年Plasma Physics and Controlled FusionIF 2.2出版社

A class of exact axisymmetric tokamak equilibria with sheared flows parallel to the magnetic field is constructed, generalizing previous work on the subject (Kuiroukidis 2010 Plasma Phys. Control. Fusion52 015002). The additional free parameters associated with new terms in the solution make it possible to construct up–down asymmetric configurations with a divertor X-point and desirable values of confinement figures of merit as the safety factor on the magnetic axis and plasma betas; in particular, we construct a number of ITER-pertinent equilibria. Their stability with respect to linear MHD perturbations is also examined by applying a sufficient condition.

日本語訳

磁場に平行なシア流を伴う軸対称トカマク平衡のクラスを構築し、この主題に関する先行研究(Kuiroukidis 2010 Phys. Plasma Fusion 52 015002)を一般化する。解に含まれる新たな項に伴う追加の自由パラメータにより、ダイバータX点と、磁気軸上の安全係数やプラズマベータといった閉じ込め性能指数の望ましい値を有する上下非対称配位を構築することが可能となる。特に、ITERに関連する多数の平衡を構築する。さらに、十分条件を適用することにより、線形MHD摂動に対するそれらの安定性も調べる。

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Tokamak equilibria
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