Abstract

The work is devoted to the analysis of the influence of poloidal current induced in a tokamak vacuum chamber due to change of paramagnetic plasma properties as a result of thermal quench on the magnitude and distribution of electromagnetic forces in a vacuum chamber. The work was performed numerically using the plasma-physics code DINA for conditions of major disruption in the plasma of ITER and T-15MD. A comparison is made of the electromagnetic effect obtained from the toroidal and poloidal currents induced in the vacuum chamber as a result of thermal quench with estimates of the electromagnetic forces due to only toroidal currents. It is shown that the integral radial component of the electromagnetic force in the elements of the vacuum chamber when the poloidal current is taken into account can be much lower than in the case of only the toroidal current induced in the chamber. The paper presents a model for calculating the poloidal current induced in a vacuum chamber first used in the DINA code.

中文翻译：

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淬火后感应极化电流在托卡马克真空室内的电磁力分析

摘要

这项工作致力于分析由于热淬火导致的顺磁等离子体性质变化而导致的在托卡马克真空室中感应的倍体电流对真空室中电磁力的大小和分布的影响。使用等离子物理代码DINA对ITER和T-15MD等离子的主要破坏条件进行了数字化处理。比较了由由于热淬火而在真空室中感应的环形电流和极向电流所获得的电磁效应，并估计了仅由于环形电流而产生的电磁力。结果表明，当考虑到极向电流时，在真空腔室的元件中电磁力的积分径向分量可以大大低于仅在真空腔室中感应出环形电流的情况。本文提出了一种模型，该模型用于计算最初在DINA代码中使用的真空室中感应的极向电流。