发表机构
HRS Fusion（HRS Fusion）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文通过磁反馈模拟导体壁，依据q=2有理面靠近电阻壁的判据，证明可消除托卡马克大破裂，为破裂缓解提供替代方案。
AI 中文摘要
撕裂模引起的托卡马克破裂可以通过磁反馈来防止。基于DIII-D锁定模破裂的数据库，提供了大破裂的判据。主要判据是q=2有理面必须足够靠近包围等离子体的电阻壁，以便与其相互作用。这一点通过对从该数据库导出的一系列模型平衡的模拟得到了证明。如果壁是理想导体的，则不会发生大破裂。磁反馈模拟了导体壁的行为，并能防止大破裂。反馈线圈必须适当设计，否则它们在破裂预防中无效。对MST模型的模拟也显示了q=2判据对大破裂的适用性，以及反馈稳定化。反馈为通过杂质注入缓解破裂提供了一种有吸引力的替代方案。
英文摘要
Tokamak disruptions caused by tearing modes can be prevented with magnetic feedback. A database of DIII-D locked mode disruptions provides criteria for major disruptions. The main criterion is that the q = 2 rational surface must be sufficiently close to the resistive wall surrounding the plasma to interact with it. This is shown in simulations of a sequence of model equilibria derived from the database. If the wall is ideally conducting, major disruptions do not occur. Magnetic feedback emulates a conducting wall, and can prevent major disruptions. Feedback coils must be designed appropriately, otherwise they are not effective in disruption prevention. Simulations of a model of MST also show the q = 2 criterion for major disruptions, as well as feedback stabilization. Feedback offers an attractive alternative to disruption mitigation by impurity injection.
Comments17 pages, 11 figures
