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arXiv 2106.12943physics.plasm-ph
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ITER锁模中断中的热猝灭

Thermal Quench in ITER Locked Mode Disruptions

H. Strauss

摘要:

介绍了ITER锁模热猝灭(TQ)的模拟和理论计算。在目前的实验中,锁模破裂有一个长的前体阶段,然后是快速终止和热淬火,这可以被识别与电阻壁撕裂模式(RWTM)。在ITER中,RWTM将被高传导真空容器减慢。快速终止可能不存在,并且等离子体可以保持在前体相中。如果边缘温度处于碰撞区,TQ将在很长的时间尺度上进行,由RWTM限制到几乎$100ms.$。这是一个重要的自缓解效应。

英文摘要:

Simulations and theory are presented of an ITER locked mode thermal quench (TQ). In present experiments, locked mode disruptions have a long precursor phase, followed by a rapid termination and thermal quench, which can be identified with a resistive wall tearing mode (RWTM). In ITER, the RWTM will be slowed by the highly conductive vacuum vessel. The rapid termination might be absent, and the plasma could remain in the precursor phase. If the edge temperature is in the collisional regime, the TQ would proceed on a long timescale, limited by the RWTM to almost $100ms.$ This is an important self mitigating effect.

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