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This Week at Physics

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Event Number 3320

  Monday, April 28th, 2014

Plasma Physics (Physics/ECE/NE 922) Seminar
Influence of energetic ions on resistive wall mode in reversed field pinch".
Time: 12:00 pm
Place: 2241 Chamberlin
Speaker: Hui Shan Cai, University of Science and Technology, China
Abstract: A stability analysis of the circulating energetic ions (CEIs) on resistive wall mode is carried out in the reversed field pinch (RFP). In contrast to the minor resonant effects of CEI on resistive wall mode (RWM) in tokamak, the resonant interaction between RWM and CEI is important for high toroidal mode number in RFP with high beta value. The resonance provides an energy dissipation channel of free energy, and stabilizes RWM. As the fraction of CEI is large enough, the RWM is fully suppressed by CEI in the low plasma rotation, even vanishing rotation. Further, a possibility to suppress the RWM by CEI is suggested.
Host: Weixing Ding
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