SPEAKER: Andres Cathey

Type-I edge localised modes (ELMs) are large scale instabilities excited at the edge of tokamaks in high confinement mode. This type of instability repetitively expels 5 to 15% of the energy stored in the confined plasma and may cause unacceptable damage to future machines like ITER. The first simulations of repetitive type I ELMs in realistic geometry are presented in this talk. The simulations reproduce the experimentally-observed dependence of the ELM repetition frequency on the applied heating power. A triggering mechanism based on magnetic reconnection is found to play an important role in the explosive onset of ELMs and is described in detail.

Topic: MPPC Zoom Meeting

https://pppl.zoom.us/j/703774602  

Meeting ID: 703 774 602