1. Locked mode Induced Disruption and Avoidance
Tearing mode start to be braked
Mini-disruption
Disruption
Width of tearing mode start to increase
Avoid the disruption
No effects
The effect is getting worse.
The effect is getting better with increasing frequency
Non-linear effects with the amplitude of rotating RMP.
The rotating RMP with higher frequency has better effect on avoiding the locked mode induced disruption.
Δt : The time difference between the mode locking warning and the disruption
w rotating RMP
w/o rotating RMP
fRMP=3kHz
IRMP =2kA