Disruption prevention using rotating resonant magnetic perturbation on J-TEXT

Plasma major disruption is one of the most critical issues to be solved for a tokamak fusion reactor. Experiments to prevent mode locking and subsequent disruptions have been carried out on J-TEXT tokamak using rotating resonant magnetic perturbations (RMPs). The tearing modes, to be locked and to lead to disruptions without applying RMPs, can be accelerated by rotating RMPs to the RMP frequency. As the result, the mode locking and subsequent disruptions are delayed or prevented. The effects of RMP amplitude and frequency on disruption prevention have been investigated.