Abstract
Abstract
The acceleration of the magnetic island rotation by the modulated resonant magnetic perturbation (MRMP) has been studied in J-TEXT tokamak experiments. After applying the MRMP, the phase difference between the tearing mode (TM) and MRMP, Δξ, oscillated near the effective phase difference, Δξ
eff, which was defined as the time averaged value of Δξ. When the Δξ
eff was closed to the—π/2, the MRMP only contributed an accelerating torque on the TM. As the result, the TM rotation frequency was increased by a few kilohertz for the optimized relative phase by small RMPs of the order of 10−5 of the toroidal field and the locked mode induced disruption was avoided. It is found that the TM rotation could be increased to a higher frequency by applying a stronger MRMP. There is a negative sinusoidal relationship between TM frequency and Δξ
eff.
Funder
National Natural Science Foundation of China
Key R&D Program of China
Fundamental Research Funds for the Central Universities
Subject
Condensed Matter Physics,Nuclear Energy and Engineering
Cited by
1 articles.
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