Zhipeng Chen

TL;DR: In this article, the impact of 3D magnetic perturbations on MHD instabilities, plasma disruptions and plasma turbulence transport in J-TEXT has been investigated, and a new control strategy which applies pulsed RMP to the tearing mode only during the accelerating phase region, was proved by nonlinear numerical modeling to be efficient in accelerating mode rotation and even completely suppresses the mode.

TL;DR: In this article, the diagnostics development and main modulation systems, i.e. resonant magnetic perturbation (RMP) systems and massive gas injection (MGI) systems, are introduced.

TL;DR: In this article, a series of experiments and simulations of the interaction between resonant magnetic perturbations (RMPs) and plasma were carried out on the J-TEXT tokamak, and the results showed that the m/n = 2/1 (m and n are the poloidal and toroidal mode numbers, respectively) mode locking is obtained with sufficiently large RMPs.

TL;DR: In this article, a polarimeter-interferometer was developed on the J-TEXT tokamak to measure electron density and Faraday angle simultaneously, with time response up to 1 µs, phase resolution <0.1° and spatial resolution ~3 cm.

TL;DR: In this paper, the magnetic island effects on flows and turbulence were investigated using multiple Langmuir probe arrays on the edge plasmas of the J-TEXT tokamak.