时 间：2017年2月21日（周二） 14:00

地 点：二楼会议室

报告人：陈志鹏

题目：Investigation of momentum transport in J-TEXT tokamak with electrode biasing

摘要：The advanced operation scenario in the magnetic confinement fusion devices(tokamak) is stable and high confinement mode(H-mode). And plasma rotation is considered as an important role in the improvement of confinement and the suppression of instability, and has become the key of steady operation of International Thermonuclear Experimental Reactor(ITER). The toroidal momentum transport and intrinsic rotation, which is concerned with the plasma rotation in magnetic confinement fusion device, are the forefront of the fusion physics research. This project has applied the bias electrodes driven edge plasma rotation in J-TEXT tokamak and obtained the characteristics of bias electrode and the function of the electrode current on driving plasma toroidal rotation at edge. Then through the periodical oscillation of plasma toroidal rotation with electrode biasing(EB), the modulation phenomenon of the core plasma toroidal rotation by the plasma rotation at edge has been studied. After analyzing the propagation of the toroidal momentum perturbation, the diffusivity and convection of toroidal rotation momentum transport have been firstly calculated in J-TEXT, and the results have illustrated an anomalous momentum transport.