Modification of the divertor particle flux induced by a coherent mode in the HL-2A tokamak

Fig. 1. (a) Dα signal in the lower divertor, (b) the frequency spectrum of the Jsat on the divertor target, (c) the density gradient in the pedestal, (d) the amplitude of the Dα versus the power logarithm of the CP on the divertor target plate. Fig. 2. The effect of the CP on the distribution of the particle flux: Left Y-axis: The profiles of saturate ion current density Jsat on the divertor target with and without CP; Right Y-axis: the RMS of Jsat,CP on the outer divertor target and the increment of the Jsat. Modification of the divertor particle flux induced by a coherent mode in the HL-2A tokamak N. Wu, J. Cheng, L.W. Yan, Z.H. Huang, J.Q. Xu, W.C. Wang, R. Ke, Z.C. Yang, X.Q. Ji, L. Liu, X.X. He, M. Jiang, J. Wen, W.L. Zhong, L.M. Yu, J.M. Gao, Y.B. Dong, Z.B. Shi, Y. Liu, Q.W. Yang, J.Q. Dong, M. Xu and HL-2A Team 1 Southwestern Institute of Physics, 2 Institute of Fusion Science, School of Physical Science and Technology, Southwest Jiaotong University, 3 Institute for Fusion Theory and Simulation, Zhejiang University e-mail (speaker): wuna@swip.ac.cn