Physical mechanisms for the transition from type-III to large ELMs induced by impurity injection on EAST

Xin Lin, Guosheng Xu, Qingquan Yang, N. Yan, Yifeng Wang, Y. Ye, Ping Zhu, Bin Cao, Kedong Li, R. Chen, Ling Zhang, Qing Zang, Tao Zhang, Yumin Wang, G.H. Hu, Yingying Li, Chao Zhou, Y.J. Chen, L.Y. Meng, X.D. Yang, Yanmin Duan, H.Q. Liu, F. Ding, Xueying Chen, J.C. Xu, M.F. Wu, Liang Wang