Suppression of tungsten accumulation during ELMy H-mode by lower hybrid wave heating in the EAST tokamak gan L. Zhang, S. Morita, Z. Xu, P.F. Zhang, Q. Zang, Y.M. Duan, H.Q. Liu, H.L. Zhao, F. Ding, T. Ohishi, W. Gao, J. Huang, X.D. Yang, Y.J. Chen, Z.W. Wu, P. Xu, B.J. Ding, C.D. Hu, X.Z. Gong, J.L. Chen, L.Q. Hu