Current status of ECE system on EAST tokamak Hailin Zhao, Ang Ti, Tianfu Zhou, Zeying Zhu, Yong Liu, Bili Ling, Qing Zang, Juan Huang and Xianzu Gong EPJ Web Conf., 277 (2023) 03007 Published online: 23 February 2023 DOI: 10.1051/epjconf/202327703007