Research and Development of 2-frequency (110/138 GHz) FADIS for JT-60SA ECHCD systemH. Idei, S. Moriyama, T. Kobayashi, A. Isayama, M. Sakaguchi and W. KasparekEPJ Web of Conferences, 87 (2015) 04009DOI: https://doi.org/10.1051/epjconf/20158704009