The development of A 77-GHz, 1-MW ECRH system for the Large Helical Device od Takahashi, H, Shimozuma, T, Kubo, S, Ito, S, Kobayashi, S, Yoshimura, Y, Igami, H, Mizuno, Y, Takita, Y, Mutoh, T, Kariya, T, Minami, R, Imai, T

Progress of a multi-megawatt gyrotron system for electron cyclotron heating on the large helical device od Shimozuma, T, Kubo, S, Yoshimura, Y, Igami, H, Takahashi, H, Kobayashi, S, Ito, S, Mizuno, Y, Okada, K, Takita, Y, Mutoh, T, Idei, H, Minami, R, Kariya, T, Imai, T

High power and high efficiency operation of 77 GHz gyrotrons by stepwise raising of the anode voltage od Takahashi, H, Shimozuma, T, Ito, S, Kubo, S, Yoshimura, Y, Igami, H, Nishiura, M, Kobayashi, S, Mizuno, Y, Okada, K, Takita, Y, Ogasawara, S, Makino, R, Mutoh, T, Kariya, T, Minami, R, Imai, T

Ecrh-related technologies for high-power and steady-state operation in LHD od Shimozuma, T, Takahashi, H, Kubo, S, Yoshimura, Y, Igami, H, Takita, Y, Kobayashi, S, Ito, S, Mizuno, Y, Idei, H, Notake, T, Sato, M, Ohkubo, K, Watari, T, Mutoh, T, Minami, R, Kariya, T, Imai, T

Suppression of spurious mode oscillation in mega-watt 77-GHz gyrotron as a high quality probe beam source for the collective Thomson scattering in LHD. od Ogasawara, S, Kubo, S, Nishiura, M, Tatematsu, Y, Saito, T, Tanaka, K, Shimozuma, T, Yoshimura, Y, Igami, H, Takahashi, H, Ito, S, Takita, Y, Kobayashi, S, Mizuno, Y, Okada, K, Minami, R, Kariya, T, Imai, T

Optimization of megawatt 77-GHz gyrotron operation for collective thomson scattering in LHD od Ogasawara, S, Kubo, S, Nishiura, M, Tatematsu, Y, Saito, T, Tanaka, K, Shimozuma, T, Yoshimura, Y, Igami, H, Takahashi, H, Ito, S, Makino, R, Kobayashi, S, Mizuno, Y, Okada, K, Minami, R, Kariya, T, Imai, T

Identification of spurious modes of high-power 77-GHz gyrotron for collective thomson scattering in LHD od Ogasawara, S, Kubo, S, Nishiura, M, Tatematsu, Y, Saito, T, Tanaka, K, Shimozuma, T, Yoshimura, Y, Igami, H, Takahashi, H, Ito, S, Takita, Y, Kobayashi, S, Mizuno, Y, Okada, K, Minami, R, Kariya, T, Imai, T

Optimization of high power and high efficiency operation of 77GHz gyrotrons for ECRH in the large helical device od Shimozuma, T, Takahashi, H, Ito, S, Kobayashi, S, Kubo, S, Yoshimura, Y, Igami, H, Nishiura, M, Ogasawara, S, Makino, R, Mizuno, Y, Okada, K, Takita, Y, Ito, Y, Mutoh, T, Minami, R, Kariya, T, Imai, T

Development of high-power, long-pulse gyrotrons and its application for high electron temperature, EBWH and ECCD experiments on LHD od Yoshimura, Y, Kubo, S, Shimozuma, T, Igami, H, Takahashi, H, Nishiura, M, Ito, S, Kobayashi, S, Mizuno, Y, Okada, K, Takita, Y, Mutoh, T, Yamada, H, Komori, A, Kariya, T, Imai, T, Marushchenko, N, Turkin, Y

Activities on realization of high-power and steady-state ECRH system and achievement of high performance plasmas in LHD od Shimozuma, T, Kubo, S, Yoshimura, Y, Igami, H, Takahashi, H, Ikeda, R, Tamura, N, Kobayashi, S, Ito, S, Mizuno, Y, Takita, Y, Mutoh, T, Minami, R, Kariya, T, Imai, T, Idei, H, Shapiro, M, Temkin, R, Felici, F, Goodman, T, Sauter, O