High power and high efficiency operation of 77 GHz gyrotrons by stepwise raising of the anode voltage by 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

Optimization of megawatt 77-GHz gyrotron operation for collective thomson scattering in LHD by 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

Optimization of high power and high efficiency operation of 77GHz gyrotrons for ECRH in the large helical device by 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