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. (Review of scientific instruments, 2012)

(untitled) - Ogasawara, S; Kubo, S; Nishiura, M; Tatematsu, Y; Saito, T; Tanaka, K; Shimozuma, T; Yoshimura, Y; Igami, H; Takahashi, H; Ito, S; Takita, Y; et al.