R . O . Pavlichenko

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This paper describes innovative laser diagnostics under development at the National Institute for Fusion Science, aiming for the establishment of reliable density measurement techniques in the next step magnetically confined fusion devices. There are two approaches, interferometry and polarimetry. A new type of two color laser (47.6/57.2-μm CH3OD)(More)
Recent large helical device experiments revealed that the transition from ion root to electron root occurred for the first time in neutral-beam-heated discharges, where no nonthermal electrons exist. The measured values of the radial electric field were found to be in qualitative agreement with those estimated by neoclassical theory. A clear reduction of(More)
K.Ida, H.Funaba, S.Kado1), K.Narihara, K.Tanaka, Y.Takeiri, Y.Nakamura, N.Ohyabu, K.Yamazaki, M.Yokoyama, S.Murakami, N.Ashikawa, P.deVaries, M.Emoto, M.Goto, H.Idei, K.Ikeda, S.Inagaki, N.Inoue, M.Isobe, K.Itoh, O.Kaneko, K.Kawahata, K.Khlopenkov, A.Komori, S.Kubo, R.Kumazawa, Y.Liang2), S.Masuzaki, T.Minami, J.Miyazawa, T.Morisaki, S.Morita, T.Mutoh,(More)
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