@techreport{oai:nifs-repository.repo.nii.ac.jp:00009903, author = {"Kubo, S. and Shimozuma, T. and Idei, H. and Yoshimura, Y. and Notake, T. and Sato, M. and Ohkubo, K. and Watari, T. and Yamada, I. and Inagaki, S. and Nagayama, Y. and Murakami, S. and Muto, S. and Yokoyama, M. and Ohyabu, N. and Ida, K. and Kawahata, K. and Kaneko, O. and Komori, A. and Mutoh, T. and Nakamura, Y. and Yamada, H. and Akiyama, T. and Ashikawa, N. and Emoto, M. and Funaba, H. and Goncharov, P. and Ikeda, K. and Isobe, M. and Kawazome, H. and Khlopenkov, K. and Kobuchi, T. and Kostrioukov, A. and Kumazawa, R. and Liang, Y. and Masuzaki, S. and Minami, T. and Miyazawa, J. and Morisaki, T. and Morita, S. and Nakanishi, H. and Narushima, Y. and Nishimura, K. and Noda, N. and Nozato, H. and Ohdachi, S. and Oka, Y. and Osakabe, M. and Ozaki, T. and Peterson, B. J. and Sagara, A. and Saida, T. and Saito, K. and Sakakibara, S. and Sakamoto, R. and Sasao, M. and Sato, K. and Seki, T. and Shoji, M. and Suzuki, H. and Takeuchi, N. and Tamura, N. and Tanaka, K. and Toi, K. and Tokuzawa, T. and Torii, Y. and Tsumori, K. and Watanabe, K. Y. and Xu, Y. and Yamamoto, S. and Yamamoto, T. and Yoshinuma, M. and Itoh, K. and Satow, T. and Sudo, S. and Uda, T. and Yamazaki, K. and Matsuoka, K. and Motojima, O. and Hamada, Y. and Fujiwara, M. and Goto, M. and Narihara, K. and Takeiri, Y."}, month = {Oct}, note = {"In the past three years, the LHD [1] has revealed confinement properties as good as those of tokamaks. And achieved beta value of 3.2% has been attained, satisfying necessary condition to be a candidate for a reactor core [2]. However, a fundamental question remains; whether or not such high performance is maintained in a collisionless regime as the electron temperature gets higher. Indeed, the electron temperature remained below 4keV for the past 3 years as if it were caught in the vicious dependence that the energy confinement time is proportional to T_e^-7/2 as predicted in the neoclassical theory without electric field. This paper reports that a plasma of 10keV was achieved in the 5th campaign of the LHD, carried out in 2001, resolving such a concern and opening a new regime of extremely low collisionality. This regime of high T_e has the features of the ITB and is obtained by achieving special experimental conditions."}, title = {Transport Barrier Formation by Application of Localized ECH in the LHD}, year = {2002} }