@techreport{oai:nifs-repository.repo.nii.ac.jp:00010165,
 author = {"Sakakibara,  S. and Yamada,  H. and Watanabe,  K. Y. and Narushima,  Y. and Toi,  K. and Ohdachi,  S. and Takichi,  M. and Yamamoto,  S. and Narihara,  K. and Tanaka,  K. and Ashikawa,  N. and deVaries,  P. and Emoto,  M. and Funaba,  H. and Goto,  M. and Ida,  K. and Idei,  H. and Ikeda,  K. and Inagaki,  S. and Inoue,  N. and Isobe,  M. and Kado,  S. and Kaneko,  O. and Kawahata,  K. and Khlopenkov,  K. and Komori,  A. and Kubo,  S. and Kumazawa,  R. and Minami,  T. and Miyazawa,  J. and Morisaki,  T. and Morita,  S. and Murakami,  S. and Muto,  S. and Mutoh,  T. and Nagayama,  Y. and Nakamura,  Y. and Nakanishi,  H. and Nishimura,  K. and Noda,  N. and Notake,  T. and Kobuchi,  T. and Liang,  Y. and Ohyabu,  N. and Oka,  Y. and Osakabe,  M. and Ozaki,  T. and Pavlichenko,  R. O. and Peterson,  B. J. and Sagara,  A. and Saito,  K. and Sakamoto,  R. and Sasao,  H. and Sasao,  M. and Sato,  K. and Sato,  M. and Seki,  T. and Shimozuma,  T. and Shoji,  M. and Suzuki,  H. and Takeiri,  Y. and Tamura,  N. and Tokuzawa,  T. and Torii,  Y. and Tsumori,  K. and Yamada,  I. and Yamaguchi,  S. and Yokoyama,  M. and Yoshimura,  Y. and Watari,  T. and Ichiguchi,  K. and Takahashi,  H. and W., Cooper, A. and Yamazaki,  K. and Motojima,  O. and Hamada,  Y. and Fujiwara,  M. and Masuzaki,  S. and Nakajima,  N."},
 month = {Sep},
 note = {The highest volume averaged beta value beta_t of 2.2% at B_t = 0.75 T (gas puff) and 2.4 % at B_t = 1.3 T (pellet) in all of helical devices have been achieved in the Large Helical Device (LHD). The beta_t dependence of MHD activities has been investigated in NBI plasmas. The n/m = l/2 mode excited in the core region and / = l resonant modes in peripheral region have been observed. Both of the fluctuation amplitudes increase with beta_t and the pressure gradient. The strong n/m = l/2 mode which affects plasma profile have been observed in high-beta_t discharges and the abrupt disappearance of the mode leads to the restoration of T_e profile. Violent instabilities which terminate the plasma and degradation of global energy confmement have not been observed so far.},
 title = {MHD Characteristics in High-beta Regime of the Large Helical Device},
 year = {2000}
}