@techreport{oai:nifs-repository.repo.nii.ac.jp:00009652,
 author = {Ida,  K. and Funaba,  H. and Kado,  S. and Narihara,  K. and Tanaka,  K. and Takeiri,  Y. and Nakamura,  Y. and Ohyabu,  N. and Yamazaki,  K. and Yokoyama,  M. and Murakami,  S. and Ashikawa,  N. and deVaries,  P. and Emoto,  M. and Goto,  M. and Idei,  H. and keda,  K. and Inagaki,  S. and Inoue,  N. and Isobe,  M. and Itoh,  K. and Kaneko,  O. and Kawahata,  K. and Khlopenkov,  K. and Komori,  A. and Kubo,  S. and Kumazawa,  R. and Liang,  Y. and Masuzaki,  S. and Minami,  T. and Miyazawa,  J. and Morisaki,  T. and Morita,  S. and Mutoh,  T. and Muto,  S. and Nagayama,  Y. and Nakanishi,  H. and Nishimura,  K. and Noda,  N. and Notake,  T. and Kobuchi,  T. and Ohdachi,  S. and Ohkubo,  K. and Oka,  Y. and Osakabe,  M. and Ozaki,  T. and Pavlichenko,  R. O. and Peterson,  B. J. and Sagara,  A. and Saito,  K. and Sakakibara,  S. and Sakamoto,  R. and Sanuki,  H. 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 Sudo,  S. and Tamura,  N. and Toi,  K. and Tokuzawa,  T. and Torii,  Y. and Tsumori,  K. and Yamamoto,  T. and Yamada,  H. and Yamada,  I. and Yamaguchi,  S. and Yamamoto,  S. and Yoshimura,  Y. and Watanabe,  K. Y. and Watari,  T. and Hamada,  Y. and Motojima,  O. and Fujiwara,  M.},
 month = {Sep},
 note = {Recent Large Helical Device (LHD) experiments revealed that the transition from ion root to electron root occurred for the first in neutral beam heated discharges, where there is no non-thermal electrons exist. The measured values of the radial electric field were found to be in qualitative agreement with those estimated by neoclassical theory.  For the configuration with a magnetic axis of 3.75m, where the ion transport loss was comparable to the neoclassical ion loss, a clear reduction of ion therrnal diffusivity was observed after the mode transition from ion root to electron root as predicted by neoclassical theory. On the other hand, for the inward shifted configuration (Rax=3.6m), where the neoclassical ion loss is reduced below the anomalous loss, no change in the ion thermal diffusivity was observed.},
 title = {Transition From Ion Root to Electron Root in NBI Heated Plasmas in LHD},
 year = {2000}
}