@techreport{oai:nifs-repository.repo.nii.ac.jp:00009883,
 author = {Komori,  A. and Yamada,  H. and Kaneko,  O. and Kawahata,  K. and Mutoh,  T. and Ohyabu,  N. and Imagawa,  S. and Ida,  K. and Nagayama,  Y. and Shimozuma,  T. and Watanabe,  K. Y. and Mito,  T. and Kobayashi,  M. and Nagaoka,  K. and Sakamoto,  R. and Yoshida,  N. and Ohdachi,  S. and Sakakibara,  S. and Ashikawa,  N. and Feng,  Y. and Fukuda,  T. and Igami,  H. and Inagaki,  S. and Kasahara,  H. and Kubo,  S. and Kumazawa,  R. and Mitarai,  O. and Murakami,  S. and Nakamura,  Y. and Nishiura,  M. and Hino,  T. and Masuzaki,  S. and Tanaka,  K. and Toi,  K. and Weller,  A. and Yoshinuma,  M. and Narushima,  Y. and Ohno,  N. and Okamura,  T. and Tamura,  N. and Saito,  K. and Seki,  T. and Sudo,  S. and Tanaka,  H. and Tokuzawa,  T. and Yanagi,  N. and Yokoyama,  M. and Yoshimura,  Y. and Akiyama,  T. and Chikaraishi,  H. and Chowdhuri,  M. and Emoto,  M. and Ezumi,  N. and Funaba,  H. and Garcia,  L. and Goncharov,  P. and Goto,  M. and Ichiguchi,  K. and Ichimura,  M. and Idei,  H. and Ido,  T. and Iio,  S. and Ikeda,  K. and Irie,  M. and Isayama,  A. and Ishigooka,  T. and Isobe,  M. and Ito,  T. and Itoh,  K. and Iwamae,  A. and Hamaguchi,  S. and Hamajima,  K. and Kitajima,  S. and Kado,  S. and Kato,  D. and Kato,  T. and Kobayashi,  S. and Kondo,  K. and Masamune,  S. and Matsumoto,  Y. and Matsunami,  N. and Minami,  T. and Michael,  C. and Miura,  H. and Miyazawa,  J. and Mizuguchi,  N. and Morisaki,  T. and Morita,  S. and Motojima,  G. and Murakami,  I. and Muto,  S. and Nagasaki,  K. and Nakajima,  N. and Nakamura,  Y. and Nakanishi,  H. and Nakano,  H. and Narihara,  K. and Nishimura,  A. and Nishimura,  H. and Nishimura,  K. and Nishimura,  S. and Nishino,  N. and Notake,  T. and Obana,  T. and Ogawa,  K. and Oka,  Y. and Ohishi,  T. and Okada,  H. and Okuno,  K. and Ono,  K. and Osakabe,  M. and Osako,  T. and Ozaki,  T. and Peterson,  B.J. and Sakaue,  H. and Sasao,  M. and Satake,  S. and Sato,  K. and Sato,  M. and Shimizu,  A. and Shiratani,  M. and Shoji,  M. and Sugama,  H. and Suzuki,  C. and Suzuki,  Y. and Takahata,  K. and Takahashi,  H. and Takase,  Y. and Takeiri,  Y. and Takenaga,  H. and Toda,  S. and Todo,  Y. and Tokitani,  M. and Tsuchiya,  H. and Tsumori,  K. and Urano,  H. and Veshchev,  E. and Watanabe,  F. and Watanabe,  T. and Watanabe,  T. H. and Yamada,  I. and Yamada,  S.},
 month = {Aug},
 note = {Remarkable progress in the physical parameters of net-current free plasmas has been made in the Large Helical Device (LHD) since the last Fusion Energy Conference in Chengdu, 2006 (O.Motojima et al., Nucl. Fusion 47 (2007) S668). The beta value reached 5 % and a high beta state beyond 4.5% from the diamagnetic measurement has been maintained for longer than 100 times the energy confinement time. The density and temperature regimes also have been extended. The central density has exceeded 1.0 x 10^21 m^-3 due to the formation of an Internal Diffusion Barrier (IDB). The ion temperature has reached 6.8 keV at the density of 2 x 10^19m^-3, which is associated with the suppression of ion heat conduction loss. Although these parameters have been obtained in separated discharges, each fusion-reactor relevant parameter has elucidated the potential of net-current free heliotron plasmas. Diversified studies in recent LHD experiments are reviewed in this paper.},
 title = {Development of Net-Current Free Heliotron Plasmas in the  Large Helical Device},
 year = {2008}
}