@techreport{oai:nifs-repository.repo.nii.ac.jp:00010167,
 author = {Sakamoto,  R. and Kobayashi,  M. and Miyazawa,  J. and Ohdachi,  S. and Morisaki,  T. and Masuzaki,  S. and Yamada,  I. and Goto,  M. and Ida,  K. and Morita,  S. and Sakakibara,  S. and Tanaka,  K. and Watanabe,  K. Y. and Suzuki,  Y. and Funaba,  H. and Ashikawa,  N. and Nagayama,  Y. and Narushima,  Y. and Peterson,  B. J. and Shoji,  M. and Suzuki,  C. and Tokitani,  M. and Yoshimura,  S. and Ohyabu,  N. and Yamada,  H. and Komori,  A. and Motojima,  O. and LHD, experimental group},
 month = {Oct},
 note = {A attractive high density plasma operational regime, namely an internal diffusion barrier (IDB), has been discovered in the intrinsic helical divertor configuration on the Large Helical Device (LHD). The IDB which enables core plasma to access a high density/high pressure regime has been developed. It is revealed that the IDB is reproducibly formed by pellet fueling in the magnetic configurations shifted outward in major radius. Attainable central plasma density exceeds 1 x 10^21m^-3. Central pressure reaches 1.5 times atmospheric pressure and the central β value becomes fairly high even at high magnetic field, i.e. β(0) = 5.5% at Bt = 2.57 T.},
 title = {High Density High Performance Plasma with Internal Diffusion Barrier in Large Helical Device},
 year = {2008}
}