@article{oai:nifs-repository.repo.nii.ac.jp:00010759,
 author = {YOSHIMURA,  Yasuo and KASAHARA,  Hirofumi and TOKITANI,  Masayuki and SAKAMOTO,  Ryuichi and Ueda, Y. and MARUSHCHENKO,  Nikolai B. and SEKI,  Ryosuke and KUBO,  Shin and SHIMOZUMA,  Takashi and IGAMI,  Hiroe and TAKAHASHI,  Hiromi and TSUJIMIRA, Toru and TSUJIMURA, Toru Ii and MAKINO,  Ryohei and KOBAYASHI,  Sakuji and ITO,  Satoshi and MIZUNO,  Yoshinori and OKADA,  Kohta and AKIYAMA,  Tsuyoshi and TANAKA,  Kenji and TOKUZAWA,  Tokihiko and YAMADA,  Ichihiro and YAMADA, Hiroshi and MUTOH,  Takashi and TAKEIRI,  Yasuhiko and LHD, Experiment Group},
 issue = {2},
 journal = {Plasma Physics and Controlled Fusion},
 month = {Dec},
 note = {0000-0001-6744-1829, The long pulse experiments in the Large Helical Device has made progress in sustainment of improved confinement states. It was found that steady-state sustainment of the plasmas with improved confinement at the core region, that is, electron internal transport barrier (e-ITB), was achieved with no significant difficulty. Sustainment of a plasma having e-ITB with the line average electron density ne_ave of 1.1 × 1019 m−3 and the central electron temperature Te0 of ∼3.5 keV for longer than 5 min only with 340 kW ECH power was successfully demonstrated.},
 title = {Stable sustainment of plasmas with electron internal transport barrier by ECH in the LHD},
 volume = {60},
 year = {2017}
}