@article{oai:nifs-repository.repo.nii.ac.jp:00000355,
 author = {TAKEIRI,  Yasuhiko and YOKOYAMA,  Masayuki and NAGAOKA,  Kenichi and IDA,  Katsumi and KUBO,  Shin and SHIMOZUMA,  Takashi and FUNABA,  Hisamichi and OSAKABE,  Masaki and IKEDA,  Katsunori and TSUMORI,  Katsuyoshi and OKA,  Yashihide and YOSHINUMA,  Mikiro and MORITA,  Shigeru and GOTO,  Motoshi and NARIHARA,  Kazumichi and YAMADA,  Ichihiro and TANAKA,  Kenji and KANEKO,  Osamu and KOMORI,  Akio and LHD, Experimental Group},
 journal = {Plasma and Fusion Research},
 month = {Jan},
 note = {An increase in ion temperature has been observed with superposition of centrally focused electron cyclotron resonance heating (ECRH) to plasmas heated by high-energy neutral beam injection (NBI) in Large Helical Device. The ion-temperature (Ti) rise is accompanied by the formation of electron internal transport barrier (ITB). A transport analysis shows that ion transport as well as electron transport is improved with the reduction of anomalous transport. A neoclassical ambipolar flux calculation shows a positive radial-electric field (Er) in the region of the Ti  rise, and Er should suppress the enhancement of ripple transport due to the Ti-rise. These analyses indicate the ion transport improvement in the core electron-root confinement plasmas. Toroidal rotation is driven in the co-direction by applying ECRH, and the toroidal rotation velocity is increased with the Ti rise. A correlation between the Ti rise and toroidal rotation is suggested.},
 title = {Improvement of Ion Confinement in Core Electron-Root Confinement (CERC) Plasmas in Large Helical Device},
 volume = {Vol.3},
 year = {2008}
}