@article{oai:nifs-repository.repo.nii.ac.jp:00010499,
 author = {TOKUZAWA,  Tokihiko and TAKEMURA,  Yuki and TAKEMURA, Yuuki and WATANABE,  Kiyomasa and SAKAKIBARA,  Satoru and NARUSHIMA,  Yoshiro and TSUCHIYA,  Hayato and NAGAYAMA,  Yoshio and INAGAKI,  Shigeru and IDA,  Katsumi and YOSHINUMA,  Mikiro and YOSHINUMA,  Mikirou and TANAKA,  Kenji and SUZUKI,  Yasuhiro and YAMADA,  Ichihiro and LHD, Experiment Group},
 journal = {Nuclear Fusion},
 month = {May},
 note = {We report the first observation of the formation of a magnetic island before the occurrence of mode locking in helical plasma. New analysis and observation techniques applied to the ECE signal and poloidal flow in LHD experiments yield the following results. (i) A magnetic island structure is present, rotating at the end of the rotating phase. (ii) The rotation speed of the island is not uniform in space and time. The rotation of the island changes significantly at the end of the rotating phase, and the deformation increases until the mode is locked.},
 title = {Distorted magnetic island formation during slowing down to mode locking in helical plasmas},
 volume = {57},
 year = {2017}
}