title: Rotation characteristics during the resonant magnetic perturbation induced edge localized mode suppression on the KSTAR.
abstract: Measuring rotation profiles with a reliable spatial resolution is one of the critical diagnostics in understanding the plasma behavior especially for the edge transport. In the KSTAR experiments, it has been consistently observed from the charge exchange spectroscopy measurements that the magnetic perturbations not only suppresses edge localized modes (ELMs) but also reduces toroidal rotations. In this paper, toroidal velocities of the carbon impurity and their profile evolutions during ELMy and ELM-suppressed phases are presented. The rotation profiles are shown to collapse immediately after an ELM burst and continue to build up until the next burst that accompanies another collapse. Toroidal rotations following the resonant magnetic perturbations applications are observed to be reduced along with the ELMs suppressed.
authors.affiliation: National Fusion Research Institute, Daejeon, South Korea.
authors.forename: Won-Ha
authors.initials: WH
authors.lastname: Ko
authors.affiliation: National Fusion Research Institute, Daejeon, South Korea.
authors.forename: H H
authors.initials: HH
authors.lastname: Lee
authors.affiliation: National Fusion Research Institute, Daejeon, South Korea.
authors.forename: Y M
authors.initials: YM
authors.lastname: Jeon
authors.affiliation: National Institute for Fusion Science, Nagoya, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Ida
authors.affiliation: National Fusion Research Institute, Daejeon, South Korea.
authors.forename: J H
authors.initials: JH
authors.lastname: Lee
authors.affiliation: National Fusion Research Institute, Daejeon, South Korea.
authors.forename: S W
authors.initials: SW
authors.lastname: Yoon
authors.affiliation: National Fusion Research Institute, Daejeon, South Korea.
authors.forename: K D
authors.initials: KD
authors.lastname: Lee
authors.affiliation: National Fusion Research Institute, Daejeon, South Korea.
authors.forename: Y S
authors.initials: YS
authors.lastname: Bae
authors.affiliation: National Fusion Research Institute, Daejeon, South Korea.
authors.forename: Y K
authors.initials: YK
authors.lastname: Oh
authors.affiliation: National Fusion Research Institute, Daejeon, South Korea.
authors.forename: J G
authors.initials: JG
authors.lastname: Kwak