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@ARTICLE{Yuan:836443,
      author       = {Yuan, Yi and Hu, Liqun and Xu, Liqing and Wang, Xiaoguang
                      and Wang, Xiaojie and Xu, Handong and Luo, Zhengping and
                      Chen, Kaiyun and Lin, Shiyao and Duan, Yanmin and Chang,
                      Pengxiang and Zhao, Hailin and He, Kaiyang and Liang,
                      Yunfeng},
      title        = {{C}ontrol of sawtooth via {ECRH} on {EAST} tokamak},
      journal      = {Physics of plasmas},
      volume       = {23},
      number       = {6},
      issn         = {1089-7674},
      address      = {[S.l.]},
      publisher    = {American Institute of Physics},
      reportid     = {FZJ-2017-05564},
      pages        = {062503 -},
      year         = {2016},
      abstract     = {Localized electron heating produced by electron cyclotron
                      resonant heating (ECRH) system has been proven to be
                      powerful tools for controlling sawtooth instabilities,
                      because such system allows to directly modify the local
                      plasma parameters that determine the evolution of sawtooth
                      periods. In this paper, we present the experimental results
                      carried out on experimental advanced superconducting tokamak
                      (EAST) with regard to sawtooth period control via ECRH. The
                      electron cyclotron heating system on EAST was capable of
                      inject electron cyclotron wave toward certain locations
                      inside or outside q = 1 magnetic surface on the poloidal
                      cross section, which renders us able to investigate the
                      evolution of sawtooth period against the ECRH deposition
                      position. It is found that when ECRH deposition position is
                      inside the q = 1 surface, the sawtooth oscillation is
                      destabilized (characterized by reduced sawtooth period). So
                      far, inside the q = 1 surface, there are not enough EAST
                      experiment data that can reveal more detailed information
                      about the relation between ECRH deposition position and
                      sawtooth period. When ECRH deposition is outside the
                      q = 1 surface, the sawtooth oscillation is stabilized
                      (characterized by prolonged sawtooth period), and the
                      sawtooth periods gradually decrease as ECRH deposition
                      position sweeps away from q = 1 surface. The sawtooth
                      periods reach maximum when ECRH deposition position falls
                      around q = 1 surface. The magnetic shear at q = 1
                      surface is calculated to offer insights for the temporal
                      evolution of sawtooth. The result has been found consistent
                      with the Porcelli model},
      cin          = {IEK-4},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IEK-4-20101013},
      pnm          = {174 - Plasma-Wall-Interaction (POF3-174)},
      pid          = {G:(DE-HGF)POF3-174},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000379172200054},
      doi          = {10.1063/1.4953605},
      url          = {https://juser.fz-juelich.de/record/836443},
}