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@ARTICLE{Tang:904079,
      author       = {Tang, T. and Zeng, L. and Chen, D. and Sun, Y. and Zhao, H.
                      and Zhou, T. and Ti, A. and Lin, S. and Zhou, R. and Zhu, X.
                      and Qian, J. and Liu, H. and Jie, Y. and Liang, Yunfeng and
                      Gao, X.},
      title        = {{R}unaway electron generation and loss in {EAST}
                      disruptions},
      journal      = {Nuclear fusion},
      volume       = {61},
      number       = {7},
      issn         = {0029-5515},
      address      = {Vienna},
      publisher    = {IAEA},
      reportid     = {FZJ-2021-05649},
      pages        = {076003 -},
      year         = {2021},
      note         = {kein Zugriff auf Postprint},
      abstract     = {Runaway currents have been detected during unintended
                      disruptions in the circular plasma with the limiter
                      configuration in the Experimental Advanced Superconducting
                      Tokamak (EAST). The runaway electron (RE) plateau can carry
                      up to $80\%$ of the pre-disruption plasma current. The
                      highest runaway currents correspond to the lowest loop
                      voltage, which is contrary to the observations made in most
                      tokamaks. This anomalous behavior is attributed to the
                      acceleration of the pre-existing wave resonant suprathermal
                      electrons by lower hybrid waves during the disruption decay
                      phase. Two distinct types of RE-related relaxation
                      phenomena, distinguished on the basis of the amplitude of
                      the magnetic fluctuations, have been found during the
                      disruptions. Large-amplitude magnetohydrodynamic activity
                      with indications of RE loss is observed during the RE
                      plateau when the edge safety factor decreases to less than
                      3, and the external kink mode is discussed to resolve this
                      anomaly. Burst-like relaxations with small-amplitude
                      magnetic fluctuations and ∼0.6 kHz frequency are confirmed
                      from the spikes in the hard x-ray array signals under a
                      negative loop voltage. Measurement of the RE energy
                      distribution suggests that the instability is driven by
                      medium-energy REs.},
      cin          = {IEK-4},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IEK-4-20101013},
      pnm          = {134 - Plasma-Wand-Wechselwirkung (POF4-134)},
      pid          = {G:(DE-HGF)POF4-134},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000655613000001},
      doi          = {10.1088/1741-4326/abf62f},
      url          = {https://juser.fz-juelich.de/record/904079},
}