Understanding the reduction of the edge safety factor during hot VDEs and fast edge cooling events.

@article{Artola2020UnderstandingTR,
  title={Understanding the reduction of the edge safety factor during hot VDEs and fast edge cooling events.},
  author={F. J. Artola and Karl Lackner and G. T. A. Huijsmans and M. Hoelzl and Eric Nardon and Alberto Loarte},
  journal={arXiv: Plasma Physics},
  year={2020}
}
  • F. J. Artola, Karl Lackner, +3 authors Alberto Loarte
  • Published 2020
  • Physics
  • arXiv: Plasma Physics
  • In the present work a simple analytical approach is presented in order to clarify the physics behind the edge current density behaviour of a hot plasma entering in contact with a resistive conductor. When a plasma enters in contact with a highly resistive wall, large current densities appear at the edge of the plasma. The model shows that this edge current originates from the plasma response, which attempts to conserve the poloidal magnetic flux ($\Psi$) when the outer current is being lost… CONTINUE READING

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