Dynamical coupling between gradients and transport in fusion plasmas Articles uri icon

authors

  • HIDALGO, C.
  • SILVA, C.
  • CARRERAS, B.A.
  • VAN MILLIGEN, B.
  • FIGUEIREDO, H.
  • GARCIA GONZALO, LUIS
  • PEDROSA, M.A.
  • GONÇALVES, B.
  • ALONSO, A.

publication date

  • February 2012

start page

  • 1

end page

  • 4

issue

  • 6 (065001)

volume

  • 108

International Standard Serial Number (ISSN)

  • 0031-9007

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

abstract

  • The dynamical coupling between density gradients and particle transport has been investigated using similar experimental tools in the plasma boundary of different tokamak (JET, ISTTOK) and stellarator (TJ-II) devices, showing that the size of turbulent events is minimum in the proximity of the most probable density gradient. Experimental results were found to be consistent with results from two very different models of plasma turbulence and transport. The present findings, common to several plasma devices, suggest the importance of self-regulation mechanisms between plasma transport and gradients in fusion devices.