Effect of the external helical fields on the plasma boundary shape in JET

D. Yadykin, M. Gryaznevich, L. Frasinetti, S. Gerasimov

Research output: Contribution to journalJournal articleResearchpeer-review


Externally applied helical magnetic fields are now often used on tokamaks for various purposes. This paper presents results of studies of the effect of the external fields, produced by the error field correction coils (EFCCs) on JET, on the plasma boundary shape. Significant 3D distortions, predicted in the previous studies, have been confirmed using upgraded magnetic diagnostics and high-resolution Thomson scattering diagnostics. A simple method of estimating the edge distortion using magnetic diagnostics calibrated on the kinetic measurements is proposed and demonstrated. © 2014 EURATOM.
Original languageEnglish
Article number013016
JournalNuclear Fusion
Issue number1
Number of pages6
Publication statusPublished - 2014
Externally publishedYes


  • Condensed Matter Physics
  • Nuclear and High Energy Physics
  • 3D equilibrium
  • external magnetic fields
  • JET
  • plasma boundary reconstruction
  • tokamak
  • External magnetic field
  • High resolution
  • Kinetic measurement
  • Magnetic diagnostic
  • Plasma boundary
  • Plasma boundary reconstruction
  • Thomson scattering diagnostics
  • Jets
  • Magnetic fields
  • Magnetoplasma
  • Three dimensional
  • Tokamak devices


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