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Effect of the external helical fields on the plasma boundary shape in JET
KTH, School of Electrical Engineering (EES), Fusion Plasma Physics.ORCID iD: 0000-0002-9546-4494
2014 (English)In: Nuclear Fusion, ISSN 0029-5515, E-ISSN 1741-4326, Vol. 54, no 1, 013016- p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2014. Vol. 54, no 1, 013016- p.
Keyword [en]
3D equilibrium, plasma boundary reconstruction, external magnetic fields, tokamak, JET
National Category
Fusion, Plasma and Space Physics
URN: urn:nbn:se:kth:diva-140668DOI: 10.1088/0029-5515/54/1/013016ISI: 000329427100020ScopusID: 2-s2.0-84891805576OAI: diva2:692309

QC 20140130

Available from: 2014-01-30 Created: 2014-01-30 Last updated: 2014-01-30Bibliographically approved

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Frasinetti, Lorenzo
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