Effect of the external helical fields on the plasma boundary shape in JET
Journal article, 2014

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.

plasma boundary reconstruction

STABILIZATION

external magnetic

fields

HIGH-BETA

JET

RESISTIVE-WALL MODES

tokamak

3D equilibrium

DIII-D PLASMAS

Author

Dimitriy Yadykin

Chalmers, Earth and Space Sciences, Plasma Physics and Fusion Energy

M. Gryaznevich

Culham Lab

Technical University of Denmark (DTU)

L. Frasinetti

Royal Institute of Technology (KTH)

S. Gerasimov

Culham Lab

Nuclear Fusion

0029-5515 (ISSN)

Vol. 54 1 6- 013016

Subject Categories

Fusion, Plasma and Space Physics

DOI

10.1088/0029-5515/54/1/013016

More information

Latest update

2/28/2018