Electromagnetic Models of Plasma Breakdown in the JET Tokamak

Author

Maviglia, F. ; Albanese, R. ; de Magistris, M. ; Lomas, Peter J. ; Minucci, S. ; Rimini, F.G. ; Sips, A.C.C. ; de Vries, Peter C.

Author_Institution

EURATOM-ENEA-CREATE, Univ. of Naples Federico II, Naples, Italy

Volume

50

Issue

2

fYear

2014

fDate

Feb. 2014

Firstpage

937

Lastpage

940

Abstract

This paper presents the electromagnetic modeling of the plasma current breakdown phase of the JET tokamak. The first part of this paper models the presence of the JET iron core up-down asymmetry and the effects of the eddy currents in the reconstruction of the magnetic topology needed for the plasma start. The second part describes the approach used to evaluate the ionized particle connection length inside the vacuum chamber at breakdown. The results obtained are validated using JET experimental measurements.

Keywords

Tokamak devices; eddy currents; electric breakdown; plasma toroidal confinement; JET experimental measurements; JET iron core up-down asymmetry; JET tokamak; eddy currents; electromagnetic modeling; ionized particle connection length; magnetic topology; plasma current breakdown phase; vacuum chamber; Electric breakdown; Integrated circuit modeling; Ionization; Magnetic circuits; Tokamaks; Toroidal magnetic fields; Electric breakdown; electromagnetic modeling; plasma confinement; tokamak;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2013.2282351

Filename

6749096