Real-time plasma boundary reconstruction in the KSTAR tokamak using finite element method

A study is carried out on the real-time plasma shape identification in the KSTAR device. An improved form of the finite current element (FCE) method is utilized in this study. Results are shown that the plasma boundary can be reproduced in 7 mm accuracy for any plasma configuration in ideal cases wi...

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Bibliographic Details
Published inFusion engineering and design Vol. 82; no. 2; pp. 163 - 174
Main Authors Tsaun, S., Jhang, Hogun
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.02.2007
Subjects
Boundary reconstruction
KSTAR
Magnetic diagnostics
Tokamak
Tokamak
KSTAR
Magnetic diagnostics
Boundary reconstruction
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Summary:A study is carried out on the real-time plasma shape identification in the KSTAR device. An improved form of the finite current element (FCE) method is utilized in this study. Results are shown that the plasma boundary can be reproduced in 7 mm accuracy for any plasma configuration in ideal cases without invoking measurement errors. A design guideline for magnetic diagnostics (MD) is established when the measurement signals are subject to Gaussian noise. It is found that the measurement errors in poloidal field (PF) coil currents have substantial influence on the determination of the plasma shape.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0920-3796
1873-7196
DOI:10.1016/j.fusengdes.2006.09.003