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| Hauptseite > Publikationsdatenbank > Magnetic islands observed by a fast-framing tangentially viewing soft x-ray camera on LHD and TEXTOR |
| Hauptseite > Publikationsdatenbank > Magnetic islands observed by a fast-framing tangentially viewing soft x-ray camera on LHD and TEXTOR |
| Journal Article | PreJuSER-57329 |
; ; ; ;
2006
IOP
Bristol
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Please use a persistent id in citations: doi:10.1088/1009-0630/8/1/11
Abstract: The formation of magnetic islands within plasmas confined magnetically within the tori has significant influence upon their confinement and stability. To obtain an experimental insight into the formation and dynamics of such island structures we employed a fast framing camera viewing the plasma tangentially in the toroidal direction. The toroidal viewing direction gives the advantage in that the islands are viewed almost tangentially and this greatly facilitates the reconstruction of the local data from the line integrated ones. We discuss an effective method to do inversion. To study the fluctuations seen in the video images we perform a singular value decomposition, and then we use a truncated least square method to infer their pictures in space.
Keyword(s): J ; magnetic island (auto) ; fluctuation measurement (auto) ; tomography (auto)
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