Electromagnetic analysis of a shielded gap for the RFX conducting shell

The numerical analyses carried out to assess the effectiveness of an electromagnetic shield are presented in the paper. The shield should-reduce the field errors on the magnetic configuration due to the gaps of a conducting shell of a nuclear fusion device, already in operation. The shield dimension...

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Bibliographic Details
Published in:IEEE transactions on magnetics 1995-11, Vol.31 (6), p.3533-3535
Main Author: Zollino, G.
Format: Article
Language:English
Subjects:
Eddy currents
Electromagnetic analysis
Electromagnetic shielding
Finite element methods
Fusion reactors
Magnetic devices
Magnetic field measurement
Magnetic shielding
Numerical analysis
Plasma measurements
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Summary:The numerical analyses carried out to assess the effectiveness of an electromagnetic shield are presented in the paper. The shield should-reduce the field errors on the magnetic configuration due to the gaps of a conducting shell of a nuclear fusion device, already in operation. The shield dimensions are limited by other components, so the actual effectiveness had to be accurately computed. The finite element method was used for 3-D eddy current analysis and the results were compared with measurements on the actual shell. The stray magnetic field in the plasma region with the shielded gap was 30% lower than with the unshielded gap.
ISSN:0018-9464
1941-0069
DOI:10.1109/20.489560