The redistribution of metals on the JET vessel wall

Wall long term samples (LTS) which were exposed during the 1984 and 1985 operational periods of JET have been investigated by means of surface analysis techniques. The results indicate that deposition of wall material (Fe, Cr, Ni) and its distribution on the vessel wall were strongly affected by wal...

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Bibliographic Details
Published in:Journal of nuclear materials 1987-02, Vol.145, p.741-746
Main Authors: Ehrenberg, J., Behrisch, R., Coad, J.P., De Kock, L., Goodall, D.H.J., McCracken, G.M., Martinelli, A.P.
Format: Article
Language:English
Subjects:
tokamak impurities
wall erosion
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Summary:Wall long term samples (LTS) which were exposed during the 1984 and 1985 operational periods of JET have been investigated by means of surface analysis techniques. The results indicate that deposition of wall material (Fe, Cr, Ni) and its distribution on the vessel wall were strongly affected by wall erosion on bellows protection plates during unstable discharge phases. Erosion sources and deposition sinks are spatially correlated indicating that most of the eroded material is deposited close to its source.
ISSN:0022-3115
1873-4820
DOI:10.1016/0022-3115(87)90437-5