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Tokamak Start-up pp 317–323Cite as

Wall Protection in JET

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Part of the book series: Ettore Majorana International Science Series ((EMISS))

Abstract

JET has operated initially with graphite limiters and Inconel walls. An inspection after twelve months of operation showed damage to the inner wall, mainly due to runaway electrons. About 1 kg of Inconel was melted. To inhibit this source of metal contamination of the plasma — metal droplets were deposited on the limiters — 20 m2 of graphite tiles were installed at the inner wall. They will also act as protection against beam shine-through as soon as neutral injection becomes available.

supported by National Research Council of Canada

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References

  1. Dietz, K.J. et. al, 1984, Start up and Initial Operation of JET J. Nucl. Mat. 128 & 129 (1984), 10

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  2. McCracken, G.M., and Stott, P.E., 1979, Plasma Surface Interactions in Tokamaks, Nuclear Fusion, Vol. 19, No. 7 (1979)

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  3. Waelbroeck, F., Winter, J., and Wienhold, P., 1984, Cleaning and Conditioning of the Walls of Plasma Devices by Glow Discharges in Hydrogen, J. Vac. Sci. Technol. A2 (4), 1984

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  4. Rebut, P.H., 1976, The JET Project, EUR-JET-R5 Commission of the European Communities 1976

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  5. Duesing, G., 1983, Construction and Commissioning of JET the Joint European Torus, Proc. IX Int. Vac. Congr, (1983)

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  6. Gibson, A., 1985, JET, private communication

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Author information

Authors and Affiliations

  1. JET Joint Undertakings, Abingdon, UK

    K. J. Dietz, K. Sonnenberg, E. Deksnis & R. Shaw

Authors
  1. K. J. Dietz
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  2. K. Sonnenberg
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  3. E. Deksnis
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  4. R. Shaw
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Editor information

Editors and Affiliations

  1. Association EURATOM-ENEA, Frascati, Italy

    Heinz Knoepfel

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© 1986 Springer Science+Business Media New York

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Dietz, K.J., Sonnenberg, K., Deksnis, E., Shaw, R. (1986). Wall Protection in JET. In: Knoepfel, H. (eds) Tokamak Start-up. Ettore Majorana International Science Series. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-1889-8_20

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  • DOI: https://doi.org/10.1007/978-1-4757-1889-8_20

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4757-1891-1

  • Online ISBN: 978-1-4757-1889-8

  • eBook Packages: Springer Book Archive

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