Studies of impurity deposition/implantation in JET divertor tiles using SIMS and ion beam techniques

Jari Likonen (Corresponding Author), Sari Lehto, J.P. Coad, T. Renvall, T. Sajavaara, T. Ahlgren, D.E. Hole, G.F. Matthews, J. Keinonen, EFDA-JET work-programme

    Research output: Contribution to journalArticleScientificpeer-review

    54 Citations (Scopus)

    Abstract

    At the end of C4 campaign at JET, a 1% SiH4/99% D2 mixture and pure 13CH4 were injected into the torus from the outer divertor wall and from the top of the vessel, respectively, in order to study material transport and scrape-off layer (SOL) flows. A set of MkIIGB tiles was removed during the 2001 shutdown for surface analysis. The tiles were analysed with secondary ion mass spectrometry (SIMS) and time-of-flight elastic recoil detection analysis (TOF-ERDA). 13C was detected in the inner divertor wall tiles implying material transport from the top of the vessel. Silicon was detected mainly at the outer divertor wall tiles and very small amounts were found in the inner divertor wall tiles. Si amounts in the inner divertor wall tiles were so low that rigorous conclusions about material transport from divertor outboard to inboard cannot be made.
    Original languageEnglish
    Pages (from-to)219-224
    Number of pages6
    JournalFusion Engineering and Design
    Volume66-68
    DOIs
    Publication statusPublished - 2003
    MoE publication typeA1 Journal article-refereed
    Event22nd Symposium on Fusion Technology - Helsinki, Finland
    Duration: 9 Sep 200213 Sep 2002
    Conference number: 22

    Fingerprint

    Tile
    Secondary ion mass spectrometry
    Ion beams
    Impurities
    Surface analysis
    Silicon

    Keywords

    • deposition
    • fusion material
    • transport
    • JET
    • divertor
    • plasma
    • fusion energy
    • fusion reactors

    Cite this

    Likonen, J., Lehto, S., Coad, J. P., Renvall, T., Sajavaara, T., Ahlgren, T., ... work-programme, EFDA-JET. (2003). Studies of impurity deposition/implantation in JET divertor tiles using SIMS and ion beam techniques. Fusion Engineering and Design, 66-68, 219-224. https://doi.org/10.1016/S0920-3796(03)00216-3
    Likonen, Jari ; Lehto, Sari ; Coad, J.P. ; Renvall, T. ; Sajavaara, T. ; Ahlgren, T. ; Hole, D.E. ; Matthews, G.F. ; Keinonen, J. ; work-programme, EFDA-JET. / Studies of impurity deposition/implantation in JET divertor tiles using SIMS and ion beam techniques. In: Fusion Engineering and Design. 2003 ; Vol. 66-68. pp. 219-224.
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    title = "Studies of impurity deposition/implantation in JET divertor tiles using SIMS and ion beam techniques",
    abstract = "At the end of C4 campaign at JET, a 1{\%} SiH4/99{\%} D2 mixture and pure 13CH4 were injected into the torus from the outer divertor wall and from the top of the vessel, respectively, in order to study material transport and scrape-off layer (SOL) flows. A set of MkIIGB tiles was removed during the 2001 shutdown for surface analysis. The tiles were analysed with secondary ion mass spectrometry (SIMS) and time-of-flight elastic recoil detection analysis (TOF-ERDA). 13C was detected in the inner divertor wall tiles implying material transport from the top of the vessel. Silicon was detected mainly at the outer divertor wall tiles and very small amounts were found in the inner divertor wall tiles. Si amounts in the inner divertor wall tiles were so low that rigorous conclusions about material transport from divertor outboard to inboard cannot be made.",
    keywords = "deposition, fusion material, transport, JET, divertor, plasma, fusion energy, fusion reactors",
    author = "Jari Likonen and Sari Lehto and J.P. Coad and T. Renvall and T. Sajavaara and T. Ahlgren and D.E. Hole and G.F. Matthews and J. Keinonen and EFDA-JET work-programme",
    year = "2003",
    doi = "10.1016/S0920-3796(03)00216-3",
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    Likonen, J, Lehto, S, Coad, JP, Renvall, T, Sajavaara, T, Ahlgren, T, Hole, DE, Matthews, GF, Keinonen, J & work-programme, EFDA-JET 2003, 'Studies of impurity deposition/implantation in JET divertor tiles using SIMS and ion beam techniques', Fusion Engineering and Design, vol. 66-68, pp. 219-224. https://doi.org/10.1016/S0920-3796(03)00216-3

    Studies of impurity deposition/implantation in JET divertor tiles using SIMS and ion beam techniques. / Likonen, Jari (Corresponding Author); Lehto, Sari; Coad, J.P.; Renvall, T.; Sajavaara, T.; Ahlgren, T.; Hole, D.E.; Matthews, G.F.; Keinonen, J.; work-programme, EFDA-JET.

    In: Fusion Engineering and Design, Vol. 66-68, 2003, p. 219-224.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Studies of impurity deposition/implantation in JET divertor tiles using SIMS and ion beam techniques

    AU - Likonen, Jari

    AU - Lehto, Sari

    AU - Coad, J.P.

    AU - Renvall, T.

    AU - Sajavaara, T.

    AU - Ahlgren, T.

    AU - Hole, D.E.

    AU - Matthews, G.F.

    AU - Keinonen, J.

    AU - work-programme, EFDA-JET

    PY - 2003

    Y1 - 2003

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    AB - At the end of C4 campaign at JET, a 1% SiH4/99% D2 mixture and pure 13CH4 were injected into the torus from the outer divertor wall and from the top of the vessel, respectively, in order to study material transport and scrape-off layer (SOL) flows. A set of MkIIGB tiles was removed during the 2001 shutdown for surface analysis. The tiles were analysed with secondary ion mass spectrometry (SIMS) and time-of-flight elastic recoil detection analysis (TOF-ERDA). 13C was detected in the inner divertor wall tiles implying material transport from the top of the vessel. Silicon was detected mainly at the outer divertor wall tiles and very small amounts were found in the inner divertor wall tiles. Si amounts in the inner divertor wall tiles were so low that rigorous conclusions about material transport from divertor outboard to inboard cannot be made.

    KW - deposition

    KW - fusion material

    KW - transport

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    KW - divertor

    KW - plasma

    KW - fusion energy

    KW - fusion reactors

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    DO - 10.1016/S0920-3796(03)00216-3

    M3 - Article

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    JO - Fusion Engineering and Design

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