Predictive ASCOT modelling of 10Be transport in JET with the ITER-like wall

JET-EFDA collaborators

    Research output: Contribution to journalArticleScientificpeer-review

    8 Citations (Scopus)

    Abstract

    We model the transport of a beryllium (10Be) marker during a sequence of an inner-wall limited and a diverted Ohmic plasma phase in JET with the objective of identifying principal migration pathways. The 3D orbit-following code ASCOT is used for predictive analysis of an experiment during the 2011–2012 campaign on JET where three central pieces of a wall tile enriched with 10Be were installed to an inner wall guard limiter (IWGL) of the tokamak. Assuming erosion during the inner-wall limited plasma, the simulations indicate that 10Be is deposited along the IWGLs during the limiter phase which, when assuming further erosion, can lead to high deposition on the inner (high-field side) divertor during the diverted phase. In contrast, beryllium confined in the core plasma during the limiter phase is seen to be predominantly uniformly deposited during the diverted phase on the outer (low-field side) wall limiters and divertor tiles.
    Original languageEnglish
    Pages (from-to)S612-S615
    Number of pages4
    JournalJournal of Nuclear Materials
    Volume438
    Issue numberSupplement
    DOIs
    Publication statusPublished - 2013
    MoE publication typeA1 Journal article-refereed
    Event20th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices - Aachen, Aachen, Germany
    Duration: 21 May 201225 May 2012

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    Limiters
    Beryllium
    Tile
    Plasmas
    tiles
    Erosion
    beryllium
    erosion
    Orbits
    markers
    orbits
    Experiments
    simulation

    Cite this

    JET-EFDA collaborators. / Predictive ASCOT modelling of 10Be transport in JET with the ITER-like wall. In: Journal of Nuclear Materials. 2013 ; Vol. 438, No. Supplement. pp. S612-S615.
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    abstract = "We model the transport of a beryllium (10Be) marker during a sequence of an inner-wall limited and a diverted Ohmic plasma phase in JET with the objective of identifying principal migration pathways. The 3D orbit-following code ASCOT is used for predictive analysis of an experiment during the 2011–2012 campaign on JET where three central pieces of a wall tile enriched with 10Be were installed to an inner wall guard limiter (IWGL) of the tokamak. Assuming erosion during the inner-wall limited plasma, the simulations indicate that 10Be is deposited along the IWGLs during the limiter phase which, when assuming further erosion, can lead to high deposition on the inner (high-field side) divertor during the diverted phase. In contrast, beryllium confined in the core plasma during the limiter phase is seen to be predominantly uniformly deposited during the diverted phase on the outer (low-field side) wall limiters and divertor tiles.",
    author = "J. Miettunen and M. Groth and T. Kurki-Suonio and H. Bergs{\aa}ker and Jari Likonen and S. Marsen and C. Silva and S. {\"A}k{\"a}slompolo and {JET-EFDA collaborators}",
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    doi = "10.1016/j.jnucmat.2013.01.128",
    language = "English",
    volume = "438",
    pages = "S612--S615",
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    Predictive ASCOT modelling of 10Be transport in JET with the ITER-like wall. / JET-EFDA collaborators.

    In: Journal of Nuclear Materials, Vol. 438, No. Supplement, 2013, p. S612-S615.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Predictive ASCOT modelling of 10Be transport in JET with the ITER-like wall

    AU - Miettunen, J.

    AU - Groth, M.

    AU - Kurki-Suonio, T.

    AU - Bergsåker, H.

    AU - Likonen, Jari

    AU - Marsen, S.

    AU - Silva, C.

    AU - Äkäslompolo, S.

    AU - JET-EFDA collaborators

    PY - 2013

    Y1 - 2013

    N2 - We model the transport of a beryllium (10Be) marker during a sequence of an inner-wall limited and a diverted Ohmic plasma phase in JET with the objective of identifying principal migration pathways. The 3D orbit-following code ASCOT is used for predictive analysis of an experiment during the 2011–2012 campaign on JET where three central pieces of a wall tile enriched with 10Be were installed to an inner wall guard limiter (IWGL) of the tokamak. Assuming erosion during the inner-wall limited plasma, the simulations indicate that 10Be is deposited along the IWGLs during the limiter phase which, when assuming further erosion, can lead to high deposition on the inner (high-field side) divertor during the diverted phase. In contrast, beryllium confined in the core plasma during the limiter phase is seen to be predominantly uniformly deposited during the diverted phase on the outer (low-field side) wall limiters and divertor tiles.

    AB - We model the transport of a beryllium (10Be) marker during a sequence of an inner-wall limited and a diverted Ohmic plasma phase in JET with the objective of identifying principal migration pathways. The 3D orbit-following code ASCOT is used for predictive analysis of an experiment during the 2011–2012 campaign on JET where three central pieces of a wall tile enriched with 10Be were installed to an inner wall guard limiter (IWGL) of the tokamak. Assuming erosion during the inner-wall limited plasma, the simulations indicate that 10Be is deposited along the IWGLs during the limiter phase which, when assuming further erosion, can lead to high deposition on the inner (high-field side) divertor during the diverted phase. In contrast, beryllium confined in the core plasma during the limiter phase is seen to be predominantly uniformly deposited during the diverted phase on the outer (low-field side) wall limiters and divertor tiles.

    U2 - 10.1016/j.jnucmat.2013.01.128

    DO - 10.1016/j.jnucmat.2013.01.128

    M3 - Article

    VL - 438

    SP - S612-S615

    JO - Journal of Nuclear Materials

    JF - Journal of Nuclear Materials

    SN - 0022-3115

    IS - Supplement

    ER -