Modelling of 13CH4 Injection and Local Carbon Deposition at the Outer Divertor of ASDEX Upgrade

Leena Aho-Mantila (Corresponding Author), Markus Airila, M. Wischmeier, K. Krieger, R. Pugno, V. Rohde, D.P. Coster, A.V. Chankin, R. Neu, ASDEX Upgrade Team

    Research output: Contribution to journalArticleScientificpeer-review

    7 Citations (Scopus)

    Abstract

    Numerical modelling of 13CH4 injection into the outer divertor plasma of the full tungsten, vertical target of ASDEX Upgrade is presented. The SOLPS5.0 code package is used to calculate a realistic scrape-off layer plasma background corresponding to L-mode discharges in the attached divertor plasma regime. The ERO code is then used for detailed modelling of the hydrocarbon break-up, re-deposition and re-erosion processes. The deposition patterns observed at two different poloidal locations are shown to strongly reflect the cross-field gradients in divertor plasma density and temperature, as well as the local plasma collisionality. Experimental results with forward and reversed BT, accompanied by numerical modelling, also point towards a significant poloidal hydrocarbon E×B drift in the divertor region.
    Original languageEnglish
    Article number014019
    JournalPhysica Scripta
    Issue numberT138
    DOIs
    Publication statusPublished - 2009
    MoE publication typeA1 Journal article-refereed
    Event12th International Workshop on Plasma-Facing Materials and Components for Fusion Applications, PFMC-12 - Jülich, Germany
    Duration: 11 May 200914 May 2009

    Fingerprint

    Injection
    Carbon
    Plasma
    injection
    carbon
    Modeling
    Hydrocarbons
    Numerical Modeling
    hydrocarbons
    plasma layers
    plasma temperature
    plasma density
    erosion
    Breakup
    Erosion
    tungsten
    gradients
    Vertical
    Gradient
    Calculate

    Keywords

    • plasma physics
    • tokamaks
    • plasma-material interactions

    Cite this

    Aho-Mantila, Leena ; Airila, Markus ; Wischmeier, M. ; Krieger, K. ; Pugno, R. ; Rohde, V. ; Coster, D.P. ; Chankin, A.V. ; Neu, R. ; Team, ASDEX Upgrade. / Modelling of 13CH4 Injection and Local Carbon Deposition at the Outer Divertor of ASDEX Upgrade. In: Physica Scripta. 2009 ; No. T138.
    @article{7d7f2b92a0d942fe8a7f3e142d998927,
    title = "Modelling of 13CH4 Injection and Local Carbon Deposition at the Outer Divertor of ASDEX Upgrade",
    abstract = "Numerical modelling of 13CH4 injection into the outer divertor plasma of the full tungsten, vertical target of ASDEX Upgrade is presented. The SOLPS5.0 code package is used to calculate a realistic scrape-off layer plasma background corresponding to L-mode discharges in the attached divertor plasma regime. The ERO code is then used for detailed modelling of the hydrocarbon break-up, re-deposition and re-erosion processes. The deposition patterns observed at two different poloidal locations are shown to strongly reflect the cross-field gradients in divertor plasma density and temperature, as well as the local plasma collisionality. Experimental results with forward and reversed BT, accompanied by numerical modelling, also point towards a significant poloidal hydrocarbon E×B drift in the divertor region.",
    keywords = "plasma physics, tokamaks, plasma-material interactions",
    author = "Leena Aho-Mantila and Markus Airila and M. Wischmeier and K. Krieger and R. Pugno and V. Rohde and D.P. Coster and A.V. Chankin and R. Neu and Team, {ASDEX Upgrade}",
    year = "2009",
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    language = "English",
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    Aho-Mantila, L, Airila, M, Wischmeier, M, Krieger, K, Pugno, R, Rohde, V, Coster, DP, Chankin, AV, Neu, R & Team, ASDEXU 2009, 'Modelling of 13CH4 Injection and Local Carbon Deposition at the Outer Divertor of ASDEX Upgrade', Physica Scripta, no. T138, 014019. https://doi.org/10.1088/0031-8949/2009/T138/014019

    Modelling of 13CH4 Injection and Local Carbon Deposition at the Outer Divertor of ASDEX Upgrade. / Aho-Mantila, Leena (Corresponding Author); Airila, Markus; Wischmeier, M.; Krieger, K.; Pugno, R.; Rohde, V.; Coster, D.P.; Chankin, A.V.; Neu, R.; Team, ASDEX Upgrade.

    In: Physica Scripta, No. T138, 014019, 2009.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Modelling of 13CH4 Injection and Local Carbon Deposition at the Outer Divertor of ASDEX Upgrade

    AU - Aho-Mantila, Leena

    AU - Airila, Markus

    AU - Wischmeier, M.

    AU - Krieger, K.

    AU - Pugno, R.

    AU - Rohde, V.

    AU - Coster, D.P.

    AU - Chankin, A.V.

    AU - Neu, R.

    AU - Team, ASDEX Upgrade

    PY - 2009

    Y1 - 2009

    N2 - Numerical modelling of 13CH4 injection into the outer divertor plasma of the full tungsten, vertical target of ASDEX Upgrade is presented. The SOLPS5.0 code package is used to calculate a realistic scrape-off layer plasma background corresponding to L-mode discharges in the attached divertor plasma regime. The ERO code is then used for detailed modelling of the hydrocarbon break-up, re-deposition and re-erosion processes. The deposition patterns observed at two different poloidal locations are shown to strongly reflect the cross-field gradients in divertor plasma density and temperature, as well as the local plasma collisionality. Experimental results with forward and reversed BT, accompanied by numerical modelling, also point towards a significant poloidal hydrocarbon E×B drift in the divertor region.

    AB - Numerical modelling of 13CH4 injection into the outer divertor plasma of the full tungsten, vertical target of ASDEX Upgrade is presented. The SOLPS5.0 code package is used to calculate a realistic scrape-off layer plasma background corresponding to L-mode discharges in the attached divertor plasma regime. The ERO code is then used for detailed modelling of the hydrocarbon break-up, re-deposition and re-erosion processes. The deposition patterns observed at two different poloidal locations are shown to strongly reflect the cross-field gradients in divertor plasma density and temperature, as well as the local plasma collisionality. Experimental results with forward and reversed BT, accompanied by numerical modelling, also point towards a significant poloidal hydrocarbon E×B drift in the divertor region.

    KW - plasma physics

    KW - tokamaks

    KW - plasma-material interactions

    U2 - 10.1088/0031-8949/2009/T138/014019

    DO - 10.1088/0031-8949/2009/T138/014019

    M3 - Article

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    JF - Physica Scripta

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