Direct observation of current in type-I edge-localized-mode filaments on the ASDEX upgrade tokamak

N. Vianello, M. Zuin, R. Cavazzana, Volker Naulin, Jens Juul Rasmussen, R. Schrittwieser, C. Ionita, F. Mehlmann, H.W. Müller, V. Rohde, M. Maraschek

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    Magnetically confined plasmas in the high confinement regime are regularly subjected to relaxation oscillations, termed edge localized modes (ELMs), leading to large transport events. Present ELM theories rely on a combined effect of edge current and the edge pressure gradients which result in intermediate mode number (n≅10-15) structures (filaments) localized in the perpendicular plane and extended along the field lines. By detailed localized measurements of the magnetic field perturbation associated to type-I ELM filaments, it is shown that these filaments carry a substantial current. © 2011 American Physical Society.
    Original languageEnglish
    JournalPhysical Review Letters
    Volume106
    Issue number12
    Pages (from-to)125002
    ISSN0031-9007
    DOIs
    Publication statusPublished - 2011

    Keywords

    • Fusion energy

    Cite this

    Vianello, N. ; Zuin, M. ; Cavazzana, R. ; Naulin, Volker ; Juul Rasmussen, Jens ; Schrittwieser, R. ; Ionita, C. ; Mehlmann, F. ; Müller, H.W. ; Rohde, V. ; Maraschek, M. / Direct observation of current in type-I edge-localized-mode filaments on the ASDEX upgrade tokamak. In: Physical Review Letters. 2011 ; Vol. 106, No. 12. pp. 125002.
    @article{9922081833ad4d6ab15ede62b8993fcb,
    title = "Direct observation of current in type-I edge-localized-mode filaments on the ASDEX upgrade tokamak",
    abstract = "Magnetically confined plasmas in the high confinement regime are regularly subjected to relaxation oscillations, termed edge localized modes (ELMs), leading to large transport events. Present ELM theories rely on a combined effect of edge current and the edge pressure gradients which result in intermediate mode number (n≅10-15) structures (filaments) localized in the perpendicular plane and extended along the field lines. By detailed localized measurements of the magnetic field perturbation associated to type-I ELM filaments, it is shown that these filaments carry a substantial current. {\circledC} 2011 American Physical Society.",
    keywords = "Fusion energy, Fusionsenergiforskning",
    author = "N. Vianello and M. Zuin and R. Cavazzana and Volker Naulin and {Juul Rasmussen}, Jens and R. Schrittwieser and C. Ionita and F. Mehlmann and H.W. Müller and V. Rohde and M. Maraschek",
    year = "2011",
    doi = "10.1103/PhysRevLett.106.125002",
    language = "English",
    volume = "106",
    pages = "125002",
    journal = "Physical Review Letters",
    issn = "0031-9007",
    publisher = "American Physical Society",
    number = "12",

    }

    Vianello, N, Zuin, M, Cavazzana, R, Naulin, V, Juul Rasmussen, J, Schrittwieser, R, Ionita, C, Mehlmann, F, Müller, HW, Rohde, V & Maraschek, M 2011, 'Direct observation of current in type-I edge-localized-mode filaments on the ASDEX upgrade tokamak', Physical Review Letters, vol. 106, no. 12, pp. 125002. https://doi.org/10.1103/PhysRevLett.106.125002

    Direct observation of current in type-I edge-localized-mode filaments on the ASDEX upgrade tokamak. / Vianello, N.; Zuin, M.; Cavazzana, R.; Naulin, Volker; Juul Rasmussen, Jens; Schrittwieser, R.; Ionita, C.; Mehlmann, F.; Müller, H.W.; Rohde, V.; Maraschek, M.

    In: Physical Review Letters, Vol. 106, No. 12, 2011, p. 125002.

    Research output: Contribution to journalJournal articleResearchpeer-review

    TY - JOUR

    T1 - Direct observation of current in type-I edge-localized-mode filaments on the ASDEX upgrade tokamak

    AU - Vianello, N.

    AU - Zuin, M.

    AU - Cavazzana, R.

    AU - Naulin, Volker

    AU - Juul Rasmussen, Jens

    AU - Schrittwieser, R.

    AU - Ionita, C.

    AU - Mehlmann, F.

    AU - Müller, H.W.

    AU - Rohde, V.

    AU - Maraschek, M.

    PY - 2011

    Y1 - 2011

    N2 - Magnetically confined plasmas in the high confinement regime are regularly subjected to relaxation oscillations, termed edge localized modes (ELMs), leading to large transport events. Present ELM theories rely on a combined effect of edge current and the edge pressure gradients which result in intermediate mode number (n≅10-15) structures (filaments) localized in the perpendicular plane and extended along the field lines. By detailed localized measurements of the magnetic field perturbation associated to type-I ELM filaments, it is shown that these filaments carry a substantial current. © 2011 American Physical Society.

    AB - Magnetically confined plasmas in the high confinement regime are regularly subjected to relaxation oscillations, termed edge localized modes (ELMs), leading to large transport events. Present ELM theories rely on a combined effect of edge current and the edge pressure gradients which result in intermediate mode number (n≅10-15) structures (filaments) localized in the perpendicular plane and extended along the field lines. By detailed localized measurements of the magnetic field perturbation associated to type-I ELM filaments, it is shown that these filaments carry a substantial current. © 2011 American Physical Society.

    KW - Fusion energy

    KW - Fusionsenergiforskning

    U2 - 10.1103/PhysRevLett.106.125002

    DO - 10.1103/PhysRevLett.106.125002

    M3 - Journal article

    VL - 106

    SP - 125002

    JO - Physical Review Letters

    JF - Physical Review Letters

    SN - 0031-9007

    IS - 12

    ER -