Observation of Blobs and Holes in the Boundary Plasma of EAST Tokamak

Ning Yan, Guosheng Xu, Wei Zhang, Jiafeng Chang, Liang Wang, Shaocheng Liu, Peng Liu, Huiqian Wang, Min Jiang, Hao Xiong, Siye Ding, Baonian Wan, Xiang Gao, Volker Naulin, Anders Henry Nielsen, Jens Juul Rasmussen

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    Intermittent convective transport at the edge and in the scrape-off layer (SOL) of EAST was investigated by using fast reciprocating Langmuir probe. Holes, as part of plasma structures, were detected for the first time inside the shear layer. The amplitude probability distribution function of the turbulence is strongly skewed, with positive skewed events (“blobs") prevailing in the SOL region and negative skewed events (“holes") dominant inside the shear layer. The statistical properties coincide with previous observations from JET. The generation mechanism of blobs and holes is also discussed. In addition burst structure and dynamics character of them are also presented.
    Original languageEnglish
    JournalPlasma Science and Technology
    Volume13
    Issue number4
    Pages (from-to)410-414
    ISSN1009-0630
    DOIs
    Publication statusPublished - 2011

    Keywords

    • Fusion energy

    Cite this

    Yan, Ning ; Xu, Guosheng ; Zhang, Wei ; Chang, Jiafeng ; Wang, Liang ; Liu, Shaocheng ; Liu, Peng ; Wang, Huiqian ; Jiang, Min ; Xiong, Hao ; Ding, Siye ; Wan, Baonian ; Gao, Xiang ; Naulin, Volker ; Nielsen, Anders Henry ; Juul Rasmussen, Jens. / Observation of Blobs and Holes in the Boundary Plasma of EAST Tokamak. In: Plasma Science and Technology. 2011 ; Vol. 13, No. 4. pp. 410-414.
    @article{a890d754a57146a2b74f8be77e670555,
    title = "Observation of Blobs and Holes in the Boundary Plasma of EAST Tokamak",
    abstract = "Intermittent convective transport at the edge and in the scrape-off layer (SOL) of EAST was investigated by using fast reciprocating Langmuir probe. Holes, as part of plasma structures, were detected for the first time inside the shear layer. The amplitude probability distribution function of the turbulence is strongly skewed, with positive skewed events (“blobs{"}) prevailing in the SOL region and negative skewed events (“holes{"}) dominant inside the shear layer. The statistical properties coincide with previous observations from JET. The generation mechanism of blobs and holes is also discussed. In addition burst structure and dynamics character of them are also presented.",
    keywords = "Fusion energy, Fusionsenergiforskning",
    author = "Ning Yan and Guosheng Xu and Wei Zhang and Jiafeng Chang and Liang Wang and Shaocheng Liu and Peng Liu and Huiqian Wang and Min Jiang and Hao Xiong and Siye Ding and Baonian Wan and Xiang Gao and Volker Naulin and Nielsen, {Anders Henry} and {Juul Rasmussen}, Jens",
    year = "2011",
    doi = "10.1088/1009-0630/13/4/05",
    language = "English",
    volume = "13",
    pages = "410--414",
    journal = "Plasma Science and Technology",
    issn = "1009-0630",
    publisher = "IOP Publishing",
    number = "4",

    }

    Yan, N, Xu, G, Zhang, W, Chang, J, Wang, L, Liu, S, Liu, P, Wang, H, Jiang, M, Xiong, H, Ding, S, Wan, B, Gao, X, Naulin, V, Nielsen, AH & Juul Rasmussen, J 2011, 'Observation of Blobs and Holes in the Boundary Plasma of EAST Tokamak', Plasma Science and Technology, vol. 13, no. 4, pp. 410-414. https://doi.org/10.1088/1009-0630/13/4/05

    Observation of Blobs and Holes in the Boundary Plasma of EAST Tokamak. / Yan, Ning; Xu, Guosheng; Zhang, Wei; Chang, Jiafeng; Wang, Liang; Liu, Shaocheng; Liu, Peng; Wang, Huiqian; Jiang, Min; Xiong, Hao; Ding, Siye; Wan, Baonian; Gao, Xiang; Naulin, Volker; Nielsen, Anders Henry; Juul Rasmussen, Jens.

    In: Plasma Science and Technology, Vol. 13, No. 4, 2011, p. 410-414.

    Research output: Contribution to journalJournal articleResearchpeer-review

    TY - JOUR

    T1 - Observation of Blobs and Holes in the Boundary Plasma of EAST Tokamak

    AU - Yan, Ning

    AU - Xu, Guosheng

    AU - Zhang, Wei

    AU - Chang, Jiafeng

    AU - Wang, Liang

    AU - Liu, Shaocheng

    AU - Liu, Peng

    AU - Wang, Huiqian

    AU - Jiang, Min

    AU - Xiong, Hao

    AU - Ding, Siye

    AU - Wan, Baonian

    AU - Gao, Xiang

    AU - Naulin, Volker

    AU - Nielsen, Anders Henry

    AU - Juul Rasmussen, Jens

    PY - 2011

    Y1 - 2011

    N2 - Intermittent convective transport at the edge and in the scrape-off layer (SOL) of EAST was investigated by using fast reciprocating Langmuir probe. Holes, as part of plasma structures, were detected for the first time inside the shear layer. The amplitude probability distribution function of the turbulence is strongly skewed, with positive skewed events (“blobs") prevailing in the SOL region and negative skewed events (“holes") dominant inside the shear layer. The statistical properties coincide with previous observations from JET. The generation mechanism of blobs and holes is also discussed. In addition burst structure and dynamics character of them are also presented.

    AB - Intermittent convective transport at the edge and in the scrape-off layer (SOL) of EAST was investigated by using fast reciprocating Langmuir probe. Holes, as part of plasma structures, were detected for the first time inside the shear layer. The amplitude probability distribution function of the turbulence is strongly skewed, with positive skewed events (“blobs") prevailing in the SOL region and negative skewed events (“holes") dominant inside the shear layer. The statistical properties coincide with previous observations from JET. The generation mechanism of blobs and holes is also discussed. In addition burst structure and dynamics character of them are also presented.

    KW - Fusion energy

    KW - Fusionsenergiforskning

    U2 - 10.1088/1009-0630/13/4/05

    DO - 10.1088/1009-0630/13/4/05

    M3 - Journal article

    VL - 13

    SP - 410

    EP - 414

    JO - Plasma Science and Technology

    JF - Plasma Science and Technology

    SN - 1009-0630

    IS - 4

    ER -