Blob sizes and velocities in the Alcator C-Mod scrape-off layer

Publication: Research - peer-reviewPoster – Annual report year: 2012

Documents

  • Author: Kube, R., Norway

    Department of Physics and Technology, University of Tromsø, Norway

  • Author: Garcia, O.E., United States

    MIT Plasma Science and Fusion Center, United States

  • Author: LaBombard, B., United States

    MIT Plasma Science and Fusion Center, United States

  • Author: Madsen, Jens

    Plasma physics and fusion energy, Department of Physics, Technical University of Denmark, Fysikvej, 2800, Kgs. Lyngby, Denmark

  • Author: Terry, J.L., United States

    MIT Plasma Science and Fusion Center, United States

  • Author: Zweben, S.J., United States

    Princeton Plasma Physics Laboratory, United States

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A new blob-tracking algorithm for the GPI diagnostic installed in the outboard-midplane of Alcator C-Mod is developed. I t tracks large-amplitude fluctuations propagating through the scrape-off layer and calculates blob sizes and velocities. We compare the results of this method to a blob velocity scaling from a simple blob-model for sheath-connected blobs. We further present initial results from a fully three-dimensional blob model that features plasma resistivity as a free parameter.
Original languageEnglish
Publication date2012
Number of pages1
StatePublished

Conference

Conference20th International Conference on Plasma Surface Interactions
CountryGermany
CityAachen
Period21/05/1225/05/12
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