Impurity flow measurements at DIII-D using a coherence imaging spectrometer

Tobin R. Weber*, Gary D. Porter, Eric T. Meier, Steven L. Allen, John Howard

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)

    Abstract

    This work describes C2+ emission (CIII 465 nm) and flow measurements from the divertor region of a L-mode, lower-single-null plasma in DIII-D. The measurements use a coherence imaging spectrometer capable of making snapshot 2D C2+ flow measurements in the DIII-D lower divertor that are finely resolved in both space and time. Results show strong C2+ flows in the scrape-off layer towards the divertor plates. Predictions from the fluid-plasma code, UEDGE, are presented and are shown to be in good agreement with data.

    Original languageEnglish
    Pages (from-to)S1257-S1260
    JournalJournal of Nuclear Materials
    Volume438
    Issue numberSUPPL
    DOIs
    Publication statusPublished - 2013

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