Divertor & SOL Characterisation with Visible Imaging

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Presentation transcript:

Divertor & SOL Characterisation with Visible Imaging Filamentary transport imaged in the MAST divertor using a fast framing camera Filaments observed in the SOL and private flux region Extent of fluctuating regions different in L-mode and H-mode Flow of C2+ ions measured using Doppler coherence imaging Spatial resolution <1cm, flow resolution ~1km/s C2+ ions ~2x faster in outer divertor leg after L-H transition Carbon ions accelerate to deuterium sound speed near target High-speed imaging Coherence imaging of C2+ flows CIII Line Intensity CIII Parallel Flow EX/P4-37