Synergy between fast-ion transport by core MHD and test blanket module fields in DIII-D experiments

Fast-ion transport caused by the combination of MHD and a mock-up test-blanket module (TBM) coil is measured in the DIII-D tokamak. The primary diagnostic is an infrared camera that measures the heat flux on the tiles surrounding the coil. The combined effects of the TBM and four other potential sou...

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Bibliographic Details
Published in:Nuclear fusion 2015-08, Vol.55 (8), p.83023-12
Main Authors: Heidbrink, W.W., Austin, M.E., Collins, C.S., Gray, T., Grierson, B.A., Kramer, G.J., Lanctot, M., Pace, D.C., Van Zeeland, M.A., Mclean, A.G.
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Alfven eigenmodes
Coiling
fast ions
Heat flux
Heat transfer
Magnetohydrodynamics
MHD
Modules
neoclassical tearing modes
sawtooth
Tearing
Transport
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Summary:Fast-ion transport caused by the combination of MHD and a mock-up test-blanket module (TBM) coil is measured in the DIII-D tokamak. The primary diagnostic is an infrared camera that measures the heat flux on the tiles surrounding the coil. The combined effects of the TBM and four other potential sources of transport are studied: neoclassical tearing modes, Alfén eigenmodes, sawteeth, and applied resonant magnetic perturbation fields for the control of edge localized modes. A definitive synergistic effect is observed at sawtooth crashes where, in the presence of the TBM, the localized heat flux at a burst increases from to MW m−2.
ISSN:0029-5515
1741-4326
DOI:10.1088/0029-5515/55/8/083023