Study of MHD and Turbulence via Advanced 2d/3d Imaging Systems on KSTAR

TitleStudy of MHD and Turbulence via Advanced 2d/3d Imaging Systems on KSTAR
Publication TypeConference Proceedings
Year of Publication2012
AuthorsH.K Park, G.S Yun, W. Lee, M.J Choi, J. Lee, M. Kim, Y. Nam, J.H Lee, Y.M Jeon, C.W. Domier, N.C.Luhmann Jr., A.JH Donne, S. Zoletnik
Conference Name2012 Abstracts IEEE International Conference on Plasma Science (ICOPS)
Conference LocationEdinburgh, UK

Summary form only given. MagnetoHydroDynamic (MHD) instabilities and turbulence phenomena in tokamak plasmas are complex and multi-dimensional. It is imperative to equip 2D/3D diagnostic systems for a full understanding, which is essential to perfect the theoretical models for MHD and turbulence based transport physics. On KSTAR, such a unique opportunity will be established. A 2D Electron Cyclotron Emission Imaging (ECEI) system has been the leading tool for this effort and it will be extended to a 3D measurement with an additional system at a toroidally separated position in 2012. A 2D Microwave Imaging System (MIR) for density turbulence measurements will be combined with this system. Following a successful operation of the prototype Beam Emission Spectroscopy (BES) system on KSTAR, the full 2D system (8×8) is expected to be operational in 2012. These three imaging diagnostic systems on KSTAR will be instrumental in assessing the multi-dimensional turbulent/fluctuation spectra for the density and temperature. In this paper, MHD study results from the KSTAR ECEI system will be presented, along with a correlation study between the density fluctuations from BES and temperature fluctuations from ECEI. The future study plan for multi-dimensional correlation between Te and ne fluctuation from BES, MIR and ECEI systems will be the focus of this paper.








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