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Lee, Woochang
UNIST Fusion Plasma Laboratory
Research Interests
  • Development of advanced microwave imaging diagnostics for fusion plasma
  • Turbulence and transport in fusion plasma
  • MHD instabilities in fusion plasma

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Quasi 3D ECE imaging system for study of MHD instabilities in KSTAR

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Title
Quasi 3D ECE imaging system for study of MHD instabilities in KSTAR
Author
Yun, GunsuLee, WoochangChoi, Minjun J.Lee, JisanKim, MoohwanLeem, J.Nam, YoonbumChoe, G. H.Park, Hyeon KeoPark, HyeokWoo, D. S.Kim, K. W.Domier, Calvin W.Luhmann, Neville C.Ito, N.Mase, AtsushiLee, Sang G.
Issue Date
2014-11
Publisher
AMER INST PHYSICS
Citation
REVIEW OF SCIENTIFIC INSTRUMENTS, v.85, no.11, pp.11D820
Abstract
A second electron cyclotron emission imaging (ECEI) system has been installed on the KSTAR tokamak, toroidally separated by 1/16th of the torus from the first ECEI system. For the first time, the dynamical evolutions of MHD instabilities from the plasma core to the edge have been visualized in quasi-3D for a wide range of the KSTAR operation (B0 = 1.7∼3.5 T). This flexible diagnostic capability has been realized by substantial improvements in large-aperture quasi-optical microwave components including the development of broad-band polarization rotators for imaging of the fundamental ordinary ECE as well as the usual 2nd harmonic extraordinary ECE.
URI
https://scholarworks.unist.ac.kr/handle/201301/6403
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84904719926
DOI
10.1063/1.4890401
ISSN
0034-6748
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PHY_Journal Papers
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