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

G. S. Yun; W. Lee; M. J. Choi; J. Lee; M. Kim; J. Leem; Y. Nam; G. H. Choe; H. K. Park; H. Park; D. S. Woo; K. W. Kim; C. W. Domier; N. C. Luhmann; N. Ito; A. Mase; S. G. Lee

doi:10.1063/1.4890401

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

G. S. Yun, W. Lee, M. J. Choi, J. Lee, M. Kim, J. Leem, Y. Nam, G. H. Choe, H. K. Park, H. Park, D. S. Woo, K. W. Kim, C. W. Domier, N. C. Luhmann, N. Ito, A. Mase, S. G. Lee

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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.

Original language	English
Article number	11D820
Journal	Review of Scientific Instruments
Volume	85
Issue number	11
DOIs	https://doi.org/10.1063/1.4890401
State	Published - Nov 2014

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title = "Quasi 3D ECE imaging system for study of MHD instabilities in KSTAR",

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.",

author = "Yun, {G. S.} and W. Lee and Choi, {M. J.} and J. Lee and M. Kim and J. Leem and Y. Nam and Choe, {G. H.} and Park, {H. K.} and H. Park and Woo, {D. S.} and Kim, {K. W.} and Domier, {C. W.} and Luhmann, {N. C.} and N. Ito and A. Mase and Lee, {S. G.}",

year = "2014",

month = nov,

doi = "10.1063/1.4890401",

language = "English",

volume = "85",

journal = "Review of Scientific Instruments",

issn = "0034-6748",

publisher = "American Institute of Physics",

number = "11",

}

TY - JOUR

T1 - Quasi 3D ECE imaging system for study of MHD instabilities in KSTAR

AU - Yun, G. S.

AU - Lee, W.

AU - Choi, M. J.

AU - Lee, J.

AU - Kim, M.

AU - Leem, J.

AU - Nam, Y.

AU - Choe, G. H.

AU - Park, H. K.

AU - Park, H.

AU - Woo, D. S.

AU - Kim, K. W.

AU - Domier, C. W.

AU - Luhmann, N. C.

AU - Ito, N.

AU - Mase, A.

AU - Lee, S. G.

PY - 2014/11

Y1 - 2014/11

N2 - 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.

AB - 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.

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U2 - 10.1063/1.4890401

DO - 10.1063/1.4890401

M3 - Article

AN - SCOPUS:84904719926

SN - 0034-6748

VL - 85

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 11

M1 - 11D820

ER -

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

Abstract

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