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

被引：67

作者：

Yun, G. S. ^{[1
]}

Lee, W. ^{[2
]}

Choi, M. J. ^{[1
]}

Lee, J. ^{[1
]}

Kim, M. ^{[1
]}

Leem, J. ^{[1
]}

Nam, Y. ^{[1
]}

Choe, G. H. ^{[1
]}

Park, H. K. ^{[2
]}

Park, H. ^{[3
]}

Woo, D. S. ^{[3
]}

Kim, K. W. ^{[3
]}

Domier, C. W. ^{[4
]}

Luhmann, N. C., Jr. ^{[4
]}

Ito, N. ^{[5
]}

Mase, A. ^{[6
]}

Lee, S. G. ^{[7
]}

机构：

[1] Pohang Univ Sci & Technol, Dept Phys, Pohang 790784, South Korea

[2] Ulsan Natl Inst Sci & Technol, Ulsan 689798, South Korea

[3] Kyungpook Natl Univ, Sch Elect Engn, Taegu 702701, South Korea

[4] Univ Calif Davis, Dept Elect & Comp Engn, Davis, CA 95616 USA

[5] Kyushu Univ, KASTEC, Kasuga, Fukuoka 8128581, Japan

[6] Ube Natl Coll Technol, Ube, Yamaguchi 7558555, Japan

[7] Natl Fus Res Inst, Taejon 305333, South Korea

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2014年 / 85卷 / 11期

基金：

新加坡国家研究基金会;

关键词：

Broad band polarization - Diagnostic capabilities - Dynamical evolution - KSTAR tokamak - Large aperture - MHD instabilities - Quasi-optical - Second electrons;

D O I：

10.1063/1.4890401

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

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 (B-0 = 1.7 similar to 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. (C) 2014 AIP Publishing LLC.

引用

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