The design of two color interferometer system for the 3-dimensional analysis of plasma density evolution on KSTAR

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A 5-channel two color interferometer (TCI) system has been designed on KSTAR. TCI system is designed for tangential beam paths, which will combine with two existing interferometer systems of vertical and radial beam paths, so that it will provide 3-dimensional measurement of electron density evolution. TCI system uses wavelengths of 10.6 mu m by a CO2 laser and 0.633 mu m by a HeNe laser. The system compensates the vibrational noise by using two colors and avoids refraction by short wavelengths. The main purpose of the TCI is to generate routine measurement of the line integrated plasma density for the real time density control on KSTAR. The 5-channels will provide profile data for the density. Time resolution of the system is expected to be 500 kHz or higher in order to measure 3-dimensional density fluctuations for ELMs and other MHD activities including TAE modes. The system is planned to be working on KSTAR 2016 campaign with 1-2 channels. (C) 2016 Elsevier B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE SA
Issue Date
2016-12
Language
English
Article Type
Article
Citation

FUSION ENGINEERING AND DESIGN, v.113, pp.87 - 91

ISSN
0920-3796
DOI
10.1016/j.fusengdes.2016.10.008
URI
http://hdl.handle.net/10203/218303
Appears in Collection
NE-Journal Papers(저널논문)
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