Skip navigation
Skip navigation

Two-dimensional wave-number spectral analysis techniques for phase contrast imaging turbulence imaging data on large helical device

Michael, Clive; Tanaka, K; VYACHESLAVOV, Leonid; SANIN, Andrei; KAWAHATA, Kazuo


An analysis method for unfolding the spatially resolved wave-number spectrum and phase velocity from the 2D CO2 laser phase contrast imaging system on the large helical device is described. This is based on the magnetic shear technique which identifies propagation direction from 2D spatial Fourier analysis of images detected by a 6 × 8 detector array. Because the strongest modes have wave-number at the lower end of the instrumental k range, high resolution spectral techniques are necessary to...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
Source: Review of Scientific Instruments
DOI: 10.1063/1.4928668
Access Rights: Open Access


File Description SizeFormat Image
01_Michael_Two-dimensional_wave-number_2015.pdf2.46 MBAdobe PDF

Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  19 May 2020/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator