Title :
Visible Imaging of Global MHD on MAST
Author :
Ryan, Deborah A.
Author_Institution :
Dept. of Phys., Univ. of York, York, UK
Abstract :
Eulerian video magnification is a video processing technique for amplifying subtle temporal oscillations in video footage. Applying this technique to footage of an H-mode plasma shot on the mega-ampere spherical tokamak, a global magnetohydrodynamic mode is amplified, and its spatial structure is made readily visible. This technique has broad applicability across plasma physics.
Keywords :
Tokamak devices; image enhancement; plasma diagnostics; plasma magnetohydrodynamics; plasma toroidal confinement; Eulerian video magnification; H-mode plasma shot; MAST; global MHD mode; global magnetohydrodynamic mode; mega-ampere spherical tokamak; plasma physics; spatial structure; subtle temporal oscillations; video processing technique; visible imaging; Cameras; Coils; Image edge detection; Magnetic resonance imaging; Oscillators; Tokamaks; Image enhancement; magnetic confinement; plasma diagnostics; tokamaks; video signal processing;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2014.2349931
