Title :
Images of edge turbulence in NSTX
Author :
Zweben, S.J. ; Bush, C.E. ; Maqueda, R.J. ; Munsat, T. ; Stotler, D.P. ; Lowrance, J.L. ; Mastrocola, V.J. ; Renda, G.
Author_Institution :
Princeton Plasma Phys. Lab., NJ, USA
fDate :
4/1/2005 12:00:00 AM
Abstract :
The two-dimensional structure of edge plasma turbulence has been measured in the National Spherical Torus Experiment (NSTX) by viewing the emission of the Da spectral line of deuterium. Images have been made at framing rates of up to 250 000 frames/s using an ultra-high speed charged coupled device camera developed by Princeton Scientific Instruments. A sequence of images showing the transition between L-mode and H-mode states is shown.
Keywords :
Tokamak devices; deuterium; high-speed optical techniques; plasma boundary layers; plasma diagnostics; plasma instability; plasma toroidal confinement; plasma turbulence; D; H-mode state; L-H transition; L-mode state; NSTX; National Spherial Torus Experiment; deuterium; edge plasma turbulence; spectral line emission; two-dimensional structure; ultrahigh speed charged coupled device camera; Charge-coupled image sensors; Deuterium; Electrons; Instruments; Plasma confinement; Plasma devices; Plasma measurements; Plasma temperature; Spatial resolution; Toroidal magnetic fields; Edge plasma; National Spherical Torus Experiment (NSTX); imaging; turbulence;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2005.845140
