Visible imaging of edge turbulence in NSTX | Zendy

S. J. Zweben | Zendy; R. Maqueda | Zendy; K.W. Hill | Zendy; D. Johnson | Zendy; S. Kaye | Zendy; H. Kugel | Zendy; F. Levinton | Zendy; R. Maingi | Zendy; L. Roquemore | Zendy; S.A. Sabbagh | Zendy; G. A. Wurden | Zendy

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Visible imaging of edge turbulence in NSTX

Author(s) -

S. J. Zweben,

R. Maqueda,

K.W. Hill,

D. Johnson,

S. Kaye,

H. Kugel,

F. Levinton,

R. Maingi,

L. Roquemore,

S.A. Sabbagh,

G. A. Wurden

Publication year - 2000

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/757605

Subject(s) - turbulence , tokamak , enhanced data rates for gsm evolution , torus , physics , plasma , flux (metallurgy) , plasma diagnostics , computational physics , optics , mechanics , materials science , nuclear physics , computer science , geometry , mathematics , telecommunications , metallurgy

Edge plasma turbulence in tokamaks and stellarators is believed to cause the radial heat and particle flux across the separatrix and into the scrape-off-layers of these devices. This paper describes initial measurements of 2-D space-time structure of the edge density turbulence made using a visible imaging diagnostic in the National Spherical Torus Experiment (NSTX). The structure of the edge turbulence is most clearly visible using a method of ''gas puff imaging'' to locally illuminate the edge density turbulence

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