Visible imaging of edge turbulence in NSTX

Conference · Tue Jun 13 00:00:00 EDT 2000

OSTI ID:756509

Zweben, S ^[1]; Maqueda, R; Hill, K; Johnson, D

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1. Princeton Plasma Physics Laboratory

Edge plasma turbulence in tokamaks and stellarators is believed to cause the radical 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.

• Research Organization: Princeton Plasma Physics Lab., NJ (US)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 756509
• Report Number(s): cfpaper-4197
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
IMAGES
NSTX DEVICE
PLASMA DENSITY
PLASMA DIAGNOSTICS
TURBULENCE
VISIBLE RADIATION