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Title: Visible imaging of edge turbulence in NSTX

Abstract

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.

Authors:
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Publication Date:
Research Org.:
Princeton Plasma Physics Lab., Princeton, NJ (US)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
757605
Report Number(s):
PPPL-3464
TRN: US0003463
DOE Contract Number:  
AC02-76CH03073
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 21 Jun 2000
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; EDGE LOCALIZED MODES; TURBULENCE; PLASMA DIAGNOSTICS; NSTX DEVICE; VISIBLE RADIATION; IMAGES; PLASMA DENSITY

Citation Formats

S. Zweben, R. Maqueda, K. Hill, D. Johnson, S. Kaye, H. Kugel, F. Levinton, R. Maingi, L. Roquemore, S. Sabbagh, and G. Wurden. Visible imaging of edge turbulence in NSTX. United States: N. p., 2000. Web. doi:10.2172/757605.
S. Zweben, R. Maqueda, K. Hill, D. Johnson, S. Kaye, H. Kugel, F. Levinton, R. Maingi, L. Roquemore, S. Sabbagh, & G. Wurden. Visible imaging of edge turbulence in NSTX. United States. doi:10.2172/757605.
S. Zweben, R. Maqueda, K. Hill, D. Johnson, S. Kaye, H. Kugel, F. Levinton, R. Maingi, L. Roquemore, S. Sabbagh, and G. Wurden. Wed . "Visible imaging of edge turbulence in NSTX". United States. doi:10.2172/757605. https://www.osti.gov/servlets/purl/757605.
@article{osti_757605,
title = {Visible imaging of edge turbulence in NSTX},
author = {S. Zweben and R. Maqueda and K. Hill and D. Johnson and S. Kaye and H. Kugel and F. Levinton and R. Maingi and L. Roquemore and S. Sabbagh and G. Wurden},
abstractNote = {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.},
doi = {10.2172/757605},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jun 21 00:00:00 EDT 2000},
month = {Wed Jun 21 00:00:00 EDT 2000}
}

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