High-speed imaging of edge turbulence in NSTX

S. J. Zweben; R. J. Maqueda; D. P. Stotler; A. Keesee; J. Boedo; C. E. Bush; S. M. Kaye; B. LeBlanc; J. L. Lowrance; V. J. Mastrocola; R. Maingi; N. Nishino; G. Renda; D. W. Swain; J. B. Wilgen

doi:10.1088/0029-5515/44/1/016

High-speed imaging of edge turbulence in NSTX

S. J. Zweben, R. J. Maqueda, D. P. Stotler, A. Keesee, J. Boedo, C. E. Bush, S. M. Kaye, B. LeBlanc, J. L. Lowrance, V. J. Mastrocola, R. Maingi, N. Nishino, G. Renda, D. W. Swain, J. B. Wilgen

PPPL NSTX

Research output: Contribution to journal › Article › peer-review

258 Scopus citations

Abstract

The two-dimensional radial vs poloidal structure and motion of edge turbulence in the National Spherical Torus Experiment (NSTX) were measured using high-speed imaging of the visible light emission from a localized neutral gas puff. Edge turbulence images are shown and analysed for Ohmic, L- and H-mode plasma conditions. The two-dimensional images often show regions of strong localized light emission known as 'blobs', which move both poloidally and radially at a typical speed of ≈10⁵ cm s^-1, and sometimes show spatially periodic features.

Original language	English (US)
Pages (from-to)	134-153
Number of pages	20
Journal	Nuclear Fusion
Volume	44
Issue number	1
DOIs	https://doi.org/10.1088/0029-5515/44/1/016
State	Published - Jan 2004

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Condensed Matter Physics

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title = "High-speed imaging of edge turbulence in NSTX",

abstract = "The two-dimensional radial vs poloidal structure and motion of edge turbulence in the National Spherical Torus Experiment (NSTX) were measured using high-speed imaging of the visible light emission from a localized neutral gas puff. Edge turbulence images are shown and analysed for Ohmic, L- and H-mode plasma conditions. The two-dimensional images often show regions of strong localized light emission known as 'blobs', which move both poloidally and radially at a typical speed of ≈105 cm s-1, and sometimes show spatially periodic features.",

author = "Zweben, \{S. J.\} and Maqueda, \{R. J.\} and Stotler, \{D. P.\} and A. Keesee and J. Boedo and Bush, \{C. E.\} and Kaye, \{S. M.\} and B. LeBlanc and Lowrance, \{J. L.\} and Mastrocola, \{V. J.\} and R. Maingi and N. Nishino and G. Renda and Swain, \{D. W.\} and Wilgen, \{J. B.\}",

year = "2004",

month = jan,

doi = "10.1088/0029-5515/44/1/016",

language = "English (US)",

volume = "44",

pages = "134--153",

journal = "Nuclear Fusion",

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TY - JOUR

T1 - High-speed imaging of edge turbulence in NSTX

AU - Zweben, S. J.

AU - Maqueda, R. J.

AU - Stotler, D. P.

AU - Keesee, A.

AU - Boedo, J.

AU - Bush, C. E.

AU - Kaye, S. M.

AU - LeBlanc, B.

AU - Lowrance, J. L.

AU - Mastrocola, V. J.

AU - Maingi, R.

AU - Nishino, N.

AU - Renda, G.

AU - Swain, D. W.

AU - Wilgen, J. B.

PY - 2004/1

Y1 - 2004/1

N2 - The two-dimensional radial vs poloidal structure and motion of edge turbulence in the National Spherical Torus Experiment (NSTX) were measured using high-speed imaging of the visible light emission from a localized neutral gas puff. Edge turbulence images are shown and analysed for Ohmic, L- and H-mode plasma conditions. The two-dimensional images often show regions of strong localized light emission known as 'blobs', which move both poloidally and radially at a typical speed of ≈105 cm s-1, and sometimes show spatially periodic features.

AB - The two-dimensional radial vs poloidal structure and motion of edge turbulence in the National Spherical Torus Experiment (NSTX) were measured using high-speed imaging of the visible light emission from a localized neutral gas puff. Edge turbulence images are shown and analysed for Ohmic, L- and H-mode plasma conditions. The two-dimensional images often show regions of strong localized light emission known as 'blobs', which move both poloidally and radially at a typical speed of ≈105 cm s-1, and sometimes show spatially periodic features.

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U2 - 10.1088/0029-5515/44/1/016

DO - 10.1088/0029-5515/44/1/016

M3 - Article

AN - SCOPUS:0842269134

SN - 0029-5515

VL - 44

SP - 134

EP - 153

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 1

ER -

High-speed imaging of edge turbulence in NSTX

Abstract

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