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

259 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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10.1088/0029-5515/44/1/016

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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",

issn = "0029-5515",

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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.

UR - https://www.scopus.com/pages/publications/0842269134

UR - https://www.scopus.com/pages/publications/0842269134#tab=citedBy

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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