High-speed imaging of edge turbulence in NSTX

被引：230

作者：

Zweben, SJ

Maqueda, RJ

Stotler, DP

Keesee, A

Boedo, J

Bush, CE

Kaye, SM

LeBlanc, B

Lowrance, JL

Mastrocola, VJ

Maingi, R

Nishino, N

Renda, G

Swain, DW

Wilgen, JB

机构：

[1] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA

[2] Los Alamos Natl Lab, Los Alamos, NM USA

[3] W Virginia Univ, Morgantown, WV 26506 USA

[4] Univ Calif San Diego, San Diego, CA USA

[5] Oak Ridge Natl Lab, Oak Ridge, TN USA

[6] Princeton Sci Instruments Inc, Monmouth Jct, NJ USA

[7] Hiroshima Univ, Hiroshima, Japan

来源：

NUCLEAR FUSION | 2004年 / 44卷 / 01期

关键词：

D O I：

10.1088/0029-5515/44/1/016

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

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 approximate to10(5) cm s(-1), and sometimes show spatially periodic features.

引用

页码：134 / 153

页数：20

共 63 条

[1] Universality of intermittent convective transport in the scrape-off layer of magnetically confined devices [J].

Antar, GY ;

Counsell, G ;

Yu, Y ;

Labombard, B ;

Devynck, P .

PHYSICS OF PLASMAS, 2003, 10 (02) :419-428

[2] Bursty transport in tokamak turbulence: Role of zonal flows and internal transport barriers [J].

Benkadda, S ;

Beyer, P ;

Bian, N ;

Figarella, C ;

Garcia, O ;

Garbet, X ;

Ghendrih, P ;

Sarazin, Y ;

Diamond, PH .

NUCLEAR FUSION, 2001, 41 (08) :995-1001

[3] Nondiffusive transport in tokamaks: Three-dimensional structure of bursts and the role of zonal flows [J].

Beyer, P ;

Benkadda, S ;

Garbet, X ;

Diamond, PH .

PHYSICAL REVIEW LETTERS, 2000, 85 (23) :4892-4895

[4] The spatial structure of edge fluctuations in the Wendelstein 7-AS stellarator [J].

Bleuel, J ;

Endler, M ;

Niedermeyer, H ;

Schubert, M ;

Thomsen, H .

NEW JOURNAL OF PHYSICS, 2002, 4 :38.1-38.38

[5] Transport by intermittency in the boundary of the DIII-D tokamak [J].

Boedo, JA ;

Rudakov, DL ;

Moyer, RA ;

McKee, GR ;

Colchin, RJ ;

Schaffer, MJ ;

Stangeby, PG ;

West, WP ;

Allen, SL ;

Evans, TE ;

Fonck, RJ ;

Hollmann, EM ;

Krasheninnikov, S ;

Leonard, AW ;

Nevins, W ;

Mahdavi, MA ;

Porter, GD ;

Tynan, GR ;

Whyte, DG ;

Xu, X .

PHYSICS OF PLASMAS, 2003, 10 (05) :1670-1677

[6] Transport by intermittent convection in the boundary of the DIII-D tokamak [J].

Boedo, JA ;

Rudakov, D ;

Moyer, R ;

Krasheninnikov, S ;

Whyte, D ;

McKee, G ;

Tynan, G ;

Schaffer, M ;

Stangeby, P ;

West, P ;

Allen, S ;

Evans, T ;

Fonck, R ;

Hollmann, E ;

Leonard, A ;

Mahdavi, A ;

Porter, G ;

Tillack, M ;

Antar, G .

PHYSICS OF PLASMAS, 2001, 8 (11) :4826-4833

[7] H-mode threshold and dynamics in the National Spherical Torus Experiment [J].

Bush, CE ;

Bell, MG ;

Bell, RE ;

Boedo, J ;

Fredrickson, ED ;

Kaye, SM ;

Kubota, S ;

LeBlanc, BP ;

Maingi, R ;

Maqueda, RJ ;

Sabbagh, SA ;

Soukhanovskii, VA ;

Stutman, D ;

Swain, DW ;

Wilgen, JB ;

Zweben, SJ ;

Davis, WM ;

Gates, DA ;

Johnson, DW ;

Kaita, R ;

Kugel, HW ;

Lee, KC ;

Mastrovito, D ;

Medley, S ;

Menard, JE ;

Mueller, D ;

Ono, M ;

Paoletti, F ;

Park, H ;

Paul, SJ ;

Peng, YKM ;

Raman, R ;

Roney, PG ;

Roquemore, AL ;

Skinner, CH ;

Synakowski, EJ ;

Taylor, G .

PHYSICS OF PLASMAS, 2003, 10 (05) :1755-1764

[8] Progress in anomalous transport research in toroidal magnetic confinement devices [J].

Carreras, BA .

IEEE TRANSACTIONS ON PLASMA SCIENCE, 1997, 25 (06) :1281-1321

[9] SPECTRUM OF LOW-BETA PLASMA TURBULENCE [J].

CHEN, FF .

PHYSICAL REVIEW LETTERS, 1965, 15 (09) :381-&

[10] Blob stability and transport in the scrape-off-layer [J].

D'Ippolito, DA ;

Myra, JR .

PHYSICS OF PLASMAS, 2003, 10 (10) :4029-4039

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