Estimate of convective radial transport due to SOL turbulence as measured by GPI in Alcator C-Mod (Articolo in rivista)

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  • Estimate of convective radial transport due to SOL turbulence as measured by GPI in Alcator C-Mod (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.jnucmat.2010.08.018 (literal)
Alternative label
  • S.J. Zweben; J.L. Terry; B. LaBombard; M. Agostini; M. Greenwald; O. Grulke; J.W. Hughes; D.A. D'Ippolito; S.I. Krasheninnikov; J.R. Myra; D.A. Russell; D.P. Stotler; M. Umansky (2011)
    Estimate of convective radial transport due to SOL turbulence as measured by GPI in Alcator C-Mod
    in Journal of nuclear materials; ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, AMSTERDAM (Paesi Bassi)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • S.J. Zweben; J.L. Terry; B. LaBombard; M. Agostini; M. Greenwald; O. Grulke; J.W. Hughes; D.A. D'Ippolito; S.I. Krasheninnikov; J.R. Myra; D.A. Russell; D.P. Stotler; M. Umansky (literal)
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  • S463 (literal)
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  • S466 (literal)
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  • Supplement: S; La rivista è pubblicata anche online con ISSN 1873-4820 (Editore: Elsevier Science BV) (literal)
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  • http://www.sciencedirect.com/science/article/pii/S0022311510003958 (literal)
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  • 415 (literal)
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  • 4 (literal)
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  • 1 (literal)
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  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
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  • a PPPL, P.O. Box 451, Princeton, NJ 08540, USA - b PSFC, MIT, Cambridge, MA 02139, USA - c Consorzio RFX, Padova, Italy - d IPP, Garching, Germany - e Lodestar Research, Boulder, CO 80301, USA - f UCSD, San Diego, CA 92093, USA - g LLNL, Livermore, CA 94550, USA - (S.J. Zweben a, J.L. Terry b , B. LaBombard b , M. Agostini c , M. Greenwald b , O. Grulke d , J.W. Hughes b , D.A. D'Ippolito e , S.I. Krasheninnikov f , J.R. Myra e , D.A. Russell e , D.P. Stotler a , M. Umansky g) (literal)
Titolo
  • Estimate of convective radial transport due to SOL turbulence as measured by GPI in Alcator C-Mod (literal)
Abstract
  • The convective radial transport effects of SOL turbulence have been estimated using recent turbulence data from the gas puff imaging (GPI) camera diagnostic on Alcator C-Mod. The average radial turbulence speed within the region 1-2 cm outside the separatrix near the outer was calculated by a 2-0 cross-correlation technique to be V-t similar to 0.2-0.3 km/s. Assuming this to be the local convective plasma velocity, the density SOL width lambda(n) was evaluated using a simple convective model to be lambda(n) similar to 4-7 cm, which is similar to 2-3 times higher than that measured using a Langmuir probe. This convective velocity was also similar to 2-3 times lower than the velocities estimated from analytic blob models, but showed a similar scaling with plasma current at constant q(95). The measured blob speeds were lower than both the convective speeds and the analytic blob model speeds. (literal)
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