Edge turbulence imaging in the Alcator C-Mod tokamak
العنوان: | Edge turbulence imaging in the Alcator C-Mod tokamak |
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المؤلفون: | Martin Greenwald, G. F. Renda, V. J. Mastrocola, C. S. Pitcher, Barrett Rogers, S. J. Zweben, Klaus Hallatschek, M. Muterspaugh, D. P. Stotler, J. L. Lowrance, J. L. Terry, R. J. Maqueda, Brian LaBombard |
المصدر: | Physics of Plasmas. 9:1981-1989 |
بيانات النشر: | AIP Publishing, 2002. |
سنة النشر: | 2002 |
مصطلحات موضوعية: | Physics, Fusion, Tokamak, Turbulence, Condensed Matter Physics, law.invention, Magnetic field, Maxima and minima, Alcator C-Mod, Physics::Plasma Physics, law, Plasma diagnostics, Atomic physics, Ultrashort pulse |
الوصف: | The two-dimensional (2D) radial vs poloidal structure of edge turbulence in the Alcator C-Mod tokamak [I. H. Hutchinson, R. Boivin, P. T. Bonoli et al., Nucl. Fusion 41, 1391 (2001)] was measured using fast cameras and compared with three-dimensional numerical simulations of edge plasma turbulence. The main diagnostic is gas puff imaging, in which the visible Dα emission from a localized D2 gas puff is viewed along a local magnetic field line. The observed Dα fluctuations have a typical radial and poloidal scale of ≈1 cm, and often have strong local maxima (“blobs”) in the scrape-off layer. The motion of this 2D structure motion has also been measured using an ultrafast framing camera with 12 frames taken at 250 000 frames/s. Numerical simulations produce turbulent structures with roughly similar spatial and temporal scales and transport levels as that observed in the experiment; however, some differences are also noted, perhaps requiring diagnostic improvement and/or additional physics in the numerical m... |
تدمد: | 1089-7674 1070-664X |
URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::ec964867fd614df55d88d60545927d49 https://doi.org/10.1063/1.1445179 |
رقم الأكسشن: | edsair.doi...........ec964867fd614df55d88d60545927d49 |
قاعدة البيانات: | OpenAIRE |
تدمد: | 10897674 1070664X |
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