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Edge turbulence imaging in the Alcator C-Mod tokamak

التفاصيل البيبلوغرافية
العنوان: Edge turbulence imaging in the Alcator C-Mod tokamak
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
الوصف
تدمد:10897674
1070664X