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Interplay between confinement, turbulence and magnetic topology

Interplay between confinement, turbulence and magnetic topology. Nils P. Basse, S. Zoletnik 1 , W. L. Rowan 2 et al. MIT Plasma Science and Fusion Center 1 KFKI-RMKI, Euratom Association, Budapest, Hungary 2 Fusion Research Center, University of Texas at Austin.

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Interplay between confinement, turbulence and magnetic topology

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  1. Interplay between confinement, turbulence and magnetic topology Nils P. Basse, S. Zoletnik1, W. L. Rowan2 et al. MIT Plasma Science and Fusion Center 1KFKI-RMKI, Euratom Association, Budapest, Hungary 2Fusion Research Center, University of Texas at Austin This idea originates from density fluctuation studies of Wendelstein 7-AS plasmas with the LOTUS small-angle scattering diagnostic. C-Mod Monday Meeting, 8th of December 2003

  2. EFIT equilibrium 1000620020

  3. EFIT equilibrium 1031203019

  4. Waveforms shot 103120301917 plasmas To do: Finalise discharge development (current ramp, triangularities, qa 2.6 etc.). Scans of density, flattop current and ICRF power.

  5. Density fluctuations Below: Localised spectrogram of density fluctuations at 15 cm-1 in W7-AS.

  6. Magnetic fluctuations Right: Spectrogram of coil 24 in C-Mod. Left: Spectrogram of Mirnov coil in W7-AS.

  7. Thomson density profile Profile for minimum qa = 2.75.

  8. Reflectometry Spectrogram of the 132 GHz reflectometry channel (2.2  1020 m-3).

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