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Measurements of the cross-phase angle between density and electron temperature fluctuations and comparison with gyrokinetic simulations
This paper presents new measurements of the cross-phase angle, αneTe, between long-wavelength (kθρs<0.5) density, ne, and electron temperature, Te, fluctuations in the core of DIII-D [J. L. Luxon,Expand
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2D properties of core turbulence on DIII-D and comparison to gyrokinetic simulations
Quantitative 2D characteristics of localized density fluctuations are presented over the range of 0.3<r/a<0.9 in L-mode plasmas on DIII-D [J. L. Luxon, Nucl. Fusion 42, 614 (2002)]. Broadband densityExpand
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Quantitative comparison of experimental impurity transport with nonlinear gyrokinetic simulation in an Alcator C-Mod L-mode plasma
Nonlinear gyrokinetic simulations of impurity transport are compared to experimental impurity transport for the first time. The GYRO code (Candy and Waltz 2003 J. Comput. Phys. 186 545) was used toExpand
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X-ray imaging crystal spectroscopy for use in plasma transport research.
This research describes advancements in the spectral analysis and error propagation techniques associated with x-ray imaging crystal spectroscopy (XICS) that have enabled this diagnostic to be usedExpand
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The cholesteric defect structure near the smectic A transition
We study in detail the defect structure observed in a cylindrical geometry near the smectic A-cholesteric transition. The orientation of the molecules at the capillary surface is radial. We proposeExpand
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Detection of zonal flow spectra in DIII-D by a dual-channel Doppler backscattering system.
Doppler backscattering (DBS) has been successfully used to measure the E x B flow velocity and local intermediate wavenumber density fluctuation levels in the DIII-D tokamak. Depending on the launchExpand
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New plasma measurements with a multichannel millimeter-wave fluctuation diagnostic system in the DIII-D tokamak (invited).
A novel multichannel, tunable Doppler backscattering (DBS)/reflectometry system has recently been developed and applied to a variety of DIII-D plasmas. Either DBS or reflectometry can be easilyExpand
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L-mode validation studies of gyrokinetic turbulence simulations via multiscale and multifield turbulence measurements on the DIII-D tokamak
A series of carefully designed experiments on DIII-D have taken advantage of a broad set of turbulence and profile diagnostics to rigorously test gyrokinetic turbulence simulations. In this paper theExpand
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Advances in validating gyrokinetic turbulence models against L- and H-mode plasmas a)
Robust validation of predictive turbulent transport models requires quantitative comparisons to experimental measurements at multiple levels, over a range of physically relevant conditions. TowardExpand
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Observation of reduced electron-temperature fluctuations in the core of H-mode plasmas.
Core electron-temperature fluctuations [0.5%< or =T[over ]_(e)/T_(e)< or =2%, k_(theta)rho_(s)< or =0.3 in neutral-beam-heated low confinement-mode (L-mode) plasmas] are observed to decrease by atExpand
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