Schematic of I-coil and C-coil magnet locations for DIII-D RMP shot 147170. 17 Reprinted with permission from R. A. Moyer et al., Phys. Plasmas 12, 056119 (2005). Copyright 2005 American Institute of Physics.
Toroidal dependence of 0° and 60° radial magnetic fields produced by n = 3 I-coils superimposed with the “background” field. “Background” error field is produced by intrinsic field-errors and the n = 1 C-coil. 20
Change in density associated with toroidal phase reversal in the I-coils and D-alpha signal showing ELM suppression during representative time slices.
Hyperbolic tangent fit for electron density [1020/m3] for 0° and 60° I-coil phases with measured densities represented by the symbol +. Representative error from the fit statistics from time averaging for this measurement is about 1 × 1018 m−3 in the edge pedestal region.
Measured ion and electron temperature profiles as a function of normalized radius.
Measured radial electric field [kv/m] as a function of normalized radius.
Toroidal rotation velocities [km/s] for both measured carbon and calculated deuterium ions in the 0° and 60° phases.
Poloidal rotation velocities for measured carbon and calculated deuterium ions for 0° and 60°.
Calculated toroidal angular momentum transfer frequency νdD and interspecies collision frequency, νDC.
Calculated radially outward diffusion coefficients as a function of normalized radius.
Calculated inward pinch velocity for 60° and 0°.
Decomposition of components of calculated Vpinch for 0° with terms depending on NBI and toroidal electric field, radial electric field, poloidal velocity, and toroidal velocity. The ‘Beam and Ephi’ and ‘Vphi’ terms contribute nearly zero, and the ‘Erad’ is the only positive contribution.
Decomposition of components of calculated Vpinch for 60° into terms depending on NBI and toroidal electric field, radial electric field, poloidal velocity, and toroidal velocity. The ‘Beam and Ephi’ and ‘Vphi’ terms contribute nearly zero, and the ‘Erad’ term is the slightly negative contribution around −50 m/s.
(a) Calculated diffusive and non-diffusive pinch particle flux components of total flux with ion orbit loss correction. The 60° phase has a larger magnitude for both diffusive and non-diffusive flux than the 0° phase. (b) Net flux with the ion orbit loss correction.
Comparison of particle fluxes with and without orbit loss calculated via the continuity equation and the pinch diffusion relation for (a) 0° and (b) 60°.
Inferred electron thermal diffusivities for 60° and 0°.
Inferred ion thermal diffusivities for 0° and 60° phases with the inclusion of the ion orbit loss correction.
(a) Calculated change in deuterium toroidal rotation velocity due to ion orbit loss. (b) Measured carbon and calculated deuterium toroidal velocities.
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