Toroidal Phasing of Resonant Magnetic Perturbation Effect on Edge Pedestal Transport in the DIII-D Tokamak PDF Download

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Toroidal Phasing of Resonant Magnetic Perturbation Effect on Edge Pedestal Transport in the DIII-D Tokamak

Toroidal Phasing of Resonant Magnetic Perturbation Effect on Edge Pedestal Transport in the DIII-D Tokamak PDF Author: Theresa M. Wilks
Publisher:
ISBN:
Category : Perturbation (Mathematics)
Languages : en
Pages :

Book Description
Resonant Magnetic Perturbation (RMP) fields produced by external control coils are considered a viable option for the suppression of Edge Localized Modes (ELMs) in present and future tokamaks. Repeated reversals of the toroidal phase of the I-coil magnetic field in RMP shot 147170 on DIII-D has generated uniquely different edge pedestal profiles, implying different edge transport phenomena. The causes, trends, and implications of RMP toroidal phase reversal on edge transport is analyzed by comparing various parameters at 0 and 60 degree toroidal phases, with an I-coil mode number of n=3. An analysis of diffusive and non-diffusive transport effects of these magnetic perturbations it the plasma edge pedestal for this RMP shot is characterized by interpreting the ion and electron heat diffusivities, angular momentum transport frequencies, ion diffusion coefficients, and pinch velocities for both phases.
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