Possibility of Poloidal Current Drive by Low Energy Axial NBI into Field-Reversed Configuration Plasma
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چکیده
منابع مشابه
Increased Confinement and b by Inductive Poloidal Current Drive in the Reversed Field Pinch
With the addition of inductive poloidal current drive for current profile control in the Madison Symmetric Torus (MST) reversed field pinch, the magnetic fluctuation amplitude halves, leading to reduced energy and particle transport. A fourto five-fold increase in the energy confinement time to tE , 5 ms with both decreased Ohmic input power and increased stored thermal energy coincides with re...
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Reduction of core-resonant magnetic fluctuations and improved confinement in the Madison Symmetric Torus reversed-field pinch (MST RFP) have been routinely achieved by applying the surface poloidal electric field. The created inductive poloidal electric field drives current in plasma which leads to the improved confinement. To study the effect we developed a relatively simple 1-D model in cylin...
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The magnitude of magnetohydrodynamic motion in terms of wobble, internal tilt, external tilt and n=2 mode deformation in a field-reversed configuration plasma is quantitatively measured by optical and magnetic methods. In the optical method, a suitable viewing configuration of optical detectors is contrived for each type of motion. In the magnetic method, recently derived analytic formulas are ...
متن کاملImpurity transport studies in the Madison Symmetric Torus reversed-field pinch during standard and pulsed poloidal current drive regimes
The transport of intrinsic impurities is investigated during standard and improved confinement regimes of the Madison Symmetric Torus (MST) reversed-field pinch. The impurity diffusion coefficient (D) and pinch velocity (v) are obtained through comparing the time evolution of experimental impurity density profiles with the results of a one-dimensional impurity transport code. Experimental hollo...
متن کاملStudies of a reversed field pinch in a poloidal divertor configuration
An attempt has been made to form a reversed field pinch (RFP) in a poloidal divertor configuration which positions the plasma far from a conducting wall. In this configuration, the plasma is localized within a magnetic separatrix formed by a combination of toroidal currents in the plasma and four internal aluminium rings. Plasmas were formed with a plasma current of ~135 kA, toroidal field reve...
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ژورنال
عنوان ژورنال: Plasma and Fusion Research
سال: 2013
ISSN: 1880-6821
DOI: 10.1585/pfr.8.1203015