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Plasma rotation can play an important role in fusion plasmas. In particular, strong shear in the rotation, or more precisely in the toroidal velocity component associated with the radial electric field, is widely believed to be an important factor for transport barriers [1, 2].
A method and system for controlling plasma rotation
ActiveCN122069636BEnhanced inhibitory effectImprove the restraint effectPlasma techniquePotential differenceParticle physics
The application relates to the technical field of plasma digital control, and provides a method and system for controlling plasma rotation, which comprises the following steps: moving an electrode head to a preset magnetic surface according to target window positioning data, applying a deflection bias after satisfying a vacuum condition, making two magnetic surfaces form a radial potential difference, inducing a radial electric field and generating a radial current; combining magnetic field data to determine a Lorentz force distribution, generating a moment and constructing a momentum source area to drive plasma rotation; and combining density parameters to generate an adjustment instruction to optimize the rotation state. The method can control plasma rotation and a boundary electric field under the premise of a complex three-dimensional magnetic field configuration without increasing impurity sources, and realizes boundary transport inhibition and constraint performance improvement.
Owner:SOUTHWEST JIAOTONG UNIV