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See full abstract here:
http://ocs.ciemat.es/EPS2019ABS/pdf/P5.1005.pdf
In this work, we have constructed an ITER con guration, which is generated by currents owing within the plasma and currents owing in external coils. The plasma current density takes the form j_φ (r; z) = - ar - bR^2/r or other H-mode current pro le inside the plasma, and is zero in the surrounding vacuum. We use Green's function method to compute the plasma current contribution, together with a homogeneous solution to the Grad-Shafranov equation, to construct the full solution. Matching with the constant boundary condition on the last closed flux surface is performed to determine the homogeneous solution. Then the total solution in the full space is obtained. We can also obtain the value of external coils current by the homogeneous solution.