Abstract
One of the analytical solutions to the inhomogeneous Grad–Shafranov equation (GSE) is based on the well-known Solov’ev equilibrium that corresponds to source functions linear in ψ. The GSE has been solved by this method with constraints over plasma current and poloidal beta using rectangular fixed boundary conditions [1]. In this paper a new analytical solution to GSE by imposing constraints on the plasma current and β p + l i /2 is presented. This method is used for plasma position determination in IR-T1 Tokamak by considering linear source functions and circular fixed boundary conditions. Plasma position is also measured by discrete magnetic probes and is compared with the analytical technique. Results comparison shows good agreement for a typical discharge in IR-T1 Tokamak.
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