A method is described for determining current distribution and plasma pressure in a tokamak from external magnetic measurements of poloidal and toroidal magnetic fluxes outside the plasma column and also of the total plasma current and the toroidal field. Apart from the magnetic measurements, also equilibrium conditions are applied, and the range of possible current distributions is restricted. Results of the initial measurements on the Tuman-3 tokamak are presented.
Certain considerations concerning the nature of radial electric field and toroidal rotation velocity profile in tokamak plasma