Profile consistency coupled with MHD equilibrium extended to non stationary plasma conditions

A profile consistency based on the parallel component of the ohmic law coupled with MHD equilibrium has been used to obtain electronic temperature profiles, both for stationary and non stationary tokamak plasmas. The ohmic law contains a resistive neoclassical term and one term that accounts for the bootstrap current contribution. A numerical code has been developed to solve the problem where the equilibrium is solved using the toroidal multipole method. For stationary plasmas we have obtained temperature profiles close to the experimental data for a lot of machines very different in size, elongation, plasma current, toroidal field and density (JET, TFTR, Asdex, Alcator-A, Alcator-C and FT). Only some examples of the obtained fits are given in this report. The main feature of the model is the capability to provide a parametrization of the ohmic law also in non stationary cases. In agreement with some experimental evidences the model foresees a strong peaking of the temperature profile in non stationary plasmas only when the central value of q is decreasing in time. An upper limit for the duration of the monster-like pulses can be also estimated by the model. (author) 7 refs., 4 figs