Simultaneous measurements of electron thermal and particle transport in Jet

The description of the measured thermal and particle fluxes, in JET tokamak, is studied. The evaluation of thermal and particle transport coefficients by three different methods is carried out: from the velocity and damping of heat and density pulses propagating outwards following a sawtooth collapse; measurement of inward propagation of electron density and temperature perturbations produced when a small pellet is injected into the plasma; and the method of flux gradient analysis applied to transient conditions. The determinations of χ and D for ohmically heated discharges in deuterium, limited by the outer belt limiters, are given