Effect of heat flux and density variation on electron temperature profiles in JET ELMy H-modes

Forschungszentrum J¨ulich, EURATOM Association, J¨ulich, GermanyIntroductionA class of transport-relevant instabilities, including Ion Temperature Gradient (ITG), TrappedElectron (TEM) and Electron Temperature Gradient (ETG) driven modes induce a heat fluxwhich increases strongly with temperature gradient above a certain threshold of the inversetemperature gradient length 1 L