Identification of Auger electron heating and inverse Auger effect in experiments irradiating solids with XUV Free Electron Laser radiation at intensities larger than 1016 W/cm2

We present simulations that allow studying Auger heating and the subsequent evolution of the radiation emission of near solid density matter. Particular emphasize is paid to the multi-charge state inverse Auger-effect in dense plasmas which is proposed to explain the target emission when the conduction band at solid density becomes more atomic like as energy is transferred from the electrons to the ions. Simulations are discussed along with the first available experimental data.