Simultaneous Identification of Thermophysical Properties and Surface Heat Flux on Plasma Facing Components Inside the Jet Fusion Reactor

We present here two thermal diagnostics (IR surface and embedded thermocouple temperature measurements) that outfit the same carbon tile inside the JET Fusion reactor and whose combination enables to identify, on one hand, a surface heat flux history and, on the other hand, one thermophysical parameter of an unknown deposited surface carbon layer (SCL). A sensitivity study of the thermal model of the SCL enables to show that only one parameter can be identified here : the thermal contact resistance between the SCL and the bulk substrate.