5. Conclusions

The merger is currently marked by the construction of unique facilities on national territory costing several gigaeuros. For the FCI, the American NIF is already operational, and the experiments it enabled between 2009 and 2012 have shown the limits and successes of the undertaking. To optimize the gain scenario, we need to review all the physical models underlying the FCI, which are structured into different fields associated with distinct research communities: laser-plasma interaction, radiation and spectroscopy, hydrodynamics and associated implosion instabilities, ignition, plus the physics of alternative schemes: rapid ignition, shock ignition. The complexity and interconnectedness of these processes means that we need to assess the robustness of the ideal ignition scenario in relation to uncertainties in the models used, on the one hand, and to variations in disturbing parameters,...