The main objective of the internship is to expand the existing database by searching for new couples (target, laser pulse) capable of delivering a thermonuclear gain greater than those already obtained. We will start by getting to grips with the 1D radiative hydrodynamics simulation code as well as the associated analysis tools and from the existing operating points, we will search for new gain operating points. We will focus on the fundamental parameters of the FCI which are the in-flight adiabat of the fuel, the implosion speed and the initial aspect ratio A of the target. We will optimize the laser pulse to obtain a high thermonuclear gain for a chosen couple (adiabat, A). We will then construct the homothetic family associated with a given speed of implosion. In accordance with the commitments made by the CEA in favor of the integration of people with disabilities, this job is open to everyone. Participating in national protection, an administrative investigation is carried out for all CEA employees in order to ensure the integrity and security of the nation.