Laser performance operation model and its application to LIL energy and power balance

LMJ is a 240 high power laser beam facility for achieving laser matter interaction experiments, high energy density science, including the demonstration of fusion ignition through Inertial Confinement. The Laser Integration Line (LIL) facility is currently a 4-beam prototype for LMJ. In order to achieve precisely specified energies over a wide range of energies, power, temporal shapes and pulse lengths, a computational model has been developed and optimised on every LIL shot. This optimisation is based on the best fit possible between the predicted performances and the measured ones. It is therefore possible to predict the characteristics of a given shot in the 4- beam LIL configuration