Bayesian optimisation

In order to optimise the energy coupling from a laser pulse to a finite-size spherical solid target, we have performed a Bayesian optimisation study using a reduced model based on 2D Osiris simulations. The numerical scheme, showed in the figure, optimises the laser duration, wavelength and particle density of the spherical solid target for the maximum K-alpha ionisation yield. In this way we can explore the multidimensional parameter space to optimise the X-rays K-alpha production from the laser-target interaction.