Combined effects of laser and non-thermal electron beams on hydrodynamics and shock formation in the Shock Ignition scheme

An issue to be addressed in Inertial Confinement Fusion (ICF) is the detailed description of the kinetic transport of relativistic or non-thermal electrons generated by laser within the time and space scales of the imploded target hydrodynamics. We have developed at CELIA the model M1 [1], a fast and reduced kinetic model for relativistic electron transport. The latter has been implemented into the 2D radiation hydrodynamic code CHIC [2]. In the framework of the Shock Ignition (SI) scheme, it has been shown in simplified conditions that the energy transferred by the non-thermal electrons from the corona to the compressed shell of an ICF target could be an important mechanism for the creation of ablation pressure [3]. Nevertheless, in realistic configurations, taking the density profile and the electron energy spectrum into account, the target has to be carefully designed to avoid deleterious effects on compression efficiency [4]. In addition, the electron energy deposition may modify the laser-driven shock formation and its propagation through the target. The non-thermal electron effects on the shock propagation will be analyzed in a realistic configuration. \\[4pt] [1] B. Dubroca \textit{et al.}, Eur. Phys. J. D 60, 301 (2010), [2] J. Breil \textit{et al.}, J. Comp. Phys. 224, 785 (2007), [3] S. Gus'kov et al., Phys. Rev. Letters 109, 255004 (2012), [4] Ph. Nicola\"{\i} et al, Phys. Rev. E 89, 033107 (2014).