J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 361-365
Resistive filamentation of laser-driven fast electron beamsJ. Honrubia1, 0 and J. Meyer-ter-Vehn2
1 ETSII, Universidad Politécnica de Madrid, Spain
2 Max-Planck-Institut für Quantenoptik, Garching, Germany
Simulations of fast electron transport in imploded targets are presented. We found that beam filamentation in low density zones can prevent 1-2 MeV electron propagation towards the high density core. To mitigate this effect, we have considered electrons with mean kinetic energies of 4-5 MeV. The large stopping length of these electrons is partially balanced by collective stopping, resulting in a good coupling of the beam with the imploded target.
© EDP Sciences 2006