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Characterization of laser-driven proton beams from near-critical density targets using copper activation
2014
Journal of Plasma Physics
Copper activation was used to characterize high-energy proton beam acceleration from near-critical density plasma targets. An enhancement was observed when decreasing the target density, which is indicative for an increased laser-accelerated hot electron density at the rear target-vacuum boundary. This is due to channel formation and collimation of the hot electrons inside the target. Particle-in-cell simulations support the experimental observations and show the correlation between channel
doi:10.1017/s002237781400066x
fatcat:nric24zwnrdrhponoandseytda