Highly efficient acceleration and collimation of high-density plasma using laser-induced cavity pressure

Abstract

A novel efficient scheme of acceleration and collimation of dense plasma is proposed and examined. In the proposed scheme, a target placed in a cavity at the entrance of a guiding channel is irradiated by a laser beam introduced into the cavity through a hole and accelerated along the channel by the pressure created and accumulated in the cavity by the hot plasma expanding from the target and the cavity walls. Using 1.315-um, 0.3-ns laser pulse of energy up to 200J and a thin CH target, it was shown that the forward accelerated dense plasma projectile produced from the target can be effectively guided and collimated in the 2-mm cylindrical guiding channel and the energetic efficiency of acceleration in this scheme is an order of magnitude higher than in the case of conventional ablative acceleration.

4 pages, 6 figures

Cited by in corpus (4)

• Suppressing longitudinal double-layer oscillations by using elliptically polarized laser pulses in the hole-boring radiation pressure acceleration regime
• Efficient acceleration of a dense plasma projectile to hyper velocities in the laser-induced cavity pressure acceleration scheme
• Assessment of the reliability of Deconvolution Procedures for RCF Spectroscopy of Laser-Driven Ion Beams
• Production of sub-gigabar pressures by a hyper-velocity impact in the collider using laser-induced cavity pressure acceleration