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.
Cite
@article{arxiv.1001.0679,
title = {Highly efficient acceleration and collimation of high-density plasma using laser-induced cavity pressure},
author = {J. Badziak and S. Borodziuk and T. Pisarczyk and T. Chodukowski and E. Krousky and K. Masek and J. Skala and J. Ullschmied and Yong-Joo Rhee},
journal= {arXiv preprint arXiv:1001.0679},
year = {2015}
}
Comments
4 pages, 6 figures