Quasi-monoenergetic electron beams production in a sharp density transition
Plasma Physics
2012-10-03 v1 Accelerator Physics
Abstract
Using a laser plasma accelerator, experiments with a 80 TW and 30 fs laser pulse demonstrated quasi-monoenergetic electron spectra with maximum energy over 0.4 GeV. This is achieved using a supersonic He gas jet and a sharp density ramp generated by a high intensity laser crossing pre-pulse focused 3 ns before the main laser pulse. By adjusting this crossing pre-pulse position inside the gas jet, among the laser shots with electron injection more than 40% can produce quasi-monoenergetic spectra. This could become a relatively straight forward technique to control laser wakefield electron beams parameters.
Keywords
Cite
@article{arxiv.1210.0717,
title = {Quasi-monoenergetic electron beams production in a sharp density transition},
author = {S. Fourmaux and K. Ta Phuoc and P. Lassonde and S. Corde and G. Lebrun and V. Malka and A. Rousse and J. C. Kieffer},
journal= {arXiv preprint arXiv:1210.0717},
year = {2012}
}
Comments
4 pages, 3 figures