Stable and polarized Betatron x-ray radiation from a laser plasma accelerator in ionization injection regime
Abstract
Betatron x-ray source from laser plasma interaction combines high brightness, few femtosecond duration and broad band energy spectrum. However, despite these unique features the Betatron source has a crippling drawback preventing its use for applications. Its properties significantly vary shot-to-shot and none of the developments performed so far resolved this problem. In this letter we present a simple method that allows to produce stable and bright Betatron x-ray beams. In addition, we demonstrate that this scheme provides polarized and easily tunable radiation. Experimental results show that the pointing stability is better than 10% of the beam divergence, with flux fluctuation of the order of 20% and a polarization degree reaching up to 80%
Keywords
Cite
@article{arxiv.1509.08629,
title = {Stable and polarized Betatron x-ray radiation from a laser plasma accelerator in ionization injection regime},
author = {Andreas Doepp and Benoit Mahieu and Antoine Doche and Cedric Thaury and Emilien Guillaume and Agustin Lifschitz and Gabriele Grittani and Olle Lund and Martin Hansson and Julien Gautier and Michaela Kozlova and Jean Philippe Goddet and Pascal Rousseau and Amar Tafzi and Victor Malka and Antoine Rousse and Sebastien Corde and Kim Ta Phuoc},
journal= {arXiv preprint arXiv:1509.08629},
year = {2015}
}