High-power laser-driven source of ultra-short X-ray and gamma-ray pulsesT. Zh. Esirkepov, S. V. Bulanov, A. G. Zhidkov, A. S. Pirozhkov and M. KandoEur. Phys. J. D, 55 2 (2009) 457-463DOI: https://doi.org/10.1140/epjd/e2009-00172-y