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Phys Rev Lett. 2004 Sep 24;93(13):135005. Epub 2004 Sep 23.

Production of a keV x-ray beam from synchrotron radiation in relativistic laser-plasma interaction.

Author information

  • 1Laboratoire d'Optique Appliquée, ENSTA, CNRS UMR7639, Ecole Polytechnique, Chemin de la Hunière, 91761 Palaiseau, France.

Abstract

We demonstrate that a beam of x-ray radiation can be generated by simply focusing a single high-intensity laser pulse into a gas jet. A millimeter-scale laser-produced plasma creates, accelerates, and wiggles an ultrashort and relativistic electron bunch. As they propagate in the ion channel produced in the wake of the laser pulse, the accelerated electrons undergo betatron oscillations, generating a femtosecond pulse of synchrotron radiation, which has keV energy and lies within a narrow (50 mrad) cone angle.

PMID:
15524731
[PubMed]
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