Polychromatic X-ray Beam from the Acceleration of Energetic Electrons in Ultrafast Laser-Produced Plasmas

Abstract : Polychromatic beams of hard X-rays from ultrafast laser plasma interaction are studied. Just as in a conventional synchrotron, electrons are accelerated and wiggled, but on a much shorter scale of a few millimeters. By focusing a 50 TW CPA laser system (30 fs duration) onto a helium gas jet, we obtained a polychromatic collimated beam (50 mrad) of X-ray radiation in the keV range. In addition, its perfect synchronization with the laser system, its ultrafast duration (≃30 fs) and its brightness (up to 10^8 photons/shot/solid angle at 0.1% BW) will make it applicable to both X-ray science and backlighting to address laboratory astrophysics research issues.
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Submitted on : Friday, March 4, 2011 - 1:06:26 PM
Last modification on : Wednesday, July 3, 2019 - 10:48:02 AM

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Félicie Albert, Kim Ta Phuoc, Rahul Shah, Frédéric Burgy, Jean-Philippe Rousseau, et al.. Polychromatic X-ray Beam from the Acceleration of Energetic Electrons in Ultrafast Laser-Produced Plasmas. Astrophysics and Space Science, Springer Verlag, 2007, 307 (1-3), pp.329-333. ⟨10.1007/s10509-006-9280-z⟩. ⟨hal-00573706⟩

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