Polychromatic X-ray Beam from the Acceleration of Energetic Electrons in Ultrafast Laser-Produced Plasmas - Archive ouverte HAL Access content directly
Journal Articles Astrophysics and Space Science Year : 2007

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

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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.

Dates and versions

hal-00573706 , version 1 (04-03-2011)

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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, 2007, 307 (1-3), pp.329-333. ⟨10.1007/s10509-006-9280-z⟩. ⟨hal-00573706⟩
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