title: Single shot phase contrast imaging using laser-produced Betatron x-ray beams.
abstract: Development of x-ray phase contrast imaging applications with a laboratory scale source have been limited by the long exposure time needed to obtain one image. We demonstrate, using the Betatron x-ray radiation produced when electrons are accelerated and wiggled in the laser-wakefield cavity, that a high-quality phase contrast image of a complex object (here, a bee), located in air, can be obtained with a single laser shot. The Betatron x-ray source used in this proof of principle experiment has a source diameter of 1.7 μm and produces a synchrotron spectrum with critical energy E(c)=12.3±2.5 keV and 10⁹ photons per shot in the whole spectrum.
authors: Institut National de la Recherche Scientifique-Énergie, Matériaux et Télécommunications, Université du Québec, 1650 Lionel Boulet, Varennes J3X 1S2, Québec, Canada. fourmaux@emt.inrs.ca
authors: S
authors: S
authors: Fourmaux
authors: S
authors: S
authors: Corde
authors: K Ta
authors: KT
authors: Phuoc
authors: P
authors: P
authors: Lassonde
authors: G
authors: G
authors: Lebrun
authors: S
authors: S
authors: Payeur
authors: F
authors: F
authors: Martin
authors: S
authors: S
authors: Sebban
authors: V
authors: V
authors: Malka
authors: A
authors: A
authors: Rousse
authors: J C
authors: JC
authors: Kieffer
mesh_terms: D000818:Animals; D001516:Bees; D002138:Calibration; D005240:Feasibility Studies; D007834:Lasers; D057054:Molecular Imaging / Q000379:methods*; D013997:Time Factors; D014965:X-Rays