Phys. Rev. E 74, 045401(R) (2006) [4 pages]

Coherence-based transverse measurement of synchrotron x-ray radiation from relativistic laser-plasma interaction and laser-accelerated electrons

Abstract

References

Citing Articles (4)

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R. C. Shah^1,*, F. Albert¹, K. Ta Phuoc¹, O. Shevchenko¹, D. Boschetto¹, A. Pukhov², S. Kiselev², F. Burgy¹, J.-P. Rousseau¹, and A. Rousse¹
¹Laboratoire d’Optique Appliquée, ENSTA, CNRS UMR7639, Ecole Polytechnique, Chemin de la Hunière, 91761 Palaiseau, France
²Institut fur Theoretische Physik I, Heinrich-Heine-Universität, 40225 Dusseldorf, Germany

Received 12 June 2006; published 17 October 2006

We observe Fresnel edge diffraction of the x-ray beam generated by the relativistic interaction of a high-intensity laser pulse with He gas. The observed diffraction at center energy 4.5 keV agrees with Gaussian incoherent source profile of full-width-half-maximum (FWHM)<8 μm. Analysis indicates this corresponds to an upper limit on the transverse profile of laser-accelerated electrons within the plasma in agreement with three-dimensional, particle-in-cell results (FWHM=4 μm).

URL:

http://link.aps.org/doi/10.1103/PhysRevE.74.045401

DOI:

10.1103/PhysRevE.74.045401

PACS:

41.50.+h, 41.60.−m, 41.75.Jv, 42.25.Fx

^*Electronic address: rahul.shah@ensta.fr

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Phys. Rev. E 74, 045401(R) (2006) [4 pages]

Coherence-based transverse measurement of synchrotron x-ray radiation from relativistic laser-plasma interaction and laser-accelerated electrons