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

Journal Article · Sun Oct 15 00:00:00 EDT 2006 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

DOI:https://doi.org/10.1103/PHYSREVE.74.045401· OSTI ID:21072321

Shah, R C; Albert, F; Ta Phuoc, K; Shevchenko, O; Boschetto, D; Burgy, F; Rousseau, J -P; Rousse, A ^[1]; Pukhov, A; Kiselev, S ^[2]

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1. Laboratoire d'Optique Appliquee, ENSTA, CNRS UMR7639, Ecole Polytechnique, Chemin de la Huniere, 91761 Palaiseau (France)
2. Institut fur Theoretische Physik I, Heinrich-Heine-Universitaet, 40225 Dusseldorf (Germany)

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 {mu}m. 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 {mu}m)

• OSTI ID: 21072321
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Vol. 74, Issue 4; Other Information: DOI: 10.1103/PhysRevE.74.045401; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-651X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BEAM-PLASMA SYSTEMS
KEV RANGE
LASER RADIATION
LIGHT TRANSMISSION
PLASMA
PLASMA DIAGNOSTICS
PULSES
RELATIVISTIC RANGE
SYNCHROTRON RADIATION
THREE-DIMENSIONAL CALCULATIONS
X-RAY DIFFRACTION
X-RAY SOURCES