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6 papers · 2 filters
Single shot phase contrast imaging using laser-produced Betatron x-ray beams
S. Fourmaux, S. Corde, K. Ta Phuoc +8
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, usin…
Comment on "Scalings for radiation from plasma bubbles" [Phys. Plasmas 17, 056708 (2010)]
S. Corde, A. Stordeur, V. Malka
Thomas has recently derived scaling laws for X-ray radiation from electrons accelerated in plasma bubbles, as well as a threshold for the self-injection of background electrons int…
Demonstration of the synchrotron-type spectrum of laser-produced Betatron radiation
S. Fourmaux, S. Corde, K. Ta Phuoc +10
Betatron X-ray radiation in laser-plasma accelerators is produced when electrons are accelerated and wiggled in the laser-wakefield cavity. This femtosecond source, producing inten…
Plasma wave undulator for laser-accelerated electrons
S. Corde, K. Ta Phuoc
Laser-plasma accelerators have become compact sources of ultrashort electron bunches at energies up to the gigaelectronvolt range thanks to the remarkable progress made over the pa…
Study of the interplay between magnetic shear and resonances using Hamiltonian models for the magnetic field lines
Marie-Christine Firpo, Dana Constantinescu
The issue of magnetic confinement in magnetic fusion devices is addressed within a purely magnetic approach. Using some Hamiltonian models for the magnetic field lines, the dual im…
Anomalous Self-Generated Electrostatic Fields in Nanosecond Laser-Plasma Interaction
L. Lancia, M. Grech, S. Weber +15
Electrostatic (E) fields associated with the interaction of a well-controlled, high-power, nanosecond laser pulse with an underdense plasma are diagnosed by proton radiography. Usi…