Imaging electron trajectories in a laser-wakefield cavity using betatron X-ray radiation.
We demonstrate that betatron x-ray radiation accurately provides direct imaging of electrons trajectories accelerated in laser wakefields. Experimental far field x-ray beam profiles reveal that electrons can follow similar transverse trajectories with typical excursions of 1.5 microm+/-0.5 microm in the plane of laser polarization and 0.7 microm+/-0.2 microm in the plane perpendicular.
Phuoc
Kim Ta
KT
Laboratoire d'Optique Appliquée, ENSTA, CNRS UMR7639, Ecole Polytechnique, Chemin de la Hunière, 91761 Palaiseau, France. kim.tapuoc@ensta.fr
Corde
Sebastien
S
Shah
Rahul
R
Albert
Felicie
F
Fitour
Romuald
R
Rousseau
Jean-Philippe
JP
Burgy
Fréderic
F
Mercier
Brigitte
B
Rousse
Antoine
A