Portal de Periódicos da CAPES

Spatial Uniformity of Laser-Accelerated Ultrahigh-Current MeV Electron Propagation in Metals and Insulators

2003; American Physical Society; Volume: 91; Issue: 25 Linguagem: Inglês

10.1103/physrevlett.91.255002

1092-0145

J. Fuchs, T. E. Cowan, P. Audebert, H. Rühl, L. Grémillet, A. Kemp, M. Allen, A. Blažević, J. C. Gauthier, Matthias Geißel, B. M. Hegelich, S. Karsch, P.B. Parks, M. Roth, Y. Sentoku, R. B. Stephens, E. M. Campbell,

High-pressure geophysics and materials

The evolution of laser-generated MeV, MA electron beams propagating through conductors and insulators has been studied by comparing measurement and modeling of the distribution of MeV protons that are sheath accelerated by the propagated electrons. We find that electron flow through metals is uniform and can be laser imprinted, whereas propagation through insulators induces spatial disruption of the fast electrons. Agreement is found with material dependent modeling.