Study of forward accelerated fast electrons in ultrashort TiK alpha sources

Year: 2007

Authors: Labate L., Galimberti M., Giulietti A., Giulietti D., Köster P., Tomassini P., Gizzi LA.

Autors Affiliation: Intense Laser Irradiation Laboratory, IPCF, CNR, viaMoruzzi 1, 56124 Pisa, Italy;
Laboratori Nazionali di Frascati, INFN, via E. Fermi 40, 00044 Frascati (Roma), Italy:
INFN, Sezione di Pisa, largo B. Pontecorvo 3, 56127 Pisa, Italy;
Dip. Fisica, Università di Pisa, largo B. Pontecorvo 3, 56127 Pisa, Italy

Abstract: The results of an experiment aimed at studying hot electrons emerging from a target rear side in ultrashort laser-based K alpha sources are described. In particular, forward accelerated fast electrons propagating through a Ti foil are found to be emitted in a cone perpendicular to the target surface. The energy of these electrons is estimated as well as their divergence. A comparison of the experimental findings with the results of a PIC simulation is also reported, aimed at identifying the physical processes responsible for the production of this forward propagating electron population.


Volume: 86 (2)      Pages from: 229  to: 233

KeyWords: laser-solid interactions; X-ray; hot-electrons; plasma interactions; oblique-incidence
DOI: 10.1007/s00340-006-2404-x

Citations: 26
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