X-ray generation by laser-cluster interaction

C. Deiss; N. Rohringer; J. Burgdörfer; E. Lamour; C. Prigent; J.P. Rozet; D. Vernhet

doi:doi:10.1051/jp4:2006138007

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Numéro		J. Phys. IV France Volume 138, December 2006


Page(s)		55 - 62
DOI		https://doi.org/10.1051/jp4:2006138007
Publié en ligne		6 janvier 2007

8e Colloque sur les Sources cohérentes et incohérentes UV, VUV et X : Applications et développements récents
R. Moncorgé et J.L. Doualan
J. Phys. IV France 138 (2006) 55-62
DOI: 10.1051/jp4:2006138007

X-ray generation by laser-cluster interaction

C. Deiss¹, N. Rohringer¹, J. Burgdörfer¹, E. Lamour², C. Prigent², J.P. Rozet² and D. Vernhet²

¹ Institute for Theoretical Physics, Vienna University of Technology, 1040 Vienna, Austria
² INSP, Universités P. et M. Curie et D. Diderot, 140 rue de Lourmel, 75015 Paris, France

(Publié en ligne le 6 janvier 2007)

Résumé
We investigate the efficient heating of quasi-free electrons during the interaction of short infrared laser pulses with large rare-gas clusters. In the framework of our mean-field classical transport simulation we are able to explain the emission of characteristic x-rays at moderate laser intensities ( ${\rm I}\sim 10^{15}$ Wcm^{- 2}) where the ponderomotive energy of the electrons is by far to low to allow for the creation of inner-shell vacancies. We identify large-angle elastic electron-ion scattering as an important heating mechanism at moderate laser intensities.