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Author Pi, Liang-Wen ♦ Starace, Anthony F. ♦ Hu, S. X.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PLASMA PHYSICS AND FUSION TECHNOLOGY ♦ COMPUTERIZED SIMULATION ♦ CORRECTIONS ♦ ELECTRONS ♦ HYDROGEN ♦ LASER RADIATION ♦ MONTE CARLO METHOD ♦ PETAWATT POWER RANGE ♦ PHOTON BEAMS ♦ PULSES ♦ RAYLEIGH SCATTERING ♦ RELATIVISTIC RANGE
Abstract Classical relativistic Monte Carlo simulations of petawatt laser acceleration of electrons bound initially in hydrogen-like, highly-charged ions show that both the angles and energies of the laser-accelerated electrons depend on the initial ion positions with respect to the laser focus. Electrons bound in ions located after the laser focus generally acquire higher (≈GeV) energies and are ejected at smaller angles with respect to the laser beam. Our simulations assume a tightly-focused linearly-polarized laser pulse with intensity approaching 10{sup 22 }W/cm{sup 2}. Up to fifth order corrections to the paraxial approximation of the laser field in the focal region are taken into account. In addition to the laser intensity, the Rayleigh length in the focal region is shown to play a significant role in maximizing the final energy of the accelerated electrons. Results are presented for both Ne{sup 9+} and Ar{sup 17+} target ions.
ISSN 1070664X
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-09-15
Publisher Place United States
Journal Physics of Plasmas
Volume Number 22
Issue Number 9


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