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Density effect on proton acceleration from carbon-containing high-density thin foils irradiated by high-intensity laser pulses

Zhou, C. T. ; Yu, M. Y. ; He, X. T.

Journal of applied physics, 2007-05, Vol.101 (10), p.103302-103302-6 [Periódico revisado por pares]

United States: American Institute of Physics

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  • Título:
    Density effect on proton acceleration from carbon-containing high-density thin foils irradiated by high-intensity laser pulses
  • Autor: Zhou, C. T. ; Yu, M. Y. ; He, X. T.
  • Assuntos: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY ; ACCELERATION ; CARBON ; CARBON IONS ; FOILS ; IRRADIATION ; LASERS ; PLASMA DENSITY ; PLASMA HEATING ; PLASMA SHEATH ; PLASMA SIMULATION ; PROTONS ; PULSES ; TAIL IONS ; TWO-DIMENSIONAL CALCULATIONS
  • É parte de: Journal of applied physics, 2007-05, Vol.101 (10), p.103302-103302-6
  • Descrição: The acceleration of protons in dense plastic foils irradiated by ultrahigh intensity laser pulses is simulated using a two-dimensional hybrid particle-in-cell scheme. For the chosen parameters of the overdense foils of densities ρ = 0.2 , 1, and 3 g ∕ cm 3 and of an ultrahigh intensity ( 2 × 10 20 W ∕ cm 2 ) laser pulse, our simulations illustrate that a high-density target is favorable to high collimation of the target-normal-sheath acceleration protons but less energy for a short acceleration time ( < 100 fs ) . In particular, the difference of strong local heating of the carbon ion for different plasma densities is clearly observed at both the front and rear surfaces of thin solid targets, suggesting that the effect of the density and composition of the targets are also important for correctly simulating energetic ion generation in ultraintense laser-solid interactions.
  • Editor: United States: American Institute of Physics
  • Idioma: Inglês
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