Density effect on proton acceleration from carbon-containing high-density thin foils irradiated by high-intensity laser pulses
- Institute of Applied Physics and Computational Mathematics, P. O. Box 8009, Beijing 100088 (China)
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 {rho}=0.2, 1, and 3 g/cm{sup 3} and of an ultrahigh intensity (2x10{sup 20} W/cm{sup 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.
- OSTI ID:
- 20982876
- Journal Information:
- Journal of Applied Physics, Vol. 101, Issue 10; Other Information: DOI: 10.1063/1.2730565; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
Similar Records
Enhanced laser ion acceleration from mass-limited foils
High-energy monoenergetic protons from multistaged acceleration of thin double-layer target by circularly polarized laser