Spectroscopic studies of hard x-ray free-electron laser-heated foils at 1016 Wcm-2 irradiances
Proceedings of SPIE SPIE, the international society for optics and photonics 8140 (2011) 81400o-81400o-8
Simulations of neon irradiated by intense X-ray laser radiation
High Energy Density Physics 7:3 (2011) 111-116
Abstract:
We present simulations of the charge states produced by the interaction of intense X-ray laser radiation with a neon gas. We model the results of a recent experiment (Young et al., Nature 466, 56 (2010)), where mJ pulses of X-rays, with photon energies ranging from 800 to 2000 eV and pulse lengths ranging from 70 to 340 fs were incident on neon atoms at intensities of up to 1018 W cm-2. Simulations using an adapted version of the SCFLY collisional-radiative code, which included the effect of electron collisions and a simple self-consistent temperature model, result in charge state distributions that are in good agreement with the experimental data. We calculate the electron temperature of the system during the evolution of the plasma, and comment upon the role that collisions may play in determining the charge state distributions as a function of the neon ion number density. © 2011 Elsevier B.V.X-ray laser-induced ablation of lead compounds
Proceedings of SPIE SPIE, the international society for optics and photonics 8077 (2011) 807718-807718-7
In situ x-ray diffraction measurements of the c/a ratio in the high-pressure epsilon phase of shock-compressed polycrystalline iron
PRB American Physical Society 83:14 (2011) 144114
Decay of cystalline order and equilibration during the solid-to-plasma transition induced by 20-fs microfocused 92-eV free-electron-laser pulses.
Phys Rev Lett 106:16 (2011) 164801