Ab initio and experimental studies of glow-discharge polymer used in Laser M\'{e}gaJoule capsules

ORAL

Abstract

Equations of state tables used in Initial Confinement Fusion capsule design tools are highly dependent on the cold curve in the multimegabar range. Original ab-initio molecular dynamic simulations were performed to get accurate cold curves of glow-discharge polymer (GDP) plastics. Furthermore the effect of oxygen absorption by GDP structure is studied on the cold curve, as well as its impact on the Hugoniot curves. Results are compared with Hugoniot experimental data obtained in a recent experiment at the LULI2000 laser facility in France. This study leads to improve equation of states knowledge of ablator materials, which is of primary importance for NIF and LMJ experiments.

Authors

  • Pierre Colin-Lalu

    • CEA DAM DIF
  • Ga\"el Huser

    • CEA DAM DIF
  • Vanina Recoules

    • CEA DAM DIF
  • Gwenael Salin

    • CEA DAM DIF