Analysis of X-ray and Thomson scattering data from non-LTE Nb and Ta plasmas

作者：Bastiani Ceccotti S; Bourgaux A C; Bowen C^*; Dorchies F; Gilleron F; Marques J R; Pain J C; Silvert V; Vinci T

来源：High Energy Density Physics, 2015, 16: 41-52.

DOI：10.1016/j.hedp.2015.05.003

• Plasma physics
• X-ray spectroscopy
• Non-LTE population kinetics
• Collisional-radiative modeling

In this paper, we analyse the results of experiments performed on the LULI2000 laser facility. Nb and Ta dot targets were heated by up to similar to 800 J of 2 omega laser light in 1.5 ns pulses. The expanding plasma was characterised by Thomson scattering (TS) of a probe laser beam, and time-integrated L-and M-shell Xray spectroscopy. The TS probe was operated both during laser operation and after the end of the laser pulse, providing ionisation data near the Ne-like or Ni-like closed shells as well as for the recombining plasma. We give the results of 2D radiative hydrodynamics, non-LTE kinetics calculations and detailed spectroscopy that show a satisfactory agreement between experimental and theoretical data.

• 出版日期2015-9
• 单位中国地震局