Density, temperature and size of a plasma produced in single and double shell liner implosions

Single and double shell plasma liner implosion experiments have been performed on the SNOP-3 pulsed generator (Imax≅1 MA, τ≅80 ns). The plasma density and temperature were determined with a technique involving collisional radiative equilibrium calculations and measurements of the K-shell radiation power, the K-shell radiating plasma size, and the He-α to Ly-α line ratio. The resonance-to-intercombination and resonance-to-satellite line ratios were also used to determine the plasma density and the temperature, respectively. It is shown in the paper, that all the mass of the inner shell of the double shell liner is assembled into a tight pinch and high radial compressions (≅45) of the inner shell occur at the appropriate inner shell initial radius