Time-resolved X-ray spectroscopy of hot spots in an X-pinch

The plasma parameters in hot spots of an X-pinch are determined by using time-resolved data from X-ray spectroscopy in experiments on the implosion of crossed Ti wires in the XP device with a current of 480 kA and pulse duration of 100 ns. The electron densities and temperatures calculated from these data are in the ranges $(0.8{-}3)\cdot10^{23}~$cm$^{-3}$ and 1–2.5 keV, respectively. An analysis performed shows that the plasma processes are highly nonequilibrium.