K-line spectra of warm, dense plasmas produced by intense pulsed electron beams

Warm, dense plasmas can be produced at the tip of a plasmafilled rod-pinch diode1 (PFRP) on the Gamble II generator at the Naval Research Laboratory. The PFRP concentrates a high current (500 kA), 2 MeV, 60 ns electron beam at the pointed end of a 1 mm diameter tapered tungsten rod. At the time of maximum thermal energy density, the tungsten plasma parameters are estimated to be: 12 times ionized, near solid density (20 g/cm3), 25 eV, and 2.4 MJ/cm3.