EXPERIMENTS ON GENERATION OF A HIGH-POWER ION-BEAM IN A PLASMA-FILLEDDIODE

The experimental results on high-power ion beams (HPIB) generation in a plasma-filled, spherical-focusing diode with self-magnetic insulatio n that was placed for a load at nanosecond accelerator PARUS of 0.2-TW power and 60-ns pulse duration (in a matched load case) are given. Th e regimes of plasma-filled diode operation and generation of the ion b eam were investigated. For optimal time delay between the plasma gun's pulse and accelerator firing, the stable operation in the plasma open ing switch mode with a power enhancement factor of 2.3 and efficiency of ion beam generation of 20-25% was obtained. The maximal value of th e ion current density reached in the focal plane was 15 kA/cm2.