Images of the dense plasma focus phenomenon in the 2-kJ PACO device

Ultra-speed images of visible light emitted by dense plasma focus discharges of the plasma auto-confined (PACO) device are presented. Representative moments, from the very initial stage to the final one, for different operating conditions, are shown here. Qualitative differences between plasma sheaths in different pressure regimes can be observed, even if the stage is the same. Apart from the interesting scientific observations, the beauty of this phenomenon shown in the photographs must be remarked.