Interruptedz-pinch filamentary structure

Kubes, P.; Kravárik, J.; Hakr, J.; Pichal, J.; Kulhánek, P.

doi:10.1007/bf01904152

Cited by 2 publications

(1 citation statement)

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“…15 It was concentrated along a few streams between the dense column and the cathode. The internal form of the spots was investigated by the set up of screaming discs with different diameters placed in the schlieren focus of the diagnostic laser beam and it established the existence of the maximal plasma density gradient in their centre.…”

Section: Introductionmentioning

confidence: 99%

Filamentary structure of plasma produced by compression of puffing deuterium by deuterium or neon plasma sheath on plasma-focus discharge

et al. 2014

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The present experiments were performed on the PF-1000 plasma focus device at a current of 2 MA with the deuterium injected from the gas-puff placed in the axis of the anode face. The XUV frames showed, in contrast with the interferograms, the fine structure: filaments and spots up to 1 mm diameter. In the deuterium filling, the short filaments are registered mainly in the region of the internal plasmoidal structures and their number correlates with the intensity of neutron production. The longer filamentary structure was recorded close to the anode after the constriction decay. The long curve-like filaments with spots were registered in the big bubble formed after the pinch phase in the head of the umbrella shape of the plasma sheath. Filaments can indicate the filamentary structure of the current in the pinch. Together with the filaments, small compact balls a few mm in diameter were registered by both interferometry and XUV frame pictures. They emerge out of the dense column and their life-time can be greater than hundreds of ns. V C 2014 AIP Publishing LLC.

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Section: Introductionmentioning

confidence: 99%