An Ultra Miniature Pinch Focus Discharge Operating With Submillimetric Anodes And Energy Of 0.1 Joule: Nanofocus

Soto, Leopoldo; Pavéz, Cristian; Moreno, José
January 2006
AIP Conference Proceedings;2006, Vol. 808 Issue 1, p211
Academic Journal
An ultra miniature device for pinch discharges has been designed and constructed (nanofocus NF: 5nF, 5–10kV, 5–10kA, 60–250 mJ, 16 ns time to peak current). Sub-millimetric anode radii (0.8 and 0.21mm) covered by coaxial insulators were used for experiments in hydrogen. Evidence of pinch was observed in electrical signals in discharges operating at 3mbar and ∼100 mJ. A single-frame image converter camera (4 ns exposure) was used to obtain plasma images in the visible range. The dynamic observed from the photographs is consistent with a dynamic observed in conventional plasma focus discharges. This ultra miniature device has a value for the “plasma energy density parameter” and for the “drive parameter” of the same order or greater than plasma focus devices operating at energies several orders of magnitude higher. © 2006 American Institute of Physics


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