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Title:
Toroidal High-Density Singularity in a Small Plasma Focus
Authors:
Casanova, Federico; Tarifeño-Saldivia, Ariel; Veloso, Felipe; Pavez, Cristian; Clausse, Alejandro; Soto, Leopoldo
Affiliation:
AA(CNEA-CONICET and Universidad Nacional del Centro), AB(CCHEN, Comisión Chilena de Energía Nuclear; , P4, Center for Research and Applications in Plasma Physics and Pulsed Power), AC(CCHEN, Comisión Chilena de Energía Nuclear; , P4, Center for Research and Applications in Plasma Physics and Pulsed Power), AD(CCHEN, Comisión Chilena de Energía Nuclear; , P4, Center for Research and Applications in Plasma Physics and Pulsed Power), AE(CNEA-CONICET and Universidad Nacional del Centro), AF(CCHEN, Comisión Chilena de Energía Nuclear; , P4, Center for Research and Applications in Plasma Physics and Pulsed Power)
Publication:
Journal of Fusion Energy, Volume 31, Issue 3, pp.279-283
Publication Date:
06/2012
Origin:
SPRINGER
Keywords:
Plasma focus, z-pinch, Small fusion devices
Abstract Copyright:
(c) 2012: Springer Science+Business Media, LLC
DOI:
10.1007/s10894-011-9469-1
Bibliographic Code:
2012JFuE...31..279C

Abstract

A toroidal singularity in the current sheet of a Plasma Focus operated at tens of joules (PF-50J) leading to the formation of a high-density singularity on the plasma sheath was observed on interferographic images of discharges in 6 mbar of Deuterium gas. The phenomenon was numerically simulated by means of the 2D numerical code Cshock, which was able to reproduce the plasma kinetics and the evolution of the electrical variables, as well as the formation, movement and density of the plasmoid structure.
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