X-pinch dynamics: Neck formation and implosion

V. I. Oreshkin, S. A. Chaikovsky, A. P. Artyomov, N. A. Labetskaya, A. V. Fedunin, A. G. Rousskikh, A. S. Zhigalin

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We propose a model that describes the neck formation and implosion in an X-pinch. The process is simulated to go in two stages. The first stage is neck formation. This stage begins with an electrical explosion of the wires forming the X-pinch, and at the end of the stage, a micropinch (neck) is formed in the region where the wires are crossed. The second stage is neck implosion. The implosion is accompanied by outflow of matter from the neck region, resulting in the formation of a "hot spot". Analytical estimates obtained in the study under consideration indicate that these stages are approximately equal in duration. Having analyzed the neck implosion dynamics, we have verified a scaling which makes it possible to explain the observed dependences of the time of occurrence of an x-ray pulse on the X-pinch current and mass.

Original languageEnglish
Article number102711
JournalPhysics of Plasmas
Volume21
Issue number10
DOIs
Publication statusPublished - 1 Oct 2014

ASJC Scopus subject areas

  • Condensed Matter Physics

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    Oreshkin, V. I., Chaikovsky, S. A., Artyomov, A. P., Labetskaya, N. A., Fedunin, A. V., Rousskikh, A. G., & Zhigalin, A. S. (2014). X-pinch dynamics: Neck formation and implosion. Physics of Plasmas, 21(10), [102711]. https://doi.org/10.1063/1.4900644