Simulation of the radiation from the hot spot of an X-pinch

V. I. Oreshkin, A. P. Artyomov, S. A. Chaikovsky, E. V. Oreshkin, A. G. Rousskikh

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Abstract

The results of X-pinch experiments performed using a small-sized pulse generator are analyzed. The generator, capable of producing a 200-kA, 180-ns current, was loaded with an X-pinch made of four 35-μm-diameter aluminum wires. The analysis consists of a one-dimensional radiation magnetohydrodynamic simulation of the formation of a hot spot in an X-pinch, taking into account the outflow of material from the neck region. The radiation loss and the ion species composition of the pinch plasma are calculated based on a stationary collisional-radiative model, including balance equations for the populations of individual levels. With this model, good agreement between simulation predictions and experimental data has been achieved: the experimental and the calculated radiation power and pulse duration differ by no more than twofold. It has been shown that the x-ray pulse is formed in the radiative collapse region, near its boundary.

Original languageEnglish
Article number012703
JournalPhysics of Plasmas
Volume24
Issue number1
DOIs
Publication statusPublished - 1 Jan 2017

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ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Oreshkin, V. I., Artyomov, A. P., Chaikovsky, S. A., Oreshkin, E. V., & Rousskikh, A. G. (2017). Simulation of the radiation from the hot spot of an X-pinch. Physics of Plasmas, 24(1), [012703]. https://doi.org/10.1063/1.4974169