Energetics X-Ray Burst Observation in the Collapse of an X-Pinch Conducted in a Small Capacitive Generator of Low Impedance

Cristian Pavez, Adolfo Sepúlveda, Nibaldo Cabrini, José A. Pedreros, Gonzalo Avaria, Patricio I. San Martín, Leopoldo Soto

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In this paper, the experimental results of the behavior of an X-pinch plasma conducted in a small capacitive generator of low impedance and inductance are reported. The generator produces currents of the order of 120 kA in times about 500 ns, when a charging voltage of 24 kV, and wires as load are used. W, Al, and Cu X-pinches of different diameters were tested. The experimental observations show a similar global dynamic to those observed in experiments of higher current and shorter quarter period, with an intense emission of energetics X-rays (>5 keV) generated by plasma dynamics in the cross point of wires. The fast plasma dynamic is evidenced from the strong change of frequency in the current-derivative signal, which is correlated with the X-ray signals observed from the radiation detectors. From the time-integrated pinhole images and time-integrated aperture images, filtered with different aluminum foils of different thicknesses, an estimated X-ray source size of 70 ± 20 μm with energies above 7 keV is obtained.

Original languageEnglish
Article number8506617
Pages (from-to)3829-3836
Number of pages8
JournalIEEE Transactions on Plasma Science
Volume46
Issue number11
DOIs
Publication statusPublished - 1 Nov 2018

Keywords

  • Plasma jets
  • X-pinch
  • X-ray source

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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    Pavez, C., Sepúlveda, A., Cabrini, N., Pedreros, J. A., Avaria, G., San Martín, P. I., & Soto, L. (2018). Energetics X-Ray Burst Observation in the Collapse of an X-Pinch Conducted in a Small Capacitive Generator of Low Impedance. IEEE Transactions on Plasma Science, 46(11), 3829-3836. [8506617]. https://doi.org/10.1109/TPS.2018.2876283