Effect of the axial magnetic field on a metallic gas-puff pinch implosion

A. G. Rousskikh, A. S. Zhigalin, V. I. Oreshkin, V. Frolova, A. L. Velikovich, G. Yu Yushkov, R. B. Baksht

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The effect of an axial magnetic field Bz on an imploding metallic gas-puff Z-pinch was studied using 2D time-gated visible self-emission imaging. Experiments were performed on the IMRI-5 generator (450 kA, 450 ns). The ambient field Bz was varied from 0.15 to 1.35 T. It was found that the initial density profile of a metallic gas-puff Z-pinch can be approximated by a power law. Time-gated images showed that the magneto-Rayleigh-Taylor instabilities were suppressed during the run-in phase both without axial magnetic field and with axial magnetic field. Helical instability structures were detected during the stagnation phase for Bz < 1.1 T. For Bz = 1.35 T, the pinch plasma boundary was observed to be stable in both run-in and stagnation phases. When a magnetic field of 0.3 T was applied to the pinch, the soft x-ray energy was about twice that generated without axial magnetic field, mostly due to longer dwell time at stagnation.

Original languageEnglish
Article number063502
JournalPhysics of Plasmas
Volume23
Issue number6
DOIs
Publication statusPublished - 1 Jun 2016

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implosions
gases
magnetic fields
plasma pinch
dwell
Taylor instability
generators
profiles
x rays
energy

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Rousskikh, A. G., Zhigalin, A. S., Oreshkin, V. I., Frolova, V., Velikovich, A. L., Yushkov, G. Y., & Baksht, R. B. (2016). Effect of the axial magnetic field on a metallic gas-puff pinch implosion. Physics of Plasmas, 23(6), [063502]. https://doi.org/10.1063/1.4953048

Effect of the axial magnetic field on a metallic gas-puff pinch implosion. / Rousskikh, A. G.; Zhigalin, A. S.; Oreshkin, V. I.; Frolova, V.; Velikovich, A. L.; Yushkov, G. Yu; Baksht, R. B.

In: Physics of Plasmas, Vol. 23, No. 6, 063502, 01.06.2016.

Research output: Contribution to journalArticle

Rousskikh, AG, Zhigalin, AS, Oreshkin, VI, Frolova, V, Velikovich, AL, Yushkov, GY & Baksht, RB 2016, 'Effect of the axial magnetic field on a metallic gas-puff pinch implosion', Physics of Plasmas, vol. 23, no. 6, 063502. https://doi.org/10.1063/1.4953048
Rousskikh AG, Zhigalin AS, Oreshkin VI, Frolova V, Velikovich AL, Yushkov GY et al. Effect of the axial magnetic field on a metallic gas-puff pinch implosion. Physics of Plasmas. 2016 Jun 1;23(6). 063502. https://doi.org/10.1063/1.4953048
Rousskikh, A. G. ; Zhigalin, A. S. ; Oreshkin, V. I. ; Frolova, V. ; Velikovich, A. L. ; Yushkov, G. Yu ; Baksht, R. B. / Effect of the axial magnetic field on a metallic gas-puff pinch implosion. In: Physics of Plasmas. 2016 ; Vol. 23, No. 6.
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