Diffusion of fast rising strong magnetic fields into conductors

N. A. Labetskaya, V. I. Oreshkin, S. A. Chaikovsky, I. M. Datsko, N. I. Kuskova, A. D. Rud

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The basic processes occurring in a conductor exploding in a current skinning mode are the propagation of a nonlinear magnetic diffusion wave in the conductor and the formation of low-temperature plasma at its surface. An experimental study of the phenomenon of nonlinear magnetic diffusion into conductors in magnetic fields of induction rising at a rate up to 3·109 T/s was carried out on the MIG generator capable of producing a peak current up to 2.5 MA within a rise time of 100 ns. It has been found experimentally that the average velocity of a nonlinear magnetic diffusion wave in an aluminum conductor placed in a strong magnetic field (up to 300 T) rising at a high rate (on average, 3·109 T/s) is (2.7÷3.3)·105 cm/s. This is comparable to the velocity of sound in aluminum under normal conditions and reasonably agrees with predictions of numerical simulations.

Original languageEnglish
Article number012020
JournalJournal of Physics: Conference Series
Volume552
Issue number1
DOIs
Publication statusPublished - 2014

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magnetic diffusion
diffusion waves
conductors
magnetic fields
exploding wires
aluminum
cold plasmas
induction
generators
propagation
acoustics
predictions
simulation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Labetskaya, N. A., Oreshkin, V. I., Chaikovsky, S. A., Datsko, I. M., Kuskova, N. I., & Rud, A. D. (2014). Diffusion of fast rising strong magnetic fields into conductors. Journal of Physics: Conference Series, 552(1), [012020]. https://doi.org/10.1088/1742-6596/552/1/012020

Diffusion of fast rising strong magnetic fields into conductors. / Labetskaya, N. A.; Oreshkin, V. I.; Chaikovsky, S. A.; Datsko, I. M.; Kuskova, N. I.; Rud, A. D.

In: Journal of Physics: Conference Series, Vol. 552, No. 1, 012020, 2014.

Research output: Contribution to journalArticle

Labetskaya, N. A. ; Oreshkin, V. I. ; Chaikovsky, S. A. ; Datsko, I. M. ; Kuskova, N. I. ; Rud, A. D. / Diffusion of fast rising strong magnetic fields into conductors. In: Journal of Physics: Conference Series. 2014 ; Vol. 552, No. 1.
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