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The Electric Explosion of Conductors in Megagauss Magnetic Fields

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Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

The results are presented from an experimental study of the explosion of copper conductors performed at ~2 MA current pulse with a rise time of 100 ns using the MIG generator. Using a HSFC Pro optical camera, large-scale instabilities with wavelengths of 0.2–0.5 mm are recorded on the surface of the conductor. The instabilities are tongue-shaped ejections of plasma expanding at the speed of sound in the direction opposite the gradient of the magnetic field. The obtained data are analyzed using two-dimensional magnetohydrodynamic simulation. It is shown the emergence of the observed structure was likely due to the growth of flute instabilities.

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Author information

Authors and Affiliations

  1. Institute of High Current Electronics, Siberian Branch, Russian Academy of Sciences, Tomsk, 634055, Russia

    V. I. Oreshkin, S. A. Chaikovsky, I. M. Datsko, N. A. Labetskaya, D. V. Rybka & V. A. Van’kevich

  2. Tomsk Polytechnic University, Tomsk, 634050, Russia

    V. I. Oreshkin

  3. Institute of Electrophysics, Ural Branch, Russian Academy of Sciences, Yekaterinburg, 620016, Russia

    S. A. Chaikovsky

  4. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 119991, Russia

    E. V. Oreshkin

Authors
  1. V. I. Oreshkin
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  2. S. A. Chaikovsky
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  3. I. M. Datsko
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  4. N. A. Labetskaya
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  5. E. V. Oreshkin
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  6. D. V. Rybka
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  7. V. A. Van’kevich
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Corresponding author

Correspondence to V. I. Oreshkin.

Additional information

Original Russian Text © V.I. Oreshkin, S.A. Chaikovsky, I.M. Datsko, N.A. Labetskaya, E.V. Oreshkin, D.V. Rybka, V.A. Van’kevich, 2018, published in Izvestiya Rossiiskoi Akademii Nauk, Seriya Fizicheskaya, 2018, Vol. 82, No. 4.

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Oreshkin, V.I., Chaikovsky, S.A., Datsko, I.M. et al. The Electric Explosion of Conductors in Megagauss Magnetic Fields. Bull. Russ. Acad. Sci. Phys. 82, 399–403 (2018). https://doi.org/10.3103/S1062873818040159

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