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The Electric Explosion of Conductors in Megagauss Magnetic Fields |
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| Authors: | V I Oreshkin S A Chaikovsky I M Datsko N A Labetskaya E V Oreshkin D V Rybka V A Van’kevich |
| Institution: | 1.Institute of High Current Electronics, Siberian Branch,Russian Academy of Sciences,Tomsk,Russia;2.Tomsk Polytechnic University,Tomsk,Russia;3.Institute of Electrophysics, Ural Branch,Russian Academy of Sciences,Yekaterinburg,Russia;4.Lebedev Physical Institute,Russian Academy of Sciences,Moscow,Russia |
| 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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