Abstract—
The formation of plasma on the surface of a current-carrying electrode of a high-current facility when a current flows through it with a linear density of up to 4 MA/cm and is coated with lead foil or ceramic is studied. The propagation velocity of a dense plasma from a stainless steel electrode is 2–10 km/s, and when the electrode is coated with lead, it is 1–6 km/s. In these experiments, there is no load typical for such facilities—a source of intense X-ray radiation. The plasma propagation from ceramic-coated electrodes starts 200 ns later than that for metal electrodes.
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The work was supported in part by the state corporation Rosatom as part of the state contract no. 4х241.9B.18.1048 and by the Russian Foundation for Basic Research (project no. 18-02-00170).
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Aleksandrov, V.V., Branitsky, A.V., Grabovski, E.V. et al. Electric Explosion of a Surface Carrying a Megaampere Current. Plasma Phys. Rep. 46, 604–610 (2020). https://doi.org/10.1134/S1063780X2006001X
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DOI: https://doi.org/10.1134/S1063780X2006001X