Analysis of the processes occurring in a submicrosecond discharge with a linear current density of up to 3 MA/cm through a thick-wall stainless-steel electrode

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• 作者：A. V. Branitsky ; E. V. Grabovski ; V. V. Dzhangobegov…
• 刊名：Plasma physics reports
• 出版年：2016
• 出版时间：April 2016
• 年：2016
• 卷：42
• 期：4
• 页码：338-346
• 全文大小：1,202 KB
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Atoms, Molecules, Clusters and Plasmas
  Russian Library of Science
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1562-6938
• 卷排序：42

文摘

The state of conductors carrying a megampere current from the generator to the load is studied experimentally. It is found that the plasma produced from cylindrical stainless-steel tubes during the passage of a submicrosecond current pulse with a linear density of 3 MA/cm expands with a velocity of 5.5 km/s. Numerical results on the diffusion of the magnetic field induced by a current with a linear density of 1–3MA/cm into metal electrodes agree with the experimental data on the penetration time of the magnetic field. For a linear current density of 3.1 MA/cm, the experimentally determined electric field strength on the inner surface of the tube is 4 kV/cm. The calculated electric field strength on the inner surface of the tube turns out to be two times higher, which can be explained by plasma production on the outer and inner surfaces of the electrode.Original Russian Text © A.V. Branitsky, E.V. Grabovski, V.V. Dzhangobegov, Ya.N. Laukhin, I.N. Mitrofanov, G.M. Oleinik, P.V. Sasorov, S.I. Tkachenko, I.N. Frolov, 2016, published in Fizika Plazmy, 2016, Vol. 42, No. 4, pp. 342–351.