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Abstract <p>The work is devoted to the study of the structure of plasma jets formed by a high-current vacuum arc discharge. The experiments were conducted on the high-current generator IMRI-5 with a current amplitude of 250 KA. The plasma jet was formed while burning a vacuum arc discharge between coaxial aluminum electrodes with initiation on the surface of a capropolon dielectric. The following were registered in the experiments: a current flowing along the plasma jet at different distances from the plasma gun cathode; visible image of a plasma jet at different moments in time with an exposure of 10 ns; the propagation speed of the plasma jet. Numerical simulation of the evolution of the plasma jet was carried out. The results of the simulation are compared with the experiments.</p>

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Structure of Plasma Jets Formed by a High-Current Vacuum Arc Discharge

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • A. G. Rousskikh,
  • A. S. Zhigalin,
  • V. I. Oreshkin,
  • A. M. Kuzminykh,
  • D. L. Shmelev,
  • V. A. Gasilov

摘要

Abstract

The work is devoted to the study of the structure of plasma jets formed by a high-current vacuum arc discharge. The experiments were conducted on the high-current generator IMRI-5 with a current amplitude of 250 KA. The plasma jet was formed while burning a vacuum arc discharge between coaxial aluminum electrodes with initiation on the surface of a capropolon dielectric. The following were registered in the experiments: a current flowing along the plasma jet at different distances from the plasma gun cathode; visible image of a plasma jet at different moments in time with an exposure of 10 ns; the propagation speed of the plasma jet. Numerical simulation of the evolution of the plasma jet was carried out. The results of the simulation are compared with the experiments.