X-ray radiography of aluminum cathodes eroded in high-current vacuum arcs

A. G. Rousskikh, A. V. Fedyunin, A. P. Artyomov, A. S. Zhigalin, V. I. Oreshkin

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The aim of the study presented in this paper was to characterize quantitatively the erosion of aluminum cathodes in high-current vacuum arcs. The experimental setup comprised two current generators. The first one, capable of generating a current of amplitude up to 350 kA, was used to produce a plasma jet, that is, the object to be investigated. The second generator was used to produce a source of probe radiation for imaging the object under investigation in soft x rays of energy ħν ≈ 0.5–3 keV. The findings of the study are based on experimental data obtained by electrophysical and radiographic methods. It has been shown that the cathode erosion rate in a high-current vacuum arc is a function of the charge passed through the cathode.

Original languageEnglish
Pages (from-to)704-708
Number of pages5
JournalCurrent Applied Physics
Volume19
Issue number6
DOIs
Publication statusPublished - 1 Jun 2019

Keywords

  • Radiography
  • Vacuum arc
  • X pinch

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

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