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

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 language	English
Pages (from-to)	704-708
Number of pages	5
Journal	Current Applied Physics
Volume	19
Issue number	6
DOIs	https://doi.org/10.1016/j.cap.2019.03.015
Publication status	Published - 1 Jun 2019

Keywords

Radiography
Vacuum arc
X pinch

ASJC Scopus subject areas

Materials Science(all)
Physics and Astronomy(all)

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10.1016/j.cap.2019.03.015

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title = "X-ray radiography of aluminum cathodes eroded in high-current vacuum arcs",

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.",

keywords = "Radiography, Vacuum arc, X pinch",

author = "Rousskikh, {A. G.} and Fedyunin, {A. V.} and Artyomov, {A. P.} and Zhigalin, {A. S.} and Oreshkin, {V. I.}",

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doi = "10.1016/j.cap.2019.03.015",

language = "English",

volume = "19",

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journal = "Current Applied Physics",

issn = "1567-1739",

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T1 - X-ray radiography of aluminum cathodes eroded in high-current vacuum arcs

AU - Rousskikh, A. G.

AU - Fedyunin, A. V.

AU - Artyomov, A. P.

AU - Zhigalin, A. S.

AU - Oreshkin, V. I.

PY - 2019/6/1

Y1 - 2019/6/1

N2 - 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.

AB - 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.

KW - Radiography

KW - Vacuum arc

KW - X pinch

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