Emission properties of apokamp discharge at atmospheric pressure in air, argon, and helium

A. A. Panarin, V. S. Skakun, E. A. Sosnin, V. F. Tarasenko

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Emission spectra of the plasma jet of apokamp discharge in air, helium, and argon are studied. Apokamp at atmospheric pressure is formed in the areas of strengthening of the electric field near the bends in the channel of the pulse-periodic discharge and is directed perpendicularly to the discharge channel. Apokamp consists of a bright narrow “appendage” connected with the discharge channel and with the diffuse jet emerging from the channel. It is shown that, in helium, the emission of the diffuse part of apokamp is dominated by N2 and N2 +, while emission of the “appendage” display lines and bands of He, N2, N2 +, O, and OH. In argon, emission spectra of the diffuse part of the plasma jets contain not only N2 and N2 +, but also Ar lines. It is assumed that the surrounding air plays an important role in the formation of the diffuse part of apokamp in helium and argon.

Original languageEnglish
Pages (from-to)168-174
Number of pages7
JournalOptics and Spectroscopy (English translation of Optika i Spektroskopiya)
Volume122
Issue number2
DOIs
Publication statusPublished - 1 Feb 2017
Externally publishedYes

Fingerprint

Helium
Argon
Discharge (fluid mechanics)
Atmospheric pressure
atmospheric pressure
Plasma jets
helium
argon
appendages
air
Air
plasma jets
emission spectra
Display devices
Electric fields
emerging
electric fields
pulses

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

Cite this

Emission properties of apokamp discharge at atmospheric pressure in air, argon, and helium. / Panarin, A. A.; Skakun, V. S.; Sosnin, E. A.; Tarasenko, V. F.

In: Optics and Spectroscopy (English translation of Optika i Spektroskopiya), Vol. 122, No. 2, 01.02.2017, p. 168-174.

Research output: Contribution to journalArticle

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AB - Emission spectra of the plasma jet of apokamp discharge in air, helium, and argon are studied. Apokamp at atmospheric pressure is formed in the areas of strengthening of the electric field near the bends in the channel of the pulse-periodic discharge and is directed perpendicularly to the discharge channel. Apokamp consists of a bright narrow “appendage” connected with the discharge channel and with the diffuse jet emerging from the channel. It is shown that, in helium, the emission of the diffuse part of apokamp is dominated by N2 and N2 +, while emission of the “appendage” display lines and bands of He, N2, N2 +, O, and OH. In argon, emission spectra of the diffuse part of the plasma jets contain not only N2 and N2 +, but also Ar lines. It is assumed that the surrounding air plays an important role in the formation of the diffuse part of apokamp in helium and argon.

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