\(N_2\) (B, v'=0-12) Populations in Ar-\(N_2\) and \(N_2\) Flowing Afterglows at Atmospheric Gas Pressure

Authors

  • André Ricard LAPLACE, Univ.Paul Sabatier, CNRS, 118 route de Narbonne 31062 Toulouse, France.
  • Freddy Gaboriau LAPLACE, Univ.Paul Sabatier, CNRS, 118 route de Narbonne 31062 Toulouse, France.
  • Anne-Marie Pointu LPGP, Univ.Paris-Sud, 91405 Orsay, France.

DOI:

https://doi.org/10.9734/bpi/mono/978-81-19217-08-3/CH19

Keywords:

Microwave and corona afterglows, high N2 gas pressure, N N recombination, N2(B,v’=0) production

Abstract

Production of N2(B,v') states is analysed from the N2, positive band intensity in Ar-N2 and N2 afterglows of microwave plasmas and in N2 Corona discharges.

In Ar-N2 afterglows of microwave discharges, the N2(B,v') distribution depends on the N2 fraction in Ar. In pure N2 afterglows, it is found that the N2(B,v’=11) state is enhanced by the N+N atom recombination at pressure up to the atmospheric gas pressure.

The other N2(B,v'>0) states are also produced in N2 and Ar-N2 Corona and microwave afterglows by the N+N atom recombination, via the N2(A3\(\Sigma\)+u, w3\(\Delta\)u) attractive curves.

It appears that relaxation of vibrational levels of N2(A) and N2(w ) states at the benefit of the N2 (B,v'=0) state is enhanced in Corona as in Dielectric Barrier Discharge (DBD) afterglows.

Published

2023-04-20

How to Cite

André Ricard, Freddy Gaboriau, & Anne-Marie Pointu. (2023). \(N_2\) (B, v’=0-12) Populations in Ar-\(N_2\) and \(N_2\) Flowing Afterglows at Atmospheric Gas Pressure. Plasmas Afterglows With \(N_2\) for Surface Treatments - Edition 3, 3–15. https://doi.org/10.9734/bpi/mono/978-81-19217-08-3/CH19

Issue

Plasmas Afterglows with \(N_2\) for Surface Treatments - Edition 3

Section

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