Evaluating Electron and Vibrational Distributions in N2 Flowing Discharges and Post-discharges at Reduced Gas Pressure | Chapter 8 | Plasmas Afterglows with N2 for Surface Treatments synthesis 2024

Relaxation of the electron and vibrational distribution functions have been calculated in function of residence time in N₂ electrical discharges and post discharges. Calculations results are compared to the measurements of N₂ radiative states intensity and N₂(X,v) vibrational density by CARS in an N₂ DC positive column where the following plasma parameters: electron density, gas temperature and electric field have been measured. In the discharge, the vibrational temperature gets bigger with the residence time for t < 10 ^-2 s. In the post-discharge, the vibrational distribution is evolving in such a manner that the high levels are overpopulated as the low vibrational level populations are dropping.

 

Author (s) Details

André Ricard
LAPLACE, Université de Toulouse, CNRS, INPT, UPS, 118 route de Narbonne, 31062 Toulouse Cedex 9, France.

 

Mario Capitelli
Institute of Science and Technology of Plasmas-CNR-Bari, Italy.

 

Please see the book here:- https://doi.org/10.9734/bpi/mono/978-93-49473-93-5/CH8