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Title: Measuring the electron temperature by optical emission spectroscopy in two temperature plasmas at atmospheric pressure: A critical approach

Abstract

The measurement of the electron mean kinetic energy by identifying the electron temperature and the excitation temperature obtained by optical emission spectroscopy is theoretically studied for two temperature argon plasmas at atmospheric pressure. Using a 32-level collisional radiative model in which both electron impact and argon-impact inelastic collisions are taken into account, it has been found that under certain conditions the argon inelastic collisions may cause a decrease of the argon excitation temperature so that the relation T{sub e}>T{sub exc}>T{sub 0} is satisfied. This inequality also appears when electron losses due to diffusion are important and the electron density is lower than its equilibrium value.

Authors:
; ;  [1]
  1. Instituto de Ciencia de Materiales de Sevilla (CSIC-Univ. Sevilla), Dep. Fisica Atomica, Molecular y Nuclear and Dep. Quimica Inorganica (Univ. Sevilla), Av. Americo Vespucio 41092 Sevilla (Spain)
Publication Date:
OSTI Identifier:
20787859
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 99; Journal Issue: 3; Other Information: DOI: 10.1063/1.2170416; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ARGON; ATMOSPHERIC PRESSURE; ATOM COLLISIONS; ELECTRON COLLISIONS; ELECTRON DENSITY; ELECTRON TEMPERATURE; ELECTRONS; EMISSION SPECTROSCOPY; EXCITATION; INELASTIC SCATTERING; ION TEMPERATURE; KINETIC ENERGY; PLASMA; PLASMA DENSITY; PLASMA DIAGNOSTICS

Citation Formats

Yanguas-Gil, A, Cotrino, J, and Gonzalez-Elipe, A R. Measuring the electron temperature by optical emission spectroscopy in two temperature plasmas at atmospheric pressure: A critical approach. United States: N. p., 2006. Web. doi:10.1063/1.2170416.
Yanguas-Gil, A, Cotrino, J, & Gonzalez-Elipe, A R. Measuring the electron temperature by optical emission spectroscopy in two temperature plasmas at atmospheric pressure: A critical approach. United States. https://doi.org/10.1063/1.2170416
Yanguas-Gil, A, Cotrino, J, and Gonzalez-Elipe, A R. 2006. "Measuring the electron temperature by optical emission spectroscopy in two temperature plasmas at atmospheric pressure: A critical approach". United States. https://doi.org/10.1063/1.2170416.
@article{osti_20787859,
title = {Measuring the electron temperature by optical emission spectroscopy in two temperature plasmas at atmospheric pressure: A critical approach},
author = {Yanguas-Gil, A and Cotrino, J and Gonzalez-Elipe, A R},
abstractNote = {The measurement of the electron mean kinetic energy by identifying the electron temperature and the excitation temperature obtained by optical emission spectroscopy is theoretically studied for two temperature argon plasmas at atmospheric pressure. Using a 32-level collisional radiative model in which both electron impact and argon-impact inelastic collisions are taken into account, it has been found that under certain conditions the argon inelastic collisions may cause a decrease of the argon excitation temperature so that the relation T{sub e}>T{sub exc}>T{sub 0} is satisfied. This inequality also appears when electron losses due to diffusion are important and the electron density is lower than its equilibrium value.},
doi = {10.1063/1.2170416},
url = {https://www.osti.gov/biblio/20787859}, journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 3,
volume = 99,
place = {United States},
year = {Wed Feb 01 00:00:00 EST 2006},
month = {Wed Feb 01 00:00:00 EST 2006}
}