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Quantum-Statistical Modeling of Mixed Inert Gas ICPs

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Abstract:

Relative populations of excited neutral and ionic states in reduced-pressure ICPs supported by a binary mixture of helium and an additional inert gas have been shown to obey Fermi-Dirac statistical counting. A single thermodynamic temperature of 2000 K is sufficient to define the distribution of both neutral and ionic state populations. High-energy states of ionic species exhibit a "blending" between Fermi-Dirac and Boltzmann behavior. Agreement between measured relative populations and the Fermi-Dirac distribution is ~1% overall.

Keywords: Fermi-Dirac distribution; Mixed-gas ICPs; Spectroscopic temperature

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702904086407

Affiliations: Department of Chemistry, Murray State University, Murray Kentucky 42071-3306

Publication date: August 1, 1990

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