Energy Transfer and Ionization Processes in a Reduced-Pressure Argon ICP

Abstract
The spectral characteristics of an argon/helium ICP operated at reduced-pressure are presented. The state population distributions deduced from quantitative intensity measurements for plasma neutral and cationic species suggest that the argon/helium plasma is essentially an argon plasma with respect to energy stratification. Comparisons are made with recently reported results for an atmospheric-pressure argon/helium ICP.