Spectroscopic Methods for Determination of Excitation Temperatures of High-Pressure Plasma

A method to determine excitation temperatures based on the optical emission spectroscopy (OES) and Fermi-Dirac distribution was set up, and the temperatures of pure-argon and mixed-gases at different pressures were investigated. In this way we set up a standard process to get the excitation temperatures of plasmas operated at atmospheric and sub-atmospheric pressures.