Research Article
Characterization of an Atmospheric-Pressure Argon Plasma Generated by 915 MHz Microwaves Using Optical Emission Spectroscopy
Figure 3
Example of Boltzmann plot for determination of the Texc. Inm—intensity of the recorded emission line from transition n → m, microwave power absorbed PA = 3 kW, and argon flow rate Q = 50 l/min.