Determination of Wavelength Pairs for Electron Temperature Calculation Using Line Intensity Ratio Method in a Helium Atmospheric Pressure Plasma Jet

In recent years, atmospheric pressure plasma jets(APPJ) have received wider attention and applications due to many of their advantages such as cost efficiency, simplicity, and low-temperature operation.[1] This has also increased the need for the study of the properties of the APPJ.[2] Two important discharge parameters for study are the electron temperature and electron density. The effect of these parameters on the plasma jets and their applications such as the plasma jet printer also needs to be studied to build more efficient plasma jet systems.