Temperature measurements in a manufactured RF plasma jet in various Ar/N$_{2}$ mixtures

Authors

MOHAMMAD NASIR ROSTAMI RAVARI
ALIREZA GANJOVI
FARIDEH SHOJAEI
AMIR FALAHAT

DOI

10.3906/fiz-1705-10

Abstract

In this paper, using the optical emission spectroscopy technique, a comparative study is performed on the argon excitation and nitrogen vibrational temperatures in the plasma discharge medium of a manufactured RF plasma jet. The argon contribution in the Ar/N$_{2}$ mixture is varied from 70% to 98% and the obtained optical emission spectra from argon and molecular nitrogen are analyzed. The highest emission intensities of neutral argon (Ar I) are recorded in the wavelength range of 790-850 nm. It is seen that, at the higher argon percentages in the mixture, the emission intensity from all the formed species in the plasma discharge medium of the RF plasma jet will increase. In addition, at the lower Ar contributions in the mixture, both the argon excitation and nitrogen vibrational temperatures are higher. Furthermore, it is shown that, at the higher Ar percentages in the mixture, both of the electronic temperatures are decreased.

Keywords

RF plasma jet, optical emission spectroscopy, Ar/N$_{2}$ mixture

First Page

507

Last Page

519

Recommended Citation

RAVARI, MOHAMMAD NASIR ROSTAMI; GANJOVI, ALIREZA; SHOJAEI, FARIDEH; and FALAHAT, AMIR (2017) "Temperature measurements in a manufactured RF plasma jet in various Ar/N$_{2}$ mixtures," Turkish Journal of Physics: Vol. 41: No. 6, Article 4. https://doi.org/10.3906/fiz-1705-10
Available at: https://journals.tubitak.gov.tr/physics/vol41/iss6/4