Spectroscopic Measurement of the Temperature of Electrons in Direct Current Argon Plasma

Abstract

A laboratory-made spectrometer of the Cherny-Turner type, belonging to the first generation of spectrometers, was used to perform the optical emission spectroscopy measurements. This spectrophotometer is capable of conducting spectrophotometric assessments across wavelengths ranging from 300 to 1000 nanometers, among other functionalities. Utilizing a technique known as the line ratio method, it accurately gauges the intensity of optical emissions to ascertain the temperature of electrons. Through experimentation involving spectroscopic methods within a power spectrum of 15 - 61 watts and a consistent pressure of 6.5 Torr, a direct correlation between electron temperature and applied power was established.