Influence of the Variation of Current and Frequency on the Discharge’s Parameters

Inductively coupled plasma of Mercury-Argon composition was investigated using a numerical simulation based on finite elements method at low pressure (6 m torr of Hg and 300 m torr of Ar). A self-consistent model working at a frequency of 250 kHz was developed using the plasma module in Comsol Multiphysics for studying the discharge phenomena. The 3-D plasma model gives a description of the influence of some parameters that characterize the discharge such as the electron density and electron temperature for various inputs' current and frequency. The purpose of this article is to obtain the optimal operating conditions of the discharge and to show the veracity of the 3-D model taking into account some assumption used to simplify the model. The performance of the electrodeless fluorescent lamps can be depicted, which will contribute to a further optimization of the RF inductions' lamps to reduce the energy consumption.