<p>This work developed a simulation to determine the optimal conditions for argon gas pressure, input flow, and magnetic field required for plasma confinement, aiming to compare with an experimental device. The process included designing and meshing the geometry, selecting domains, and assigning physics using finite elements, followed by interpreting the results. The study found minimal differences in plasma densities between the flows of 0.025, 100, and 200 sccm, with a slight variation of 0.21 × 10¹⁸ cm⁻³ between 200 and 0.025 sccm. Due to this small variation, a flow of 0.025 sccm was used in subsequent experiments to reduce argon consumption. At a density of 1.57 × 10¹⁸ cm⁻³, an electron temperature of 3.28&#xa0;eV was reached. A comparison between experimental and simulated results showed a difference margin of 19.10%, with a simulation confidence level of 79.63%.</p> Graphical abstract <p></p>