Electron temperature and density of non-thermal atmospheric pressure argon plasma jet by convective wave packet model

The propagation velocities (u(g) ) of argon plasma jet are obtained by intensified charge coupled device (ICCD) camera images at fixed gate width time of 5 ns. The propagation velocities in upstream and downstream regions are in the order of 10(4) - 10(5) m/s. The plasma ambipolar diffusion velocities are measured to be in the order of 10 - 10(2) m/s. Plasma jet discharges are generated by sinusoidal power supply in varying voltages from 2 to 4 kV at repetition frequency of about 40 kHz. By employing convective wave packet model, the electron temperature (T-e ) inside plasma bullet for argon non-thermal atmospheric pressure plasma jet is estimated to be about 1.18 eV. Also, the electron density (n(e) ) is found to be 8.0 x 10(14) - 2.5 x 10(15) cm(-3).