Two-dimensional numerical study of an atmospheric pressure helium plasma jet with dual-power electrode |
Comparison of electron density among different needle radii at 270 ns after the start of pulse excitation: (a) two-dimensional distributions of electron density, (b) radial distribution of electron density at 0.2 cm from the exit of the nozzle (line in plasma jet of Fig. 10(a) indicates the position of the radial profile). |