Langmuir probes Probes 10 Electron temperature 8 Plasma diagnostics 8 Langmuir probe diagnostics 6 Langmuir probe measurements 6 Plasma diagnostic 6 Plasma jets 6 Radial profiles 6 Atmospheric pressure 4 Carrier concentration 4 Cavity resonators 4 Current voltage curve 4 Cutting arcs 4 Direct current plasmas 4 Electron currents 4 Electron density measurement 4 Heavy particles 4 High energy densities 4 Ion currents 4 Ion saturation 4 Ion saturation current 4 Kinetic equilibrium 4 Large deviations 4 Magnetrons 4 Nitrogen flow rates 4 Nominal power levels 4 Nonlocal thermal equilibrium 4 Nozzles 4 Plasma arc cutting 4