Carrier concentration 2 Electron density measurement 2 Poisson equation 2 Average field 1 Biasing voltages 1 Boundary layers 1 Breakdown threshold 1 Cold ions 1 Collision term 1 Collisionality 1 Cutting torch 1 Different-magnetic fields 1 Drift diffusion 1 Electric fields 1 Electric potential 1 Electron densities 1 Electron mass 1 Electron momentum equations 1 Electron temperature 1 Electrons 1 Filtered arc 1 Fluid dynamics 1 Gas breakdown 1 Hydrodynamic model 1 Ion collisions 1 Ion density 1 Ion velocity 1 Ions 1 Magnetic filters 1 Mean-free path 1