Warp can include a region in which Boltzmann distributed electrons are added. This can be used to simulate a plasma source. The region can be limited by defining
w3d.xbemin = ...
w3d.xbemax = ...
w3d.ybemin = ...
w3d.ybemax = ...
w3d.zbemin = ...
w3d.zbemax = ...
If these limits are not set, they default to +-LARGEPOS.
The distribution itself is given by the following parameters:
w3d.electrontemperature = ... # in eV
w3d.iondensity = ... # in Coulomb/m^3
w3d.plasmapotential = ... # in V
If ions are created inside this plasma, the voltage of the injection source should be the same as the plasmapotential
top.vinject = w3d.plasmapotential