Interaction of hot gas with electrons

[Stanley514]

Lets say, we have a cathode that emits electrons into the space under
field emission and create a space charge in air.There is no arching of
electrons to anode.We have hot dense gas which blow on space charge
in certain direction.What would be the most likely outcome of interaction
between neutral hot gas molecules and electrons, which create a space charge?
For example,will be electrons blown away uniformly on macroscopic distance
or more likely they will not move for any remarkable distance at all or it will
be very non-uniform interaction?

 

[Vailanor]

The most likely outcome of the interaction between the electrons and the hot dense gas molecules would be that the electrons will be scattered in a non-uniform manner, due to the random motion of the gas molecules. The electrons may travel some distance, but it is unlikely that they will travel any significant distance before being scattered by another molecule.