But you did use the tungsten pins? If so, that is very different than most PF devices I’ve run across in literature. Does that not qualify as chewing the sheath? I am curious if tests have been done without the tungsten pins and compared to tests with them.

I agree that an experiment is important to evaluate neutralization of the beam. The point was to say that a particle accelerator is not a good test bed for testing the generator without a gas box to serve as an electron source.