Today I’m taking some small steps toward building hot cathode electron gun v2.
Here is a physical diagram and schematic:
This is the hot cathode intended for an electron beam welder. It has 34 mΩ resistance:
The parts of the electron gun will be arranged like this:
This is more simple than most electron guns. I don’t need a carefully focused beam, I just want to shoot a crude beam of electrons into the Polywell.
The next step is to design and build a simple armature to hold the pieces together.