The vacuum chamber is not actually part of the circuit as I understand it. The actual plasma paths are from each of the cathodes to the anode, which conducts all of the plasma’s current during the axial phase rundown. The anode itself is actually shaped more like a circular Tee flange. I know it looks misleading in the gallery 🙂
Aeronaut, thanks for the response, but what I was asking was more about how the tee flange anode (as you described) manages to stay insulated from the rest of the chamber. Does the pyrex pass completely through the flange, if so how is it sealed to maintain vacuum?
