Mesotube with header insulator

摘要

A mesotube apparatus is disclosed which includes a header insulator in order to avoid premature breakdown at lower voltage that occurs between a cathode and an anode in a discharge assembly. A chamber can be mounted on a header base and can be located away from plasma surrounded with dielectric so that breakdown occurs outside the normal voltage operating range. A number of feed-through pins associated with the header base can be electrically isolated from the header base by a dielectric insulator. The dielectric insulator can also be placed over the header base and topside of the chamber in order to passivate from stray electrons and plasma. The header base can be thin which allows welding of the anode and the cathode to the feed-through pins with a weld tool attached to the side of the feed-through pins. The chamber can be located on the header base by tightly fitting to the feed-through pins.