Outgassing of Electron Beam Printed Copper

Electron beam printing, or additive manufacturing, of oxygen-free high conductivity copper has demonstrated significant potential for utilization in vacuum electronic devices and their sub-components. Pioneering vacuum electronics community has influenced the additive manufacturing community to develop platforms and processes for printing copper and its alloys. Following demonstrations of ultra-high vacuum hermeticity and measurements of RF losses, evaluation of outgassing of additively manufactured X-band waveguides has been performed. Preliminary results reveal suitable outgassing rates for implementation in ultra-high vacuum systems.