Abstract

This paper surveys the capabilities and limitations of modern thermionic electron sources for producing high emission density (≳10 A/cm2)‐high brightness beams. The emphasis is on dispenser cathodes. The capabilities of existing commercial cathodes as well as the potential for future cathode improvements as demonstrated in various prototype structures are described.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.