Abstract
Electron beam (e-beam) generation in high power vacuum diodes results in anode and cathode plasma formation. It is well documented that expansion of these plasmas into the A-K gap may adversely affect diode performance during the main e-beam pulse. Ionized gases exist after the main pulse and can limit diode performance. For a given repetitively pulsed driver, diode physics will depend largely on the emitter material used in the cathode, the anode material, the electric field E, dE/dt, current density (J), vacuum pumping speed, the pulse width, and the pulse repetition frequency (PRF). For single shots and at a PRF of 1 pulse per second (PPS) taken on the NRL Solid State Pulser, diode plasmas are investigated using dielectric fiber velvet and graphite cathodes. A fiber laser interferometer is used to measure the line density of plasma at the cathode. A gated camera is fielded for nanosecond resolution of plasma emissions at axial positions across the anode-cathode gap.
Sign-in/Register to access full text options 
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 callDisclaimer: 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.
