Pulse shortening in a high power backward wave oscillator
- Univ. of New Mexico, Albuquerque, NM (United States). Dept. of Electrical and Computer Engineering
- Texas Tech Univ., Lubbock, TX (United States). Dept. of Electrical Engineering
This paper describes an experimental and theoretical investigation specifically oriented to revealing the various physical phenomena responsible for pulse shortening in a high power backward wave oscillator (BWO). Pulse shortening is common among all long-pulse, electron beam-driven, high power microwave sources. Therefore, data obtained in the course of these investigations should be applicable to a variety of high power microwave sources. Recent experiments, specific to the investigation of pulse shortening, have involved using a collector with a small aperture at varying radii to monitor the beam current profile at different radii as a function of time. These results are correlated with the initiation and cessation of the microwave pulses in separate experiments. PIC simulations are being performed to investigate the causes of beam profile variation and to suggest possible remedies. The paper will present the most recent experimental and theoretical results, as well as plans for future diagnostic development and theoretical investigation.
- OSTI ID:
- 445553
- Report Number(s):
- CONF-960634-; TRN: IM9713%%289
- Resource Relation:
- Conference: 1996 IEEE international conference on plasma science, Boston, MA (United States), 3-5 Jun 1996; Other Information: PBD: 1996; Related Information: Is Part Of IEEE conference record -- Abstracts: 1996 IEEE international conference on plasma science; PB: 324 p.
- Country of Publication:
- United States
- Language:
- English
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