Gyroharmonic conversion experiments

Journal Article · Fri May 07 00:00:00 EDT 1999 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.59008· OSTI ID:21205509

Hirshfield, J L; LaPointe, M A ^[1]; Ganguly, A K ^[1]

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1. Omega-P, Inc., New Haven, Connecticut 06520 (United States)

Generation of high power microwaves has been observed in experiments where a 250-350 kV, 20-30 A electron beam accelerated in a cyclotron autoresonance accelerator (CARA) passes through a cavity tuned gyroharmonic) and at 8.6 GHz (3rd harmonic) will be described. Theory indicates that high conversion efficiency can be obtained for a high quality beam injected into CARA, and when mode competition can be controlled. Comparisons will be made between the experiments and theory. Planned 7th harmonic experiments will also be described, in which phase matching between the TE-72 mode at 20 GHz, and the TE-11 mode at 2.86 GHz, allows efficient 20 GHz co-generation within the CARA waveguide itself.

• OSTI ID: 21205509
• Journal Information: AIP Conference Proceedings, Vol. 474, Issue 1; Conference: RF98 workshop on high energy density microwaves, Pajaro Dunes, CA (United States), 5-8 Oct 1998; Other Information: DOI: 10.1063/1.59008; (c) 1999 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
AMP BEAM CURRENTS
BEAM INJECTION
CAVITY RESONATORS
COGENERATION
COMPARATIVE EVALUATIONS
CONVERSION
CYCLOTRONS
EFFICIENCY
ELECTRON BEAMS
GHZ RANGE
MICROWAVE RADIATION
WAVEGUIDES