Sideband mode competition in a gyrotron oscillator

Journal Article · Mon Dec 28 04:00:00 EST 1992 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.69.3727· OSTI ID:7118292

Guss, W C; Basten, M A; Kreischer, K E; Temkin, R J ^[1]; Antonsen, Jr, T M; Cai, S Y; Saraph, G; Levush, B ^[2]

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1. Plasma Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)
2. Laboratory for Plasma Research, University of Maryland, College Park, Maryland 20742 (United States)

We report the first observation of sideband mode competition in a gyrotron with an overmoded open waveguide resonator. Experiments were conducted in a gyrotron operating in the TE[sub 16,2] mode at 146 GHz. Up to 600 kW of power was generated in 3-[mu]s pulses at 80 kV beam voltage and up to 40 A beam current. A pair of sidebands was excited corresponding to the TE[sub 15,2] and TE[sub 17,2] modes offset by [plus minus]5 GHz. A multimode, multifrequency, self-consistent time-dependent code predicts the excitation of the sidebands with good accuracy.

• DOE Contract Number: AC02-78ET51013
• OSTI ID: 7118292
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 69:26; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700460* -- Fusion Technology-- Heating & Fueling Systems
AMPLIFIERS
DATA
DISPERSION RELATIONS
ELECTRONIC EQUIPMENT
EQUIPMENT
EXPERIMENTAL DATA
FREQUENCY RANGE
Fu
Fuels-- (1992)
GHZ RANGE
GHZ RANGE 100-1000
HEATING
INFORMATION
MICROWAVE AMPLIFIERS
MICROWAVE EQUIPMENT
NUMERICAL DATA
OSCILLATIONS
PLASMA HEATING
POWER
PULSES
RESONATORS
WAVEGUIDES