Experimental study of a 28 GHz high-power long-pulse cyclotron autoresonance maser oscillator

Journal Article · Mon Sep 27 04:00:00 EDT 1993 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.71.2018· OSTI ID:6128314

Alberti, S; Danly, B G; Gulotta, G; Giguet, E; Kimura, T; Menninger, W L; Rullier, J L; Temkin, R J ^[1]

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1. Plasma Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

Experimental results of the first efficient operation of a long pulse cyclotron autoresonance maser oscillator are presented. Output power of 1.9 MW for a beam energy of 450 keV and current of 80 A, corresponding to an efficiency of 5.2%, has been measured at 27.8 GHz in the TE[sub 11] mode of a Bragg resonator. The observed frequency of the cyclotron autoresonance maser emission corresponds to a Doppler unshifted frequency of 2.9 times the relativistic cyclotron frequency. A significant mode competition between the TE[sub 11] and a TM[sub 01] mode is present.

• DOE Contract Number: FG02-89ER14052
• OSTI ID: 6128314
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 71:13; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
AMPLIFIERS
CYCLOTRON RESONANCE
DATA
DOPPLER EFFECT
EFFICIENCY
ELECTRONIC EQUIPMENT
ENERGY RANGE
EQUIPMENT
EXPERIMENTAL DATA
FREQUENCY RANGE
GHZ RANGE
GHZ RANGE 01-100
INFORMATION
MASERS
MICROWAVE AMPLIFIERS
MICROWAVE EQUIPMENT
NONLINEAR PROBLEMS
NUMERICAL DATA
OPERATION
OSCILLATORS
POWER
PULSES
RELATIVISTIC RANGE
RESONANCE