Zobrazeno 1 - 10
of 16
pro vyhledávání: '"R. B. McCOWAN"'
Design of an electron gun for a 280 GHz induced-resonance-electron-cyclotron (IREC) maser experiment
Publikováno v:
IEEE Transactions on Electron Devices. 39:1763-1767
A thermionic electron gun capable of generating a high-quality annular electron beam for quasi-optical CARM and induced-resonance-electron-cyclotron (IREC) maser applications has been designed. The 500 kV, 200 A MIG-type electron gun has a curved emi
Publikováno v:
International Journal of Infrared and Millimeter Waves. 12:9-21
Several properties of the Fabry-Perot-type open resonator used in the quasioptical gyrotron (QOG) and the quasioptical induced resonance electron cyclotron (IREC) maser are derived. The electric fields of the normal modes are given for the general ca
Autor:
Arne W. Fliflet, D. L. Hardesty, D. A. Kirkpatrick, Steven H. Gold, M. Sucy, R. B. McCowan, Allen K. Kinkead
Publikováno v:
Journal of Applied Physics. 69:6696-6698
An intense‐beam gyro‐traveling‐wave amplifier experiment has demonstrated an apparent growth rate of 2.2 dB/cm at 35 GHz, with total gain exceeding 30 dB, and an output power of ∼20 MW (±3 dB), corresponding to an efficiency of ∼11%.
Publikováno v:
16th International Conference on Infrared and Millimeter Waves.
A slow-time-scale, single-particle theory of the CARM oscillator with a Fabry-Perot resonator is presented for the case of mirror separation much greater than the Rayleigh length. Analytical results are obtained for the small-signal gain, efficiency
Publikováno v:
15th International Conference on Infrared and Millimeter Waves.
Publikováno v:
International Journal of Electronics. 65:463-475
High Q Bragg resonators are studied for application to millimeter wave CARM oscillators driven by electron beams with power greater than 100 MW. ‘Whispering-gallery’ modes are shown to have the highest Q. The two effects that cause reflections, i
Autor:
Steven H. Gold, Arne W. Fliflet, M. Sucy, Allen K. Kinkead, R. B. McCowan, W. M. Black, V.L. Granatstein
Publikováno v:
IEEE Transactions on Electron Devices. 36:1968-1975
The design of a 10-20-MW 40-ns cyclotron autoresonance maser (CARM) is presented. The basic components of a CARM are a pulseline accelerator, magnetic-field coils, a novel 600-kV 200-A field-emission electron gun designed for p/sub perpendicular to /
Autor:
M. Sucy, Arne W. Fliflet, R. C. Lee, R. B. McCowan, D. L. Hardesty, Allen K. Kinkead, Wallace M. Manheimer, V.L. Granatstein, Steven H. Gold
Publikováno v:
IEEE Transactions on Plasma Science. 16:142-148
A K/sub a/-band gyrotron oscillator powered by a compact pulseline accelerator has been operated using oscillator cavities with and without axial slots. The oscillator was operated at high voltage ( approximately 900 keV) and high current ( approxima
Autor:
Steven H. Gold, D. A. Kirkpatrick, Arne W. Fliflet, C. A. Sullivan, Wallace M. Manheimer, R. B. McCowan
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 285:233-238
The Cyclotron Auto-Resonance Maser (CARM) is under investigation at the US Naval Research Laboratory as an efficient source of high power millimeter-wave and submillimeter-wave radiation for applications such as plasma heating, advanced rf accelerato