Title :
Effects of magnetic tapering and tapered tubes on long-pulse, intense e-beam GYRO-BWO microwave emission
Author :
Walter, M.T. ; Gilgenbach, Ronald M. ; Hochman, J.M. ; Rintamaki, J.I. ; Luginsland, John ; Lau, Y.Y. ; Spencer, T.A.
Author_Institution :
Intense Energy Beam Interaction Lab., Michigan Univ., Ann Arbor, MI, USA
Abstract :
Summary form only given, as follows. We summarize the results of a research program to determine the effects of magnetic and tube tapering on the microwave power, pulselength, energy, and frequency spectrum of an intense e-beam gyrotron-backward-wave-oscillator. The electron beam driver is the Michigan Electron Long Beam Accelerator (MELBA) at parameters: V=-0.7 to -0.8 MV, I/sub diode/=1-10 kA, I/sub tube/=1-4 kA, and /spl tau//sub e-beam/=0.4-1 /spl mu/s. Tapering trim coils and interaction regions have been constructed to concentrate experimental efforts within a parameter space of -15%\n\n\t\t
Keywords :
backward wave oscillators; electron beams; gyrotrons; microwave generation; microwave oscillators; -0.7 to -0.8 MV; 1 to 10 kA; 4 to 6 kG; 4.8 to 5.2 GHz; 6.5 MW; 60 MW; MAGIC Code simulations; MELBA; Michigan Electron Long Beam Accelerator; electron beam driver; frequency spectra; frequency spectrum; gyrotron-backward-wave-oscillator; long-pulse intense electron-beam GYRO-BWO microwave emission; magnetic tapering; microwave power; pulselength; tapered tubes; Coils; Diodes; Electron accelerators; Electron beams; Electron tubes; Energy measurement; Frequency; Magnetic field measurement; Particle beams; Tellurium;
Conference_Titel :
Plasma Science, 1995. IEEE Conference Record - Abstracts., 1995 IEEE International Conference on
Conference_Location :
Madison, WI, USA
Print_ISBN :
0-7803-2669-5
DOI :
10.1109/PLASMA.1995.532829
