28 October 1996 Rectangular-cross-section high-power gyrotron
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Abstract
Experiments are underway to generate high power, long-pulse microwaves by the gyrotron mechanism in rectangular-cross- section interaction tubes. Long-pulse electron beams are generated by MELBA (Michigan Electron Long Beam Accelerator), which operates with parameters: -0.8 MV, 1 - 10 kA diode current, and 0.5 - 1 microsecond pulselength. Multimegawatt range microwave power levels have been generated. Adjustment of the solenoidal magnetic field is being studied for polarization control. Polarization power ratios up to a factor of 15 have been achieved. Electron beam dynamics, i.e. beam alpha (the ratio of the beam perpendicular velocity to the parallel velocity, vperp/vpar, are being measured by radiation darkening on glass plates. Computer modelling utilized the MAGIC Code and a single particle orbit code into which are injected a distribution of electron angles or energies. Both small- orbit and large orbit (rotating) e-beams are being investigated.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jonathan M. Hochman, Jonathan M. Hochman, Ronald M. Gilgenbach, Ronald M. Gilgenbach, Reginald L. Jaynes, Reginald L. Jaynes, J. I. Rintamaki, J. I. Rintamaki, Yue Ying Lau, Yue Ying Lau, John W. Luginsland, John W. Luginsland, J. S. Lash, J. S. Lash, Thomas A. Spencer, Thomas A. Spencer, } "Rectangular-cross-section high-power gyrotron", Proc. SPIE 2843, Intense Microwave Pulses IV, (28 October 1996); doi: 10.1117/12.255413; https://doi.org/10.1117/12.255413
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