Rectangular-cross-section high-power gyrotron

Jonathan M. Hochman; Ronald M. Gilgenbach; Reginald L. Jaynes; J. I. Rintamaki; Yue Ying Lau; John W. Luginsland; J. S. Lash; Thomas A. Spencer

doi:10.1117/12.255413

28 October 1996 Rectangular-cross-section high-power gyrotron

Jonathan M. Hochman, Ronald M. Gilgenbach, Reginald L. Jaynes, J. I. Rintamaki, Yue Ying Lau, John W. Luginsland, J. S. Lash, Thomas A. Spencer

Author Affiliations +

Proceedings Volume 2843, Intense Microwave Pulses IV; (1996) https://doi.org/10.1117/12.255413
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

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, v_perp/v_par, 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.

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Jonathan M. Hochman, Ronald M. Gilgenbach, Reginald L. Jaynes, J. I. Rintamaki, Yue Ying Lau, John W. Luginsland, J. S. Lash, and Thomas A. Spencer "Rectangular-cross-section high-power gyrotron", Proc. SPIE 2843, Intense Microwave Pulses IV, (28 October 1996); https://doi.org/10.1117/12.255413

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