Search Results - "Jaynes, R L"

Millimeter-Wave Traveling-Wave Tube Development at the US Naval Research Laboratory by Cook, A. M., Jaynes, R. L., Wood, F. N., Albright, B. S., Vlasov, A. N., Chernyavskiy, I. A., Pasour, J. A., Wright, E. L., Nguyen, K. T., Kimura, T.

“…Millimeter-wave (mmW) traveling-wave tube (TWT) devices are of interest for applications requiring amplifier output power in the >100 W range over…”
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Ka-Band Low-Voltage Multiple-Beam TWT Experiment by Jaynes, R. L., Cook, A. M., Joye, C. D., Wood, F. N., Pasour, J. A., Vlasov, A. N., Chernyavskiy, I. A., Levush, B., Nguyen, K. T., Petillo, J., Jabotinski, V., Albright, B. S.

“…Multiple-beam vacuum electron devices are attractive for compact, high-power device applications because of the increased beam current that can be achieved…”
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Radio frequency plasma processing effects on the emission characteristics of a MeV electron beam cathode by Rintamaki, J. I., Gilgenbach, R. M., Cohen, W. E., Jaynes, R. L., Cuneo, M. E., Menge, P. R.

“…Experiments have proven that surface contaminants on the cathode of an electron beam diode influence electron emission current and impedance collapse. This…”
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Time-frequency analysis of modulation of high-power microwaves by electron-beam voltage fluctuations by Peters, C. W., Jaynes, R. L., Lau, Y. Y., Gilgenbach, R. M., Williams, W. J., Hochman, J. M., Cohen, W. E., Rintamaki, J. I., Vollers, D. E., Spencer, T. A.

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Long-pulse, high-power, large-orbit, coaxial gyrotron oscillator experiments by Jaynes, R.L., Gilgenbach, R.M., Peters, C.W., Cohen, W.E., Lopez, M.R., Lau, Y.Y., Williams, W.J., Spencer, T.A.

“…Long-pulse, large-orbit, coaxial gyrotrons are currently under investigation. The electron beam is generated by the Michigan Electron Long Beam Accelerator…”
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Effects of tapering on gyrotron backward-wave oscillators by Walter, M.T., Gilgenbach, R.M., Luginsland, J.W., Hochman, J.M., Rintamaki, J.I., Jaynes, R.L., Lau, Y.Y., Spencer, T.A.

“…Computer modeling has been utilized to guide gyrotron backward-wave oscillator (gyro-BWO) experiments at the University of Michigan over a wide range of…”
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Velocity ratio measurement diagnostics and simulations of a relativistic electron beam in an axis encircling gyrotron by Jaynes, R.L., Gilgenbach, R.M., Hochman, J.M., Eidietis, N., Rintamaki, J.I., Cohen, W.E., Peters, C.W., Lau, Y.Y., Spencer, T.A.

“…This paper reports on diagnostic experiments and simulations of a large-orbit, axis-encircling gyrotron. The electron's perpendicular to parallel velocity…”
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Polarization control of microwave emission from high power rectangular cross-section gyrotron devices by Hochman, J.M., Gilgenbach, R.M., Jaynes, R.L., Rintamaki, J.I., Lau, Y.Y., Cohen, W.E., Peters, C.W., Spencer, T.A.

“…Results are summarized of experiments on a gyrotron utilizing a rectangular-cross-section (RCS) cavity region. The major issue under investigation is…”
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Investigations of microwave pulse shortening in a high power coaxial gyrotron by Gilgenbach, R.M., Cohen, W.E., Peters, C.W., Lopez, M.R., Jaynes, R.L., Anderson, S.A., Lau, Y.Y., Brake, M.L., Williams, W.J., Spencer, T.A.

“…Experiments have been performed on a coaxial gyrotron driven by the Michigan Electron Long Beam Accelerator (MELBA) at parameters: V=-0.8 MV, I=1-10 kA, and…”
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Velocity ratio measurement diagnostics and simulations of a relativistic electron beam in an axis encircling gyrotron : Special issue on images in plasma science by JAYNES, R. L, GILGENBACH, R. M, HOCHMAN, J. M, EIDIETIS, N, RINTAMAKI, J. I, COHEN, W. E, PETERS, C. W, LAU, Y. Y, SPENCER, T. A

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Optical spectroscopy of plasma in high power microwave pulse shortening experiments driven by a mus e-beam by Gilgenbach, R M, Hochman, J M, Jaynes, R L, Cohen, W E, Rintamaki, J I, Peters, C W, Vollers, D E, Lau, Y Y, Spencer, T A

“…Microwave pulse shortening experiments have been performed on a rectangular-cross-section (RCS) gyrotron driven by the Michigan Electron Long Beam Accelerator…”
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Optical spectroscopy of plasma in high power Microwave pulse shortening experiments driven by a μs e-beam : Special issue on high power microwave generation by GILGENBACH, R. M, HOCHMAN, J. M, JAYNES, R. L, COHEN, W. E, RINTAMAKI, J. I, PETERS, C. W, VOLLERS, D. E, LAU, Y. Y, SPENCER, T. A

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Polarization control of microwave emission from high power rectangular cross-section gyrotron devices : Special issue on high power microwave generation by HOCHMAN, J. M, GILGENBACH, R. M, JAYNES, R. L, RINTAMAKI, J. I, LAU, Y. Y, COHEN, W. E, PETERS, C. W, SPENCER, T. A

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Effects of tapering on gyrotron backward-wave oscillators : Special issue on high power microwave generation by WALTER, M. T, GILBENBACH, R. M, LUGINSLAND, J. W, HOCHMAN, J. M, RINTAMAKI, J. I, JAYNES, R. L, LAU, Y. Y, SPENCER, T. A

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Pulse-shortening observations in large-orbit, coaxial gyrotron high power microwave experiments by Cohen, W.E., Jaynes, R.L., Gilgenbach, R.M., Peters, C.W., Lopez, M.R., Lau, Y.Y., Spencer, T.A.

“…Summary form only given, as follows. Mechanisms of microwave pulse shortening are being investigated with a multi-megawatt, large-orbit, coaxial gyrotron…”
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Radio-frequency plasma cleaning for mitigation of high-power microwave-pulse shortening in a coaxial gyrotron by Cohen, William E., Gilgenbach, Ronald M., Jaynes, Reginald L., Peters, Christopher W., Lopez, Mike R., Lau, Y. Y., Anderson, Scott A., Brake, Mary L., Spencer, Thomas A.

“…Results are reported demonstrating that radio-frequency (rf) plasma cleaning is an effective technique for mitigating microwave-pulse shortening (i.e.,…”
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Microwave production and beam transport in a multi-MW large-orbit, axis encircling, coaxial gyrotron oscillator by Jaynes, R.L., Gilgenbach, R.M., Peters, C.W., Cohen, W.E., Rintamaki, J.I., Hochman, J.M., Lau, Y.Y., Spencer, T.A.

“…Summary form only given, as follows. Large orbit, coaxial gyrotrons are currently under investigation with microwave power up to 40 MW. The electron beam is…”
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Effects of RF plasma processing on the impedance and electron emission characteristics of a MV beam diode by Rintamaki, J.I., Gilgenbach, R.M., Cohen, W.E., Jaynes, R.L., Ang, L.K., Lau, Y.Y., Cuneo, M.E., Menge, P.R.

“…Summary form only given. Experiments have proven that both the surface contaminants and microstructure topography on the cathode of an electron beam diode…”
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Magnetron simulations and experiments by Lopez, M.R., Gilgenbach, R.M., Anderson, S.A., Lau, Y.Y., Brake, M.L., Peters, C.W., Cohen, W.E., Jaynes, R.L., Luginsland, J.W., Spencer, T.A., Lemke, R.W., Price, D., Booske, J.H., McNeely, M.J., Ludeking, L.

“…Summary form only given, as follows. Simulations and experiments are underway at UM to investigate the characteristics of GW-level, cold cathode, relativistic…”
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Contaminant and surface effects on the impedance and plasma emission of a high voltage beam diode by Rintamaki, J.I., Gilgenbach, R.M., Cohen, W.E., Hochman, J.M., Jaynes, R.L., Ang, L.K., Cuneo, M.E., Menge, P.R.

“…Summary form only given. Experiments have proven that both the surface contaminants and the surface topography on the cathode of an e-beam diode influence…”
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