Search Results - "Rintamaki, J.I."

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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Optical spectroscopy of plasma in high power microwave pulse shortening experiments driven by a /spl mu/s 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 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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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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Contamination 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.

“…Experiments have proven that both the surface contaminants and the surface topography on the cathode of an e-beam diode influence impedance collapse and…”
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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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Polarization control in high power microwaves from a rectangular cross section gyrotron by Hochman, J.M., Gilgenbach, R.M., Jaynes, R.J., Rintamaki, J.I., Lau, Y.Y., Spencer, T.A.

“…Summary form only given, as follows. We summarize the results of experiments on a gyrotron utilizing rectangular-cross-section (RCS) interaction cavities…”
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Characterization of RF plasma cleaning protocols for removal of contaminants in high voltage beam diodes by Rintamaki, J.I., Gilgenbach, R.M., Cohen, W.E., Hockman, J.M., Jaynes, R.L., Lau, Y.Y., Ang, L.K., Cuneoa, M.E., Menge, P.R.

“…Summary form only given, as follows. Contaminants have been shown to be a contributing factor to parasitic losses in ion beam diodes. Probable primary…”
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High current, annular e-beam generation and transport experiments by Hochman, J.M., Gilgenbach, R.M., Walter, M.T., Rintamaki, J.I., Luginsland, J., Jaynes, R.L., Lau, Y.Y.

“…Summary form only given, as follows. High current, annular electron beams are important for the Twobetron accelerator and axis-encircling-beam microwave…”
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Effects of magnetic tapering and tapered tubes on long-pulse, intense e-beam GYRO-BWO microwave emission by Walter, M.T., Gilgenbach, R.M., Hochman, J.M., Rintamaki, J.I., Luginsland, J., Lau, Y.Y., Spencer, T.A.

“…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…”
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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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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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Optical spectroscopy of plasma and plasma processing in high power microwave pulse shortening experiments by Cohen, W.E., Gilgenbach, R.M., Jaynes, R.L., Rintamaki, J.I., Peters, C.W., Lau, Y.Y., Spencer, T.A., Scheitrum, G.P., Laurent, L.L.

“…Summary form only given, as follows. Spectroscopic measurements have been performed to characterize the undesired plasma in a multi-megawatt coaxial gyrotron…”
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Experiments and diagnostics of multi-MW, large-orbit, axis-encircling, coaxial gyrotron oscillator by Jaynes, R.L., Gilgenbach, R.M., Cohen, W.E., Hochman, J.M., Rintamaki, J.I., Peters, C.W., Vollers, D.E., Lau, Y.Y., Spencer, T.A.

“…Summary form only given, as follows. Experiments and diagnostics are currently under investigation on large-orbit axis-encircling, coaxial gyrotrons. The…”
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Optical spectroscopy of plasma in high power microwave pulse shortening experiments driven by a microsecond electron beam by Cohenm, W.E., Gilgenbach, R.M., Hochman, J.M., Jaynes, R.L., Rintamaki, J.I., Peters, C.W., Vollers, D.E., Lau, Y.Y., Spencer, T.A.

“…Summary form only given, as follows. Spectroscopic measurements have been performed to characterize the undesired plasma in a multi-megawatt coaxial gyrotron…”
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RF plasma processing for removal of contaminants in a high voltage anode-cathode gap by Rintamaki, J.I., Gilgenbach, R.M., Hochman, J.M., Jaynes, R.L., Lash, J.S., Cohen, W.E., Menge, P.R., Cuneo, M.E.

“…Summary form only given, as follows. Experiments at Sandia National Lab have shown the importance of removing contaminants from ion diodes to reduce parasitic…”
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Relativistic electron beam dynamics in high power gyrotron devices by Jaynes, R.L., Gilgenbach, R.M., Hochman, J.M., Rintamaki, J.I., Lau, Y.Y., Spencer, T.A.

“…Summary form only given. Relativistic electron beam dynamics in gyrotron devices is currently under investigation. Numerical comparisons to previous analytic…”
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Rectangular interaction structures in high power gyrotron devices by Hochman, J.M., Gilgenbach, R.M., Jaynes, R.I., Rintamaki, J.I., Luginsland, J.W., Lash, J.S., Lau, Y.Y., Spencer, T.A.

“…Summary form only given, as follows. Gyrotron devices utilizing rectangular interaction waveguide are currently being investigated. Some current issues under…”
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