Search Results - "Tallerico, P.J."

Dynamics of Retrograde Electrons Returning From the Output Cavity in Klystrons by Roybal, W.T., Carlsten, B.E., Tallerico, P.J.

“…Loss of efficiency and tube oscillations have been attributed to electrons returning from the output cavity in klystrons due to excessive output cavity…”
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Modifications to harmonic current bunching of electron beams from RF cavities due to radial boundary conditions by Carlsten, B.E., Roybal, W.T., Tallerico, P.J.

“…Harmonic current bunching of an electron beam after it passes through a standing-wave RF cavity is well known, with analytic solutions in both the transversely…”
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Green's Function Simulation of Space-Charge Effects in Electron Beams by Carlsten, B.E., Haynes, W.B., Roybal, W.T., Tallerico, P.J.

“…In this paper, a new numerical model for space-charge forces in electron beams based on a Green's function approach is described. In this model, the beam is…”
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A 700 MHz, 1 mW CW RF System for a FEL 100 mA RF Photoinjector by Roybal, W.T., Reass, W.A., Nguyen, D.C., Rees, D.E., Torrez, P.A., Tallerico, P.J.

“…This paper describes a 700 MHz, 1 Megawatt continuous wave (CW), high efficiency klystron RF system utilized for a Free Electron Laser (FEL) high-brightness…”
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A class of deflection-modulated, high-power microwave amplifiers by Tallerico, P.J.

“…An unusual deflection-modulated, fast-wave electron device is analyzed. It has several unique properties; the electron beam is unbunched and is perpendicular…”
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Reliability and Operating Experience of the Lapf 805 MHz System by Tallerico, P.J.

“…Over 750,000 hours have been accumulated on the klystrons and modulators that constitute the LAMPF 805-MHz rf system. The 1-1/4 MW klystrons, the floating-deck…”
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The effects of finite focusing fields on klystron performance by Tallerico, P.J.

“…The effects of a finite or spatially varying focusing field, drift length, and cavity voltage and phase have been studied with a disk-model digital-computer…”
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High power klystron design and analysis by Tallerico, P.J.

“…The effects of cavity voltage, phase, and drift length are studied numerically in the high power, multicavity klystron with the aid of a one-dimensional,…”
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Recycling of a LAMPE klystron by Tallerico, P.J., Cady, R.L.

“…The authors describe the modeling, rebuilding, and testing of a modulating-anode klystron having 1.25 MW peak output power that was originally made for the Los…”
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The RF system for accelerator production of tritium by Rees, D.E., Tallerico, P.J., Lynch, M.T.

“…A high-power proton linac (linear accelerator) is being proposed for the next generation tritium source for accelerator production of tritium (APT). The…”
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Calculation of beam loading using the induced-current method in passive cavities by Rees, D.E., Carlsten, B.E., Humphries, S., Tallerico, P.J.

“…A method for calculating the loaded Q and beam detuning of a passive (gain or idler) cavity in an electron device is presented. It is based on the…”
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The uniform-field magnicon: an architecture more suitable for high-perveance beams by Rees, D.E., Tallerico, P.J., Humphries, S.

“…This paper provides the details and modeling results of a 700-MHz, 2.5-MW, continuous wave, non-conventional magnicon architecture. It then compares the new…”
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Development of a high power klystron for the spallation neutron source by Hargreaves, T.A., Kirshner, M.F., Hansen, R.J., Misaki, Y., True, R.B., Good, G.R., Tallerico, P.J., Reass, W.A.

“…Summary form only given, as follows. The Spallation Neutron Source (SNS) provides an intense beam of neutrons for scattering experiments. The SNS is comprised…”
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Progress on the gyrocon deflection-modulated amplifier by Tallerico, P.J.

“…The gyrocon is a high-power deflection-modulated amplifier that can have excellent spatial bunching and, hence, high dc-to-rf conversion efficiency. A program…”
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Operational results of the Spallation Neutron Source (SNS) polyphase converter-modulator for the 140 kV klystron RF system by Reass, W.A., Doss, J.D., Gribble, R.F., Lynch, M.T., Rees, D.E., Tallerico, P.J., Borovina, D.L.

“…This paper describes the first operational results of the 140 kV, 1 MW average, 11 MW peak, zero-voltage-switching, 20 kHz polyphase bridge, boost…”
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Characterization of a klystrode as a RF source for high-average-power accelerators by Rees, D., Keffeler, D., Roybal, W., Tallerico, P.J.

“…The klystrode is a relatively new type of RF source that has demonstrated DC-to-RF conversion efficiencies in excess of 70% and a control characteristic…”
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A proof-of-principle power converter for the Spallation Neutron Source RF system by Reass, W.A., Doss, J.D., Fresquez, M.G., Miera, D.A., Mirabal, J.S., Tallerico, P.J.

“…The power converter for the SNS RF system is a fast pulsed power supply that transforms 7 kV, 3-phase AC input power into 120 kV pulses with an amplitude of 80…”
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RF system considerations for accelerator production of tritium and the transmutation of nuclear waste by Tallerico, P.J., Lynch, M.T.

“…RF driven proton accelerators for the transmutation of nuclear waste (ATW) or for the production of tritium (APT) require unprecedented amounts of CW RF power…”
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High Performance Klystrons for Accelerator Applications by Tallerico, Paul J.

“…A six cavity, 1¼ MW, 805 MHz klystron for the Los Alamos Meson Physics Facility (LAMPF) has been designed at Los Alamos and fabricated at Litton Industries…”
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The RF System for the los Alamos Free Electron Laser (FEL) by Friedrichs, Carl C., Tallerico, Paul J., Hoffert, William J.

“…The FEL electron linac consists of three buncher cavities: two accelerator cavities and a def lection cavity, each with its own phase-coherent rf source. All…”
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