Search Results - "Roybal, W. T."

End-point energy measurements of field emission current in a continuous-wave normal-conducting rf injector by Nguyen, D. C., Moody, N. A., Andrews, H. L., Bolme, G., Castellano, L. J., Heath, C. E., Krawczyk, F. L., Kwon, S. I., McCrady, R., Martinez, F. A., Marroquin, P., Prokop, M., Renneke, R. M., Roybal, P., Roybal, W. T., Tomei, T. L., Torrez, P. A., Tuzel, W. M., Zaugg, T.

“…The LANL/AES normal-conducting radio-frequency injector has been tested at cw cathode gradients up to 10  MV/m. Field-emission electrons from a roughened…”
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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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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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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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Fast Totem-Pole Grid-Catch Mod-Anode Modulator for the Indiana University "LENS" Klystron RF Amplifier System by Reass, W.A., Roybal, W.T., Davis, J.L., Rinckel, T., Durenchek, V.P.

“…This paper provides the electrical design and test results of the newly designed mod-anode modulators for the Indiana University Low Energy Neutron Source…”
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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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High-power Circulator Test Results at 350 MHz and 700 MHz by Roybal, W. T, BradleyIII, J, Rees, D, Torrez, P. A, Warner, D. K, DeBaca, J

“…eConf C000821 (2000) THE06 The high-power RF systems for the Accelerator Production of Tritium (APT) program require high-power circulators at 350 MHz and 700…”
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Lifetime Testing 700 MHz RF Windows for the Accelerator Production of Tritium Program by Cummings, K. A, Borrego, M. D, DeBaca, J, Harrison, J. S, Rodriguez, M. B, Roybal, D. M, Roybal, W. T, Ruggles, S. C, Torrez, P. A, White, G. D

“…eConf C000821:THE04,2000 Radio frequency (RF) windows are historically a point where failure occurs in input-power couplers for accelerators. To understand…”
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