Search Results - "Ludeking, L"

Modeling and Simulation of Relativistic Multiple Electron Beam Generation With Different Energies From a Single-Cathode Potential for High-Power Microwave Sources by Islam, Khandakar Nusrat, Ludeking, L. D., Andreev, Andrey D., Portillo, Salvador, Elfrgani, Ahmed M. N., Schamiloglu, Edl

“…The traveling wave tube (TWT) has been a reliable conventional vacuum electron device (CVED) since the 1940s. Researchers, beginning in the late 1980s,…”
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Emission of an intense electron beam from a ceramic honeycomb by Friedman, M., Myers, M., Hegeler, F., Swanekamp, S. B., Sethian, J. D., Ludeking, L.

“…Inserting a slab of honeycomb ceramic in front of the emitting surface of a large-area cathode improves the electron beam emission uniformity, decreases the…”
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Particle-in-Cell Simulations of Initial Argon Dielectric-Barrier Discharges by Huerta, M A, Ludeking, L D

“…We use the commercial particle-in-cell code MAGIC for simulations of dielectric-barrier discharges (DBDs). The simulations are done in pure argon at…”
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A simulation study of beam loading on a cavity by Wilsen, C.B., Luginsland, J.W., Yue Ying Lau, Antonsen, T.M., Chernin, D.P., Tchou, P.M., Keyser, M.W., Gilgenbach, R.M., Ludeking, L.D.

“…Beam loading exerts a strong influence on the operation of high-power and medium-power microwave sources. This paper reports a simulation study of beam loading…”
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Stability of large-area electron-beam diodes by Friedman, M., Swanekamp, S., Obenschain, S., Chan, Y., Ludeking, L., Smithe, D.

“…In this letter, we report on experimental measurements of an instability in the large-area electron-beam diodes used to pump krypton–fluoride (KrF) lasers. The…”
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High-efficiency relativistic backward wave oscillator: theory and design by Levush, B., Antonsen, T.M., Vlasov, A.N., Nusinovich, G.S., Miller, S.M., Carmel, Y., Granatstein, V.L., Destler, W.W., Bromborsky, A., Schlesiger, C., Abe, D.K., Ludeking, L.

“…Backward wave oscillators (BWOs) driven by high-current relativistic electron beams are capable of producing high-power coherent radiation in the centimeter…”
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User-configurable MAGIC for electromagnetic PIC calculations by Goplen, Bruce, Ludeking, Larry, Smith, David, Warren, Gary

“…MAGIC is a user-configurable code that solves Maxwell's equations together with Lorentz particle motion. A variety of 2D, finite-difference electromagnetic…”
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MHD-to-PIC transition for modeling of conduction and opening in a plasma opening switch by Schumer, J.W., Swanekamp, S.B., Ottinger, P.F., Commisso, R.J., Weber, B.V., Smithe, D.N., Ludeking, L.D.

“…The plasma opening switch (POS) is a critical element of some inductive-energy-storage pulsed-power generators. Detailed understanding of plasma redistribution…”
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Analysis of the 425-MHz Klystrode by Nguyen, K., Warren, G.D., Ludeking, L., Goplen, B.

“…The results of analyses performed on a 500-kW peak power, 425-MHz Klystrode are presented. The Klystrode is an RF amplifier with three basic components; a…”
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Some results of particle in cell simulations of initial argon Dielectric Barrier Discharges by Huerta, M. A., Ludeking, L.

“…Summary form only given. We simulate Dielectric Barrier Discharges (DBD) in Argon using the commercial particle in cell (PIC) code MAGIC. The simulations are…”
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PML (Perfectly Matched Layer) Implementation in the Magic Software by Smithe, D., Ludeking, L.

“…Summary form only given. The PML (perfectly matched layer) boundary condition of Berenger, is implemented in the MAGIC finite-difference particle-in-cell…”
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High-power broadband Ka-band cascaded-TWT development by Khanh Nguyen, Abe, D. K., Ludeking, L., Pershing, D., Levush, B., Wright, E., Pasour, J., Petillo, J., Chernin, D.

“…Summary form only given. The design and implementation of K a -band three-beam cascaded serpentine travelling-wave tube (TWT) amplifiers are presented. In the…”
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Two dimensional simulations of dielectric barrier discharges using the particle in cell code magic by Huerta, M.A., Ludeking, L.

“…Summary form only given. We present some results for DBD (Dielectric Barrier Discharge) simulations using the particle in cell (PIC) code MAGIC with improved…”
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Inductive output tube modeling and simulation code development by Wright, E L, Nguyen, K T, Pasour, J A, Vlasov, A N, Petillo, J J, Kostas, C, Chernyavskiy, I A, DeFord, J F, Held, B L, Ludeking, L

“…The inductive output tube (IOT) is the preferred technology for a number of applications requiring tens to hundreds of kilowatts of RF power at UHF and L-band…”
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An eigenmode solution algorithm based on high-order power iteration with fractally ordered shifts by Smithe, David, Ludeking, Larry

“…This paper presents a technique which allows the high-order power method with shifts to solve reliably for mid-spectrum eigenmodes. Normally, the method fails…”
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Some practical issues in the treatment of electromagnetic boundaries in FDTD-PIC by Woods, A., Ludeking, L.

“…Electromagnetic (EM) boundary treatments have been investigated using the Magic 3D particle-in-cell (PIC) code. The historic conventional free space approach…”
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Proton radiative capture: Giant dipole resonances built on excited states by Londergan, J. T., Ludeking, L. D.

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Correction to "A Simulation Study of Beam Loading on a Cavity" by Wilsen, C.B., Luginsland, J.W., Lau, Y.Y., Antonsen, T.M., Chernin, D.P., Tchou, P.M., Keyser, M.W., Gilgenbach, R.M., Ludeking, L.D.

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Direct-reaction model for ( p , γ ) reactions to highly excited states in C 12 by Londergan, J. T., Ludeking, L. D.

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A simulation study of beam loading on a cavity: High-power microwave generation by WILSEN, Craig B, LUGINSLAND, John W, YUE YING LAU, ANTONSEN, Thomas M, CHERNIN, David P, TCHOU, Philip M, KEYSEI, Marc W, GILGENBACH, Ronald M, LUDEKING, L. D

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