Search Results - "Krawczyk, F."

An ultra-compact x-ray free-electron laser by Rosenzweig, J B, Majernik, N, Robles, R R, Andonian, G, Camacho, O, Fukasawa, A, Kogar, A, Lawler, G, Miao, Jianwei, Musumeci, P, Naranjo, B, Sakai, Y, Candler, R, Pound, B, Pellegrini, C, Emma, C, Halavanau, A, Hastings, J, Li, Z, Nasr, M, Tantawi, S, Anisimov, P., Carlsten, B, Krawczyk, F, Simakov, E, Faillace, L, Ferrario, M, Spataro, B, Karkare, S, Maxson, J, Ma, Y, Wurtele, J, Murokh, A, Zholents, A, Cianchi, A, Cocco, D, van der Geer, S B

“…In the field of beam physics, two frontier topics have taken center stage due to their potential to enable new approaches to discovery in a wide swath of…”
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Stable two-plane focusing for emittance-dominated sheet-beam transport by Carlsten, B. E., Earley, L. M., Krawczyk, F. L., Russell, S. J., Potter, J. M., Ferguson, P., Humphries, S.

“…Two-plane focusing of sheet electron beams will be an essential technology for an emerging class of high-power, 100 to 300 GHz rf sources [Carlsten et al.,…”
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Stability of an emittance-dominated sheet-electron beam in planar wiggler and periodic permanent magnet structures with natural focusing by Carlsten, B. E., Earley, L. M., Krawczyk, F. L., Russell, S. J., Potter, J. M., Ferguson, P., Humphries, S.

“…A sheet-beam traveling-wave amplifier has been proposed as a high-power generator of rf from 95 to 300 GHz, using a microfabricated rf slow-wave structure…”
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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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Technology development for a mm-wave sheet-beam traveling-wave tube by Carlsten, B.E., Russell, S.J., Earley, L.M., Krawczyk, F.L., Potter, J.M., Ferguson, P., Humphries, S.

“…A sheet-beam traveling-wave amplifier has been proposed as a high-power generator of radio frequency (RF) from 95 to 300 GHz, using a microfabricated RF…”
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Publisher’s Note: Stability of an emittance-dominated sheet-electron beam in planar wiggler and periodic permanent magnet structures with natural focusing [Phys. Rev. ST Accel. Beams 8 , 062001 (2005)] by Carlsten, B. E., Earley, L. M., Krawczyk, F. L., Russell, S. J., Potter, J. M., Ferguson, P., Humphries, S.

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The response of the regional longwave radiation balance and climate system in Europe to an idealized afforestation experiment by Breil, Marcus, Krawczyk, Felix, Pinto, Joaquim G

“…Afforestation is an important mitigation strategy for climate change due to its carbon sequestration potential. Besides this favorable biogeochemical effect on…”
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A new static field solver with open boundary conditions in the 3D-CAD-system MAFIA by Krawczyk, F., Weiland, T.

“…The numerical solution of Maxwell's equations involves calculation in a finite volume enclosing the structure of interest. Using simple Dirichlet or Neumann…”
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Use of a multigrid solver in the MAFIA module S3 for electro- and magnetostatic problems by Krawczyk, F., Weiland, T., Steffen, B.

“…The MAFIA codes are fully 3-D codes for solving Maxwell's equations by the finite integration algorithm. SOR schemes are a well tested standard for…”
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Hexachlorobenzene uptake by fathead minnows and macroinvertebrates in recirculating sediment/water systems by Schuytema, G.S, Krawczyk, D.F, Griffis, W.L, Nebeker, A.V, Robideaux, M.L

“…An efficient and reproducible method of direct shoot regeneration from leaf disks in strawberry (Fragaria X ananassa cv. Redcoat) has been developed. The…”
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Status and future of the 3D MAFIA group of codes by Dehler, M., Dohlus, M., Fischerauer, A., Fischerauer, G., Hahne, P., Klatt, R., Krawczyk, F., Propper, T., Schutt, P., Weiland, T., Ebeling, F., Marx, M., Wipf, S.G., Steffen, B., Barts, T., Browman, J., Cooper, R.K., Rodenz, G., Rusthoi, D.

“…An overview is presented of the MAFIA group of fully three-dimensional computer codes for solving Maxwell's equations by the finite integration algorithm. The…”
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The 3-D MAFIA group of electromagnetic codes by Ebeling, F., Klatt, R., Krawczyk, F., Lawinsky, E., Weiland, T., Wipf, S.G., Steffen, B., Barts, T., Browman, M.J., Cooper, R.K., Deaven, H., Rodenz, G.

“…The MAFIA group of fully three-dimensional computer codes for solving Maxwell's equations for a wide range of applications is discussed. The MAFIA family…”
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Beam Line Design, Beam Alignment Procedure, and Initial Results for the W-Band Gain Experiment at Los Alamos by Carlsten, B.E., Earley, L.M., Haynes, W.B., Krawczyk, F.L., Romero, F.P., Russell, S.J., Smirnova, E.I., Zhi-Fu Wang

“…A gain experiment was performed at Los Alamos using a 120-keV 2-A cylindrical electron beam with a ridged waveguide slow-wave structure at 94 GHz,…”
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Beam Line Design, Beam Alignment Procedure, and Initial Results for the -Band Gain Experiment at Los Alamos by Carlsten, B E, Earley, L M, Haynes, W B, Krawczyk, F L, Romero, F P, Russell, S J, Smirnova, E I, Wang, Zhi-Fu

“…A gain experiment was performed at Los Alamos using a 120-keV 2-A cylindrical electron beam with a ridged waveguide slow-wave structure at 94 GHz,…”
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Design study for a superconducting proton linac from 20 to 100 MeV by Wangler, T.P., Garnett, R., Krawczyk, F., Billen, J., Bultman, N., Christensen, K., Fox, W., Wood, R.

“…This superconducting linac concept consists of individual multicell cavities, each driven by a klystrode. Focusing is provided by superconducting quadrupole…”
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An Ultra-Compact X-Ray Free-Electron Laser by Rosenzweig, J. B, Majernik, N, Robles, R. R, Andonian, G, Camacho, O, Fukasawa, A, Kogar, A, Lawler, G, Miao, Jianwei, Musumeci, P, Naranjo, B, Sakai, Y, Candler, R, Pound, B, Pellegrini, C, Emma, C, Halavanau, A, Hastings, J, Li, Z, Nasr, M, Tantawi, S, Anisimov, P, Carlsten, B, Krawczyk, F, Simakov, E, Faillace, L, Ferrario, M, Spataro, B, Karkare, S, Maxson, J, Ma, Y, Wurtele, J, Murokh, A, Zholents, A, Cianchi, A, Cocco, D

“…In the field of beam physics, two frontier topics have taken center stage due to their potential to enable new approaches to discovery in a wide swath of…”
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Chemical and Physical Comparison of Combined and Separate Sewer Discharges by Burm, R. J., Krawczyk, D. F., Harlow, G. L.

“…A comparative study of separate storm-sewer discharges in Ann Arbor, Mich., with combined discharges in Detroit showed that the BOD in the separate discharges…”
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Review of Methods for Cyanide Determination in Sewage by Krawczyk, Daniel F.

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Simulation and Measurement of the Los Alamos 94GHz TWT RF Structure by Earley, L.M., Krawczyk, F.L., Smirnova, E.I., Carlsten, B.E., Wang, Z.F., Haynes, W.B., Russell, S.J.

“…LANL has developed a new vane loaded waveguide RF structure for a sheet beam TWT. The goal was to create a new class of wideband RF structures that allow…”
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RF/thermal/structural analysis of the APT LEDA hot model cavity assembly by Schultheiss, T., Cole, M., Rathke, J., Wood, R., Krawczyk, F., Leslie, P., Schrage, D.

“…A three-dimensional ANSYS RF, Thermal, and Structural analysis has been performed for representative LEDA CCDTL RF structures. Geometry was taken from a…”
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