Search Results - "LeChien, K. R"

Impedance-matched Marx generators by Stygar, W. A., LeChien, K. R., Mazarakis, M. G., Savage, M. E., Stoltzfus, B. S., Austin, K. N., Breden, E. W., Cuneo, M. E., Hutsel, B. T., Lewis, S. A., McKee, G. R., Moore, J. K., Mulville, T. D., Muron, D. J., Reisman, D. B., Sceiford, M. E., Wisher, M. L.

“…We have conceived a new class of prime-power sources for pulsed-power accelerators: impedance-matched Marx generators (IMGs). The fundamental building block of…”
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Shaping the output pulse of a linear-transformer-driver module by Stygar, W. A., Fowler, W. E., LeChien, K. R., Long, F. W., Mazarakis, M. G., McKee, G. R., McKenney, J. L., Porter, J. L., Savage, M. E., Stoltzfus, B. S., Van De Valde, D. M., Woodworth, J. R.

“…We demonstrate that a wide variety of current-pulse shapes can be generated using a linear-transformer-driver (LTD) module that drives an internal…”
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Displacement current phenomena in the magnetically insulated transmission lines of the refurbished Z accelerator by McBride, R. D., Jennings, C. A., Vesey, R. A., Rochau, G. A., Savage, M. E., Stygar, W. A., Cuneo, M. E., Sinars, D. B., Jones, M., LeChien, K. R., Lopez, M. R., Moore, J. K., Struve, K. W., Wagoner, T. C., Waisman, E. M.

“…Experimental data is presented that illustrates important displacement current phenomena in the magnetically insulated transmission lines (MITLs) of the…”
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6.1-MV, 0.79-MA laser-triggered gas switch for multimodule, multiterawatt pulsed-power accelerators by LeChien, K. R., Stygar, W. A., Savage, M. E., Wakeland, P. E., Anaya, V., Artery, D. S., Baremore, M. J., Bliss, D. E., Chavez, R., Coombs, G. D., Corley, J. P., Jones, P. A., Kipp, A. K., Lewis, B. A., Lott, J. A., Lynch, J. J., McKee, G. R., Ploor, S. D., Prestwich, K. R., Roznowski, S. A., Spencer, D. C., White, S. D., Woodworth, J. R.

“…A 6.1-MV, 0.79-MA laser-triggered gas switch (LTGS) is used to synchronize the 36 modules of the Z machine at Sandia National Laboratories. Each module…”
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Dielectric-breakdown tests of water at 6 MV by Stygar, W. A., Savage, M. E., Wagoner, T. C., Bennett, L. F., Corley, J. P., Donovan, G. L., Fehl, D. L., Ives, H. C., LeChien, K. R, Leifeste, G. T., Long, F. W., McKee, R. G., Mills, J. A., Moore, J. K., Ramirez, J. J., Stoltzfus, B. S., Struve, K. W., Woodworth, J. R.

“…We have conducted dielectric-breakdown tests on water subject to a single unipolar pulse. The peak voltages used for the tests range from 5.8 to 6.8 MV; the…”
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Development of a 5.4 MV laser triggered gas switch for multimodule, multimegampere pulsed power drivers by LeChien, K., Savage, M., Anaya, V., Bliss, D., Clark, W., Corley, J., Feltz, G., Garrity, J., Guthrie, D., Hodge, K., Maenchen, J., Maier, R., Prestwich, K., Struve, K., Stygar, W., Thompson, T., Van Den Avyle, J., Wakeland, P., Wallace, Z., Woodworth, J.

“…Laser triggered, megavolt, megampere gas switches are frequently utilized to synchronize multiple pulsed power driver modules for inertial-confinement fusion,…”
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Circuit Model for Driving Three-Dimensional Resistive MHD Wire Array Z -Pinch Calculations by Jennings, Chris A, Chittenden, Jeremy P, Cuneo, Michael E, Stygar, W A, Ampleford, David J, Waisman, E M, Jones, M, Savage, M E, LeChien, K R, Wagoner, T C

“…Compact tungsten wire array Z -pinches imploded on the Z generator at Sandia National Laboratories have proven to be a powerful reproducible X-ray source. Wire…”
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Conceptual design of a 10^{13}-W pulsed-power accelerator for megajoule-class dynamic-material-physics experiments by W. A. Stygar, D. B. Reisman, B. S. Stoltzfus, K. N. Austin, T. Ao, J. F. Benage, E. W. Breden, R. A. Cooper, M. E. Cuneo, J.-P. Davis, J. B. Ennis, P. D. Gard, G. W. Greiser, F. R. Gruner, T. A. Haill, B. T. Hutsel, P. A. Jones, K. R. LeChien, J. J. Leckbee, S. A. Lewis, D. J. Lucero, G. R. McKee, J. K. Moore, T. D. Mulville, D. J. Muron, S. Root, M. E. Savage, M. E. Sceiford, R. B. Spielman, E. M. Waisman, M. L. Wisher

“…We have developed a conceptual design of a next-generation pulsed-power accelerator that is optimized for megajoule-class dynamic-material-physics experiments…”
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Circuit models and three-dimensional electromagnetic simulations of a 1-MA linear transformer driver stage by Rose, D. V., Miller, C. L., Welch, D. R., Clark, R. E., Madrid, E. A., Mostrom, C. B., Stygar, W. A., LeChien, K. R., Mazarakis, M. A., Langston, W. L., Porter, J. L., Woodworth, J. R.

“…A 3D fully electromagnetic (EM) model of the principal pulsed-power components of a high-current linear transformer driver (LTD) has been developed. LTD…”
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Conceptual design of a 10 13 -W pulsed-power accelerator for megajoule-class dynamic-material-physics experiments by Stygar, W. A., Reisman, D. B., Stoltzfus, B. S., Austin, K. N., Ao, T., Benage, J. F., Breden, E. W., Cooper, R. A., Cuneo, M. E., Davis, J.-P., Ennis, J. B., Gard, P. D., Greiser, G. W., Gruner, F. R., Haill, T. A., Hutsel, B. T., Jones, P. A., LeChien, K. R., Leckbee, J. J., Lewis, S. A., Lucero, D. J., McKee, G. R., Moore, J. K., Mulville, T. D., Muron, D. J., Root, S., Savage, M. E., Sceiford, M. E., Spielman, R. B., Waisman, E. M., Wisher, M. L.

“…In this study, we have developed a conceptual design of a next-generation pulsed-power accelerator that is optmized for driving megajoule-class…”
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Numerical Improvements in Magnetohydrodynamic, Pulsed Power Simulations of Near-Target Plasmas by Farmer, W. A., Ellison, C. L., Hammer, J. H., LeChien, K. R., Meezan, N. B., Raman, K. S., Svidzinski, V., Tummel, K.

“…Magnetohydrodynamic (MHD) simulations of pulsed power experiments frequently result in unphysical runaway heating when extended to low values of mass density…”
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Conceptual designs of two petawatt-class pulsed-power accelerators for high-energy-density-physics experiments by Stygar, W. A., Awe, T. J., Bailey, J. E., Bennett, N. L., Breden, E. W., Campbell, E. M., Clark, R. E., Cooper, R. A., Cuneo, M. E., Ennis, J. B., Fehl, D. L., Genoni, T. C., Gomez, M. R., Greiser, G. W., Gruner, F. R., Herrmann, M. C., Hutsel, B. T., Jennings, C. A., Jobe, D. O., Jones, B. M., Jones, M. C., Jones, P. A., Knapp, P. F., Lash, J. S., LeChien, K. R., Leckbee, J. J., Leeper, R. J., Lewis, S. A., Long, F. W., Lucero, D. J., Madrid, E. A., Martin, M. R., Matzen, M. K., Mazarakis, M. G., McBride, R. D., McKee, G. R., Miller, C. L., Moore, J. K., Mostrom, C. B., Mulville, T. D., Peterson, K. J., Porter, J. L., Reisman, D. B., Rochau, G. A., Rochau, G. E., Rose, D. V., Rovang, D. C., Savage, M. E., Sceiford, M. E., Schmit, P. F., Schneider, R. F., Schwarz, J., Sefkow, A. B., Sinars, D. B., Slutz, S. A., Spielman, R. B., Stoltzfus, B. S., Thoma, C., Vesey, R. A., Wakeland, P. E., Welch, D. R., Wisher, M. L., Woodworth, J. R.

“…We have developed conceptual designs of two petawatt-class pulsed-power accelerators: Z 300 and Z 800. The designs are based on an accelerator architecture…”
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Pulsed power indirect drive approach to inertial confinement fusion by Olson, R.E., Leeper, R.J., Batha, S.H., Peterson, R.R., Bradley, P.A., Stygar, W.A., LeChien, K.R., Robey, H.F., Young, C.V., Meezan, N.B.

“…We propose an approach to Inertial Confinement Fusion (ICF) that could potentially lead to high levels of thermonuclear burn in the laboratory. The proposal is…”
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Multichannel and Impedance Analysis of the Laser-Triggered Rimfire Gas Switch by LeChien, K.R., Gahl, J.M.

“…Many pulsed power applications require multichannel switching because of stringent low erosion and low impedance requirements. Rimfire, which is a multigap…”
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Circuit Model for Driving Three-Dimensional Resistive MHD Wire Array Z-Pinch Calculations: SPECIAL ISSUE ON Z-PINCH PLASMAS 2010 by JENNINGS, Chris A, CHITTENDEN, Jeremy P, CUNEO, Michael E, STYGAR, W. A, AMPLEFORD, David J, WAISMAN, E. M, JONES, M, SAVAGE, M. E, LECHIEN, K. R, WAGONER, T. C

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3D electromagnetic and transmissionline models OF A 1-MA linear transformer driver cavity for high-current z pinch accelerators by Miller, C L, Rose, D V, Welch, D R, Madrid, E A, Clark, R E, Mostrom, C B, Stygar, W A, LeChien, K R, Mazarakis, M A, Porter, J L, Woodworth, J R, Kim, A A, Hinshelwood, D D

“…Summary form only given. A three-dimensional, fully electromagnetic (EM) model of the principal pulsed-power components of a new high-current linear…”
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Linear Transformer Drivers (LTD) for high voltage, high current rep-rated systems by Mazarakis, M. G., LeChien, K. R., Fowler, W. E., Long, F. W., Matzen, M. K., McDaniel, D. H., McKee, R., Porter, J. L., Struve, K. W., Stygar, W. A., Woodworth, J. R., Kim, A. A., Sinebryukhov, V. A., Gilgenbach, R. M., Gomez, M. R., French, D. M., Lau, Y. Y., Zier, J., Wakeland, P. E., Ward, K. S.

“…The Linear Transformer Driver (LTD) technology can provide very compact devices that deliver very fast high current and high voltage pulses. The output pulse…”
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High current linear transformer driver (LTD) development at Sandia National Laboratories by Mazarakis, M.G., Fowler, W.E., LeChien, K.R., Porter, J.L., Stygar, W.E., Kim, A.A., Gilgenbach, R.

“…Sandia is actively pursuing the development of new accelerators based on the new technology of the linear transformer driver (LTD). LTD based drivers are…”
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1-MA Linear Transformer Driver (LTD) cavities as building blocks for ICE, ICF, and IFE drivers by Mazarakis, M G, LeChien, K R, Fowler, W E, Long, F W, Matzen, M K, McDaniel, D H, McKee, R, Porter, J L, Starve, K W, Stygar, W A, Woodworth, J R, Kim, A A, Sinebryukhov, V A, Gilgenbach, R M, Gomez, M R, French, D M, Lau, Y Y, Zier, J, Ward, K S, Wakeland, P E

“…Summary form only given. Sandia in collaborations with a number of other institutions, is developing a new paradigm in pulsed power technology: the Linear…”
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Development of an 85KJ stainless steel K-shell X-ray source on the Z generator by Ampleford, D J, Jones, B, Coverdale, C A, Nash, T J, Jones, S C, Jones, M C, Stygar, W A, Savage, M E, LeChien, K R, Jennings, C A, Hansen, S B, Cuneo, M E, Thornhill, J W, Giuliani, J L, Apruzese, J P, Clark, R W, Chong, Y K, Dasgupta, A

“…We will discuss experiments on the Z generator using large diameter stainless steel wire arrays to produce K-shell emission (hv~6.7keV). Large array diameters…”
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