Search Results - "STYGAR, W. A"

Understanding fuel magnetization and mix using secondary nuclear reactions in magneto-inertial fusion by Schmit, P F, Knapp, P F, Hansen, S B, Gomez, M R, Hahn, K D, Sinars, D B, Peterson, K J, Slutz, S A, Sefkow, A B, Awe, T J, Harding, E, Jennings, C A, Chandler, G A, Cooper, G W, Cuneo, M E, Geissel, M, Harvey-Thompson, A J, Herrmann, M C, Hess, M H, Johns, O, Lamppa, D C, Martin, M R, McBride, R D, Porter, J L, Robertson, G K, Rochau, G A, Rovang, D C, Ruiz, C L, Savage, M E, Smith, I C, Stygar, W A, Vesey, R A

“…Magnetizing the fuel in inertial confinement fusion relaxes ignition requirements by reducing thermal conductivity and changing the physics of burn product…”
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Experimental study of current loss and plasma formation in the Z machine post-hole convolute by Gomez, M. R., Gilgenbach, R. M., Cuneo, M. E., Jennings, C. A., McBride, R. D., Waisman, E. M., Hutsel, B. T., Stygar, W. A., Rose, D. V., Maron, Y.

“…The Z pulsed-power generator at Sandia National Laboratories drives high energy density physics experiments with load currents of up to 26 MA. Z utilizes a…”
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Development and tests of fast 1-MA linear transformer driver stages by Kim, A. A., Mazarakis, M. G., Sinebryukhov, V. A., Kovalchuk, B. M., Visir, V. A., Volkov, S. N., Bayol, F., Bastrikov, A. N., Durakov, V. G., Frolov, S. V., Alexeenko, V. M., McDaniel, D. H., Fowler, W. E., LeChien, K., Olson, C., Stygar, W. A., Struve, K. W., Porter, J., Gilgenbach, R. M.

“…In this article we present the design and test results of the most powerful, fast linear transformer driver (LTD) stage developed to date. This 1-MA LTD stage…”
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Pulsed power accelerator for material physics experiments by Reisman, D. B., Stoltzfus, B. S., Stygar, W. A., Austin, K. N., Waisman, E. M., Hickman, R. J., Davis, J.-P., Haill, T. A., Knudson, M. D., Seagle, C. T., Brown, J. L., Goerz, D. A., Spielman, R. B., Goldlust, J. A., Cravey, W. R.

“…We have developed the design of Thor: a pulsed power accelerator that delivers a precisely shaped current pulse with a peak value as high as 7 MA to a…”
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Architecture of petawatt-class z -pinch accelerators by Stygar, W. A., Cuneo, M. E., Headley, D. I., Ives, H. C., Leeper, R. J., Mazarakis, M. G., Olson, C. L., Porter, J. L., Wagoner, T. C., Woodworth, J. R.

“…We have developed an accelerator architecture that can serve as the basis of the design of petawatt-class z-pinch drivers. The architecture has been applied to…”
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Computational analysis of current-loss mechanisms in a post-hole convolute driven by magnetically insulated transmission lines by Rose, D. V., Madrid, E. A., Welch, D. R., Clark, R. E., Mostrom, C. B., Stygar, W. A., Cuneo, M. E.

“…Numerical simulations of a vacuum post-hole convolute driven by magnetically insulated vacuum transmission lines (MITLs) are used to study current losses due…”
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Three-dimensional time-domain particle-in-cell calculations of impedances and centroid deflections in a linear-accelerator cell by Thoma, C., Welch, D. R., Russell, A. M., Clark, R. E., Rose, D. V., Stygar, W. A., Kelsall, B. J.

“…In linear induction accelerators, high-brightness electron beams are accelerated by voltages applied at gaps at discrete locations along the accelerator. At…”
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Transmission-line-circuit model of an 85-TW, 25-MA pulsed-power accelerator by Hutsel, B. T., Corcoran, P. A., Cuneo, M. E., Gomez, M. R., Hess, M. H., Hinshelwood, D. D., Jennings, C. A., Laity, G. R., Lamppa, D. C., McBride, R. D., Moore, J. K., Myers, A., Rose, D. V., Slutz, S. A., Stygar, W. A., Waisman, E. M., Welch, D. R., Whitney, B. A.

“…We have developed a physics-based transmission-line-circuit model of the Z pulsed-power accelerator. The 33-m-diameter Z machine generates a peak electrical…”
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Low-inductance gas switches for linear transformer drivers by Woodworth, J. R., Alexander, J. A., Gruner, F. R., Stygar, W. A., Harden, M. J., Blickem, J. R., Dension, G. J., White, F. E., Lucero, L. M., Anderson, H. D., Bennett, L. F., Glover, S. F., Van DeValde, D., Mazarakis, M. G.

“…We are investigating several alternate gas-switch designs for use in linear transformer drivers. To meet linear-transformer-driver (LTD) requirements, these…”
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100 GW linear transformer driver cavity: Design, simulations, and performance by Douglass, J. D., Hutsel, B. T., Leckbee, J. J., Mulville, T. D., Stoltzfus, B. S., Wisher, M. L., Savage, M. E., Stygar, W. A., Breden, E. W., Calhoun, J. D., Cuneo, M. E., De Smet, D. J., Focia, R. J., Hohlfelder, R. J., Jaramillo, D. M., Johns, O. M., Jones, M. C., Lombrozo, A. C., Lucero, D. J., Moore, J. K., Porter, J. L., Radovich, S. D., Romero, S. A., Sceiford, M. E., Sullivan, M. A., Walker, C. A., Woodworth, J. R., Yazzie, N. T., Abdalla, M. D., Skipper, M. C., Wagner, C.

“…Herein we present details of the design, simulation, and performance of a 100-GW linear transformer driver (LTD) cavity at Sandia National Laboratories. The…”
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New low inductance gas switches for linear transformer drivers by Woodworth, J. R., Stygar, W. A., Bennett, L. F., Mazarakis, M. G., Anderson, H. D., Harden, M. J., Blickem, J. R., Gruner, F. R., White, R.

“…We have developed two new gas switches that are designed to be used with linear transformer drivers. The switches, which can be DC charged to 200 kV and…”
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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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Compact 810 kA linear transformer driver cavity by Woodworth, J. R., Fowler, W. E., Stoltzfus, B. S., Stygar, W. A., Sceiford, M. E., Mazarakis, M. G., Anderson, H. D., Harden, M. J., Blickem, J. R., White, R., Kim, A. A.

“…We are performing experiments with a 92-kV, 810-kA, 74.6-GW linear transformer driver (LTD) cavity. This cavity generates a ∼100  ns power pulse from…”
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High-Current Linear Transformer Driver Development at Sandia National Laboratories by Mazarakis, Michael G, Fowler, William E, LeChien, K L, Long, Finis W, Matzen, M Keith, McDaniel, D H, McKee, R G, Olson, C L, Porter, J L, Rogowski, S T, Struve, Kenneth W, Stygar, W A, Woodworth, Joe R, Kim, Alexander A, Sinebryukhov, Vadim A, Gilgenbach, Ronald M, Gomez, M R, French, D M, Lau, Y Y, Zier, Jacob C, VanDevalde, D M, Sharpe, R A, Ward, K

“…Most of the modern high-current high-voltage pulsed power generators require several stages of pulse conditioning (pulse forming) to convert the…”
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Energy loss due to eddy current in linear transformer driver cores by Kim, A. A., Mazarakis, M. G., Manylov, V. I., Vizir, V. A., Stygar, W. A.

“…In linear transformer drivers [Phys. Rev. ST Accel. Beams 12, 050402 (2009)PRABFM1098-440210.1103/PhysRevSTAB.12.050402; Phys. Rev. ST Accel. Beams 12, 050401…”
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Voltage measurements at the vacuum post-hole convolute of the Z pulsed-power accelerator by Waisman, E. M., McBride, R. D., Cuneo, M. E., Wenger, D. F., Fowler, W. E., Johnson, W. A., Basilio, L. I., Coats, R. S., Jennings, C. A., Sinars, D. B., Vesey, R. A., Jones, B., Ampleford, D. J., Lemke, R. W., Martin, M. R., Schrafel, P. C., Lewis, S. A., Moore, J. K., Savage, M. E., Stygar, W. A.

“…Presented are voltage measurements taken near the load region on the Z pulsed-power accelerator using an inductive voltage monitor (IVM). Specifically, the IVM…”
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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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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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55-TW magnetically insulated transmission-line system: Design, simulations, and performance by Stygar, W. A., Corcoran, P. A., Ives, H. C., Spielman, R. B., Douglas, J. W., Whitney, B. A., Mostrom, M. A., Wagoner, T. C., Speas, C. S., Gilliland, T. L., Allshouse, G. A., Clark, R. E., Donovan, G. L., Hughes, T. P., Humphreys, D. R., Jaramillo, D. M., Johnson, M. F., Kellogg, J. W., Leeper, R. J., Long, F. W., Martin, T. H., Mulville, T. D., Pelock, M. D., Peyton, B. P., Poukey, J. W., Ramirez, J. J., Reynolds, P. G., Seamen, J. F., Seidel, D. B., Seth, A. P., Sharpe, A. W., Shoup, R. W., Smith, J. W., Van De Valde, D. M., Wavrik, R. W.

“…We describe herein a system of self-magnetically insulated vacuum transmission lines (MITLs) that operated successfully at 20 MA, 3 MV, and 55 TW. The system…”
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Square pulse linear transformer driver by Kim, A. A., Mazarakis, M. G., Sinebryukhov, V. A., Volkov, S. N., Kondratiev, S. S., Alexeenko, V. M., Bayol, F., Demol, G., Stygar, W. A.

“…The linear transformer driver (LTD) technological approach can result in relatively compact devices that can deliver fast, high current, and high-voltage…”
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