Search Results - "T. C. Wagoner"

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…”
Get full text

Differential-output B -dot and D -dot monitors for current and voltage measurements on a 20-MA, 3-MV pulsed-power accelerator by Wagoner, T. C., Stygar, W. A., Ives, H. C., Gilliland, T. L., Spielman, R. B., Johnson, M. F., Reynolds, P. G., Moore, J. K., Mourning, R. L., Fehl, D. L., Androlewicz, K. E., Bailey, J. E., Broyles, R. S., Dinwoodie, T. A., Donovan, G. L., Dudley, M. E., Hahn, K. D., Kim, A. A., Lee, J. R., Leeper, R. J., Leifeste, G. T., Melville, J. A., Mills, J. A., Mix, L. P., Moore, W. B. S., Peyton, B. P., Porter, J. L., Rochau, G. A., Rochau, G. E., Savage, M. E., Seamen, J. F., Serrano, J. D., Sharpe, A. W., Shoup, R. W., Slopek, J. S., Speas, C. S., Struve, K. W., Van De Valde, D. M., Woodring, R. M.

“…We have developed a system of differential-output monitors that diagnose current and voltage in the vacuum section of a 20-MA 3-MV pulsed-power accelerator…”
Get full text

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…”
Get full text

Water-dielectric-breakdown relation for the design of large-area multimegavolt pulsed-power systems by Stygar, W. A., Wagoner, T. C., Ives, H. C., Wallace, Z. R., Anaya, V., Corley, J. P., Cuneo, M. E., Harjes, H. C., Lott, J. A., Mowrer, G. R., Puetz, E. A., Thompson, T. A., Tripp, S. E., VanDevender, J. P., Woodworth, J. R.

“…We have developed an empirical electrical-breakdown relation that can be used to design large-area water-insulated pulsed-power systems. Such systems often…”
Get full text

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…”
Get full text

Analytic model of a magnetically insulated transmission line with collisional flow electrons by Stygar, W. A., Wagoner, T. C., Ives, H. C., Corcoran, P. A., Cuneo, M. E., Douglas, J. W., Gilliland, T. L., Mazarakis, M. G., Ramirez, J. J., Seamen, J. F., Seidel, D. B., Spielman, R. B.

“…We have developed a relativistic-fluid model of the flow-electron plasma in a steady-state one-dimensional magnetically insulated transmission line (MITL). The…”
Get full text

Energy loss to conductors operated at lineal current densities ≤ 10     MA / cm : Semianalytic model, magnetohydrodynamic simulations, and experiment by Stygar, W. A., Rosenthal, S. E., Ives, H. C., Wagoner, T. C., Allshouse, G. O., Androlewicz, K. E., Donovan, G. L., Fehl, D. L., Frese, M. H., Gilliland, T. L., Johnson, M. F., Mills, J. A., Reisman, D. B., Reynolds, P. G., Speas, C. S., Spielman, R. B., Struve, K. W., Toor, A., Waisman, E. M.

“…We have developed a semianalytic expression for the total energy loss to a vacuum transmission-line electrode operated at high lineal current densities. (We…”
Get full text

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…”
Get full text

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…”
Get full text

Improved design of a high-voltage vacuum-insulator interface by Stygar, W. A., Lott, J. A., Wagoner, T. C., Anaya, V., Harjes, H. C., Ives, H. C., Wallace, Z. R., Mowrer, G. R., Shoup, R. W., Corley, J. P., Anderson, R. A., Vogtlin, G. E., Savage, M. E., Elizondo, J. M., Stoltzfus, B. S., Andercyk, D. M., Fehl, D. L., Jaramillo, T. F., Johnson, D. L., McDaniel, D. H., Muirhead, D. A., Radman, J. M., Ramirez, J. J., Ramirez, L. E., Spielman, R. B., Struve, K. W., Walsh, D. E., Walsh, E. D., Walsh, M. D.

“…We have conducted a series of experiments designed to measure the flashover strength of various azimuthally symmetric 45° vacuum-insulator configurations. The…”
Get full text

Measurement of the energy and power radiated by a pulsed blackbody x-ray source by Ives, H. C., Stygar, W. A., Fehl, D. L., Ramirez, L. E., Dropinski, S. C., Wall, D. L., Anctil, J. S., McGurn, J. S., Pyle, J. H., Hanson, D. L., Allison, B. N., Berninger, M. J., Bryce, E. A., Chandler, G. A., Cuneo, M. E., Fox, A. J., Gilliland, T. L., Haslett, C. L., Leeper, R. J., Lewis, D. F., Lucero, M. A., Mazarakis, M. G., McDaniel, D. H., McKenney, J. L., Mills, J. A., Mix, L. P., Porter, J. L., Ritchey, M. B., Ruggles, L. E., Seamen, J. F., Simpson, W. W., Spielman, R. B., Torres, J. A., Vargas, M. F., Wagoner, T. C., Warne, L. K., York, M. W.

“…We have developed a diagnostic system that measures the spectrally integrated (i.e. the total) energy and power radiated by a pulsed blackbody x-ray source…”
Get full text

Characteristics and scaling of tungsten-wire-array z -pinch implosion dynamics at 20 MA by Cuneo, M E, Waisman, E M, Lebedev, S V, Chittenden, J P, Stygar, W A, Chandler, G A, Vesey, R A, Yu, E P, Nash, T J, Bliss, D E, Sarkisov, G S, Wagoner, T C, Bennett, G R, Sinars, D B, Porter, J L, Simpson, W W, Ruggles, L E, Wenger, D F, Garasi, C J, Oliver, B V, Aragon, R A, Fowler, W E, Hettrick, M C, Idzorek, G C, Johnson, D, Keller, K, Lazier, S E, McGurn, J S, Mehlhorn, T A, Moore, T, Nielsen, D S, Pyle, J, Speas, S, Struve, K W, Torres, J A

“…We present observations for 20-MA wire-array z pinches of an extended wire ablation period of 57%+/-3% of the stagnation time of the array and non-thin-shell…”
Get full text

Flashover of a vacuum-insulator interface: A statistical model by Stygar, W. A., Ives, H. C., Wagoner, T. C., Lott, J. A., Anaya, V., Harjes, H. C., Corley, J. P., Shoup, R. W., Fehl, D. L., Mowrer, G. R., Wallace, Z. R., Anderson, R. A., Boyes, J. D., Douglas, J. W., Horry, M. L., Jaramillo, T. F., Johnson, D. L., Long, F. W., Martin, T. H., McDaniel, D. H., Milton, O., Mostrom, M. A., Muirhead, D. A., Mulville, T. D., Ramirez, J. J., Ramirez, L. E., Romero, T. M., Seamen, J. F., Smith, J. W., Speas, C. S., Spielman, R. B., Struve, K. W., Vogtlin, G. E., Walsh, D. E., Walsh, E. D., Walsh, M. D., Yamamoto, O.

“…We have developed a statistical model for the flashover of a 45° vacuum-insulator interface (such as would be found in an accelerator) subject to a pulsed…”
Get full text

10^{7}-A load-current B-dot monitor: Simulations, design, and performance by D. V. Rose, D. R. Welch, C. L. Miller, R. E. Clark, E. A. Madrid, C. B. Mostrom, T. C. Wagoner, J. K. Moore, W. A. Stygar, J. E. Bailey, T. J. Nash, G. A. Rochau, D. B. Sinars

“…A B-dot monitor that measures the current 6 cm from the axis of dynamic loads fielded on 10^{7}-A multiterawatt pulsed-power accelerators has been developed…”
Get full text

Theoretical z -pinch scaling relations for thermonuclear-fusion experiments by Stygar, W A, Cuneo, M E, Vesey, R A, Ives, H C, Mazarakis, M G, Chandler, G A, Fehl, D L, Leeper, R J, Matzen, M K, McDaniel, D H, McGurn, J S, McKenney, J L, Muron, D J, Olson, C L, Porter, J L, Ramirez, J J, Seamen, J F, Speas, C S, Spielman, R B, Struve, K W, Torres, J A, Waisman, E M, Wagoner, T C, Gilliland, T L

“…We have developed wire-array z -pinch scaling relations for plasma-physics and inertial-confinement-fusion (ICF) experiments. The relations can be applied to…”
Get full text

X-ray emission from z pinches at 10 7 A: current scaling, gap closure, and shot-to-shot fluctuations by Stygar, W A, Ives, H C, Fehl, D L, Cuneo, M E, Mazarakis, M G, Bailey, J E, Bennett, G R, Bliss, D E, Chandler, G A, Leeper, R J, Matzen, M K, McDaniel, D H, McGurn, J S, McKenney, J L, Mix, L P, Muron, D J, Porter, J L, Ramirez, J J, Ruggles, L E, Seamen, J F, Simpson, W W, Speas, C S, Spielman, R B, Struve, K W, Torres, J A, Vesey, R A, Wagoner, T C, Gilliland, T L, Horry, M L, Jobe, D O, Lazier, S E, Mills, J A, Mulville, T D, Pyle, J H, Romero, T M, Seamen, J J, Smelser, R M

“…We have measured the x-ray power and energy radiated by a tungsten-wire-array z pinch as a function of the peak pinch current and the width of the…”
Get full text

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

Get full text

Z machine circuit model development by Hutsel, B. T., Davis, J.-P, Campbell, R. B., Fowler, W. E., Hanshaw, H. L., Jennings, C., Jones, M., Lemke, R. W., Long, F. W., Lopez, M. R., McKee, G. R., Moore, J. K., Porter, J. L., Savage, M. E., Sceiford, M. E., Stygar, W. A., Corcoran, P. A., Whitney, B. A., Camacho, A. R., Hinshelwood, D., Wagoner, T. C.

“…The transmission line circuit model of the Z machine is used extensively to aid in the design and analysis of experiments conducted on Z. The circuit model…”
Get full text

Circuit-Code Modeling of the Refurbished Z Accelerator: Comparison of Measurements with Predictions by Struve, K.W., Bennett, L.F., Chavez, T.F., Davis, J.P., Harjes, H.C., Pasik, M., Savage, M.E., Smith, D.L., Stygar, W.A., Wagoner, T.C.

“…With the successful completion of its refurbishment the Z machine at Sandia is now routinely operating with currents over 26 MA into various loads. Now that…”
Get full text

An Overview of Pulse Compression and Power Flow in the Upgraded Z Pulsed Power Driver by Savage, M. E., Bennett, L. F., Bliss, D. E., Clark, W. T., Coats, R. S., Elizondo, J. M., LeChien, K. R., Harjes, H. C., Lehr, J. M., Maenchen, J. E., McDaniel, D. H., Pasik, M. F., Pointon, T. D., Owen, A. C., Seidel, D. B., Smith, D. L., Stoltzfus, B. S., Struve, K. W., Warne, L.K., Woodworth, J. R., Mendel, C. W., Prestwich, K.R., Shoup, R. W., Johnson, D. L., Corley, J. P., Hodge, K. C., Wagoner, T. C, Wakeland, P. E.

“…Summary form only given. The Z pulsed power driver at Sandia National Laboratories is used to develop high energy density Z-pinch X-ray sources for inertial…”
Get full text