Search Results - "Speas, S"

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…”
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Magnetic Field Effects on the Vishniac Overstability in Scaled Radiative Blast Waves by Riley, N. J., Quevedo, H. J., Bengtson, Roger D., Ditmire, T., Kimmel, M., Speas, C. S., Porter, J. L.

“…We report experimental results on the stability of a magnetized laser-launched blast wave scaled to simulate a late-stage supernova remnant. We extend previous…”
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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…”
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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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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…”
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Increased preheat energy to MagLIF targets with cryogenic cooling by Harvey-Thompson, A. J., Geissel, M., Crabtree, J. A., Weis, M. R., Gomez, M. R., Fein, J. R., Ampleford, D. J., Awe, T. J., Chandler, G. A., Galloway, B. R., Hansen, S. B., Hanson, J., Harding, E. C., Jennings, C. A., Kimmel, M., Knapp, P. F., Lamppa, D. C., Lewis, W. E., Mangan, M. A., Maurer, A., Perea, L., Peterson, K. J., Porter, J. L., Rambo, P. K., Robertson, G. K., Rochau, G. A., Ruiz, D. E., Shores, J. E., Slutz, S. A., Smith, I. C., Speas, C. S., Yager-Elorriaga, D. A., York, A., Paguio, R. R., Smith, G. E.

“…The performance of Magnetized Liner Inertial Fusion (MagLIF) experiments is sensitive to the amount of laser energy coupled to the fuel during the preheat…”
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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…”
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Spatially resolved measurements of load current delivery on a 14 MA, 100 ns pulsed power experiment using a line-imaging velocity interferometer by Myers, Clayton E., Bliss, David E., Celliers, Peter M., Datte, Philip S., Hess, Mark H., Jennings, Christopher A., Jones, Michael C., Ampleford, David J., Aragon, Carlos R., Austin, Kevin N., Avila, Thomas G., Awe, Thomas J., Baker, Jacob L., Bettencourt, Ron, Bliss, Erlan, Bowers, Mark W., Butler, Neil, Celeste, John R., Clancy, Todd J., Cohen, Simon J., Cortez, Levi J., Crosley, Michael K., Edwards, John, Ellison, C. Leland, Emig, Jim, Erskine, David J., Farmer, William A., Fein, Jeffrey R., Fratanduono, Dayne E., Frieders, Gene, Galbraith, Justin D., Georgeson, Jeffrey K., Gluth, Jeffry W., Gomez, Matthew R., Hammer, James H., Harmon, Roger L., Hernandez, Jose, Jackson, John, Johnson, Drew W., Jones, Brent, Knapp, Patrick F., Koen, Don, Larson, Doug, LeChien, Keith R., Lowinske, Michael C., Lusk, Jeremy, MacRunnels, Keven A., Martinez, Angel N., Massey, Warren, Matzen, M. Keith, Maurer, Andrew J., McCarville, Tom, McDonald, Robert, McLean, Harry S., Mills, Jerry A., Molina, Leo P., Montoya, Michael M., Natoni, Gregory, Olson, Matthew I. T., Porwitzky, Andrew J., Raman, Kumar S., Robertson, Grafton K., Rochau, Gregory A., Rodriguez, Samuel, Scharberg, Rodney D., Scoglietti, Daniel J., Scoglietti, Edward, Shelton, Raymond, Shores, Jonathon E., Sinars, Daniel B., Speas, Christopher S., Speas, Robert J., Spencer, Decker C., Springer, Paul T., Vergel de Dios, Eugene, Wemple, Nathan R., Winters, Scott E., Wong, J. Nan, York, Adam J.

“…Pulsed power generators create high-energy-density conditions by rapidly delivering an immense pulse of electrical current to a compact imploding load…”
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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…”
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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…”
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PPPS-2013: Optimization of x-ray backlighting for experiments on Z by Geissel, M., Cox, C., Schollmeier, M., Shores, J. E., Smith, I. C., Speas, C. S., Porter, J. L.

“…Summary form only given. Sandia National Laboratories' Z-Backlighter Facility is using a laser driven monochromatic X-ray crystal imaging concept at the…”
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Optimization of X-ray backlighting for experiments on Z by Geissel, M., Cox, C., Schollmeier, M., Shores, J. E., Smith, I. C., Speas, C. S., Porter, J. L.

“…Sandia National Laboratories' Z-Backlighter laser facility is using a laser driven monochromatic X-ray crystal imaging concept at the manganese He-alpha energy…”
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THE ADOPTEE'S RIGHT OF ACCESS TO SEALED ADOPTION RECORDS IN NORTH CAROLINA by Speas, Michael S

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