Search Results - "Leeper, R. J"

First Liquid Layer Inertial Confinement Fusion Implosions at the National Ignition Facility by Olson, R E, Leeper, R J, Kline, J L, Zylstra, A B, Yi, S A, Biener, J, Braun, T, Kozioziemski, B J, Sater, J D, Bradley, P A, Peterson, R R, Haines, B M, Yin, L, Berzak Hopkins, L F, Meezan, N B, Walters, C, Biener, M M, Kong, C, Crippen, J W, Kyrala, G A, Shah, R C, Herrmann, H W, Wilson, D C, Hamza, A V, Nikroo, A, Batha, S H

“…The first cryogenic deuterium and deuterium-tritium liquid layer implosions at the National Ignition Facility (NIF) demonstrate D_{2} and DT layer inertial…”
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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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Production of thermonuclear neutrons from deuterium-filled capsule implosions driven by Z-pinch dynamic hohlraums by RUIZ, C. L, COOPER, G. W, FRANKLIN, J, ZIEGLER, L, SLUTZ, S. A, BAILEY, J. E, CHANDLER, G. A, NASH, T. J, MEHLHORN, T. A, LEEPER, R. J, FEHL, D, NELSON, A. J

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Preheat effects on shock propagation in indirect-drive inertial confinement fusion ablator materials by Olson, R E, Leeper, R J, Nobile, A, Oertel, J A

“…The velocities and temperatures of shock waves generated by laser-driven hohlraum radiation fields have been measured for several indirect-drive inertial…”
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Hot dense capsule-implosion cores produced by Z-pinch dynamic Hohlraum radiation by Bailey, J E, Chandler, G A, Slutz, S A, Golovkin, I, Lake, P W, MacFarlane, J J, Mancini, R C, Burris-Mog, T J, Cooper, G, Leeper, R J, Mehlhorn, T A, Moore, T C, Nash, T J, Nielsen, D S, Ruiz, C L, Schroen, D G, Varnum, W A

“…Hot dense capsule implosions driven by Z-pinch x rays have been measured using a approximately 220 eV dynamic Hohlraum to implode 1.7-2.1 mm diameter…”
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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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Preparations for a European R&D roadmap for an inertial fusion demo reactor by Norreys, P A, Ceurvorst, L, Sadler, J D, Spiers, B T, Aboushelbaya, R, Mayr, M W, Paddock, R, Ratan, N, Savin, A F, Wang, R H W, Glize, K, Trines, R M G M, Bingham, R, Hill, M P, Sircombe, N, Ramsay, M, Allan, P, Hobbs, L, James, S, Skidmore, J, Fyrth, J, Luis, J, Floyd, E, Brown, C, Haines, B M, Olson, R E, Yi, S A, Zylstra, A B, Flippo, K, Bradley, P A, Peterson, R R, Kline, J L, Leeper, R J

“…A European consortium of 15 laboratories across nine nations have worked together under the EUROFusion Enabling Research grants for the past decade with three…”
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Fully kinetic particle-in-cell simulations of a deuterium gas puff z pinch by Welch, D R, Rose, D V, Clark, R E, Mostrom, C B, Stygar, W A, Leeper, R J

“…We present the first fully kinetic, collisional, and electromagnetic simulations of the complete time evolution of a deuterium gas puff z pinch. Recent…”
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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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Insecticide resistance: challenge to pest management and basic research by Brattsten, L.B, Holyoke, C.W. Jr, Leeper, J.R, Raffa, K.F

“…The agricultural use of synthetic insecticides usually protects crops but imposes strong selection pressures that can result in the development of resistance…”
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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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Characterizing the uniformity of polystyrene and TPX z-pinch fusion targets by nuclear microscopy by Antolak, A.J, Morse, D.H, Hebron, D.E, Leeper, R.J, Schroen-Carey, D

“…Fusion research at Sandia’s z-pinch accelerator has produced an X-ray radiation source with a confirmed equivalent black body temperature of 1.8 000 000°C and…”
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Crystal spectroscopy of silicon aero-gel end-caps driven by a dynamic hohlraum on Z by Nash, T.J., Sanford, T.W.L., Mock, R.C., Leeper, R.J., Chandler, G.A., Bailey, J.E., McKenney, J.L., Mehlhorn, T.A., Seaman, J.F., McGurn, J., Schroen, D., Russell, C., Lake, P.E., Jobe, D.O., Gilliland, T., Nielsen, D.S., Lucas, J., Moore, T., Torres, J.A., MacFarlane, J.J., Apruzese, J.P., Chrien, R., Idzorek, G., Peterson, D.L., Watt, R.

“…We present results from crystal spectroscopic analysis of silicon aero-gel foams heated by dynamic hohlraums on Z. The dynamic hohlraum on Z creates a…”
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Wire initiation critical for radiation symmetry in z-pinch-driven dynamic hohlraums by Sanford, T W L, Jennings, C A, Rochau, G A, Rosenthal, S E, Sarkisov, G S, Sasorov, P V, Stygar, W A, Bennett, L F, Bliss, D E, Chittenden, J P, Cuneo, M E, Haines, M G, Leeper, R J, Mock, R C, Nash, T J, Peterson, D L

“…Axial symmetry in x-ray radiation of wire-array z pinches is important for the creation of dynamic hohlraums used to compress inertial-confinement-fusion…”
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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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On the absolute calibration of a DT fusion neutron yield diagnostic by Ruiz, C.L., Leeper, R.J., Cooper, G.W., Chandler, G.A., Cox, C.M., Doyle, B.L., Fehl, D.L., Hahn, K.D., McWatters, B.R., Nelson, A.J., Smelser, R.M., Snow, C.S., Torres, J.A., Bleuel, D.L., Kilkenney, J.D.

“…Recent advances in Inertial Confinement Fusion (ICF) experiments at Lawrence Livermore National Laboratory's National Ignition Facility (NIF) have underscored…”
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Absolute measurement of the DT primary neutron yield on the National Ignition Facility by Leeper, R.J., Bleuel, D.L., Frenje, J.A., Eckart, M.J., Hartouni, E., Kilkenny, J.D., Casey, D.T., Chandler, G.A., Cooper, G.W., Glebov, V.Yu, Hagmann, C., Johnson, M.Gatu, Knauer, J.P., Knittel, K.M., Linden-Levy, L.A., Padalino, S.J., Petrasso, R.D., Ruiz, C.L., Sangster, T.C., Seguin, F.H.

“…The measurement of the absolute neutron yield produced in inertial confinement fusion target experiments conducted on the National Ignition Facility (NIF) is…”
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Z -Pinch-Generated X Rays Demonstrate Potential for Indirect-Drive ICF Experiments by Sanford, T. W. L., Olson, R. E., Bowers, R. L., Chandler, G. A., Derzon, M. S., Hebron, D. E., Leeper, R. J., Mock, R. C., Nash, T. J., Peterson, D. L., Ruggles, L. E., Simpson, W. W., Struve, K. W., Vesey, R. A.

“…Hohlraums measuring 6 mm in diameter by 7 mm in height have been heated by x rays from a Z pinch. Over the measured x-ray input powers P of 0.7 to 13 TW, the…”
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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…”
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Analytic models of high-temperature hohlraums by Stygar, W A, Olson, R E, Spielman, R B, Leeper, R J

“…A unified set of high-temperature-hohlraum models has been developed. For a simple hohlraum,…”
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