Search Results - "Callahan, D. A."

Record Energetics for an Inertial Fusion Implosion at NIF by Zylstra, A B, Kritcher, A L, Hurricane, O A, Callahan, D A, Baker, K, Braun, T, Casey, D T, Clark, D, Clark, K, Döppner, T, Divol, L, Hinkel, D E, Hohenberger, M, Kong, C, Landen, O L, Nikroo, A, Pak, A, Patel, P, Ralph, J E, Rice, N, Tommasini, R, Schoff, M, Stadermann, M, Strozzi, D, Weber, C, Young, C, Wild, C, Town, R P J, Edwards, M J

“…Inertial confinement fusion seeks to create burning plasma conditions in a spherical capsule implosion, which requires efficiently absorbing the driver energy…”
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High-adiabat high-foot inertial confinement fusion implosion experiments on the national ignition facility by Park, H-S, Hurricane, O A, Callahan, D A, Casey, D T, Dewald, E L, Dittrich, T R, Döppner, T, Hinkel, D E, Berzak Hopkins, L F, Le Pape, S, Ma, T, Patel, P K, Remington, B A, Robey, H F, Salmonson, J D, Kline, J L

“…This Letter reports on a series of high-adiabat implosions of cryogenic layered deuterium-tritium (DT) capsules indirectly driven by a "high-foot" laser drive…”
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Design of a high-foot high-adiabat ICF capsule for the national ignition facility by Dittrich, T R, Hurricane, O A, Callahan, D A, Dewald, E L, Döppner, T, Hinkel, D E, Berzak Hopkins, L F, Le Pape, S, Ma, T, Milovich, J L, Moreno, J C, Patel, P K, Park, H-S, Remington, B A, Salmonson, J D, Kline, J L

“…The National Ignition Campaign's [M. J. Edwards et al., Phys. Plasmas 20, 070501 (2013)] point design implosion has achieved DT neutron yields of 7.5×10(14)…”
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High-Performance Indirect-Drive Cryogenic Implosions at High Adiabat on the National Ignition Facility by Baker, K L, Thomas, C A, Casey, D T, Khan, S, Spears, B K, Nora, R, Woods, T, Milovich, J L, Berger, R L, Strozzi, D, Clark, D, Hohenberger, M, Hurricane, O A, Callahan, D A, Landen, O L, Bachmann, B, Benedetti, R, Bionta, R, Celliers, P M, Fittinghoff, D, Goyon, C, Grim, G, Hatarik, R, Izumi, N, Gatu Johnson, M, Kyrala, G, Ma, T, Millot, M, Nagel, S R, Pak, A, Patel, P K, Turnbull, D, Volegov, P L, Yeamans, C

“…To reach the pressures and densities required for ignition, it may be necessary to develop an approach to design that makes it easier for simulations to guide…”
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Evidence of Three-Dimensional Asymmetries Seeded by High-Density Carbon-Ablator Nonuniformity in Experiments at the National Ignition Facility by Casey, D T, MacGowan, B J, Sater, J D, Zylstra, A B, Landen, O L, Milovich, J, Hurricane, O A, Kritcher, A L, Hohenberger, M, Baker, K, Le Pape, S, Döppner, T, Weber, C, Huang, H, Kong, C, Biener, J, Young, C V, Haan, S, Nora, R C, Ross, S, Robey, H, Stadermann, M, Nikroo, A, Callahan, D A, Bionta, R M, Hahn, K D, Moore, A S, Schlossberg, D, Bruhn, M, Sequoia, K, Rice, N, Farrell, M, Wild, C

“…Inertial confinement fusion implosions must achieve high in-flight shell velocity, sufficient energy coupling between the hot spot and imploding shell, and…”
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Development of Improved Radiation Drive Environment for High Foot Implosions at the National Ignition Facility by Hinkel, D E, Berzak Hopkins, L F, Ma, T, Ralph, J E, Albert, F, Benedetti, L R, Celliers, P M, Döppner, T, Goyon, C S, Izumi, N, Jarrott, L C, Khan, S F, Kline, J L, Kritcher, A L, Kyrala, G A, Nagel, S R, Pak, A E, Patel, P, Rosen, M D, Rygg, J R, Schneider, M B, Turnbull, D P, Yeamans, C B, Callahan, D A, Hurricane, O A

“…Analyses of high foot implosions show that performance is limited by the radiation drive environment, i.e., the hohlraum. Reported here are significant…”
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Tuning the implosion symmetry of ICF targets via controlled crossed-beam energy transfer by Michel, P, Divol, L, Williams, E A, Weber, S, Thomas, C A, Callahan, D A, Haan, S W, Salmonson, J D, Dixit, S, Hinkel, D E, Edwards, M J, Macgowan, B J, Lindl, J D, Glenzer, S H, Suter, L J

“…Radiative hydrodynamics simulations of ignition experiments show that energy transfer between crossing laser beams allows tuning of the implosion symmetry. A…”
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Numerical modeling of the sensitivity of x-ray driven implosions to low-mode flux asymmetries by Scott, R H H, Clark, D S, Bradley, D K, Callahan, D A, Edwards, M J, Haan, S W, Jones, O S, Spears, B K, Marinak, M M, Town, R P J, Norreys, P A, Suter, L J

“…The sensitivity of inertial confinement fusion implosions, of the type performed on the National Ignition Facility (NIF) [1], to low-mode flux asymmetries is…”
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Multistep redirection by cross-beam power transfer of ultrahigh-power lasers in a plasma by Moody, J. D., Michel, P., Divol, L., Berger, R. L., Bond, E., Bradley, D. K., Callahan, D. A., Dewald, E. L., Dixit, S., Edwards, M. J., Glenn, S., Hamza, A., Haynam, C., Hinkel, D. E., Izumi, N., Jones, O., Kilkenny, J. D., Kirkwood, R. K., Kline, J. L., Kruer, W. L., Kyrala, G. A., Landen, O. L., LePape, S., Lindl, J. D., MacGowan, B. J., Meezan, N. B., Nikroo, A., Rosen, M. D., Schneider, M. B., Strozzi, D. J., Suter, L. J., Thomas, C. A., Town, R. P. J., Widmann, K., Williams, E. A., Atherton, L. J., Glenzer, S. H., Moses, E. I.

“…Laser redirection by cross-beam power transfer in a plasma is an important example of a nonlinear optics process which uses laser–plasma instabilities to one’s…”
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Fuel gain exceeding unity in an inertially confined fusion implosion by Hurricane, O. A., Callahan, D. A., Casey, D. T., Celliers, P. M., Cerjan, C., Dewald, E. L., Dittrich, T. R., Döppner, T., Hinkel, D. E., Hopkins, L. F. Berzak, Kline, J. L., Le Pape, S., Ma, T., MacPhee, A. G., Milovich, J. L., Pak, A., Park, H.-S., Patel, P. K., Remington, B. A., Salmonson, J. D., Springer, P. T., Tommasini, R.

“…Fusion fuel gains greater than unity — which are crucial to the generation of fusion energy — are achieved on the US National Ignition Facility using the…”
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Energy Principles of Scientific Breakeven in an Inertial Fusion Experiment by Hurricane, O A, Callahan, D A, Casey, D T, Christopherson, A R, Kritcher, A L, Landen, O L, Maclaren, S A, Nora, R, Patel, P K, Ralph, J, Schlossberg, D, Springer, P T, Young, C V, Zylstra, A B

“…Fusion "scientific breakeven" (i.e., unity target gain G_{target}, total fusion energy out > laser energy input) has been achieved for the first time (here,…”
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Demonstration of High Performance in Layered Deuterium-Tritium Capsule Implosions in Uranium Hohlraums at the National Ignition Facility by Döppner, T, Callahan, D A, Hurricane, O A, Hinkel, D E, Ma, T, Park, H-S, Berzak Hopkins, L F, Casey, D T, Celliers, P, Dewald, E L, Dittrich, T R, Haan, S W, Kritcher, A L, MacPhee, A, Le Pape, S, Pak, A, Patel, P K, Springer, P T, Salmonson, J D, Tommasini, R, Benedetti, L R, Bond, E, Bradley, D K, Caggiano, J, Church, J, Dixit, S, Edgell, D, Edwards, M J, Fittinghoff, D N, Frenje, J, Gatu Johnson, M, Grim, G, Hatarik, R, Havre, M, Herrmann, H, Izumi, N, Khan, S F, Kline, J L, Knauer, J, Kyrala, G A, Landen, O L, Merrill, F E, Moody, J, Moore, A S, Nikroo, A, Ralph, J E, Remington, B A, Robey, H F, Sayre, D, Schneider, M, Streckert, H, Town, R, Turnbull, D, Volegov, P L, Wan, A, Widmann, K, Wilde, C H, Yeamans, C

“…We report on the first layered deuterium-tritium (DT) capsule implosions indirectly driven by a "high-foot" laser pulse that were fielded in depleted uranium…”
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Plasma stopping-power measurements reveal transition from non-degenerate to degenerate plasmas by Hayes, A. C., Gooden, M. E., Henry, E., Jungman, Gerard, Wilhelmy, J. B., Rundberg, R. S., Yeamans, C., Kyrala, G., Cerjan, C., Danielson, D. L., Daligault, Jérôme, Wilburn, C., Volegov, P., Wilde, C., Batha, S., Bredeweg, T., Kline, J. L., Grim, G. P., Hartouni, E. P., Shaughnessy, D., Velsko, C., Cassata, W. S., Moody, K., Berzak Hopkins, L. F., Hinkel, D., Döppner, T., Le Pape, S., Graziani, F., Callahan, D. A., Hurricane, O. A., Schneider, D.

“…Physically realized electron gas systems usually reside in either the quantum non-degenerate or fully degenerate limit, where the average de Broglie wavelength…”
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Hot-spot mix in ignition-scale inertial confinement fusion targets by Regan, S P, Epstein, R, Hammel, B A, Suter, L J, Scott, H A, Barrios, M A, Bradley, D K, Callahan, D A, Cerjan, C, Collins, G W, Dixit, S N, Döppner, T, Edwards, M J, Farley, D R, Fournier, K B, Glenn, S, Glenzer, S H, Golovkin, I E, Haan, S W, Hamza, A, Hicks, D G, Izumi, N, Jones, O S, Kilkenny, J D, Kline, J L, Kyrala, G A, Landen, O L, Ma, T, MacFarlane, J J, MacKinnon, A J, Mancini, R C, McCrory, R L, Meezan, N B, Meyerhofer, D D, Nikroo, A, Park, H-S, Ralph, J, Remington, B A, Sangster, T C, Smalyuk, V A, Springer, P T, Town, R P J

“…Mixing of plastic ablator material, doped with Cu and Ge dopants, deep into the hot spot of ignition-scale inertial confinement fusion implosions by…”
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Symmetric Inertial Confinement Fusion Implosions at Ultra-High Laser Energies by Glenzer, S.H, MacGowan, B.J, Michel, P, Meezan, N.B, Suter, L.J, Dixit, S.N, Kline, J.L, Kyrala, G.A, Bradley, D.K, Callahan, D.A, Dewald, E.L, Divol, L, Dzenitis, E, Edwards, M.J, Hamza, A.V, Haynam, C.A, Hinkel, D.E, Kalantar, D.H, Kilkenny, J.D, Landen, O.L, Lindl, J.D, LePape, S, Moody, J.D, Nikroo, A, Parham, T, Schneider, M.B, Town, R.P.J, Wegner, P, Widmann, K, Whitman, P, Young, B.K.F, Van Wonterghem, B, Atherton, L.J, Moses, E.I

“…Indirect-drive hohlraum experiments at the National Ignition Facility have demonstrated symmetric capsule implosions at unprecedented laser drive energies of…”
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Improved Performance of High Areal Density Indirect Drive Implosions at the National Ignition Facility using a Four-Shock Adiabat Shaped Drive by Casey, D T, Milovich, J L, Smalyuk, V A, Clark, D S, Robey, H F, Pak, A, MacPhee, A G, Baker, K L, Weber, C R, Ma, T, Park, H-S, Döppner, T, Callahan, D A, Haan, S W, Patel, P K, Peterson, J L, Hoover, D, Nikroo, A, Yeamans, C B, Merrill, F E, Volegov, P L, Fittinghoff, D N, Grim, G P, Edwards, M J, Landen, O L, Lafortune, K N, MacGowan, B J, Widmayer, C C, Sayre, D B, Hatarik, R, Bond, E J, Nagel, S R, Benedetti, L R, Izumi, N, Khan, S, Bachmann, B, Spears, B K, Cerjan, C J, Gatu Johnson, M, Frenje, J A

“…Hydrodynamic instabilities can cause capsule defects and other perturbations to grow and degrade implosion performance in ignition experiments at the National…”
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Thin shell, high velocity inertial confinement fusion implosions on the national ignition facility by Ma, T, Hurricane, O A, Callahan, D A, Barrios, M A, Casey, D T, Dewald, E L, Dittrich, T R, Döppner, T, Haan, S W, Hinkel, D E, Berzak Hopkins, L F, Le Pape, S, MacPhee, A G, Pak, A, Park, H-S, Patel, P K, Remington, B A, Robey, H F, Salmonson, J D, Springer, P T, Tommasini, R, Benedetti, L R, Bionta, R, Bond, E, Bradley, D K, Caggiano, J, Celliers, P, Cerjan, C J, Church, J A, Dixit, S, Dylla-Spears, R, Edgell, D, Edwards, M J, Field, J, Fittinghoff, D N, Frenje, J A, Gatu Johnson, M, Grim, G, Guler, N, Hatarik, R, Herrmann, H W, Hsing, W W, Izumi, N, Jones, O S, Khan, S F, Kilkenny, J D, Knauer, J, Kohut, T, Kozioziemski, B, Kritcher, A, Kyrala, G, Landen, O L, MacGowan, B J, Mackinnon, A J, Meezan, N B, Merrill, F E, Moody, J D, Nagel, S R, Nikroo, A, Parham, T, Ralph, J E, Rosen, M D, Rygg, J R, Sater, J, Sayre, D, Schneider, M B, Shaughnessy, D, Spears, B K, Town, R P J, Volegov, P L, Wan, A, Widmann, K, Wilde, C H, Yeamans, C

“…Experiments have recently been conducted at the National Ignition Facility utilizing inertial confinement fusion capsule ablators that are 175 and 165  μm in…”
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Stochastic ion heating from many overlapping laser beams in fusion plasmas by Michel, P, Rozmus, W, Williams, E A, Divol, L, Berger, R L, Town, R P J, Glenzer, S H, Callahan, D A

“…In this Letter, we show through numerical simulations and analytical results that overlapping multiple (N) laser beams in plasmas can lead to strong stochastic…”
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Early-time symmetry tuning in the presence of cross-beam energy transfer in ICF experiments on the National Ignition Facility by Dewald, E L, Milovich, J L, Michel, P, Landen, O L, Kline, J L, Glenn, S, Jones, O, Kalantar, D H, Pak, A, Robey, H F, Kyrala, G A, Divol, L, Benedetti, L R, Holder, J, Widmann, K, Moore, A, Schneider, M B, Döppner, T, Tommasini, R, Bradley, D K, Bell, P, Ehrlich, B, Thomas, C A, Shaw, M, Widmayer, C, Callahan, D A, Meezan, N B, Town, R P J, Hamza, A, Dzenitis, B, Nikroo, A, Moreno, K, Van Wonterghem, B, Mackinnon, A J, Glenzer, S H, MacGowan, B J, Kilkenny, J D, Edwards, M J, Atherton, L J, Moses, E I

“…On the National Ignition Facility, the hohlraum-driven implosion symmetry is tuned using cross-beam energy transfer (CBET) during peak power, which is…”
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Direct measurement of energetic electrons coupling to an imploding low-adiabat inertial confinement fusion capsule by Döppner, T, Thomas, C A, Divol, L, Dewald, E L, Celliers, P M, Bradley, D K, Callahan, D A, Dixit, S N, Harte, J A, Glenn, S M, Haan, S W, Izumi, N, Kyrala, G A, LaCaille, G, Kline, J K, Kruer, W L, Ma, T, MacKinnon, A J, McNaney, J M, Meezan, N B, Robey, H F, Salmonson, J D, Suter, L J, Zimmerman, G B, Edwards, M J, MacGowan, B J, Kilkenny, J D, Lindl, J D, Van Wonterghem, B M, Atherton, L J, Moses, E I, Glenzer, S H, Landen, O L

“…We have imaged hard x-ray (>100 keV) bremsstrahlung emission from energetic electrons slowing in a plastic ablator shell during indirectly driven implosions at…”
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