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1. Demonstration of hot-spot fuel gain exceeding unity in direct-drive inertial confinement fusion implosions

Author

Williams, C. A., Betti, R., Gopalaswamy, V., Knauer, J. P., Forrest, C. J., Lees, A., Ejaz, R., Farmakis, P. S., Cao, D., Radha, P. B., Anderson, K. S., Regan, S. P., Glebov, V. Yu, Shah, R. C., Stoeckl, C., Ivancic, S., Churnetski, K., Janezic, R. T., Fella, C., Rosenberg, M. J., Bonino, M. J., Harding, D. R., Shmayda, W. T., Carroll-Nellenback, J., Hu, S. X., Epstein, R., Collins, T. J. B., Thomas, C. A., Igumenshchev, I. V., Goncharov, V. N., Theobald, W., Woo, K. M., Marozas, J. A., Bauer, K. A., Sampat, S., Waxer, L. J., Turnbull, D., Heuer, P. V., McClow, H., Ceurvorst, L., Scullin, W., Edgell, D. H., Koch, M., Bredesen, D., Johnson, M. Gatu, Frenje, J. A., Petrasso, R. D., Shuldberg, C., Farrell, M., Murray, J., Guzman, D., Serrato, B., Morse, S. F. B., Labuzeta, M., Deeney, C., and Campbell, E. M.

Published
2024
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2. Demonstration of a hydrodynamically equivalent burning plasma in direct-drive inertial confinement fusion

Author

Gopalaswamy, V., Williams, C. A., Betti, R., Patel, D., Knauer, J. P., Lees, A., Cao, D., Campbell, E. M., Farmakis, P., Ejaz, R., Anderson, K. S., Epstein, R., Carroll-Nellenbeck, J., Igumenshchev, I. V., Marozas, J. A., Radha, P. B., Solodov, A. A., Thomas, C. A., Woo, K. M., Collins, T. J. B., Hu, S. X., Scullin, W., Turnbull, D., Goncharov, V. N., Churnetski, K., Forrest, C. J., Glebov, V. Yu., Heuer, P. V., McClow, H., Shah, R. C., Stoeckl, C., Theobald, W., Edgell, D. H., Ivancic, S., Rosenberg, M. J., Regan, S. P., Bredesen, D., Fella, C., Koch, M., Janezic, R. T., Bonino, M. J., Harding, D. R., Bauer, K. A., Sampat, S., Waxer, L. J., Labuzeta, M., Morse, S. F. B., Gatu-Johnson, M., Petrasso, R. D., Frenje, J. A., Murray, J., Serrato, B., Guzman, D., Shuldberg, C., Farrell, M., and Deeney, C.

Published
2024
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3. Publisher Correction: Demonstration of a hydrodynamically equivalent burning plasma in direct-drive inertial confinement fusion

Author

Gopalaswamy, V., Williams, C. A., Betti, R., Patel, D., Knauer, J. P., Lees, A., Cao, D., Campbell, E. M., Farmakis, P., Ejaz, R., Anderson, K. S., Epstein, R., Carroll-Nellenbeck, J., Igumenshchev, I. V., Marozas, J. A., Radha, P. B., Solodov, A. A., Thomas, C. A., Woo, K. M., Collins, T. J. B., Hu, S. X., Scullin, W., Turnbull, D., Goncharov, V. N., Churnetski, K., Forrest, C. J., Glebov, V. Yu., Heuer, P. V., McClow, H., Shah, R. C., Stoeckl, C., Theobald, W., Edgell, D. H., Ivancic, S., Rosenberg, M. J., Regan, S. P., Bredesen, D., Fella, C., Koch, M., Janezic, R. T., Bonino, M. J., Harding, D. R., Bauer, K. A., Sampat, S., Waxer, L. J., Labuzeta, M., Morse, S. F. B., Gatu-Johnson, M., Petrasso, R. D., Frenje, J. A., Murray, J., Serrato, B., Guzman, D., Shuldberg, C., Farrell, M., and Deeney, C.

Published
2024
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4. Enhanced sensitivity to target offset when using cross-beam energy transfer mitigation techniques in direct-drive inertial confinement fusion implosions.

Author

Anderson, K. S., Marozas, J. A., Collins, T. J. B., Forrest, C. J., Goncharov, V. N., and Cao, D.

Subjects
*INERTIAL confinement fusion, *IMPLOSIONS, *ENERGY transfer
Abstract

In direct-drive inertial confinement fusion, target offset from the target chamber center (or center of beam convergence) may lead to significant implosion asymmetry and fusion yield degradation. In addition, cross-beam energy transfer (CBET) has been shown to be a significant source of laser energy scattering and leads to a reduction in implosion velocity and yield. To improve energy coupling and implosion performance, several techniques for CBET mitigation have been proposed. Recent simulations, however, have shown that CBET also substantially mitigates the effect of target offset on implosion asymmetry and yield [Anderson et al., Phys. Plasmas 27, 112713 (2020)]. Furthermore, the inclusion of CBET models in radiation-hydrodynamics codes was shown to greatly improve agreement between simulations and experiments involving substantial target offset distances. This paper explores the intensity dependence of this CBET–offset effect. In addition, it is shown that enhanced sensitivity to target offset can be expected when CBET-mitigation techniques are used in direct-drive implosions. This is shown through simulations of two such CBET-mitigation techniques on the OMEGA laser: (1) decreased beam-to-target radius, and (2) beam-to-beam frequency detuning. For the typical target offset distances (<15 μm) observed in experiments on OMEGA, however, overall yield is still anticipated to be substantially higher when CBET-mitigation techniques are employed. [ABSTRACT FROM AUTHOR]

Published
2024
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5. Development of an x-ray radiography platform to study laser-direct-drive energy coupling at the National Ignition Facility

Author

Ceurvorst, L., primary, Theobald, W., additional, Rosenberg, M. J., additional, Radha, P. B., additional, Stoeckl, C., additional, Betti, R., additional, Anderson, K. S., additional, Marozas, J. A., additional, Goncharov, V. N., additional, Campbell, E. M., additional, Shuldberg, C. M., additional, Luo, R. W., additional, Sweet, W., additional, Aghaian, L., additional, Carlson, L., additional, Bachmann, B., additional, Döppner, T., additional, Hohenberger, M., additional, Glize, K., additional, Scott, R. H. H., additional, Colaïtis, A., additional, and Regan, S. P., additional

Published
2022
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6. The development of a high-resolution Eulerian radiation-hydrodynamics simulation capability for laser-driven Hohlraums

Author

Haines, Brian M., primary, Keller, D. E., additional, Long, K. P., additional, McKay, M. D., additional, Medin, Z. J., additional, Park, H., additional, Rauenzahn, R. M., additional, Scott, H. A., additional, Anderson, K. S., additional, Collins, T. J. B., additional, Green, L. M., additional, Marozas, J. A., additional, McKenty, P. W., additional, Peterson, J. H., additional, Vold, E. L., additional, Di Stefano, C., additional, Lester, R. S., additional, Sauppe, J. P., additional, Stark, D. J., additional, and Velechovsky, J., additional

Published
2022
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7. Direct-drive implosion physics: Results from OMEGA and the National Ignition Facility

Author

Radha, P. B., primary, Goncharov, V. N., additional, Hohenberger, M., additional, Sangster, T. C., additional, Betti, R., additional, Craxton, R. S., additional, Edgell, D. H., additional, Epstein, R., additional, Froula, D. H., additional, Marozas, J. A., additional, Marshall, F. J., additional, McCrory, R. L., additional, McKenty, P. W., additional, Meyerhofer, D. D., additional, Michel, D. T., additional, Hu, S. X., additional, Seka, W., additional, Shvydky, A., additional, Skupsky, S., additional, Frenje, J. A., additional, Gatu-Johnson, M., additional, Petrasso, R. D., additional, Ma, T., additional, Pape, S. Le, additional, and Mackinnon, A. J., additional

Published
2016
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8. Causes of fuel–ablator mix inferred from modeling of monochromatic time-gated radiography of OMEGA cryogenic implosions

Author

Collins, T. J. B., primary, Stoeckl, C., additional, Epstein, R., additional, Bittle, W. A., additional, Forrest, C. J., additional, Glebov, V. Yu., additional, Goncharov, V. N., additional, Harding, D. R., additional, Hu, S. X., additional, Jacobs-Perkins, D. W., additional, Kosc, T. Z., additional, Marozas, J. A., additional, Mileham, C., additional, Marshall, F. J., additional, Morse, S. F. B., additional, Radha, P. B., additional, Regan, S. P., additional, Rice, B., additional, Sangster, T. C., additional, Shoup, M. J., additional, Shmayda, W. T., additional, Sorce, C., additional, Theobald, W., additional, and Wittman, M. D., additional

Published
2022
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9. The Scattered Light Time-history Diagnostic suite at the National Ignition Facility

Author

Rosenberg, M. J., primary, Hernandez, J. E., additional, Butler, N., additional, Filkins, T., additional, Bahr, R. E., additional, Jungquist, R. K., additional, Bedzyk, M., additional, Swadling, G., additional, Ross, J. S., additional, Michel, P., additional, Lemos, N., additional, Eichmiller, J., additional, Sommers, R., additional, Nyholm, P., additional, Boni, R., additional, Marozas, J. A., additional, Craxton, R. S., additional, McKenty, P. W., additional, Sharma, A., additional, Radha, P. B., additional, Froula, D. H., additional, Datte, P., additional, Gorman, M., additional, Moody, J. D., additional, Heinmiller, J. M., additional, Fornes, J., additional, Hillyard, P., additional, and Regan, S. P., additional

Published
2021
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10. Progress in direct-drive inertial confinement fusion research at the laboratory for laser energetics

Author

McCrory, R. L., Meyerhofer, D. D., Loucks, S. J., Skupsky, S., Betti, R., Boehly, T. R., Collins, T. J.B., Craxton, R. S., Delettrez, J. A., Edgell, D. H., Epstein, R., Fletcher, K. A., Freeman, C., Frenje, J. A., Glebov, V. Yu., Goncharov, V. N., Harding, D. R., Igumenshchev, I. V., Keck, R. L., Kilkenny, J. D., Knauer, J. P., Li, C. K., Marciante, J., Marozas, J. A., Marshall, F. J., Maximov, A. V., McKenty, P. W., Morse, S. F.B., Myatt, J., Padalino, S., Petrasso, R. D., Radha, P. B., Regan, S. P., Sangster, T. C., Séguin, F. H., Seka, W., Smalyuk, V. A., Soures, J. M., Stoeckl, C., Yaakobi, B., and Zuegel, J. D.

Published
2007
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11. Direct-Drive Inertial Confinement Fusion Implosions on Omega

Author

Regan, S. P., Sangster, T. C., Meyerhofer, D. D., Anderson, K., Betti, R., Boehly, T. R., Collins, T. J. B., Craxton, R. S., Delettrez, J. A., Epstein, R., Gotchev, O. V., Glebov, V. Yu., Goncharov, V. N., Harding, D. R., Jaanimagi, P. A., Knauer, J. P., Loucks, S. J., Lund, L. D., Marozas, J. A., Marshall, F. J., Mccrory, R. L., Mckenty, P. W., Morse, S. F. B., Radha, P. B., Seka, W., Skupsky, S., Sawada, H., Smalyuk, V. A., Soures, J. M., Stoeckl, C., Yaakobi, B., Frenje, J. A., Li, C. K., Petrasso, R. D., and SÉguin, F. H.

Published
2005
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12. Direct-drive laser fusion: status, plans and future

Author

Campbell, E. M., primary, Sangster, T. C., additional, Goncharov, V. N., additional, Zuegel, J. D., additional, Morse, S. F. B., additional, Sorce, C., additional, Collins, G. W., additional, Wei, M. S., additional, Betti, R., additional, Regan, S. P., additional, Froula, D. H., additional, Dorrer, C. , additional, Harding, D. R., additional, Gopalaswamy, V., additional, Knauer, J. P., additional, Shah, R., additional, Mannion, O. M., additional, Marozas, J. A., additional, Radha, P. B., additional, Rosenberg, M. J., additional, Collins, T. J. B., additional, Christopherson, A. R., additional, Solodov, A. A., additional, Cao, D., additional, Palastro, J. P., additional, Follett, R. K., additional, and Farrell, M., additional

Published
2020
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13. Effect of cross-beam energy transfer on target-offset asymmetry in direct-drive inertial confinement fusion implosions

Author

Anderson, K. S., primary, Forrest, C. J., additional, Mannion, O. M., additional, Marshall, F. J., additional, Shah, R. C., additional, Michel, D. T., additional, Marozas, J. A., additional, Radha, P. B., additional, Edgell, D. H., additional, Epstein, R., additional, Goncharov, V. N., additional, Knauer, J. P., additional, Gatu Johnson, M., additional, and Laffite, S., additional

Published
2020
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15. Direct-drive laser fusion: status, plans and future.

Author

Campbell, E. M., Sangster, T. C., Goncharov, V. N., Zuegel, J. D., Morse, S. F. B., Sorce, C., Collins, G. W., Wei, M. S., Betti, R., Regan, S. P., Froula, D. H., Dorrer, C., Harding, D. R., Gopalaswamy, V., Knauer, J. P., Shah, R., Mannion, O. M., Marozas, J. A., Radha, P. B., and Rosenberg, M. J.

Subjects
INERTIAL confinement fusion, LASER fusion, LASER-plasma interactions, PLASMA physics, GOVERNMENT laboratories
Abstract

Laser-direct drive (LDD), along with laser indirect (X-ray) drive (LID) and magnetic drive with pulsed power, is one of the three viable inertial confinement fusion approaches to achieving fusion ignition and gain in the laboratory. The LDD programme is primarily being executed at both the Omega Laser Facility at the Laboratory for Laser Energetics and at the National Ignition Facility (NIF) at Lawrence Livermore National Laboratory. LDD research at Omega includes cryogenic implosions, fundamental physics including material properties, hydrodynamics and laser–plasma interaction physics. LDD research on the NIF is focused on energy coupling and laser–plasma interactions physics at ignition-scale plasmas. Limited implosions on the NIF in the 'polar-drive' configuration, where the irradiation geometry is configured for LID, are also a feature of LDD research. The ability to conduct research over a large range of energy, power and scale size using both Omega and the NIF is a major positive aspect of LDD research that reduces the risk in scaling from OMEGA to megajoule-class lasers. The paper will summarize the present status of LDD research and plans for the future with the goal of ultimately achieving a burning plasma in the laboratory. This article is part of a discussion meeting issue 'Prospects for high gain inertial fusion energy (part 2)'. [ABSTRACT FROM AUTHOR]

Published
2021
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17. Wavelength-detuning cross-beam energy transfer mitigation scheme for direct drive: Modeling and evidence from National Ignition Facility implosions

Author

Marozas, J. A., primary, Hohenberger, M., additional, Rosenberg, M. J., additional, Turnbull, D., additional, Collins, T. J. B., additional, Radha, P. B., additional, McKenty, P. W., additional, Zuegel, J. D., additional, Marshall, F. J., additional, Regan, S. P., additional, Sangster, T. C., additional, Seka, W., additional, Campbell, E. M., additional, Goncharov, V. N., additional, Bowers, M. W., additional, Di Nicola, J.-M. G., additional, Erbert, G., additional, MacGowan, B. J., additional, Pelz, L. J., additional, Moody, J., additional, and Yang, S. T., additional

Published
2018
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18. First Observation of Cross-Beam Energy Transfer Mitigation for Direct-Drive Inertial Confinement Fusion Implosions Using Wavelength Detuning at the National Ignition Facility

Author

Marozas, J. A., primary, Hohenberger, M., additional, Rosenberg, M. J., additional, Turnbull, D., additional, Collins, T. J. B., additional, Radha, P. B., additional, McKenty, P. W., additional, Zuegel, J. D., additional, Marshall, F. J., additional, Regan, S. P., additional, Sangster, T. C., additional, Seka, W., additional, Campbell, E. M., additional, Goncharov, V. N., additional, Bowers, M. W., additional, Di Nicola, J.-M. G., additional, Erbert, G., additional, MacGowan, B. J., additional, Pelz, L. J., additional, and Yang, S. T., additional

Published
2018
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19. The National Direct-Drive Program: OMEGA to the National Ignition Facility

Author

Regan, S. P., primary, Goncharov, V. N., additional, Sangster, T. C., additional, Campbell, E. M., additional, Betti, R., additional, Anderson, K. S., additional, Bernat, T., additional, Bose, A., additional, Boehly, T. R., additional, Bonino, M. J., additional, Cao, D., additional, Chapman, R., additional, Collins, T. J. B., additional, Craxton, R. S., additional, Davis, A. K., additional, Delettrez, J. A., additional, Edgell, D. H., additional, Epstein, R., additional, Farrell, M., additional, Forrest, C. J., additional, Frenje, J. A., additional, Froula, D. H., additional, Johnson, M. Gatu, additional, Gibson, C., additional, Glebov, V. Yu., additional, Greenwood, A., additional, Harding, D. R., additional, Hohenberger, M., additional, Hu, S. X., additional, Huang, H., additional, Hund, J., additional, Igumenshchev, I. V., additional, Jacobs-Perkins, D. W., additional, Janezic, R. T., additional, Karasik, M., additional, Keck, R. L., additional, Kelly, J. H., additional, Kessler, T. J., additional, Knauer, J. P., additional, Kosc, T. Z., additional, Loucks, S. J., additional, Marozas, J. A., additional, Marshall, F. J., additional, McCrory, R. L., additional, McKenty, P. W., additional, Meyerhofer, D. D., additional, Michel, D. T., additional, Myatt, J. F., additional, Obenschain, S. P., additional, Petrasso, R. D., additional, Petta, N., additional, Radha, P. B., additional, Rosenberg, M. J., additional, Schmitt, A. J., additional, Schmitt, M. J., additional, Schoff, M., additional, Seka, W., additional, Shmayda, W. T., additional, Shoup, M. J., additional, Shvydky, A., additional, Solodov, A. A., additional, Stoeckl, C., additional, Sweet, W., additional, Taylor, C., additional, Taylor, R., additional, Theobald, W., additional, Ulreich, J., additional, Wittman, M. D., additional, Woo, K. M., additional, and Zuegel, J. D., additional

Published
2017
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20. Demonstration of Fuel Hot-Spot Pressure in Excess of 50 Gbar for Direct-Drive, Layered Deuterium-Tritium Implosions on OMEGA

Author

Massachusetts Institute of Technology. Plasma Science and Fusion Center, Petrasso, Richard D, Regan, S. P., Goncharov, V. N., Igumenshchev, I. V., Sangster, T. C., Betti, R., Bose, A., Boehly, T. R., Bonino, M. J., Campbell, E. M., Cao, D., Collins, T. J. B., Craxton, R. S., Davis, A. K., Delettrez, J. A., Edgell, D. H., Epstein, R., Forrest, C. J., Frenje, J. A., Froula, D. H., Gatu Johnson, M., Glebov, V. Yu., Harding, D. R., Hohenberger, M., Hu, S. X., Jacobs-Perkins, D., Janezic, R., Karasik, M., Keck, R. L., Kelly, J. H., Kessler, T. J., Knauer, J. P., Kosc, T. Z., Loucks, S. J., Marozas, J. A., Marshall, F. J., McCrory, R. L., McKenty, P. W., Meyerhofer, D. D., Michel, D. T., Myatt, J. F., Obenschain, S. P., Radha, P. B., Rice, B., Rosenberg, M. J., Schmitt, A. J., Schmitt, M. J., Seka, W., Shmayda, W. T., Shoup, M. J., Shvydky, A., Skupsky, S., Solodov, A. A., Stoeckl, C., Theobald, W., Ulreich, J., Wittman, M. D., Woo, K. M., Yaakobi, B., Zuegel, J. D., Massachusetts Institute of Technology. Plasma Science and Fusion Center, Petrasso, Richard D, Regan, S. P., Goncharov, V. N., Igumenshchev, I. V., Sangster, T. C., Betti, R., Bose, A., Boehly, T. R., Bonino, M. J., Campbell, E. M., Cao, D., Collins, T. J. B., Craxton, R. S., Davis, A. K., Delettrez, J. A., Edgell, D. H., Epstein, R., Forrest, C. J., Frenje, J. A., Froula, D. H., Gatu Johnson, M., Glebov, V. Yu., Harding, D. R., Hohenberger, M., Hu, S. X., Jacobs-Perkins, D., Janezic, R., Karasik, M., Keck, R. L., Kelly, J. H., Kessler, T. J., Knauer, J. P., Kosc, T. Z., Loucks, S. J., Marozas, J. A., Marshall, F. J., McCrory, R. L., McKenty, P. W., Meyerhofer, D. D., Michel, D. T., Myatt, J. F., Obenschain, S. P., Radha, P. B., Rice, B., Rosenberg, M. J., Schmitt, A. J., Schmitt, M. J., Seka, W., Shmayda, W. T., Shoup, M. J., Shvydky, A., Skupsky, S., Solodov, A. A., Stoeckl, C., Theobald, W., Ulreich, J., Wittman, M. D., Woo, K. M., Yaakobi, B., and Zuegel, J. D.

Abstract

A record fuel hot-spot pressure P[subscript hs] = 56±7 Gbar was inferred from x-ray and nuclear diagnostics for direct-drive inertial confinement fusion cryogenic, layered deuterium–tritium implosions on the 60-beam, 30-kJ, 351-nm OMEGA Laser System. When hydrodynamically scaled to the energy of the National Ignition Facility, these implosions achieved a Lawson parameter ∼60% of the value required for ignition [A. Bose et al., Phys. Rev. E 93, LM15119ER (2016)], similar to indirect-drive implosions [R. Betti et al., Phys. Rev. Lett. 114, 255003 (2015)], and nearly half of the direct-drive ignition-threshold pressure. Relative to symmetric, one-dimensional simulations, the inferred hot-spot pressure is approximately 40% lower. Three-dimensional simulations suggest that low-mode distortion of the hot spot seeded by laser-drive nonuniformity and target-positioning error reduces target performance., United States. Department of Energy (DE-NA0001944)

Published
2017

21. 100 J UV glass laser for dynamic compression research

Author

Zweiback, J., additional, Fochs, S. F., additional, Bromage, J., additional, Broege, D., additional, Cuffney, R., additional, Currier, Z., additional, Dorrer, C., additional, Ehrich, B., additional, Engler, J., additional, Guardalben, M., additional, Kephalos, N., additional, Marozas, J., additional, Roides, R., additional, and Zuegel, J., additional

Published
2017
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22. Optical smoothing of laser imprinting in planar-target experiments on OMEGA EP using multi-FM 1-D smoothing by spectral dispersion

Author

Hohenberger, M., primary, Shvydky, A., additional, Marozas, J. A., additional, Fiksel, G., additional, Bonino, M. J., additional, Canning, D., additional, Collins, T. J. B., additional, Dorrer, C., additional, Kessler, T. J., additional, Kruschwitz, B. E., additional, McKenty, P. W., additional, Meyerhofer, D. D., additional, Regan, S. P., additional, Sangster, T. C., additional, and Zuegel, J. D., additional

Published
2016
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23. Publisher’s Note: Demonstration of Fuel Hot-Spot Pressure in Excess of 50 Gbar for Direct-Drive, Layered Deuterium-Tritium Implosions on OMEGA [Phys. Rev. Lett.117, 025001 (2016)]

Author

Regan, S. P., primary, Goncharov, V. N., additional, Igumenshchev, I. V., additional, Sangster, T. C., additional, Betti, R., additional, Bose, A., additional, Boehly, T. R., additional, Bonino, M. J., additional, Campbell, E. M., additional, Cao, D., additional, Collins, T. J. B., additional, Craxton, R. S., additional, Davis, A. K., additional, Delettrez, J. A., additional, Edgell, D. H., additional, Epstein, R., additional, Forrest, C. J., additional, Frenje, J. A., additional, Froula, D. H., additional, Gatu Johnson, M., additional, Glebov, V. Yu., additional, Harding, D. R., additional, Hohenberger, M., additional, Hu, S. X., additional, Jacobs-Perkins, D., additional, Janezic, R., additional, Karasik, M., additional, Keck, R. L., additional, Kelly, J. H., additional, Kessler, T. J., additional, Knauer, J. P., additional, Kosc, T. Z., additional, Loucks, S. J., additional, Marozas, J. A., additional, Marshall, F. J., additional, McCrory, R. L., additional, and McKenty, P. W., additional

Published
2016
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24. Demonstration of Fuel Hot-Spot Pressure in Excess of 50 Gbar for Direct-Drive, Layered Deuterium-Tritium Implosions on OMEGA

Author

Regan, S. P., primary, Goncharov, V. N., additional, Igumenshchev, I. V., additional, Sangster, T. C., additional, Betti, R., additional, Bose, A., additional, Boehly, T. R., additional, Bonino, M. J., additional, Campbell, E. M., additional, Cao, D., additional, Collins, T. J. B., additional, Craxton, R. S., additional, Davis, A. K., additional, Delettrez, J. A., additional, Edgell, D. H., additional, Epstein, R., additional, Forrest, C. J., additional, Frenje, J. A., additional, Froula, D. H., additional, Gatu Johnson, M., additional, Glebov, V. Yu., additional, Harding, D. R., additional, Hohenberger, M., additional, Hu, S. X., additional, Jacobs-Perkins, D., additional, Janezic, R., additional, Karasik, M., additional, Keck, R. L., additional, Kelly, J. H., additional, Kessler, T. J., additional, Knauer, J. P., additional, Kosc, T. Z., additional, Loucks, S. J., additional, Marozas, J. A., additional, Marshall, F. J., additional, McCrory, R. L., additional, McKenty, P. W., additional, Meyerhofer, D. D., additional, Michel, D. T., additional, Myatt, J. F., additional, Obenschain, S. P., additional, Petrasso, R. D., additional, Radha, P. B., additional, Rice, B., additional, Rosenberg, M. J., additional, Schmitt, A. J., additional, Schmitt, M. J., additional, Seka, W., additional, Shmayda, W. T., additional, Shoup, M. J., additional, Shvydky, A., additional, Skupsky, S., additional, Solodov, A. A., additional, Stoeckl, C., additional, Theobald, W., additional, Ulreich, J., additional, Wittman, M. D., additional, Woo, K. M., additional, Yaakobi, B., additional, and Zuegel, J. D., additional

Published
2016
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26. Polar-direct-drive experiments at the National Ignition Facility

Author

Radha, P B, primary, Hohenberger, M, additional, Marshall, F J, additional, Michel, D T, additional, Bates, J, additional, Boehly, T R, additional, Collins, T J B, additional, Craxton, R S, additional, Delettrez, J A, additional, Dixit, S N, additional, Edgell, D H, additional, Frenje, J A, additional, Froula, D H, additional, Goncharov, V N, additional, Hu, S X, additional, Karasik, M, additional, Knauer, J P, additional, LePape, S, additional, Marozas, J A, additional, McCrory, R L, additional, McKenty, P W, additional, Meyerhofer, D. D., additional, Myatt, J F, additional, Obenschein, S, additional, Petrasso, R D, additional, Regan, S P, additional, Rosenberg, M J, additional, Sangster, T C, additional, Seka, W, additional, Shvydky, A, additional, Sio, H, additional, Skupsky, S, additional, and Zylstra, A, additional

Published
2016
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28. Isolating and quantifying cross-beam energy transfer in direct-drive implosions on OMEGA and the National Ignition Facility

Author

Davis, A. K., primary, Cao, D., additional, Michel, D. T., additional, Hohenberger, M., additional, Edgell, D. H., additional, Epstein, R., additional, Goncharov, V. N., additional, Hu, S. X., additional, Igumenshchev, I. V., additional, Marozas, J. A., additional, Maximov, A. V., additional, Myatt, J. F., additional, Radha, P. B., additional, Regan, S. P., additional, Sangster, T. C., additional, and Froula, D. H., additional

Published
2016
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29. Direct drive: Simulations and results from the National Ignition Facility

Author

Radha, P. B., primary, Hohenberger, M., additional, Edgell, D. H., additional, Marozas, J. A., additional, Marshall, F. J., additional, Michel, D. T., additional, Rosenberg, M. J., additional, Seka, W., additional, Shvydky, A., additional, Boehly, T. R., additional, Collins, T. J. B., additional, Campbell, E. M., additional, Craxton, R. S., additional, Delettrez, J. A., additional, Dixit, S. N., additional, Frenje, J. A., additional, Froula, D. H., additional, Goncharov, V. N., additional, Hu, S. X., additional, Knauer, J. P., additional, McCrory, R. L., additional, McKenty, P. W., additional, Meyerhofer, D. D., additional, Moody, J., additional, Myatt, J. F., additional, Petrasso, R. D., additional, Regan, S. P., additional, Sangster, T. C., additional, Sio, H., additional, Skupsky, S., additional, and Zylstra, A., additional

Published
2016
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30. 100-J UV laser for dynamic compression research

Author

Zweiback, J., additional, Fochs, S. F., additional, Bromage, J., additional, Broege, D., additional, Cuffney, R., additional, Currier, Z., additional, Dorrer, C., additional, Ehrich, B., additional, Engler, J., additional, Guardalben, M., additional, Kephalos, N., additional, Marozas, J., additional, Roides, R., additional, and Zuegel, J., additional

Published
2016
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31. Direct-drive inertial confinement fusion: A review

Author

Craxton, R. S., primary, Anderson, K. S., additional, Boehly, T. R., additional, Goncharov, V. N., additional, Harding, D. R., additional, Knauer, J. P., additional, McCrory, R. L., additional, McKenty, P. W., additional, Meyerhofer, D. D., additional, Myatt, J. F., additional, Schmitt, A. J., additional, Sethian, J. D., additional, Short, R. W., additional, Skupsky, S., additional, Theobald, W., additional, Kruer, W. L., additional, Tanaka, K., additional, Betti, R., additional, Collins, T. J. B., additional, Delettrez, J. A., additional, Hu, S. X., additional, Marozas, J. A., additional, Maximov, A. V., additional, Michel, D. T., additional, Radha, P. B., additional, Regan, S. P., additional, Sangster, T. C., additional, Seka, W., additional, Solodov, A. A., additional, Soures, J. M., additional, Stoeckl, C., additional, and Zuegel, J. D., additional

Published
2015
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32. Polar-direct-drive experiments on the National Ignition Facilitya)

Author

Hohenberger, M., primary, Radha, P. B., additional, Myatt, J. F., additional, LePape, S., additional, Marozas, J. A., additional, Marshall, F. J., additional, Michel, D. T., additional, Regan, S. P., additional, Seka, W., additional, Shvydky, A., additional, Sangster, T. C., additional, Bates, J. W., additional, Betti, R., additional, Boehly, T. R., additional, Bonino, M. J., additional, Casey, D. T., additional, Collins, T. J. B., additional, Craxton, R. S., additional, Delettrez, J. A., additional, Edgell, D. H., additional, Epstein, R., additional, Fiksel, G., additional, Fitzsimmons, P., additional, Frenje, J. A., additional, Froula, D. H., additional, Goncharov, V. N., additional, Harding, D. R., additional, Kalantar, D. H., additional, Karasik, M., additional, Kessler, T. J., additional, Kilkenny, J. D., additional, Knauer, J. P., additional, Kurz, C., additional, Lafon, M., additional, LaFortune, K. N., additional, MacGowan, B. J., additional, Mackinnon, A. J., additional, MacPhee, A. G., additional, McCrory, R. L., additional, McKenty, P. W., additional, Meeker, J. F., additional, Meyerhofer, D. D., additional, Nagel, S. R., additional, Nikroo, A., additional, Obenschain, S., additional, Petrasso, R. D., additional, Ralph, J. E., additional, Rinderknecht, H. G., additional, Rosenberg, M. J., additional, Schmitt, A. J., additional, Wallace, R. J., additional, Weaver, J., additional, Widmayer, C., additional, Skupsky, S., additional, Solodov, A. A., additional, Stoeckl, C., additional, Yaakobi, B., additional, and Zuegel, J. D., additional

Published
2015
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34. Theory of hydro-equivalent ignition for inertial fusion and its applications to OMEGA and the National Ignition Facility

Author

Nora, R., primary, Betti, R., additional, Anderson, K. S., additional, Shvydky, A., additional, Bose, A., additional, Woo, K. M., additional, Christopherson, A. R., additional, Marozas, J. A., additional, Collins, T. J. B., additional, Radha, P. B., additional, Hu, S. X., additional, Epstein, R., additional, Marshall, F. J., additional, McCrory, R. L., additional, Sangster, T. C., additional, and Meyerhofer, D. D., additional

Published
2014
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35. The National Direct-Drive Program: OMEGA to the National Ignition Facility

Author

Regan, S. P., Goncharov, V. N., Sangster, T. C., Campbell, E. M., Betti, R., Anderson, K. S., Bernat, T., Bose, A., Boehly, T. R., Bonino, M. J., Cao, D., Chapman, R., Collins, T. J. B., Craxton, R. S., Davis, A. K., Delettrez, J. A., Edgell, D. H., Epstein, R., Farrell, M., Forrest, C. J., Frenje, J. A., Froula, D. H., Johnson, M. Gatu, Gibson, C., Glebov, V. Yu., Greenwood, A., Harding, D. R., Hohenberger, M., Hu, S. X., Huang, H., Hund, J., Igumenshchev, I. V., Jacobs-Perkins, D. W., Janezic, R. T., Karasik, M., Keck, R. L., Kelly, J. H., Kessler, T. J., Knauer, J. P., Kosc, T. Z., Loucks, S. J., Marozas, J. A., Marshall, F. J., McCrory, R. L., McKenty, P. W., Meyerhofer, D. D., Michel, D. T., Myatt, J. F., Obenschain, S. P., Petrasso, R. D., Petta, N., Radha, P. B., Rosenberg, M. J., Schmitt, A. J., Schmitt, M. J., Schoff, M., Seka, W., Shmayda, W. T., Shoup, M. J., Shvydky, A., Solodov, A. A., Stoeckl, C., Sweet, W., Taylor, C., Taylor, R., Theobald, W., Ulreich, J., Wittman, M. D., Woo, K. M., and Zuegel, J. D.

Abstract

AbstractThe goal of the National Direct-Drive Program is to demonstrate and understand the physics of laser direct drive (LDD). Efforts are underway on OMEGA for the 100-Gbar Campaign to demonstrate and understand the physics for hot-spot conditions and formation relevant for ignition at the 1-MJ scale, and on the National Ignition Facility to develop an understanding of the direct-drive physics at long scale lengths for the MJ Direct-Drive Campaign. The strategy of the National Direct-Drive Program is described; the requirements for the deuterium-tritium cryogenic fill-tube target being developed for OMEGA are presented; and preliminary LDD implosion measurements of hydrodynamic mixing seeded by laser imprint, the target-mounting stalk, and microscopic surface debris are reported.

Published
2018
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36. Polar-drive implosions on OMEGA and the National Ignition Facility

Author

Radha, P. B., primary, Marshall, F. J., additional, Marozas, J. A., additional, Shvydky, A., additional, Gabalski, I., additional, Boehly, T. R., additional, Collins, T. J. B., additional, Craxton, R. S., additional, Edgell, D. H., additional, Epstein, R., additional, Frenje, J. A., additional, Froula, D. H., additional, Goncharov, V. N., additional, Hohenberger, M., additional, McCrory, R. L., additional, McKenty, P. W., additional, Meyerhofer, D. D., additional, Petrasso, R. D., additional, Sangster, T. C., additional, and Skupsky, S., additional

Published
2013
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37. A polar-drive shock-ignition design for the National Ignition Facility

Author

Anderson, K. S., primary, Betti, R., additional, McKenty, P. W., additional, Collins, T. J. B., additional, Hohenberger, M., additional, Theobald, W., additional, Craxton, R. S., additional, Delettrez, J. A., additional, Lafon, M., additional, Marozas, J. A., additional, Nora, R., additional, Skupsky, S., additional, and Shvydky, A., additional

Published
2013
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38. Commissioning of a multiple-frequency modulation smoothing by spectral dispersion demonstration system on OMEGA EP

Author

Kruschwitz, B. E., primary, Kelly, J. H., additional, Dorrer, C., additional, Okishev, A. V., additional, Waxer, L. J., additional, Balonek, G., additional, Begishev, I. A., additional, Bittle, W., additional, Consentino, A., additional, Cuffney, R., additional, Hill, E., additional, Marozas, J. A., additional, Moore, M., additional, Roides, R. G., additional, and Zuegel, J. D., additional

Published
2013
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40. Preparing for polar-drive ignition on the National Ignition Facility.

Author

McKenty, P. W., Collins, T. J. B., Marozas, J. A., Kessler, T. J., Zuegel, J. D., Shoup, M. J., Craxton, R. S., Marshall, F. J., Shvydky, A., Skupsky, S., Goncharov, V. N., Radha, P. B., Epstein, R., Sangster, T. C., Meyerhofer, D. D., McCrory, R. L., Kilkenny, J. D., Nikroo, A., Hoppe, M. L., and MacKinnon, A. J.

Subjects
X-rays, CRYOGENICS, EXPERIMENTS, LOW temperature physics
Abstract

The implementation of polar drive (PD) at the National Ignition Facility (NIF) will enable the execution of direct-drive implosions while the facility is configured for x-ray drive. The Laboratory for Laser Energetics (LLE), in collaboration with LLNL, LANL and GA, is implementing PD on the NIF. LLE has designed and participates in the use of PD implosions for diagnostic commissioning on the NIF. LLE has an active experimental campaign to develop PD in both warm and cryogenic target experiments on OMEGA. LLE and its partners are developing a Polar Drive Project Execution Plan, which will provide a detailed outline of the requirements, resources, and timetable leading to PD-ignition experiments on the NIF. [ABSTRACT FROM AUTHOR]

Published
2013
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41. Polar drive on OMEGA.

Author

Radha, P. B., Marshall, F. J., Boehly, T. R., Collins, T. J. B., Craxton, R. S., Edgell, D., Epstein, R., Frenje, J., Goncharov, V. N., Marozas, J. A., McCrory, R. L., McKenty, P. W., Meyerhofer, D. D., Petrasso, R. D., Sangster, T. C., Shvydky, A., and Skupsky, S.

Subjects
LASER pulses, LASER deposition, HEAT conduction, PLASMA interactions, ENERGY transfer
Abstract

High-convergence polar-drive experiments are being conducted on OMEGA [T. R. Boehly et al., Opt. Commum. 133, 495 (1997)] using triple-picket laser pulses. The goal of OMEGA experiments is to validate modeling of oblique laser deposition, heat conduction in the presence of nonradial thermal gradients in the corona, and implosion energetics in the presence of laser-plasma interactions such as crossed-beam energy transfer. Simulated shock velocities near the equator, where the beams are obliquely incident, are within 5% of experimentally inferred values in warm plastic shells, well within the required accuracy for ignition. High, near-one-dimensional areal density is obtained in warm-plastic-shell implosions. Simulated backlit images of the compressing core are in good agreement with measured images. Outstanding questions that will be addressed in the future relate to the role of cross-beam transfer in polar drive irradiation and increasing the energy coupled into the target by decreasing beam obliquity. [ABSTRACT FROM AUTHOR]

Published
2013
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42. Progress in direct-drive inertial confinement fusion.

Author

McCrory, R. L., Meyerhofer, D. D., Betti, R., Boehly, T. R., Collins, T. J. B., Craxton, R. S., Delettrez, J. A., Edgell, D. H., Epstein, R., Froula, D. H., Glebov, V. Yu., Goncharov, V. N., Harding, D. R., S. X. Hu, Igumenshchev, I. V., Knauer, J. P., Loucks, S. J., Marozas, J. A., Marshall, F. J., and McKenty, P. W.

Subjects
INERTIAL confinement fusion, CRYOGENICS, ENERGY transfer, LASER beams, CONTROLLED fusion
Abstract

Significant progress has been made in direct-drive inertial confinement fusion research at the Laboratory for Laser Energetics since the 2009 IFSA Conference [R.L. McCrory et al., J. Phys.: Conf. Ser. 244, 012004 (2010)]. Areal densities of 300mg/cm² have been measured in cryogenic target implosions with neutron yields 15%of 1-D predictions. A model of crossed-beam energy transfer has been developed to explain the observed scattered-light spectrum and laser-target coupling. Experiments show that its impact can be mitigated by changing the ratio of the laser beam to target diameter. Progress continues in the development of the polar-drive concept that will allow direct-drive-ignition experiments to be conducted on the National Ignition Facility using the indirect-drive-beam layout. [ABSTRACT FROM AUTHOR]

Published
2013
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43. OMEGA polar-drive target designs

Author

Radha, P. B., primary, Marozas, J. A., additional, Marshall, F. J., additional, Shvydky, A., additional, Collins, T. J. B., additional, Goncharov, V. N., additional, McCrory, R. L., additional, McKenty, P. W., additional, Meyerhofer, D. D., additional, Sangster, T. C., additional, and Skupsky, S., additional

Published
2012
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44. A polar-drive–ignition design for the National Ignition Facility

Author

Collins, T. J. B., primary, Marozas, J. A., additional, Anderson, K. S., additional, Betti, R., additional, Craxton, R. S., additional, Delettrez, J. A., additional, Goncharov, V. N., additional, Harding, D. R., additional, Marshall, F. J., additional, McCrory, R. L., additional, Meyerhofer, D. D., additional, McKenty, P. W., additional, Radha, P. B., additional, Shvydky, A., additional, Skupsky, S., additional, and Zuegel, J. D., additional

Published
2012
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46. Multiple spherically converging shock waves in liquid deuterium

Author

Boehly, T. R., primary, Goncharov, V. N., additional, Seka, W., additional, Hu, S. X., additional, Marozas, J. A., additional, Meyerhofer, D. D., additional, Celliers, P. M., additional, Hicks, D. G., additional, Barrios, M. A., additional, Fratanduono, D., additional, and Collins, G. W., additional

Published
2011
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48. Inertial Confinement Fusion Using the OMEGA Laser System

Author

Radha, P B, primary, Betti, R, additional, Boehly, T R, additional, Delettrez, J A, additional, Edgell, D H, additional, Goncharov, V N, additional, Igumenshchev, I V, additional, Knauer, J P, additional, Marozas, J A, additional, Marshall, F J, additional, McCrory, R L, additional, Meyerhofer, D D, additional, Regan, S P, additional, Sangster, T C, additional, Seka, W, additional, Skupsky, S, additional, Solodov, A A, additional, Stoeckl, C, additional, Theobald, W, additional, Frenje, J A, additional, Casey, D T, additional, Li, C K, additional, and Petrasso, R D, additional

Published
2011
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49. Triple-picket warm plastic-shell implosions on OMEGA

Author

Radha, P. B., primary, Stoeckl, C., additional, Goncharov, V. N., additional, Delettrez, J. A., additional, Edgell, D. H., additional, Frenje, J. A., additional, Igumenshchev, I. V., additional, Knauer, J. P., additional, Marozas, J. A., additional, McCrory, R. L., additional, Meyerhofer, D. D., additional, Petrasso, R. D., additional, Regan, S. P., additional, Sangster, T. C., additional, Seka, W., additional, and Skupsky, S., additional

Published
2011
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