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86 results on '"Craxton, R.S."'

1. Replicating the Z iron opacity experiments on the NIF

Author

Perry, T.S., Heeter, R.F., Opachich, Y.P., Ross, P.W., Kline, J.L., Flippo, K.A., Sherrill, M.E., Dodd, E.S., DeVolder, B.G., Cardenas, T., Archuleta, T.N., Craxton, R.S., Zhang, R., McKenty, P.W., Garcia, E.M., Huffman, E.J., King, J.A., Ahmed, M.F., Emig, J.A., Ayers, S.L, Barrios, M.A., May, M.J., Schneider, M.B., Liedahl, D.A., Wilson, B.G., Urbatsch, T.J., Iglesias, C.A., Bailey, J.E., and Rochau, G.A.

Published
2017
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2. 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., Séguin, F.H., and Kyrala, G.A., editor

Published
2005
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3. Pathways towards break even for low convergence ratio direct-drive inertial confinement fusion

Author

Paddock, R.W., primary, Martin, H., additional, Ruskov, R.T., additional, Scott, R.H.H., additional, Garbett, W., additional, Haines, B.M., additional, Zylstra, A.B., additional, Campbell, E.M., additional, Collins, T.J.B., additional, Craxton, R.S., additional, Thomas, C.A., additional, Goncharov, V.N., additional, Aboushelbaya, R., additional, Feng, Q.S., additional, von der Leyen, M.W., additional, Ouatu, I., additional, Spiers, B.T., additional, Timmis, R., additional, Wang, R.H.W., additional, and Norreys, P.A., additional

Published
2022
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5. Reduction of laser imprinting using polarization smoothing on a solid-state fusion laser

Author

Boehly, T.R., Smalyuk, V.A., Meyerhofer, D.D., Knauer, J.P., Bradley, D.K., Craxton, R.S., Guardalben, M.J., Skupsky, S., and Kessler, T.J.

Subjects
Solid-state lasers -- Research, Laser beams -- Research, Laser fusion -- Research, Physics
Abstract

A laser beam-smoothing process known as polarization smoothing is presented. A birefringent optical wedge divides the individual laser beams into two orthogonally polarized beams that, when coupled with a distributed phase plate, produce two speckle patterns shifted with regards to one another. This instantaneously decreases the on-targe nonuniformity by a factor of square root of 2. This optical reduction was measured and its effect was observed in laser-driven targets.

Published
1999

6. 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
Physics, QC1-999
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.

Published
2013
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7. 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., Hu S.X., Igumenshchev I.V., Knauer J.P., Loucks S.J., Marozas J.A., Marshall F.J., McKenty P.W., Michel T., Nilson P.M., Radha P.B., Regan S.P., Sangster T.C., Seka W., Shmayda W.T., Short R.W., Shvarts D., Skupsky S., Soures J.M., Stoeckl C., Theobald W., Yaakobi B., Frenje J.A., Casey D.T., Li C.K., Petrasso R.D., Séguin F.H., Padalino S.J., Fletcher K.A., Celliers P.M., Collins G.W., and Robey H.F.

Subjects
Physics, QC1-999
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.

Published
2013
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8. Progress in the shock-ignition inertial confinement fusion concept

Author

Theobald W., Casner A., Nora R., Ribeyre X., Lafon M., Anderson K.S., Betti R., Craxton R.S., Delettrez J.A., Frenje J.A., Glebov V.Yu., Gotchev O.V., Hohenberger M., Hu S.X., Marshall F.J., McCrory R.L., Meyerhofer D.D., Perkins L.J., Sangster T.C., Schurtz G., Seka W., Smalyuk V.A., Stoeckl C., and Yaakobi B.

Subjects
Physics, QC1-999
Abstract

Shock-ignition experiments with peak laser intensities of ∼8 × 1015 W/cm2 were performed. D2-filled plastic shells were compressed on a low adiabat by 40 of the 60 OMEGA beams. The remaining 20 beams were delayed and tightly focused onto the imploding shell to generate a strong shock. Up to 35% backscattering of laser energy was measured at the highest intensity. Hard x-ray measurements reveal a relatively low hot-electron temperature of ∼40 keV, independent of intensity and spike onset time.

Published
2013
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9. 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., MacKinnon A.J., LePape S., Marinak M.M., Schmitt M.J., Bradley P.A., Krasheninnikova N.S., Magelssen G.R., and Murphy T.J.

Subjects
Physics, QC1-999
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.

Published
2013
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10. The National Direct-Drive Inertial Confinement Fusion Program

Author

Regan, S.P., primary, Goncharov, V.N., additional, Sangster, T.C., additional, Campbell, E.M., additional, Betti, R., additional, Bates, J.W., additional, Bauer, K., additional, Bernat, T., additional, Bhandarkar, S., additional, Boehly, T.R., additional, Bonino, M.J., additional, Bose, A., additional, Cao, D., additional, Carlson, L., additional, Chapman, R., additional, Chapman, T., additional, Collins, G.W., additional, Collins, T.J.B., additional, Craxton, R.S., additional, Delettrez, J.A., additional, Edgell, D.H., additional, Epstein, R., additional, Farrell, M., additional, Forrest, C.J., additional, Follett, R.K., additional, Frenje, J.A., additional, Froula, D.H., additional, Gatu Johnson, M., additional, Gibson, C.R., additional, Gonzalez, L., additional, Goyon, C., additional, Glebov, V.Yu, additional, Gopalaswamy, V., 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, Kelly, J.H., additional, Kessler, T.J., additional, Knauer, J.P., additional, Kosc, T.Z., additional, Luo, R., additional, Loucks, S.J., additional, Marozas, J.A., additional, Marshall, F.J., additional, Mauldin, M., additional, McCrory, R.L., additional, Mckenty, P.W., additional, Michel, D.T., additional, Michel, P., additional, Moody, J.D., additional, Myatt, J.F., additional, Nikroo, A., additional, Nilson, P.M., additional, Obenschain, S.P., additional, Palastro, J.P., additional, Peebles, J., additional, Petrasso, R.D., additional, Petta, N., additional, Radha, P.B., additional, Ralph, J.E., additional, Rosenberg, M.J., additional, Sampat, S., additional, Schmitt, A.J., additional, Schmitt, M.J., additional, Schoff, M., additional, Seka, W., additional, Shah, R., additional, Rygg, J.R., additional, Shaw, J.G., additional, Short, R., additional, Shmayda, W.T., additional, Shoup, M.J., additional, Shvydky, A., additional, Solodov, A.A., additional, Sorce, C., additional, Stadermann, M., additional, Stoeckl, C., additional, Sweet, W., additional, Taylor, C., additional, Taylor, R., additional, Theobald, W., additional, Turnbull, D.P., additional, Ulreich, J., additional, Wittman, M.D., additional, Woo, K.M., additional, Youngblood, K., additional, and Zuegel, J.D., additional

Published
2018
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11. OMEGA experiments and preparation for moderate-gain direct-drive experiments on NIF

Author

Mc Crory, R.L., Bahr, R.E., Boehly, T.R., Collins, T.J.B., Craxton, R.S., Delettrez, J.A., Donaldson, W.R., Epstein, R., Goncharov, V.N., Gram, R.Q., Harding, D.R., Jaanimagi, P.A., Keck, R.L., Knauer, J.P., Loucks, S.J., Marshall, F.J., McKenty, P.W., Meyerhofer, D.D., Morse, S.F.B., Gotchev, O.V., Radha, P.B., Regan, S.P., Seka, W., Skupsky, S., Smalyuk, V.A., Soures, J.M., Stoeckl, C., Town, R.P.J., Whitman, M.D., Yaakobi, B., Zuegel, J.D., Petrasso, R.D., Hicks, D.G., and Li, C.K.

Published
2000
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12. Inertial confinement fusion experiments with OMEGA-A 30-kJ, 60-beam UV laser

Author

Boehly, T.R, McCrory, R.L, Verdon, C.P, Seka, W, Loucks, S.J, Babushkin, A, Bahr, R.E, Boni, R, Bradley, D.K, Craxton, R.S, Delettrez, J.A, Donaldson, W.R, Epstein, R, Harding, D, Jaanimagi, P.A, Jacobs, S.D, Kearney, K, Keck, R.L, Kelly, J.H, Kessler, T.J, Kremens, R.L, Knauer, J.P, Lonobile, D.J, Lund, L.D, Marshall, F.J, McKenty, P.W, Meyerhofer, D.D, Morse, S.F.B, Okishev, A, Papernov, S, Pien, G, Safford, T, Schnittman, J.D, Short, R, Shoup III, M.J, Skeldon, M, Skupsky, S, Schmid, A.W, Smalyuk, V.A, Smith, D.J, Soures, J.M, Wittman, M, and Yaakobi, B

Published
1999
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19. Direct-Drive Inertial Confinement Fusion Implosions on Omega

Author

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

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20. Progress towards polar-drive ignition for the NIF

Author

McCrory, R.L., primary, Betti, R., additional, Boehly, T.R., 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, Frenje, J.A., additional, Froula, D.H., additional, Gatu-Johnson, M., additional, Glebov, V.Yu., additional, Goncharov, V.N., additional, Harding, D.R., additional, Hohenberger, M., additional, Hu, S.X., additional, Igumenshchev, I.V., additional, Kessler, T.J., additional, Knauer, J.P., additional, Li, C.K., additional, Marozas, J.A., additional, Marshall, F.J., additional, McKenty, P.W., additional, Meyerhofer, D.D., additional, Michel, D.T., additional, Myatt, J.F., additional, Nilson, P.M., additional, Padalino, S.J., additional, Petrasso, R.D., additional, Radha, P.B., additional, Regan, S.P., additional, Sangster, T.C., additional, Séguin, F.H., additional, Seka, W., additional, Short, R.W., additional, Shvydky, A., additional, Skupsky, S., additional, Soures, J.M., additional, Stoeckl, C., additional, Theobald, W., additional, Yaakobi, B., additional, and Zuegel, J.D., additional

Published
2013
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21. High-performance inertial confinement fusion target implosions on OMEGA

Author

Meyerhofer, D.D., primary, McCrory, R.L., additional, Betti, R., additional, Boehly, T.R., 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, Fletcher, K.A., additional, Frenje, J.A., additional, Glebov, Y. Yu., additional, Goncharov, V.N., additional, Harding, D.R., additional, Hu, S.X., additional, Igumenshchev, I.V., additional, Knauer, J.P., additional, Li, C.K., additional, Marozas, J.A., additional, Marshall, F.J., additional, McKenty, P.W., additional, Nilson, P.M., additional, Padalino, S.P., additional, Petrasso, R.D., additional, Radha, P.B., additional, Regan, S.P., additional, Sangster, T.C., additional, Séguin, F.H., additional, Seka, W., additional, Short, R.W., additional, Shvarts, D., additional, Skupsky, S., additional, Soures, J.M., additional, Stoeckl, C., additional, Theobald, W., additional, and Yaakobi, B., additional

Published
2011
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22. Direct-drive inertial confinement fusion research at the Laboratory for Laser Energetics: charting the path to thermonuclear ignition

Author

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

Published
2005
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23. Direct-Drive Shockwave-Timing Experiments in Planar Targets

Author

Theobald, W., primary, Boehly, T.R., additional, Vianello, E., additional, Miller, J.E., additional, Craxton, R.S., additional, Goncharov, V., additional, Igumenshev, I., additional, Meyerhofer, D.D., additional, Hicks, D.G., additional, Celliers, P.M., additional, and Collins, G.W., additional

Published
2005
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24. OMEGA ICF experiments and preparation for direct drive ignition on NIF

Author

McCrory, R.L., primary, Bahr, R.E., additional, Betti, R., additional, Boehly, T.R., additional, Collins, T.J.B., additional, Craxton, R.S., additional, Delettrez, J.A., additional, Donaldson, W.R., additional, Epstein, R., additional, Frenje, J., additional, Glebov, V.Yu., additional, Goncharov, V.N., additional, Gotchev, O.V., additional, Gram, R.Q., additional, Harding, D.R., additional, Hicks, D.G., additional, Jaanimagi, P.A., additional, Keck, R.L., additional, Kelly, J.H., additional, Knauer, J.P., additional, Li, C.K., additional, Loucks, S.J., additional, Lund, L.D., additional, Marshall, F.J., additional, McKenty, P.W., additional, Meyerhofer, D.D., additional, Morse, S.F.B., additional, Petrasso, R.D., additional, Radha, P.B., additional, Regan, S.P., additional, Roberts, S., additional, Séguin, F., additional, Seka, W., additional, Skupsky, S., additional, Smalyuk, V.A., additional, Sorce, C., additional, Soures, J.M., additional, Stoeckl, C., additional, Town, R.P.J., additional, Wittman, M.D., additional, Yaakobi, B., additional, and Zuegel, J.D., additional

Published
2001
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26. Laser uniformity and hydrodynamic stability experiments at the OMEGA laser facility

Author

BOEHLY, T.R., primary, BABUSHKIN, A., additional, BRADLEY, D.K., additional, CRAXTON, R.S., additional, DELETTREZ, J.A., additional, EPSTEIN, R., additional, KESSLER, T.J., additional, KNAUER, J.P., additional, McCRORY, R.L., additional, McKENTY, P.W., additional, MEYERHOFER, D.D., additional, REGAN, S., additional, SEKA, W., additional, SKUPSKY, S., additional, SMALYUK, V.A., additional, TOWN, R.P.J., additional, and YAAKOBI, B., additional

Published
2000
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30. Initial performance results of the OMEGA laser system

Author

Boehly, T.R, primary, Brown, D.L, additional, Craxton, R.S, additional, Keck, R.L, additional, Knauer, J.P, additional, Kelly, J.H, additional, Kessler, T.J, additional, Kumpan, S.A, additional, Loucks, S.J, additional, Letzring, S.A, additional, Marshall, F.J, additional, McCrory, R.L, additional, Morse, S.F.B, additional, Seka, W, additional, Soures, J.M, additional, and Verdon, C.P, additional

Published
1997
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32. Short-wavelength-laser requirements for direct-drive ignition and gain

Author

McCrory, R.L., primary, Soures, J.M., additional, Knauer, J.P., additional, Letzring, S.A., additional, Marshall, F.J., additional, Skupsky, S., additional, Seka, W., additional, Verdon, C.P., additional, Bradley, D.K., additional, Craxton, R.S., additional, Delettrez, J.A., additional, Epstein, R., additional, Jaanimagi, P., additional, Keck, R., additional, Kessler, T., additional, Kim, H., additional, Kremens, R.L., additional, McKenty, P.W., additional, Short, R.W., additional, and Yaakobi, B., additional

Published
1993
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33. OMEGA Upgrade laser for direct-drive target experiments

Author

Soures, J.M., primary, McCrory, R.L., additional, Boehly, T.R., additional, Craxton, R.S., additional, Jacobs, S.D., additional, Kelly, J.H., additional, Kessler, T.J., additional, Knauer, J.P., additional, Kremens, R.L., additional, Kumpan, S.A., additional, Letzring, S.A., additional, Seka, W.D., additional, Short, R.W., additional, Skeldon, M.D., additional, Skupsky, S., additional, and Verdon, C.P., additional

Published
1993
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36. Modeling stimulated Brillouin scattering in the underdense corona of a direct drive inertial confinement fusion target.

Author

Myatt, J., Maximov, A.V., Seka, W., Craxton, R.S., and Short, R.W.

Subjects
BRILLOUIN scattering, ULTRASONICS, LIGHT scattering, ELECTROMAGNETIC wave scattering, MATHEMATICAL models, CORONA discharge
Abstract

Motivated by recent long scale-length single- and multiple-beam experiments conducted on LLE’s OMEGA laser system [W. Seka et al., Phys. Rev. Lett. 89, 175002 (2002)], we have simulated backward stimulated Brillouin scattering (SBS) in inhomogeneous direct drive plasmas where a critical surface is present at all times. This was achieved by adapting pF3D, a parallel, three-dimensional laser–plasma interaction code developed at the Lawrence Livermore National Laboratory [R. L. Berger et al., Phys. Plasmas 5, 4337 (1998)]. The shortcomings of the paraxial approximation, inherent in pF3D, were identified and circumvented via a practical approach that has led to an improved understanding of the experiments. The results show a qualitative agreement between the simulated and experimental SBS backscattered power reflectivity, with the conclusion that the time dependence of the SBS reflectivity is governed by target hydrodynamics and a quantitative agreement in the blue-shift in the frequency of reflected light. The simulations have also shown a sensitivity of the backscattered reflectivity to the amplitude of the specularly reflected signal of an “opposing” beam. © 2004 American Institute of Physics. [ABSTRACT FROM AUTHOR]

Published
2004
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37. Irradiation uniformity for high-compression laser-fusion experiments.

Author

Skupsky, S. and Craxton, R.S.

Subjects
*IRRADIATION, *LASER fusion, *SMOOTHING (Numerical analysis)
Abstract

Discusses the mathematical formalism of two-dimensional smoothing by spectral dispersion (SSD) with numerical calculations. Irradiation uniformity for high-compression laser-fusion experiments; Factors that affect irradiation uniformity; Levels of uniformity that can be achieved on the OMEGA laser.

Published
1999
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38. Indirect-drive radiation uniformity in tetrahedral hohlraums.

Author

Schnittman, J.D. and Craxton, R.S.

Subjects
*INERTIAL confinement fusion, *RADIATION
Abstract

Studies indirect-drive radiation uniformity in tetrahedral hohlraums, a key element in the primary route to ignition and high gain in inertial confinement fusion. Beam ports provided to accommodate direct drive; Optimization of hohlraum designs using a three-dimensional view-factor program; Irradiation uniformity obtained during implosion.

Published
1996
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39. Stimulated Brillouin scattering in long-scale-length laser plasmas.

Author

Chirokikh, A., Seka, W., Simon, A., Craxton, R.S., and Tikhonchuk, V.T.

Subjects
BRILLOUIN scattering, PLASMA gases, SPECTRUM analysis
Abstract

Investigates the Brillouin scattering from a preformed inhomogeneous expanding plasma. Details on the resolved spectra of the backscattered light; Discussion on the scattering for different plasma conditions by varying the time delay of the interaction beam; Significance of the stimulated Brillouin scattering theory.

Published
1998
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40. Laser uniformity and hydrodynamic stability experiments at the OMEGA laser facility

Author

*, T.R. BOEHLY, ‡, BABUSHKIN, A., BRADLEY, D.K., CRAXTON, R.S., DELETTREZ, J.A., EPSTEIN, R., KESSLER, T.J., KNAUER, J.P., McCRORY, R.L., McKENTY, P.W., MEYERHOFER, D.D., REGAN, S., SEKA, W., SKUPSKY, S., SMALYUK, V.A., TOWN, R.P.J., and YAAKOBI, B.

Abstract

Experiments to demonstrate the effects of various beam-smoothing techniques have been performed on the 60-beam, 30-kJ UV OMEGA laser system. These include direct measurements of the effect beam-smoothing techniques have on laser beam nonuniformity and on both planar and spherical targets. Demonstrated techniques include polarization smoothing and “dual-tripler” third-harmonic generation required for future broad bandwidth (~1 THz) smoothing by spectral dispersion (SSD). The effects of improvements in single-beam uniformity are clearly seen in the target-physics experiments, which also show the effect of the laser pulse shape on the efficacy of SSD smoothing. Saturation of the Rayleigh-Taylor (RT) growth of the broad-bandwidth features, in agreement with the Haan model (Haan, 1989), produced by laser imprinting has also been observed.

Published
2000

41. The upgrade to the OMEGA laser system.

Author

Boehly, T.R., Craxton, R.S., Hinterman, T.H., Kumpan, S.A., Letzring, S.A., McCrory, R.L., Morse, S.F.B., Seka, W., Skupsky, S., Soures, J.M., and Verdon, C.P.

Subjects
*LASERS, *LASER fusion
Abstract

Reports on the upgrade on the OMEGA laser system. Installation of a 60-beam direct-drive laser-fusion system; Presentation of the system configuration along with the status of its construction; Utilization of rod and disk amplifiers in the system.

Published
1995
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44. Characteristics of target interaction with high power UV laser radiation

Author

Yaakobi, B., primary, Boehly, T., additional, Bourke, P., additional, Conturie, Y., additional, Craxton, R.S., additional, Delettrez, J., additional, Forsyth, J.M., additional, Frankel, R.D., additional, Goldman, L.M., additional, McCrory, R.L., additional, Richardson, M.C., additional, Seka, W., additional, Shvarts, D., additional, and Soures, J.M., additional

Published
1981
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46. Progress in direct-drive inertial confinement fusion at the Laboratory for Laser Energetics

Author

Radha, P.B., primary, Betti, R., additional, Collins, T.J.B., additional, Craxton, R.S., additional, Delettrez, J.A., additional, Epstein, R., additional, Frenje, J.A., additional, Glebov, V.Yu., additional, Goncharov, V.N., additional, Harding, D.R., additional, Keck, R.L., additional, Kelly, J.H., additional, Kessler, T., additional, Li, C.K., additional, Marozas, J.A., additional, Marshall, F.J., additional, McKenty, P.W., additional, Knauer, J.P., additional, McCrory, R.L., additional, Meyerhofer, D.D., additional, Petrasso, R.D., additional, Regan, S.P., additional, Sangster, T.C., additional, Seguin, F.H., additional, Skupsky, S., additional, Smalyuk, V.A., additional, and Stoeckl, C., additional

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