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1. The impact of low-mode symmetry on inertial fusion energy output in the burning plasma state

Author

Ralph, J. E., Ross, J. S., Zylstra, A. B., Kritcher, A. L., Robey, H. F., Young, C. V., Hurricane, O. A., Pak, A., Callahan, D. A., Baker, K. L., Casey, D. T., Döppner, T., Divol, L., Hohenberger, M., Pape, S. Le, Patel, P. K., Tommasini, R., Ali, S. J., Amendt, P. A., Atherton, L. J., Bachmann, B., Bailey, D., Benedetti, L. R., Berzak Hopkins, L., Betti, R., Bhandarkar, S. D., Biener, J., Bionta, R. M., Birge, N. W., Bond, E. J., Bradley, D. K., Braun, T., Briggs, T. M., Bruhn, M. W., Celliers, P. M., Chang, B., Chapman, T., Chen, H., Choate, C., Christopherson, A. R., Clark, D. S., Crippen, J. W., Dewald, E. L., Dittrich, T. R., Edwards, M. J., Farmer, W. A., Field, J. E., Fittinghoff, D., Frenje, J., Gaffney, J., Gatu Johnson, M., Glenzer, S. H., Grim, G. P., Haan, S., Hahn, K. D., Hall, G. N., Hammel, B. A., Harte, J., Hartouni, E., Heebner, J. E., Hernandez, V. J., Herrmann, H. W., Herrmann, M. C., Hinkel, D. E., Ho, D. D., Holder, J. P., Hsing, W. W., Huang, H., Humbird, K. D., Izumi, N., Jarrott, L. C., Jeet, J., Jones, O., Kerbel, G. D., Kerr, S. M., Khan, S. F., Kilkenny, J., Kim, Y., Geppert-Kleinrath, H., Geppert-Kleinrath, V., Kong, C., Koning, J. M., Kroll, J. J., Kruse, M. K. G., Kustowski, B., Landen, O. L., Langer, S., Larson, D., Lemos, N. C., Lindl, J. D., Ma, T., MacDonald, M. J., MacGowan, B. J., Mackinnon, A. J., MacLaren, S. A., MacPhee, A. G., Marinak, M. M., Mariscal, D. A., Marley, E. V., Masse, L., Meaney, K. D., Meezan, N. B., Michel, P. A., Millot, M., Milovich, J. L., Moody, J. D., Moore, A. S., Morton, J. W., Murphy, T. J., Newman, K., Di Nicola, J.-M. G., Nikroo, A., Nora, R., Patel, M. V., Pelz, L. J., Peterson, J. L., Ping, Y., Pollock, B. B., Ratledge, M., Rice, N. G., Rinderknecht, H. G., Rosen, M., Rubery, M. S., Salmonson, J. D., Sater, J., Schiaffino, S., Schlossberg, D. J., Schneider, M. B., Schroeder, C. R., Scott, H. A., Sepke, S. M., Sequoia, K., Sherlock, M. W., Shin, S., Smalyuk, V. A., Spears, B. K., Springer, P. T., Stadermann, M., Stoupin, S., Strozzi, D. J., Suter, L. J., Thomas, C. A., Town, R. P. J., Trosseille, C., Tubman, E. R., Volegov, P. L., Weber, C. R., Widmann, K., Wild, C., Wilde, C. H., Van Wonterghem, B. M., Woods, D. T., Woodworth, B. N., Yamaguchi, M., Yang, S. T., and Zimmerman, G. B.

Published
2024
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2. Platform for Probing Radiation Transport Properties of Hydrogen at Conditions Found in the Deep Interiors of Red Dwarfs

Author

Lütgert, J., Bethkenhagen, M., Bachmann, B., Divol, L., Gericke, D. O., Glenzer, S. H., Hall, G. N., Izumi, N., Khan, S. F., Landen, O. L., MacLaren, S. A., Masse, L., Redmer, R., Schörner, M., Schölmerich, M. O., Schumacher, S., Shaffer, N. R., Starrett, C. E., Sterne, P. A., Trosseille, C., Döppner, T., and Kraus, D.

Subjects
Physics - Plasma Physics
Abstract

We describe an experimental concept at the National Ignition Facility for specifically tailored spherical implosions to compress hydrogen to extreme densities (up to $\sim$800$\times$ solid density, electron number density n$_e$$\sim$4$\times$10$^{25}$ cm$^{-3}$ ) at moderate temperatures (T$\sim$200 eV), i.e., to conditions, which are relevant to the interiors of red dwarf stars. The dense plasma will be probed by laser-generated x-ray radiation of different photon energy to determine the plasma opacity due to collisional (free-free) absorption and Thomson scattering. The obtained results will benchmark radiation transport models, which in the case for free-free absorption show strong deviations at conditions relevant to red dwarfs. This very first experimental test of free-free opacity models at these extreme states will help to constrain where inside those celestial objects energy transport is dominated by radiation or convection. Moreover, our study will inform models for other important processes in dense plasmas, which are based on electron-ion collisions, e.g., stopping of swift ions or electron-ion temperature relaxation.

Published
2023
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3. Experiments conducted in the burning plasma regime with inertial fusion implosions

Author

Ross, J. S., Ralph, J. E., Zylstra, A. B., Kritcher, A. L., Robey, H. F., Young, C. V., Hurricane, O. A., Callahan, D. A., Baker, K. L., Casey, D. T., Doeppner, T., Divol, L., Hohenberger, M., Pape, S. Le, Pak, A., Patel, P. K., Tommasini, R., Ali, S. J., Amendt, P. A., Atherton, L. J., Bachmann, B., Bailey, D., Benedetti, L. R., Hopkins, L. Berzak, Betti, R., Bhandarkar, S. D., Bionta, R. M., Birge, N. W., Bond, E. J., Bradley, D. K., Braun, T., Briggs, T. M., Bruhn, M. W., Celliers, P. M., Chang, B., Chapman, T., Chen, H., Choate, C., Christopherson, A. R., Clark, D. S., Crippen, J. W., Dewald, E. L., Dittrich, T. R., Edwards, M. J., Farmer, W. A., Field, J. E., Fittinghoff, D., Frenje, J., Gaffney, J., Johnson, M. Gatu, Glenzer, S. H., Grim, G. P., Haan, S., Hahn, K. D., Hall, G. N., Hammel, B. A., Harte, J., Hartouni, E., Heebner, J. E., Hernandez, V. J., Herrmann, H., Herrmann, M. C., Hinkel, D. E., Ho, D. D., Holder, J. P., Hsing, W. W., Huang, H., Humbird, K. D., Izumi, N., Jarrott, L. C., Jeet, J., Jones, O., Kerbel, G. D., Kerr, S. M., Khan, S. F., Kilkenny, J., Kim, Y., Kleinrath, H. Geppert, Kleinrath, V. Geppert, Kong, C., Koning, J. M., Kroll, J. J., Landen, O. L., Langer, S., Larson, D., Lemos, N. C., Lindl, J. D., Ma, T., MacDonald, M. J., MacGowan, B. J., Mackinnon, A. J., MacLaren, S. A., MacPhee, A. G., Marinak, M. M., Mariscal, D. A., Marley, E. V., Masse, L., Meaney, K., Meezan, N. B., Michel, P. A., Millot, M., Milovich, J. L., Moody, J. D., Moore, A. S., Morton, J. W., Murphy, T., Newman, K., Di Nicola, J. -M. G., Nikroo, A., Nora, R., Patel, M. V., Pelz, L. J., Peterson, J. L., Ping, Y., Pollock, B. B., Ratledge, M., Rice, N. G., Rinderknecht, H., Rosen, M., Rubery, M. S., Salmonson, J. D., Sater, J., Schiaffino, S., Schlossberg, D. J., Schneider, M. B., Schroeder, C. R., Scott, H. A., Sepke, S. M., Sequoia, K., Sherlock, M. W., Shin, S., Smalyuk, V. A., Spears, B. K., Springer, P. T., Stadermann, M., Stoupin, S., Strozzi, D. J., Suter, L. J., Thomas, C. A., Town, R. P. J., Tubman, E. R., Volegov, P. L., Weber, C. R., Widmann, K., Wild, C., Wilde, C. H., Van Wonterghem, B. M., Woods, D. T., Woodworth, B. N., Yamaguchi, M., Yang, S. T., and Zimmerman, G. B.

Subjects
Physics - Plasma Physics, High Energy Physics - Experiment
Abstract

An experimental program is currently underway at the National Ignition Facility (NIF) to compress deuterium and tritium (DT) fuel to densities and temperatures sufficient to achieve fusion and energy gain. The primary approach being investigated is indirect drive inertial confinement fusion (ICF), where a high-Z radiation cavity (a hohlraum) is heated by lasers, converting the incident energy into x-ray radiation which in turn drives the DT fuel filled capsule causing it to implode. Previous experiments reported DT fuel gain exceeding unity [O.A. Hurricane et al., Nature 506, 343 (2014)] and then exceeding the kinetic energy of the imploding fuel [S. Le Pape et al., Phys. Rev. Lett. 120, 245003 (2018)]. We report on recent experiments that have achieved record fusion neutron yields on NIF, greater than 100 kJ with momentary fusion powers exceeding 1PW, and have for the first time entered the burning plasma regime where fusion alpha-heating of the fuel exceeds the energy delivered to the fuel via compression. This was accomplished by increasing the size of the high-density carbon (HDC) capsule, increasing energy coupling, while controlling symmetry and implosion design parameters. Two tactics were successful in controlling the radiation flux symmetry and therefore the implosion symmetry: transferring energy between laser cones via plasma waves, and changing the shape of the hohlraum. In conducting these experiments, we controlled for known sources of degradation. Herein we show how these experiments were performed to produce record performance, and demonstrate the data fidelity leading us to conclude that these shots have entered the burning plasma regime.

Published
2021

4. Design of inertial fusion implosions reaching the burning plasma regime

Author

Kritcher, A. L., Young, C. V., Robey, H. F., Weber, C. R., Zylstra, A. B., Hurricane, O. A., Callahan, D. A., Ralph, J. E., Ross, J. S., Baker, K. L., Casey, D. T., Clark, D. S., Döppner, T., Divol, L., Hohenberger, M., Hopkins, L. Berzak, Le Pape, S., Meezan, N. B., Pak, A., Patel, P. K., Tommasini, R., Ali, S. J., Amendt, P. A., Atherton, L. J., Bachmann, B., Bailey, D., Benedetti, L. R., Betti, R., Bhandarkar, S. D., Biener, J., Bionta, R. M., Birge, N. W., Bond, E. J., Bradley, D. K., Braun, T., Briggs, T. M., Bruhn, M. W., Celliers, P. M., Chang, B., Chapman, T., Chen, H., Choate, C., Christopherson, A. R., Crippen, J. W., Dewald, E. L., Dittrich, T. R., Edwards, M. J., Farmer, W. A., Field, J. E., Fittinghoff, D., Frenje, J. A., Gaffney, J. A., Johnson, M. Gatu, Glenzer, S. H., Grim, G. P., Haan, S., Hahn, K. D., Hall, G. N., Hammel, B. A., Harte, J., Hartouni, E., Heebner, J. E., Hernandez, V. J., Herrmann, H., Herrmann, M. C., Hinkel, D. E., Ho, D. D., Holder, J. P., Hsing, W. W., Huang, H., Humbird, K. D., Izumi, N., Jarrott, L. C., Jeet, J., Jones, O., Kerbel, G. D., Kerr, S. M., Khan, S. F., Kilkenny, J., Kim, Y., Geppert-Kleinrath, H., Geppert-Kleinrath, V., Kong, C., Koning, J. M., Kruse, M. K. G., Kroll, J. J., Kustowski, B., Landen, O. L., Langer, S., Larson, D., Lemos, N. C., Lindl, J. D., Ma, T., MacDonald, M. J., MacGowan, B. J., Mackinnon, A. J., MacLaren, S. A., MacPhee, A. G., Marinak, M. M., Mariscal, D. A., Marley, E. V., Masse, L., Meaney, K., Michel, P. A., Millot, M., Milovich, J. L., Moody, J. D., Moore, A. S., Morton, J. W., Murphy, T., Newman, K., Di Nicola, J.-M. G., Nikroo, A., Nora, R., Patel, M. V., Pelz, L. J., Peterson, J. L., Ping, Y., Pollock, B. B., Ratledge, M., Rice, N. G., Rinderknecht, H., Rosen, M., Rubery, M. S., Salmonson, J. D., Sater, J., Schiaffino, S., Schlossberg, D. J., Schneider, M. B., Schroeder, C. R., Scott, H. A., Sepke, S. M., Sequoia, K., Sherlock, M. W., Shin, S., Smalyuk, V. A., Spears, B. K., Springer, P. T., Stadermann, M., Stoupin, S., Strozzi, D. J., Suter, L. J., Thomas, C. A., Town, R. P. J., Trosseille, C., Tubman, E. R., Volegov, P. L., Widmann, K., Wild, C., Wilde, C. H., Van Wonterghem, B. M., Woods, D. T., Woodworth, B. N., Yamaguchi, M., Yang, S. T., and Zimmerman, G. B.

Published
2022
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5. Burning plasma achieved in inertial fusion

Author

Zylstra, A. B., Hurricane, O. A., Callahan, D. A., Kritcher, A. L., Ralph, J. E., Robey, H. F., Ross, J. S., Young, C. V., Baker, K. L., Casey, D. T., Döppner, T., Divol, L., Hohenberger, M., Le Pape, S., Pak, A., Patel, P. K., Tommasini, R., Ali, S. J., Amendt, P. A., Atherton, L. J., Bachmann, B., Bailey, D., Benedetti, L. R., Berzak Hopkins, L., Betti, R., Bhandarkar, S. D., Biener, J., Bionta, R. M., Birge, N. W., Bond, E. J., Bradley, D. K., Braun, T., Briggs, T. M., Bruhn, M. W., Celliers, P. M., Chang, B., Chapman, T., Chen, H., Choate, C., Christopherson, A. R., Clark, D. S., Crippen, J. W., Dewald, E. L., Dittrich, T. R., Edwards, M. J., Farmer, W. A., Field, J. E., Fittinghoff, D., Frenje, J., Gaffney, J., Gatu Johnson, M., Glenzer, S. H., Grim, G. P., Haan, S., Hahn, K. D., Hall, G. N., Hammel, B. A., Harte, J., Hartouni, E., Heebner, J. E., Hernandez, V. J., Herrmann, H., Herrmann, M. C., Hinkel, D. E., Ho, D. D., Holder, J. P., Hsing, W. W., Huang, H., Humbird, K. D., Izumi, N., Jarrott, L. C., Jeet, J., Jones, O., Kerbel, G. D., Kerr, S. M., Khan, S. F., Kilkenny, J., Kim, Y., Geppert Kleinrath, H., Geppert Kleinrath, V., Kong, C., Koning, J. M., Kroll, J. J., Kruse, M. K. G., Kustowski, B., Landen, O. L., Langer, S., Larson, D., Lemos, N. C., Lindl, J. D., Ma, T., MacDonald, M. J., MacGowan, B. J., Mackinnon, A. J., MacLaren, S. A., MacPhee, A. G., Marinak, M. M., Mariscal, D. A., Marley, E. V., Masse, L., Meaney, K., Meezan, N. B., Michel, P. A., Millot, M., Milovich, J. L., Moody, J. D., Moore, A. S., Morton, J. W., Murphy, T., Newman, K., Di Nicola, J.-M. G., Nikroo, A., Nora, R., Patel, M. V., Pelz, L. J., Peterson, J. L., Ping, Y., Pollock, B. B., Ratledge, M., Rice, N. G., Rinderknecht, H., Rosen, M., Rubery, M. S., Salmonson, J. D., Sater, J., Schiaffino, S., Schlossberg, D. J., Schneider, M. B., Schroeder, C. R., Scott, H. A., Sepke, S. M., Sequoia, K., Sherlock, M. W., Shin, S., Smalyuk, V. A., Spears, B. K., Springer, P. T., Stadermann, M., Stoupin, S., Strozzi, D. J., Suter, L. J., Thomas, C. A., Town, R. P. J., Tubman, E. R., Trosseille, C., Volegov, P. L., Weber, C. R., Widmann, K., Wild, C., Wilde, C. H., Van Wonterghem, B. M., Woods, D. T., Woodworth, B. N., Yamaguchi, M., Yang, S. T., and Zimmerman, G. B.

Published
2022
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6. Bow shock fragmentation driven by a thermal instability in laboratory-astrophysics experiments

Author

Suzuki-Vidal, F., Lebedev, S. V., Ciardi, A., Pickworth, L. A., Rodriguez, R., Gil, J. M., Espinosa, G., Hartigan, P., Swadling, G. F., Skidmore, J., Hall, G. N., Bennett, M., Bland, S. N., Burdiak, G., de Grouchy, P., Music, J., Suttle, L., Hansen, E., and Frank, A.

Subjects
Physics - Plasma Physics, J.2.1, J.2.9
Abstract

The role of radiative cooling during the evolution of a bow shock was studied in laboratory-astrophysics experiments that are scalable to bow shocks present in jets from young stellar objects. The laboratory bow shock is formed during the collision of two counter-streaming, supersonic plasma jets produced by an opposing pair of radial foil Z-pinches driven by the current pulse from the MAGPIE pulsed-power generator. The jets have different flow velocities in the laboratory frame and the experiments are driven over many times the characteristic cooling time-scale. The initially smooth bow shock rapidly develops small-scale non-uniformities over temporal and spatial scales that are consistent with a thermal instability triggered by strong radiative cooling in the shock. The growth of these perturbations eventually results in a global fragmentation of the bow shock front. The formation of a thermal instability is supported by analysis of the plasma cooling function calculated for the experimental conditions with the radiative packages ABAKO/RAPCAL., Comment: 9 pages, 5 figures, Accepted for publication in The Astrophysical Journal on 5th November 2015

Published
2015
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7. Measurement of mix at the fuel–ablator interface in indirectly driven capsule implosions on the National Ignition Facility

Author

Hall, G. N., primary, Weber, C. R., additional, Smalyuk, V. A., additional, Landen, O. L., additional, Trosseille, C., additional, Pak, A., additional, Hartouni, E., additional, Marley, E., additional, Ebert, T., additional, Bradley, D. K., additional, Hsing, W., additional, Tommasini, R., additional, Izumi, N., additional, Pape, S. Le, additional, Divol, L., additional, Krauland, C. M., additional, Thompson, N., additional, Casco, E. R., additional, Ayers, M. J., additional, Nagel, S. R., additional, Carpenter, A. C., additional, Hurd, E. R., additional, Dayton, M. S., additional, Engelhorn, K., additional, and Holder, J. P., additional

Published
2024
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8. Analysis and mitigation of an oscillating background on hybrid complementary metal-oxide semiconductor (hCMOS) imaging sensors at the National Ignition Facility

Author

Hassard, B. R., primary, Dayton, M. S., additional, Trosseille, C., additional, Benedetti, L. R., additional, Chen, H., additional, Döppner, T., additional, Durand, C. E., additional, Hall, G. N., additional, Morioka, S. B., additional, Nyholm, P. R., additional, Ping, Y., additional, Sharp, A., additional, Carpenter, A. C., additional, and Nagel, S. R., additional

Published
2023
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9. Numerical study of jets produced by conical wire arrays on the Magpie pulsed power generator

Author

Bocchi, M., Chittenden, J. P., Ciardi, A., Suzuki-Vidal, F., Hall, G. N., de Grouchy, P., Lebedev, S. V., and Bott, S. C.

Subjects
Physics - Plasma Physics
Abstract

The aim of this work is to model the jets produced by conical wire arrays on the MAGPIE generator, and to design and test new setups to strengthen the link between laboratory and astrophysical jets. We performed the modelling with direct three-dimensional magneto-hydro-dynamic numerical simulations using the code GORGON. We applied our code to the typical MAGPIE setup and we successfully reproduced the experiments. We found that a minimum resolution of approximately 100 is required to retrieve the unstable character of the jet. We investigated the effect of changing the number of wires and found that arrays with less wires produce more unstable jets, and that this effect has magnetic origin. Finally, we studied the behaviour of the conical array together with a conical shield on top of it to reduce the presence of unwanted low density plasma flows. The resulting jet is shorter and less dense., Comment: Accepted for publication in Astrophysics & Space Science. HEDLA 2010 conference procedings. Final pubblication will be available on Springer

Published
2011
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10. Experimental Studies of Magnetically Driven Plasma Jets

Author

Suzuki-Vidal, F., Lebedev, S. V., Bland, S. N., Hall, G. N., Swadling, G., Harvey-Thompson, A. J., Burdiak, G., de Grouchy, P., Chittenden, J. P., Marocchino, A., Bocchi, M., Ciardi, A., Frank, A., and Bott, S. C.

Subjects
Astrophysics - Solar and Stellar Astrophysics, Physics - Plasma Physics
Abstract

We present experimental results on the formation of supersonic, radiatively cooled jets driven by pressure due to the toroidal magnetic field generated by the 1.5 MA, 250 ns current from the MAGPIE generator. The morphology of the jet produced in the experiments is relevant to astrophysical jet scenarios in which a jet on the axis of a magnetic cavity is collimated by a toroidal magnetic field as it expands into the ambient medium. The jets in the experiments have similar Mach number, plasma beta and cooling parameter to those in protostellar jets. Additionally the Reynolds, magnetic Reynolds and Peclet numbers are much larger than unity, allowing the experiments to be scaled to astrophysical flows. The experimental configuration allows for the generation of episodic magnetic cavities, suggesting that periodic fluctuations near the source may be responsible for some of the variability observed in astrophysical jets. Preliminary measurements of kinetic, magnetic and Poynting energy of the jets in our experiments are presented and discussed, together with estimates of their temperature and trapped toroidal magnetic field., Comment: 7 pages, 6 figures, accepted for publication in Astrophysics & Space Science

Published
2010
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11. Formation of Episodic Magnetically Driven Radiatively Cooled Plasma Jets in the Laboratory

Author

Suzuki-Vidal, F., Lebedev, S. V., Ciardi, A., Bland, S. N., Chittenden, J. P., Hall, G. N., Harvey-Thompson, A., Marocchino, A., Ning, C., Stehle, C., Frank, A., Blackman, E. G., Bott, S. C., and Ray, T.

Subjects
Astrophysics - Solar and Stellar Astrophysics, Physics - Plasma Physics
Abstract

We report on experiments in which magnetically driven radiatively cooled plasma jets were produced by a 1 MA, 250 ns current pulse on the MAGPIE pulsed power facility. The jets were driven by the pressure of a toroidal magnetic field in a ''magnetic tower'' jet configuration. This scenario is characterized by the formation of a magnetically collimated plasma jet on the axis of a magnetic ''bubble'', confined by the ambient medium. The use of a radial metallic foil instead of the radial wire arrays employed in our previous work allows for the generation of episodic magnetic tower outflows which emerge periodically on timescales of ~30 ns. The subsequent magnetic bubbles propagate with velocities reaching ~300 km/s and interact with previous eruptions leading to the formation of shocks., Comment: 6 pages, 5 figures. Accepted for publication in Astrophysics & Space Science

Published
2009
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12. Measurements of improved stability to achieve higher fuel compression in ICF

Author

Do, A., primary, Casey, D. T., additional, Clark, D. S., additional, Bachmann, B., additional, Baker, K. L., additional, Braun, T., additional, Briggs, T. M., additional, Chapman, T. D, additional, Celliers, P. M., additional, Chen, H., additional, Choate, C., additional, Dewald, E. L., additional, Divol, L., additional, Fathi, G., additional, Fittinghoff, D. N., additional, Hall, G. N., additional, Hartouni, E., additional, Holunga, D. M., additional, Khan, S. F., additional, Kritcher, A. L., additional, Landen, O. L., additional, MacPhee, A. G., additional, Millot, M., additional, Marley, E. V., additional, Milovich, J. L., additional, Nikroo, A., additional, Pak, A. E., additional, Schlossberg, D. J., additional, Smalyuk, V. A., additional, Stadermann, M., additional, Strozzi, D. J., additional, Tommasini, R., additional, Weber, C. R., additional, Woodworth, B. N., additional, Yanagisawa, D. K., additional, Birge, N. W., additional, Danly, C. R., additional, Durocher, M., additional, Freeman, M. S., additional, Geppert-Kleinrath, H., additional, Geppert-Kleinrath, V., additional, Kim, Y., additional, Meaney, K. D, additional, Wilde, C. H., additional, Johnson, M. Gatu, additional, Allen, A., additional, Ratledge, M., additional, Kong, C., additional, Fehrenbach, T., additional, and Wild, C., additional

Published
2023
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13. Supersonic radiatively cooled rotating flows and jets in the laboratory

Author

Ampleford, D. J., Lebedev, S. V., Ciardi, A., Bland, S. N., Bott, S. C., Hall, G. N., Naz, N., Jennings, C. A., Sherlock, M., Chittenden, J. P., Palmer, J. B. A., Frank, A., and Blackman, E.

Subjects
Astrophysics
Abstract

The first laboratory astrophysics experiments to produce a radiatively cooled plasma jet with dynamically significant angular momentum are discussed. A new configuration of wire array z-pinch, the twisted conical wire array, is used to produce convergent plasma flows each rotating about the central axis. Collision of the flows produces a standing shock and jet that each have supersonic azimuthal velocities. By varying the twist angle of the array, the rotation velocity of the system can be controlled, with jet rotation velocities reaching ~20% of the propagation velocity., Comment: Accepted for publication in Physical Review Letters (16 pages, 5 figures)

Published
2007
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14. The evolution of magnetic tower jets in the laboratory

Author

Ciardi, A., Lebedev, S. V., Frank, A., Blackman, E. G., Chittenden, J. P., Jennings, C. J., Ampleford, D. J., Bland, S. N., Bott, S. C., Rapley, J., Hall, G. N., Suzuki-Vidal, F. A., Marocchino, A., Lery, T., and Stehle, C.

Subjects
Astrophysics
Abstract

The evolution of laboratory produced magnetic jets is followed numerically through three-dimensional, non-ideal magnetohydrodynamic simulations. The experiments are designed to study the interaction of a purely toroidal field with an extended plasma background medium. The system is observed to evolve into a structure consisting of an approximately cylindrical magnetic cavity with an embedded magnetically confined jet on its axis. The supersonic expansion produces a shell of swept-up shocked plasma which surrounds and partially confines the magnetic tower. Currents initially flow along the walls of the cavity and in the jet but the development of current-driven instabilities leads to the disruption of the jet and a re-arrangement of the field and currents. The top of the cavity breaks-up and a well collimated, radiatively cooled, 'clumpy' jet emerges from the system., Comment: 34 Pages, 10 Figure, Accepted for publication in Physics of Plasmas

Published
2006
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15. 3D MHD Simulations of Laboratory Plasma Jets

Author

Ciardi, A., Lebedev, S. V., Frank, A., Blackman, E. G., Ampleford, D. J., Jennings, C. A., Chittenden, J. P., Lery, T., Bland, S. N., Bott, S. C., Hall, G. N., Rapley, J., Vidal, F. A. Suzuki, and Marocchino, A.

Subjects
Astrophysics
Abstract

Jets and outflows are thought to be an integral part of accretion phenomena and are associated with a large variety of objects. In these systems, the interaction of magnetic fields with an accretion disk and/or a magnetized central object is thought to be responsible for the acceleration and collimation of plasma into jets and wider angle flows. In this paper we present three-dimensional MHD simulations of magnetically driven, radiatively cooled laboratory jets that are produced on the MAGPIE experimental facility. The general outflow structure comprises an expanding magnetic cavity which is collimated by the pressure of an extended plasma background medium, and a magnetically confined jet which develops within the magnetic cavity. Although this structure is intrinsically transient and instabilities in the jet and disruption of the magnetic cavity ultimately lead to its break-up, a well collimated, knotty jet still emerges from the system; such clumpy morphology is reminiscent of that observed in many astrophysical jets. The possible introduction in the experiments of angular momentum and axial magnetic field will also be discussed., Comment: 15 pages, 4 figures, accepted by Astrophysics and Space Science for Special Issue High Energy Density Laboratory Astrophysics Conference

Published
2006
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16. Publisher Correction: Burning plasma achieved in inertial fusion

Author

Zylstra, A. B., Hurricane, O. A., Callahan, D. A., Kritcher, A. L., Ralph, J. E., Robey, H. F., Ross, J. S., Young, C. V., Baker, K. L., Casey, D. T., Döppner, T., Divol, L., Hohenberger, M., Le Pape, S., Pak, A., Patel, P. K., Tommasini, R., Ali, S. J., Amendt, P. A., Atherton, L. J., Bachmann, B., Bailey, D., Benedetti, L. R., Berzak Hopkins, L., Betti, R., Bhandarkar, S. D., Biener, J., Bionta, R. M., Birge, N. W., Bond, E. J., Bradley, D. K., Braun, T., Briggs, T. M., Bruhn, M. W., Celliers, P. M., Chang, B., Chapman, T., Chen, H., Choate, C., Christopherson, A. R., Clark, D. S., Crippen, J. W., Dewald, E. L., Dittrich, T. R., Edwards, M. J., Farmer, W. A., Field, J. E., Fittinghoff, D., Frenje, J., Gaffney, J., Gatu Johnson, M., Glenzer, S. H., Grim, G. P., Haan, S., Hahn, K. D., Hall, G. N., Hammel, B. A., Harte, J., Hartouni, E., Heebner, J. E., Hernandez, V. J., Herrmann, H., Herrmann, M. C., Hinkel, D. E., Ho, D. D., Holder, J. P., Hsing, W. W., Huang, H., Humbird, K. D., Izumi, N., Jarrott, L. C., Jeet, J., Jones, O., Kerbel, G. D., Kerr, S. M., Khan, S. F., Kilkenny, J., Kim, Y., Geppert Kleinrath, H., Geppert Kleinrath, V., Kong, C., Koning, J. M., Kroll, J. J., Kruse, M. K. G., Kustowski, B., Landen, O. L., Langer, S., Larson, D., Lemos, N. C., Lindl, J. D., Ma, T., MacDonald, M. J., MacGowan, B. J., Mackinnon, A. J., MacLaren, S. A., MacPhee, A. G., Marinak, M. M., Mariscal, D. A., Marley, E. V., Masse, L., Meaney, K., Meezan, N. B., Michel, P. A., Millot, M., Milovich, J. L., Moody, J. D., Moore, A. S., Morton, J. W., Murphy, T., Newman, K., Di Nicola, J.-M. G., Nikroo, A., Nora, R., Patel, M. V., Pelz, L. J., Peterson, J. L., Ping, Y., Pollock, B. B., Ratledge, M., Rice, N. G., Rinderknecht, H., Rosen, M., Rubery, M. S., Salmonson, J. D., Sater, J., Schiaffino, S., Schlossberg, D. J., Schneider, M. B., Schroeder, C. R., Scott, H. A., Sepke, S. M., Sequoia, K., Sherlock, M. W., Shin, S., Smalyuk, V. A., Spears, B. K., Springer, P. T., Stadermann, M., Stoupin, S., Strozzi, D. J., Suter, L. J., Thomas, C. A., Town, R. P. J., Tubman, E. R., Trosseille, C., Volegov, P. L., Weber, C. R., Widmann, K., Wild, C., Wilde, C. H., Van Wonterghem, B. M., Woods, D. T., Woodworth, B. N., Yamaguchi, M., Yang, S. T., and Zimmerman, G. B.

Published
2022
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18. Measuring and simulating ice–ablator mix in inertial confinement fusion

Author

Bachmann, B., primary, MacLaren, S. A., additional, Masse, L., additional, Bhandarkar, S., additional, Briggs, T., additional, Casey, D., additional, Divol, L., additional, Döppner, T., additional, Fittinghoff, D., additional, Freeman, M., additional, Haan, S., additional, Hall, G. N., additional, Hammel, B., additional, Hartouni, E., additional, Izumi, N., additional, Geppert-Kleinrath, V., additional, Khan, S., additional, Kozioziemski, B., additional, Krauland, C., additional, Landen, O., additional, Mariscal, D., additional, Marley, E., additional, Meaney, K., additional, Mellos, G., additional, Moore, A., additional, Pak, A., additional, Patel, P., additional, Ratledge, M., additional, Rice, N., additional, Rubery, M., additional, Salmonson, J., additional, Sater, J., additional, Schlossberg, D., additional, Schneider, M., additional, Smalyuk, V. A., additional, Trosseille, C., additional, Volegov, P., additional, Weber, C., additional, Williams, G. J., additional, and Wray, A., additional

Published
2023
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19. Publisher's Note: “First graded metal pushered single shell capsule implosions on the National Ignition Facility” [Phys. Plasmas 29, 052707 (2022)]

Author

Dewald, E. L., primary, MacLaren, S. A., additional, Martinez, D. A., additional, Pino, J. E., additional, Tipton, R. E., additional, Ho, D. D.-M., additional, Young, C. V., additional, Horwood, C., additional, Khan, S. F., additional, Hartouni, E. P., additional, Rubery, M. S., additional, Millot, M., additional, Vazsonyi, A. R., additional, Vonhof, S., additional, Mellos, G., additional, Johnson, S., additional, Smalyuk, V. A., additional, Graziani, F., additional, Monzon, E. R., additional, Tommasini, R., additional, Alessi, D., additional, Ayers, S., additional, Hall, G. N., additional, Holder, J., additional, Kalantar, D., additional, MacKinnon, A. J., additional, Okui, J., additional, Prantil, M., additional, Di Nicola, J.-M., additional, Lanier, T., additional, Thomas, A., additional, Yang, S., additional, Xu, H. W., additional, Huang, H., additional, Bae, J., additional, Kong, C. W., additional, Rice, N., additional, Wang, Y. M., additional, Volegov, P., additional, Freeman, M. S., additional, and Wilde, C., additional

Published
2023
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20. Measurement of Dark Ice-Ablator Mix in Inertial Confinement Fusion

Author

Bachmann, B., primary, MacLaren, S. A., additional, Bhandarkar, S., additional, Briggs, T., additional, Casey, D., additional, Divol, L., additional, Döppner, T., additional, Fittinghoff, D., additional, Freeman, M., additional, Haan, S., additional, Hall, G. N., additional, Hammel, B., additional, Hartouni, E., additional, Izumi, N., additional, Geppert-Kleinrath, V., additional, Khan, S., additional, Kozioziemski, B., additional, Krauland, C., additional, Landen, O., additional, Mariscal, D., additional, Marley, E., additional, Masse, L., additional, Meaney, K., additional, Mellos, G., additional, Moore, A., additional, Pak, A., additional, Patel, P., additional, Ratledge, M., additional, Rice, N., additional, Rubery, M., additional, Salmonson, J., additional, Sater, J., additional, Schlossberg, D., additional, Schneider, M., additional, Smalyuk, V. A., additional, Trosseille, C., additional, Volegov, P., additional, Weber, C., additional, Williams, G. J., additional, and Wray, A., additional

Published
2022
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21. Optimized x-ray emission from 10 ns long germanium x-ray sources at the National Ignition Facility

Author

Werellapatha, K., primary, Hall, G. N., additional, Krauland, C., additional, Krygier, A., additional, Bhandarkar, N., additional, Bradley, D. K., additional, Coppari, F., additional, Gorman, M. G., additional, Heinbockel, C., additional, Kemp, G. E., additional, Khan, S. F., additional, Lazicki, A., additional, Masters, N., additional, May, M. J., additional, Nagel, S. R., additional, Palmer, N. E., additional, Eggert, J. H., additional, and Benedetti, L. R., additional

Published
2022
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22. Publisher's Note: “Platform for probing radiation transport properties of hydrogen at conditions found in the deep interiors of red dwarfs” [Phys. Plasmas 29, 083301 (2022)]

Author

Lütgert, J., primary, Bethkenhagen, M., additional, Bachmann, B., additional, Divol, L., additional, Gericke, D. O., additional, Glenzer, S. H., additional, Hall, G. N., additional, Izumi, N., additional, Khan, S. F., additional, Landen, O. L., additional, MacLaren, S. A., additional, Masse, L., additional, Redmer, R., additional, Schörner, M., additional, Schölmerich, M. O., additional, Schumacher, S., additional, Shaffer, N. R., additional, Starrett, C. E., additional, Sterne, P. A., additional, Trosseille, C., additional, Döppner, T., additional, and Kraus, D., additional

Published
2022
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23. 3D MHD Simulations of Laboratory Plasma Jets

Author

Ciardi, A., Lebedev, S.V., Frank, A., Blackman, E. G., Ampleford, D. J., Jennings, C. A., Chittenden, J. P., Lery, T., Bland, S. N., Bott, S. C., Hall, G. N., Rapley, J., Suzuki Vidal, F. A., Marocchino, A., and Lebedev, Sergey V., editor

Published
2007
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26. Platform for probing radiation transport properties of hydrogen at conditions found in the deep interiors of red dwarfs

Author

Lütgert, J., primary, Bethkenhagen, M., additional, Bachmann, B., additional, Divol, L., additional, Gericke, D. O., additional, Glenzer, S. H., additional, Hall, G. N., additional, Izumi, N., additional, Khan, S. F., additional, Landen, O. L., additional, MacLaren, S. A., additional, Masse, L., additional, Redmer, R., additional, Schörner, M., additional, Schölmerich, M. O., additional, Schumacher, S., additional, Shaffer, N. R., additional, Starrett, C. E., additional, Sterne, P. A., additional, Trosseille, C., additional, Döppner, T., additional, and Kraus, D., additional

Published
2022
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27. Platform for Probing Radiation Transport Properties of Hydrogen at Conditions Found in the Deep Interiors of Red Dwarfs

Author

(0000-0002-2593-573X) Lütgert, B. J., Bethkenhagen, M., Bachmann, B., Divol, L., Gericke, D. O., Glenzer, S. H., Hall, G. N., Izumi, N., Khan, S. F., Landen, O. L., Maclaren, S. A., Masse, L., Redmer, R., Schörner, M., Schölmerich, M. O., Schumacher, S., Shaffer, N. R., Starrett, C. E., Sterne, P. A., Döppner, T., (0000-0002-6350-4180) Kraus, D., (0000-0002-2593-573X) Lütgert, B. J., Bethkenhagen, M., Bachmann, B., Divol, L., Gericke, D. O., Glenzer, S. H., Hall, G. N., Izumi, N., Khan, S. F., Landen, O. L., Maclaren, S. A., Masse, L., Redmer, R., Schörner, M., Schölmerich, M. O., Schumacher, S., Shaffer, N. R., Starrett, C. E., Sterne, P. A., Döppner, T., and (0000-0002-6350-4180) Kraus, D.

Abstract

We describe an experimental concept at the National Ignition Facility for specifically tailored spherical im- plosions to compress hydrogen to extreme densities (up to ∼ 800× solid density, electron number density ne ∼ 4 × 10^25 cm−3) at moderate temperatures (T ∼ 200 eV), i.e. to conditions, which are relevant to the interiors of red dwarf stars. The dense plasma will be probed by laser-generated X-ray radiation of differ- ent photon energy to determine the plasma opacity due to collisional (free-free) absorption and Thomson scattering. The obtained results will benchmark radiation transport models, which in the case for free-free absorption show strong deviations at conditions relevant to red dwarfs. This very first experimental test of free-free opacity models at these extreme states will help to constrain where inside those celestial objects energy transport is dominated by radiation or convection. Moreover, our study will inform models for other important processes in dense plasmas, which are based on electron-ion collisions, e.g. stopping of swift ions or electron-ion temperature relaxation.

Published
2022

29. Long-Duration X-Ray Source Development for X-Ray Diffraction at The National Ignition Facility

Author

Werellapatha, K., primary, Hall, G. N., additional, Coppari, F., additional, Kemp, G. E., additional, Krygier, A., additional, Palmer, N. E., additional, Krauland, C., additional, Khan, S. F., additional, Lazicki, A., additional, Gorman, M. G., additional, Nagel, S. R., additional, Heinbockel, C., additional, Bhandarkar, N., additional, Masters, N., additional, Bradley, D. K., additional, Eggert, J.H., additional, and Benedetti, L. R., additional

Published
2021
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33. Formation of episodic magnetically driven radiatively cooled plasma jets in the laboratory

Author

Suzuki-Vidal, F., primary, Lebedev, S. V., additional, Ciardi, A., additional, Bland, S. N., additional, Chittenden, J. P., additional, Hall, G. N., additional, Harvey-Thompson, A., additional, Marocchino, A., additional, Ning, C., additional, Stehle, C., additional, Frank, A., additional, Blackman, E. G., additional, Bott, S. C., additional, and Ray, T., additional

Published
2009
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34. Time-Resolved Fuel Density Profiles of the Stagnation Phase of Indirect-Drive Inertial Confinement Implosions

Author

Tommasini, Riccardo, primary, Landen, O. L., additional, Berzak Hopkins, L., additional, Hatchett, S. P., additional, Kalantar, D. H., additional, Hsing, W. W., additional, Alessi, D. A., additional, Ayers, S. L., additional, Bhandarkar, S. D., additional, Bowers, M. W., additional, Bradley, D. K., additional, Conder, A. D., additional, Di Nicola, J. M., additional, Di Nicola, P., additional, Divol, L., additional, Fittinghoff, D., additional, Gururangan, G., additional, Hall, G. N., additional, Hamamoto, M., additional, Hargrove, D. R., additional, Hartouni, E. P., additional, Heebner, J. E., additional, Herriot, S. I., additional, Hermann, M. R., additional, Holder, J. P., additional, Holunga, D. M., additional, Homoelle, D., additional, Iglesias, C. A., additional, Izumi, N., additional, Kemp, A. J., additional, Kohut, T., additional, Kroll, J. J., additional, LaFortune, K., additional, Lawson, J. K., additional, Lowe-Webb, R., additional, MacKinnon, A. J., additional, Martinez, D., additional, Masters, N. D., additional, Mauldin, M. P., additional, Milovich, J., additional, Nikroo, A., additional, Okui, J. K., additional, Park, J., additional, Prantil, M., additional, Pelz, L. J., additional, Schoff, M., additional, Sigurdsson, R., additional, Volegov, P. L., additional, Vonhof, S., additional, Zobrist, T. L., additional, Wallace, R. J., additional, Walters, C. F., additional, Wegner, P., additional, Widmayer, C., additional, Williams, W. H., additional, Youngblood, K., additional, Edwards, M. J., additional, and Herrmann, M. C., additional

Published
2020
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36. The Crystal Backlighter Imager: A spherically bent crystal imager for radiography on the National Ignition Facility

Author

Hall, G. N., primary, Krauland, C. M., additional, Schollmeier, M. S., additional, Kemp, G. E., additional, Buscho, J. G., additional, Hibbard, R., additional, Thompson, N., additional, Casco, E. R., additional, Ayers, M. J., additional, Ayers, S. L., additional, Meezan, N. B., additional, Hopkins, L. F. Berzak, additional, Nora, R., additional, Hammel, B. A., additional, Masse, L., additional, Field, J. E., additional, Bradley, D. K., additional, Bell, P., additional, Landen, O. L., additional, Kilkenny, J. D., additional, Mariscal, D., additional, Park, J., additional, McCarville, T. J., additional, Lowe-Webb, R., additional, Kalantar, D., additional, Kohut, T., additional, and Piston, K., additional

Published
2019
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37. Long duration x-ray source development for x-ray diffraction at the National Ignition Facility.

Author

Werellapatha, K., Hall, G. N., Coppari, F., Kemp, G. E., Palmer, N. E., Krauland, C., Khan, S. F., Lazicki, A., Gorman, M. G., Nagel, S. R., Heinbockel, C., Bhandarkar, N., Masters, N., Bradley, D. K., Eggert, J. H., and Benedetti, L. R.

Subjects
*X-ray diffraction, *X-rays, *PHASE transitions, *LASER pulses
Abstract

We present the results of experiments to produce a 10 ns-long, quasi-monochromatic x-ray source. This effort is needed to support time-resolved x-ray diffraction (XRDt) measurements of phase transitions during laser-driven dynamic compression experiments at the National Ignition Facility. To record XRDt of phase transitions as they occur, we use high-speed (∼1 ns) gated hybrid CMOS detectors, which record multiple frames of data over a timescale of a few to tens of ns. Consequently, to make effective use of these imagers, XRDt needs the x-ray source to be narrow in energy and uniform in time as long as the sensors are active. The x-ray source is produced by a laser irradiated Ge foil. Our results indicate that the x-ray source lasts during the whole duration of the main laser pulse. Both time-resolved and time-integrated spectral data indicate that the line emission is dominated by the He-α complex over higher energy emission lines. Time-integrated spectra agree well with a one-dimensional Cartesian simulation using HYDRA that predicts a conversion efficiency of 0.56% when the incident intensity is 2 × 1015 W/cm2 on a Ge backlighter. [ABSTRACT FROM AUTHOR]

Published
2021
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38. The relationship between gas fill density and hohlraum drive performance at the National Ignition Facility

Author

Hall, G. N., primary, Jones, O. S., additional, Strozzi, D. J., additional, Moody, J. D., additional, Turnbull, D., additional, Ralph, J., additional, Michel, P. A., additional, Hohenberger, M., additional, Moore, A. S., additional, Landen, O. L., additional, Divol, L., additional, Bradley, D. K., additional, Hinkel, D. E., additional, Mackinnon, A. J., additional, Town, R. P. J., additional, Meezan, N. B., additional, Berzak Hopkins, L., additional, and Izumi, N., additional

Published
2017
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39. Short pulse, high resolution, backlighters for point projection high-energy radiography at the National Ignition Facility

Author

Tommasini, R., primary, Bailey, C., additional, Bradley, D. K., additional, Bowers, M., additional, Chen, H., additional, Di Nicola, J. M., additional, Di Nicola, P., additional, Gururangan, G., additional, Hall, G. N., additional, Hardy, C. M., additional, Hargrove, D., additional, Hermann, M., additional, Hohenberger, M., additional, Holder, J. P., additional, Hsing, W., additional, Izumi, N., additional, Kalantar, D., additional, Khan, S., additional, Kroll, J., additional, Landen, O. L., additional, Lawson, J., additional, Martinez, D., additional, Masters, N., additional, Nafziger, J. R., additional, Nagel, S. R., additional, Nikroo, A., additional, Okui, J., additional, Palmer, D., additional, Sigurdsson, R., additional, Vonhof, S., additional, Wallace, R. J., additional, and Zobrist, T., additional

Published
2017
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40. Indirect drive ignition at the National Ignition Facility

Author

Meezan, N B, primary, Edwards, M J, additional, Hurricane, O A, additional, Patel, P K, additional, Callahan, D A, additional, Hsing, W W, additional, Town, R P J, additional, Albert, F, additional, Amendt, P A, additional, Berzak Hopkins, L F, additional, Bradley, D K, additional, Casey, D T, additional, Clark, D S, additional, Dewald, E L, additional, Dittrich, T R, additional, Divol, L, additional, Döppner, T, additional, Field, J E, additional, Haan, S W, additional, Hall, G N, additional, Hammel, B A, additional, Hinkel, D E, additional, Ho, D D, additional, Hohenberger, M, additional, Izumi, N, additional, Jones, O S, additional, Khan, S F, additional, Kline, J L, additional, Kritcher, A L, additional, Landen, O L, additional, LePape, S, additional, Ma, T, additional, MacKinnon, A J, additional, MacPhee, A G, additional, Masse, L, additional, Milovich, J L, additional, Nikroo, A, additional, Pak, A, additional, Park, H-S, additional, Peterson, J L, additional, Robey, H F, additional, Ross, J S, additional, Salmonson, J D, additional, Smalyuk, V A, additional, Spears, B K, additional, Stadermann, M, additional, Suter, L J, additional, Thomas, C A, additional, Tommasini, R, additional, Turnbull, D P, additional, and Weber, C R, additional

Published
2016
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41. Observation of hohlraum-wall motion with spectrally selective x-ray imaging at the National Ignition Facility

Author

Izumi, N., primary, Meezan, N. B., additional, Divol, L., additional, Hall, G. N., additional, Barrios, M. A., additional, Jones, O., additional, Landen, O. L., additional, Kroll, J. J., additional, Vonhof, S. A., additional, Nikroo, A., additional, Jaquez, J., additional, Bailey, C. G., additional, Hardy, C. M., additional, Ehrlich, R. B., additional, Town, R. P. J., additional, Bradley, D. K., additional, Hinkel, D. E., additional, and Moody, J. D., additional

Published
2016
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42. Spatial resolution measurements of the advanced radiographic capability x-ray imaging system at energies relevant to Compton radiography

Author

Hall, G. N., primary, Izumi, N., additional, Landen, O. L., additional, Tommasini, R., additional, Holder, J. P., additional, Hargrove, D., additional, Bradley, D. K., additional, Lumbard, A., additional, Cruz, J. G., additional, Piston, K., additional, Lee, J. J., additional, Romano, E., additional, Bell, P. M., additional, Carpenter, A. C., additional, Palmer, N. E., additional, Felker, B., additional, Rekow, V., additional, and Allen, F. V., additional

Published
2016
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43. Experimental investigations of ablation stream interaction dynamics in tungsten wire arrays: Interpenetration, magnetic field advection, and ion deflection

Author

Swadling, G. F., primary, Lebedev, S. V., additional, Hall, G. N., additional, Suzuki-Vidal, F., additional, Burdiak, G. C., additional, Pickworth, L., additional, De Grouchy, P., additional, Skidmore, J., additional, Khoory, E., additional, Suttle, L., additional, Bennett, M., additional, Hare, J. D., additional, Clayson, T., additional, Bland, S. N., additional, Smith, R. A., additional, Stuart, N. H., additional, Patankar, S., additional, Robinson, T. S., additional, Harvey-Thompson, A. J., additional, Rozmus, W., additional, Yuan, J., additional, and Sheng, L., additional

Published
2016
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44. Towards a more universal understanding of radiation drive in gas-filled hohlraums

Author

Jones, O S, primary, Thomas, C A, additional, Amendt, P A, additional, Hall, G N, additional, Izumi, N, additional, Barrios Garcia, M A, additional, Berzak Hopkins, L F, additional, Chen, H, additional, Dewald, E L, additional, Hinkel, D E, additional, Kritcher, A L, additional, Marinak, M M, additional, Meezan, N B, additional, Milovich, J L, additional, Moody, J D, additional, Moore, A S, additional, Patel, M V, additional, Ralph, J E, additional, Regan, S P, additional, Rosen, M D, additional, Schneider, M B, additional, Sepke, S M, additional, Strozzi, DJ, additional, and Turnbull, D P, additional

Published
2016
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47. BOW SHOCK FRAGMENTATION DRIVEN BY A THERMAL INSTABILITY IN LABORATORY ASTROPHYSICS EXPERIMENTS

Author

Suzuki-Vidal, F., primary, Lebedev, S. V., additional, Ciardi, A., additional, Pickworth, L. A., additional, Rodriguez, R., additional, Gil, J. M., additional, Espinosa, G., additional, Hartigan, P., additional, Swadling, G. F., additional, Skidmore, J., additional, Hall, G. N., additional, Bennett, M., additional, Bland, S. N., additional, Burdiak, G., additional, de Grouchy, P., additional, Music, J., additional, Suttle, L., additional, Hansen, E., additional, and Frank, A., additional

Published
2015
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48. Radiography of modulated wire array Z-pinches

Author

Ampleford, David J., Jones, B., Bott, S.C., Lebedev, S.V., Bland, S.N., Hall, G. N., and Palmer, J.B.A.

Subjects
Radiography -- Evaluation, Pinch effect (Physics) -- Research, Wire netting -- Properties, Business, Chemistry, Electronics, Electronics and electrical industries
Abstract

X-pinch radiography data are presented for wire array Z-pinches in which the wires initially have an imposed modulation. Calibrated data indicate a sharp contrast between the initially thicker regions of the wire, which remain intact, and the thinner regions which become fully depleted of material. Index Terms--Wire abliation, wire array Z-pinch, X-pinch radiography.

Published
2008

49. Characterisation of the current switch mechanism in two-stage wire array Z-pinches

Author

Burdiak, G. C., primary, Lebedev, S. V., additional, Harvey-Thompson, A. J., additional, Hall, G. N., additional, Swadling, G. F., additional, Suzuki-Vidal, F., additional, Khoory, E., additional, Bland, S. N., additional, Pickworth, L., additional, de Grouchy, P., additional, Skidmore, J., additional, Suttle, L., additional, and Waisman, E. M., additional

Published
2015
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50. Interpenetration and deflection phenomena in collisions between supersonic, magnetized, tungsten plasma flows diagnosed using high resolution optical Thomson scattering

Author

Swadling, G. F., primary, Lebedev, S. V., additional, Harvey-Thompson, A. J., additional, Rozmus, W., additional, Burdiak, G., additional, Suttle, L., additional, Patankar, S., additional, Smith, R. A., additional, Bennett, M., additional, Hall, G. N., additional, Suzuki-Vidal, F., additional, Bland, S., additional, and Yuan, J., additional

Published
2015
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