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917 results on '"Theobald, W"'

1. A New Optimization Methodology for Polar Direct Drive Illuminations at the National Ignition Facility

Author

Barlow, Duncan, Colaïtis, A., Viala, D., Rosenberg, M. J., Igumenshchev, I., Goncharov, V., Ceurvorst, L., Radha, P. B., Theobald, W., Craxton, R. S., Streeter, M. J. V., Chapman, T., Mathiaud, J., Scott, R. H. H., and Glize, K.

Subjects
Physics - Plasma Physics
Abstract

A new, efficient, algorithmic approach to create illumination configurations for laser driven high energy density physics experiments is proposed. The method is applied to a polar direct drive solid target experiment at the National Ignition Facility (NIF), where it is simulated to create more than x2 higher peak pressure and x1.4 higher density by maintaining better shock uniformity. The analysis is focused on projecting shocks into solid targets at the NIF, but with minor adaptations the method could be applied to implosions, other target geometries and other facilities.

Published
2023

2. 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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3. 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. 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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7. Towards the Optimisation of Direct Laser Acceleration

Author

Hussein, A. E., Arefiev, A. V., Batson, T., Chen, H., Craxton, R. S., Davies, A. S., Froula, D. H., Gong, Z., Haberberger, D., Ma, Y., Nilson, P. M., Theobald, W., Wang, T., Weichman, K., Williams, G. J., and Willingale, L.

Subjects
Physics - Plasma Physics
Abstract

Experimental measurements using the OMEGA EP laser facility demonstrated direct laser acceleration (DLA) of electron beams to (505 $\pm$ 75) MeV with (140 $\pm$ 30)~nC of charge from a low-density plasma target using a 400 J, picosecond duration pulse. Similar trends of electron energy with target density are also observed in self-consistent two-dimensional particle-in-cell simulations. The intensity of the laser pulse is sufficiently large that the electrons are rapidly expelled from along the laser pulse propagation axis to form a channel. The dominant acceleration mechanism is confirmed to be DLA and the effect of quasi-static channel fields on energetic electron dynamics is examined. A strong channel magnetic field, self-generated by the accelerated electrons, is found to play a comparable role to the transverse electric channel field in defining the boundary of electron motion., Comment: 21 pages, 7 figures

Published
2021

8. Pump-Depletion Dynamics and Saturation of Stimulated Brillouin Scattering in Shock Ignition Relevant Experiments

Author

Zhang, S., Li, J., Krauland, C. M., Beg, F. N., Muller, S., Theobald, W., Palastro, J., Filkins, T., Turnbull, D., Haberberger, D., Ren, C., Betti, R., Stoeckl, C., Campbell, E. M., Trela, J., Batani, D., Scott, R., and Wei, M. S.

Subjects
Physics - Plasma Physics
Abstract

As an alternative inertial confinement fusion scheme with predicted high energy gain and more robust designs, shock ignition requires a strong converging shock driven by a shaped pulse with a high-intensity spike at the end to ignite a pre-compressed fusion capsule. Understanding nonlinear laser-plasma instabilities in shock ignition conditions is crucial to assess and improve the laser-shock energy coupling. Recent experiments conducted on the OMEGA-EP laser facility have for the first time demonstrated that such instabilities can $\sim$100\% deplete the first 0.5 ns of the high-intensity laser pump. Analysis of the observed laser-generated blast wave suggests that this pump-depletion starts at 0.01--0.02 critical density and progresses to 0.1--0.2 critical density. This pump-depletion is also confirmed by the time-resolved stimulated Raman backscattering spectra. The dynamics of the pump-depletion can be explained by the breaking of ion-acoustic waves in stimulated Brillouin scattering. Such strong pump-depletion would inhibit the collisional laser energy absorption but may benefit the generation of hot electrons with moderate temperatures for electron shock ignition [Shang et al. Phys. Rev. Lett. 119 195001 (2017)].

Published
2019
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9. Direct-drive measurements of laser-imprint-induced shock velocity nonuniformities

Author

Peebles, J. L., Hu, S. X., Theobald, W., Goncharov, V. N., Whiting, N., Celliers, P. M., Ali, S. J., Duchateau, G., Campbell, E. M., Boehly, T. R., and Regan, S. P.

Subjects
Physics - Plasma Physics
Abstract

Perturbations in the velocity profile of a laser-ablation-driven shock wave seeded by speckle in the spatial beam intensity (i.e., laser imprint) have been measured. Direct measurements of these velocity perturbations were recorded using a two-dimensional high-resolution velocimeter probing plastic material shocked by a 100-ps picket laser pulse from the OMEGA laser system. The measured results for experiments with one, two, and five overlapping beams incident on the target clearly demonstrate a reduction in long-wavelength ($>$25 um) perturbations with an increasing number of overlapping laser beams, consistent with theoretical expectations. These experimental measurements are crucial to validate radiation-hydrodynamics simulations of laser imprint for laser direct drive inertial confinement fusion research since they highlight the significant (factor of 3) underestimation of the level of seeded perturbation when the microphysics processes for initial plasma formation, such as multiphoton ionization are neglected., Comment: 6 pages, 5 figures

Published
2019
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10. Simulated Refraction-Enhanced X-Ray Radiography of Laser-Driven Shocks

Author

Kar, Arnab, Boehly, T. R., Radha, P. B., Edgell, D. H., Hu, S. X., Nilson, P. M., Shvydky, A., Theobald, W., Cao, D., Anderson, K. S., Goncharov, V. N., and Regan, S. P.

Subjects
Physics - Plasma Physics
Abstract

Refraction-enhanced x-ray radiography (REXR) is used to infer shock-wave positions of more than one shock wave, launched by a multiple-picket pulse in a planar plastic foil. This includes locating shock waves before the shocks merge, during the early time and the main drive of the laser pulse that is not possible with the velocity interferometer system for any reflector. Simulations presented in this paper of REXR show that it is necessary to incorporate refraction and attenuation of x rays along with the appropriate opacity and refractive-index tables to interpret experimental images. Simulated REXR shows good agreement with an experiment done on the OMEGA laser facility to image a shock wave. REXR can be applied to design multiple-picket pulses with a better understanding of the shock locations. This will be beneficial to obtain the required adiabats for inertial confinement fusion implosions.

Published
2019
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12. Analysis of trends in experimental observables and reconstruction of the implosion dynamics for direct-drive cryogenic targets on OMEGA

Author

Bose, A., Betti, R., Mangino, D., Woo, K. M., Patel, D., Christopherson, A. R., Gopalaswamy, V., Mannion, O. M., Regan, S. P., Goncharov, V. N., Edgell, D. H., Forrest, C. J., Frenje, J. A., Johnson, M. Gatu, Glebov, V. Yu, Igumenshchev, I. V., Knauer, J. P., Marshall, F. J., Radha, P. B., Shah, R., Stoeckl, C., Theobald, W., Sangster, T. C., Shvarts, D., and Campbell, E. M.

Subjects
Physics - Plasma Physics
Abstract

This paper describes a technique for identifying trends in performance degradation for inertial confinement fusion implosion experiments. It is based on reconstruction of the implosion core with a combination of low- and mid-mode asymmetries. This technique was applied to an ensemble of hydro-equivalent deuterium-tritium implosions on OMEGA that achieved inferred hot-spot pressures ~56+/-7 Gbar [S. Regan et al., Phys. Rev. Lett. 117, 025001 (2016)]. All the experimental observables pertaining to the core could be reconstructed simultaneously with the same combination of low and mid modes. This suggests that in addition to low modes, that can cause a degradation of the stagnation pressure, mid modes are present that reduce the size of the neuron and x-ray producing volume. The systematic analysis shows that asymmetries can cause an overestimation of the total areal density in these implosions. It is also found that an improvement in implosion symmetry resulting from correction of either the systematic mid or low modes would result in an increase of the hot-spot pressure from 56 Gbar to ~80 Gbar and could produce a burning plasma when the implosion core is extrapolated to an equivalent 1.9 MJ symmetric direct illumination [A. Bose et al., Phys. Rev. E 94, 011201(R) (2016)].

Published
2018
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13. Three-dimensional reconstruction of laser-direct-drive inertial confinement fusion hot-spot plasma from x-ray diagnostics on the OMEGA laser facility (invited).

Author

Churnetski, K., Woo, K. M., Theobald, W., Betti, R., Ceurvorst, L., Forrest, C. J., Gopalaswamy, V., Heuer, P. V., Ivancic, S. T., Knauer, J. P., Lees, A., Michalko, M., Rosenberg, M. J., Shah, R. C., Stoeckl, C., Thomas, C. A., and Regan, S. P.

Abstract

A deep-learning convolutional neural network (CNN) is used to infer, from x-ray images along multiple lines of sight, the low-mode shape of the hot-spot emission of deuterium–tritium (DT) laser-direct-drive cryogenic implosions on OMEGA. The motivation of this approach is to develop a physics-informed 3-D reconstruction technique that can be performed within minutes to facilitate the use of the results to inform changes to the initial target and laser conditions for the subsequent implosion. The CNN is trained on a 3D radiation-hydrodynamic simulation database to relate 2D x-ray images to 3D emissivity at stagnation. The CNN accounts for the lack of an absolute spatial reference and the different bands of photon energies in the x-ray images. While previous work [O. M. Mannion et al., Phys. Plasmas 28, 042701 (2021) and A. Lees et al., Phys. Rev. Lett. 127, 105001 (2021)] studied the effect of mode-1 asymmetries on implosion performance using nuclear diagnostics, this work focuses on the effect of mode 2 inferred from x-ray diagnostics on implosion performance. A current analysis of 19 DT cryogenic implosions indicates there is an upper limit of ∼20% reduction in the neutron yield caused by an ℓ = 2 amplitude for ℓ2/ℓ0 ≤ 0.32. These conclusions are supported by 2D simulations. [ABSTRACT FROM AUTHOR]

Published
2024
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14. Ex situ calibration of the scattered-light time-history diagnostic on the National Ignition Facility.

Author

Kostick, S., Filkins, T., Rosenberg, M. J., Katz, J., Theobald, W., Lemos, N., Tubman, E., Sommers, R., Hernandez, J. E., Swadling, G., Ross, J. S., Radha, P. B., Grullon, F., Heinmiller, J. M., Fornes, J., Hillyard, P., McCumber, J., Ceurvorst, L., and Regan, S. P.

Subjects
LIGHT transmission, OPTICAL instruments, OPTICAL elements, LIGHT scattering, MEASURING instruments, BRILLOUIN scattering, RAMAN scattering, INERTIAL confinement fusion
Abstract

The scattered-light time-history diagnostic (SLTD) suite measures time-resolved scattered light in three wavelength bands: stimulated Brillouin scattering (350–352 nm), stimulated Raman scattering (430–760 nm), and plasma emission at half the laser frequency (695–735 nm), at 15 locations around the National Ignition Facility (NIF) target chamber. The SLTD, along with the full-aperture backscatter station (FABS), collects scattered light from direct- and indirect-drive inertial confinement fusion experiments. The SLTD calibration was revisited after a discrepancy between FABS and SLTD measurements was observed on NIF polar direct-drive [Skupsky et al., Phys. Plasmas 11, 2763 (2004)] experiments. An integrated calibration of the SLTD was performed for the first time, and individual components were also calibrated for the wavelengths of 351, 527, and 532 nm. The optical transmission of the instrument was measured to be (1.12 ± 0.04) × 10−7 and (1.96 ± 0.11) × 10−7 for the wavelengths of 351 and 532 nm, respectively. The revised calibration at 351 nm brings the SLTD measured scattered energy in agreement with the FABS measured scattered energy after additionally accounting for the degradation of an optical element in FABS. This decreased the inferred absorption by 7% for a representative experiment. However, discrepancies remain between FABS and SLTD measurements in the SRS band (532 nm). [ABSTRACT FROM AUTHOR]

Published
2024
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17. Characterization of the upgraded single-line-of-sight time-resolved x-ray imager using short-pulse visible and UV lasers.

Author

Michalko, M. J., Churnetski, K., Katz, J., Regan, S. P., Theobald, W., and Ivancic, S. T.

Subjects
ULTRAVIOLET lasers, LASER pulses, SPATIAL resolution, X-rays, DETECTORS
Abstract

The single-line-of-sight time-resolved x-ray imager (SLOS-TRXI), a fast-gated x-ray imager used for capturing x-ray self-emission in inertial confinement fusion experiments on OMEGA, has been upgraded and characterized. SLOS-TRXI combines an electron-dilation imager and a hybrid complementary metal–oxide–semiconductor (hCMOS) sensor to capture multiple gated frames on a single line of sight with a temporal resolution of ∼40 ps and a spatial resolution of 10 µm. The original hCMOS sensor with four frames was replaced with a newer-generation hCMOS sensor having eight frames. Gate characterizations of both the sensor and the entire SLOS-TRXI diagnostic were performed using ∼10-ps FWHM visible (2ω) and UV (4ω) short-pulse lasers, respectively. A stepped echelon was used to generate a train of five UV laser pulses having an interpulse separation of 30 ± 3 ps. Characterization results of the hCMOS gating (2.28 ± 0.02-ns FWHM on average) and a temporal resolution of the upgraded SLOS-TRXI (34 ± 4-ps FWHM on average) are presented. A temporal magnification for the electron-dilation imager between 40 and 60 was inferred from the characterization results. The spatial resolution of the upgraded SLOS-TRXI remains the same in light of this work. [ABSTRACT FROM AUTHOR]

Published
2024
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20. Tripled yield in direct-drive laser fusion through statistical modelling

Author

Gopalaswamy, V., Betti, R., Knauer, J. P., Luciani, N., Patel, D., Woo, K. M., Bose, A., Igumenshchev, I. V., Campbell, E. M., Anderson, K. S., Bauer, K. A., Bonino, M. J., Cao, D., Christopherson, A. R., Collins, G. W., Collins, T. J. B., Davies, J. R., Delettrez, J. A., Edgell, D. H., Epstein, R., Forrest, C. J., Froula, D. H., Glebov, V. Y., Goncharov, V. N., Harding, D. R., Hu, S. X., Jacobs-Perkins, D. W., Janezic, R. T., Kelly, J. H., Mannion, O. M., Maximov, A., Marshall, F. J., Michel, D. T., Miller, S., Morse, S. F. B., Palastro, J., Peebles, J., Radha, P. B., Regan, S. P., Sampat, S., Sangster, T. C., Sefkow, A. B., Seka, W., Shah, R. C., Shmyada, W. T., Shvydky, A., Stoeckl, C., Solodov, A. A., Theobald, W., Zuegel, J. D., Johnson, M. Gatu, Petrasso, R. D., Li, C. K., and Frenje, J. A.

Published
2019
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21. Proof-of-Principle Experiment on the Dynamic Shell Formation for Inertial Confinement Fusion

Author

Igumenshchev, I. V., primary, Theobald, W., additional, Stoeckl, C., additional, Shah, R. C., additional, Bishel, D. T., additional, Goncharov, V. N., additional, Bonino, M. J., additional, Campbell, E. M., additional, Ceurvorst, L., additional, Chin, D. A., additional, Collins, T. J. B., additional, Fess, S., additional, Harding, D. R., additional, Sampat, S., additional, Shaffer, N. R., additional, Shvydky, A., additional, Smith, E. A., additional, Trickey, W. T., additional, Waxer, L. J., additional, Colaïtis, A., additional, Liotard, R., additional, Adrian, P. J., additional, Atzeni, S., additional, Barbato, F., additional, Savino, L., additional, Alfonso, N., additional, Haid, A., additional, and Do, Mi, additional

Published
2023
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22. Hot electron preheat in hydrodynamically scaled direct-drive inertial confinement fusion implosions on the NIF and OMEGA

Author

Rosenberg, M. J., primary, Solodov, A. A., additional, Stoeckl, C., additional, Hohenberger, M., additional, Bahukutumbi, R., additional, Theobald, W., additional, Edgell, D., additional, Filkins, T., additional, Betti, R., additional, Marshall, F. J., additional, Shah, R. C., additional, Turnbull, D. P., additional, Christopherson, A. R., additional, Lemos, N., additional, Tubman, E., additional, and Regan, S. P., additional

Published
2023
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23. Investigation of laser plasma instabilities driven by 527 nm laser pulses relevant for direct drive inertial confinement fusion.

Author

Wasser, F., Zähter, Ş., Rivers, M., Atzeni, S., Condamine, F. P., Cristoforetti, G., Fauvel, G., Fischer, N., Gizzi, L. A., Hoffmann, D., Koester, P., Laštovička, T., Myatt, J. F., Singh, R. L., Sokol, M., Theobald, W., Weber, S., Ditmire, T., Forner, T., and Roth, M.

Subjects
INERTIAL confinement fusion, LASER plasmas, PLASMA instabilities, LASER pulses, RAMAN scattering, IMPLOSIONS
Abstract

We report on a study of laser plasma instabilities with 527 nm laser pulses in an intensity range of 0.5 × 10 13 − 1.1 × 10 15 W cm − 2 and plasma parameters entering a regime that is relevant for direct drive inertial confinement fusion. Using the kilojoule high repetition rate L4n laser at the Extreme Light Infrastructure—Beamlines, more than 1300 shots were collected, and the onset and the growth of stimulated Brioullin scattering (SBS) and stimulated Raman scattering (SRS) were studied with a high confidence level. The measured onset intensities are 0.2 × 10 14 W cm − 2 for SBS and 1.4 × 10 14 W cm − 2 for SRS. At the maximum intensity, the total fraction of backscattered energy reaches 2.5% for SBS and 0.1% for SRS. These results are of high relevance for advanced concepts for inertial fusion energy, which rely on the use of 527 nm laser light to drive the implosion of the fuel target, and in particular, they can be used as a benchmark for advanced simulations. [ABSTRACT FROM AUTHOR]

Published
2024
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24. Full aperture backscatter diagnostics for characterization of laser plasma instabilities at the extreme light infrastructure (ELI) beamlines.

Author

Wasser, F., Zähter, Ş., Sokol, M., Rivers, M., Atzeni, S., Condamine, F. P., Cristoforetti, G., Fauvel, G., Fischer, N., Gizzi, L. A., Hannasch, A., Hesse, M., Laštovička, T., Lutz, P., Rubovič, P., Schaumann, G., Schott, N., Singh, R. L., Theobald, W., and Weber, S.

Subjects
LASER plasmas, PLASMA instabilities, BACKSCATTERING, LASER-plasma interactions, LASER ranging, RAMAN scattering, BRILLOUIN scattering
Abstract

We report on the commissioning of a full aperture backscatter diagnostics station for the kilojoule, nanosecond high repetition rate L4n laser operating at a wavelength of 527 nm at the Extreme Light Infrastructure (ELI) - Beamlines, Dolni Brezany, Czech Republic. Light scattered back from laser–plasma interaction into the cone of the final focusing lens is captured and split into different channels to measure the signatures of laser plasma instabilities from stimulated Brillouin scattering, stimulated Raman scattering, and two plasmon decay with respect to back scattered energy, its spectrum, and its temporal profile. The performance was confirmed in a commissioning experiment with more than 800 shots at laser intensities ranging from 0.5 × 1013 to 1.1 × 1015 W cm−2. These diagnostics are permanently installed at ELI Beamlines, and can be used to understand the details of laser–plasma interactions in experiments with kJ and 527 nm light. The large number of shots that can be collected in an experimental campaign will allow us to study the details of the laser–plasma interaction with a high level of confidence. [ABSTRACT FROM AUTHOR]

Published
2023
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25. Developing a platform for Fresnel diffractive radiography with 1 μm spatial resolution at the National Ignition Facility

Author

Schoelmerich, M. O., primary, Döppner, T., additional, Allen, C. H., additional, Divol, L., additional, Oliver, M., additional, Haden, D., additional, Biener, M., additional, Crippen, J., additional, Delora-Ellefson, J., additional, Ferguson, B., additional, Gericke, D. O., additional, Goldman, A., additional, Haid, A., additional, Heinbockel, C., additional, Kalantar, D., additional, Karmiol, Z., additional, Kemp, G., additional, Kroll, J., additional, Landen, O. L., additional, Masters, N., additional, Ping, Y., additional, Spindloe, C., additional, Theobald, W., additional, and White, T. G., additional

Published
2023
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26. Understanding the fusion yield dependencies in OMEGA DT-layered implosion experiments using a physics-based statistical mapping model

Author

Lees, A., primary, Betti, R., additional, Knauer, J. P., additional, Gopalaswamy, V., additional, Patel, D., additional, Woo, K. M., additional, Anderson, K. S., additional, Campbell, E. M., additional, Cao, D., additional, Carroll-Nellenback, J., additional, Epstein, R., additional, Forrest, C. J., additional, Goncharov, V. N., additional, Harding, D. R., additional, Hu, S. X., additional, Igumenshchev, I. V., additional, Janezic, R. T., additional, Mannion, O. M., additional, Radha, P. B., additional, Regan, S. P., additional, Shvydky, A., additional, Shah, R. C., additional, Shmayda, W. T., additional, Stoeckl, C., additional, Theobald, W., additional, and Thomas, C. A., additional

Published
2023
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27. 3D simulations of inertial confinement fusion implosions part 2: systematic flow anomalies and impact of low modes on performances in OMEGA experiments

Author

Colaïtis, A, primary, Igumenshchev, I V, additional, Turnbull, D P, additional, Shah, R, additional, Edgell, D, additional, Mannion, O M, additional, Stoeckl, C, additional, Jacob-Perkins, D W, additional, Shvydky, A, additional, Janezic, R, additional, Kalb, A, additional, Cao, D, additional, Forrest, C J, additional, Kwiatkowski, J, additional, Regan, S P, additional, Theobald, W, additional, Goncharov, V N, additional, and Froula, D, additional

Published
2022
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28. Inferences of hot electron preheat and its spatial distribution in OMEGA direct drive implosions

Author

Christopherson, A. R., primary, Betti, R., additional, Forrest, C. J., additional, Howard, J., additional, Theobald, W., additional, Campbell, E. M., additional, Delettrez, J., additional, Rosenberg, M. J., additional, Solodov, A. A., additional, Stoeckl, C., additional, Patel, D., additional, Gopalaswamy, V., additional, Cao, D., additional, Peebles, J., additional, Edgell, D., additional, Seka, W., additional, Epstein, R., additional, Scullin, W., additional, Radha, P. B., additional, Wei, M. S., additional, Regan, S. P., additional, Gatu Johnson, M., additional, and Simpson, R., additional

Published
2022
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30. Design of the high-yield time-gated x-ray hot-spot imager for OMEGA

Author

Ivancic, S. T., primary, Theobald, W., additional, Churnetski, K., additional, Michalko, M., additional, Willistein, D., additional, Bittle, W. A., additional, Regan, S. P., additional, Carpenter, A., additional, Trosseille, C., additional, Kilkenny, J. D., additional, Raymond, A., additional, Hares, J. D., additional, Dymoke-Bradshaw, A. K. L., additional, Rochau, G., additional, and Garand, D., additional

Published
2022
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31. Current advances on Talbot–Lau x-ray imaging diagnostics for high energy density experiments (invited)

Author

Valdivia, M. P., primary, Perez-Callejo, G., additional, Bouffetier, V., additional, Collins, G. W., additional, Stoeckl, C., additional, Filkins, T., additional, Mileham, C., additional, Romanofsky, M., additional, Begishev, I. A., additional, Theobald, W., additional, Klein, S. R., additional, Schneider, M. K., additional, Beg, F. N., additional, Casner, A., additional, and Stutman, D., additional

Published
2022
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32. Measurements of low-mode asymmetries in the areal density of laser-direct-drive deuterium–tritium cryogenic implosions on OMEGA using neutron spectroscopy

Author

Forrest, C. J., primary, Crilly, A., additional, Schwemmlein, A., additional, Gatu-Johnson, M., additional, Mannion, O. M., additional, Appelbe, B., additional, Betti, R., additional, Glebov, V. Yu., additional, Gopalaswamy, V., additional, Knauer, J. P., additional, Mohamed, Z. L., additional, Radha, P. B., additional, Regan, S. P., additional, Stoeckl, C., additional, and Theobald, W., additional

Published
2022
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34. Publisher's Note: “Analysis of core asymmetries in inertial confinement fusion implosions using three-dimensional hot-spot reconstruction” [Phys. Plasmas 29, 082705 (2022)]

Author

Woo, K. M., primary, Betti, R., additional, Thomas, C. A., additional, Stoeckl, C., additional, Churnetski, K., additional, Forrest, C. J., additional, Mohamed, Z. L., additional, Zirps, B., additional, Regan, S. P., additional, Collins, T. J. B., additional, Theobald, W., additional, Shah, R. C., additional, Mannion, O. M., additional, Patel, D., additional, Cao, D., additional, Knauer, J. P., additional, Glebov, V. Yu., additional, Goncharov, V. N., additional, Radha, P. B., additional, Rinderknecht, H. G., additional, Epstein, R., additional, Gopalaswamy, V., additional, Marshall, F. J., additional, Ivancic, S. T., additional, and Campbell, E. M., additional

Published
2022
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35. 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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36. A knock-on deuteron imager for measurements of fuel and hotspot asymmetry in direct-drive inertial confinement fusion implosions (invited)

Author

Rinderknecht, H. G., primary, Heuer, P. V., additional, Kunimune, J., additional, Adrian, P. J., additional, Knauer, J. P., additional, Theobald, W., additional, Fairbanks, R., additional, Brannon, B., additional, Ceurvorst, L., additional, Gopalaswamy, V., additional, Williams, C. A., additional, Radha, P. B., additional, Regan, S. P., additional, Johnson, M. Gatu, additional, Séguin, F. H., additional, and Frenje, J. A., additional

Published
2022
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38. Three-dimensional hot-spot x-ray emission tomography from cryogenic deuterium–tritium direct-drive implosions on OMEGA

Author

Churnetski, K., primary, Woo, K. M., additional, Theobald, W., additional, Radha, P. B., additional, Betti, R., additional, Gopalaswamy, V., additional, Igumenshchev, I. V., additional, Ivancic, S. T., additional, Michalko, M., additional, Shah, R. C., additional, Stoeckl, C., additional, Thomas, C. A., additional, and Regan, S. P., additional

Published
2022
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41. 3D Simulations Capture the Persistent Low-Mode Asymmetries Evident in Laser-Direct-Drive Implosions on OMEGA

Author

Colaïtis, A., primary, Turnbull, D. P., additional, Igumenschev, I. V., additional, Edgell, D., additional, Shah, R. C., additional, Mannion, O. M., additional, Stoeckl, C., additional, Jacob-Perkins, D., additional, Shvydky, A., additional, Janezic, R., additional, Kalb, A., additional, Cao, D., additional, Forrest, C. J., additional, Kwiatkowski, J., additional, Regan, S., additional, Theobald, W., additional, Goncharov, V. N., additional, and Froula, D. H., additional

Published
2022
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42. Analysis of core asymmetries in inertial confinement fusion implosions using three-dimensional hot-spot reconstruction

Author

Woo, K. M., primary, Betti, R., additional, Thomas, C. A., additional, Stoeckl, C., additional, Churnetski, K., additional, Forrest, C. J., additional, Mohamed, Z. L., additional, Zirps, B., additional, Regan, S. P., additional, Collins, T. J. B., additional, Theobald, W., additional, Shah, R. C., additional, Mannion, O. M., additional, Patel, D., additional, Cao, D., additional, Knauer, J. P., additional, Glebov, V. Yu., additional, Goncharov, V. N., additional, Radha, P. B., additional, Rinderknecht, H. G., additional, Epstein, R., additional, Gopalaswamy, V., additional, Marshall, F. J., additional, Ivancic, S. T., additional, and Campbell, E. M., additional

Published
2022
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43. Role of hot electrons in shock ignition constrained by experiment at the National Ignition Facility

Author

Barlow, D., primary, Goffrey, T., additional, Bennett, K., additional, Scott, R. H. H., additional, Glize, K., additional, Theobald, W., additional, Anderson, K., additional, Solodov, A. A., additional, Rosenberg, M. J., additional, Hohenberger, M., additional, Woolsey, N. C., additional, Bradford, P., additional, Khan, M., additional, and Arber, T. D., additional

Published
2022
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44. Bound on hot-spot mix in high-velocity, high-adiabat direct-drive cryogenic implosions based on comparison of absolute x-ray and neutron yields

Author

Shah, R. C., primary, Cao, D., additional, Aghaian, L., additional, Bachmann, B., additional, Betti, R., additional, Campbell, E. M., additional, Epstein, R., additional, Forrest, C. J., additional, Forsman, A., additional, Glebov, V. Yu., additional, Goncharov, V. N., additional, Gopalaswamy, V., additional, Harding, D. R., additional, Hu, S. X., additional, Igumenshchev, I. V., additional, Janezic, R. T., additional, Keaty, L., additional, Knauer, J. P., additional, Kobs, D., additional, Lees, A., additional, Mannion, O. M., additional, Mohamed, Z. L., additional, Patel, D., additional, Rosenberg, M. J., additional, Shmayda, W. T., additional, Stoeckl, C., additional, Theobald, W., additional, Thomas, C. A., additional, Volegov, P., additional, Woo, K. M., additional, and Regan, S. P., additional

Published
2022
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45. Hot Electron Generation and Laser–Plasma Instabilities in Shock Ignition Relevant Experiments

Author

Raymond, A., primary, Krauland, C., additional, Hahn, E. N., additional, Kim, J., additional, Beg, F. N., additional, Alfonso, N., additional, Fess, S., additional, Peebles, J., additional, Wei, M., additional, Theobald, W., additional, Palastro, J., additional, Ren, C., additional, Stoeckl, C., additional, Haberberger, D., additional, Filkins, T., additional, Katz, J. D., additional, Hansen, A. M., additional, Turnbull, D., additional, Betti, R., additional, Follett, R., additional, Campbell, M., additional, Trela, J., additional, Batani, D., additional, Scott, R., additional, and Antonelli, L., additional

Published
2022
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47. Transport of an intense proton beam from a cone-structured target through plastic foam with unique proton source modeling

Author

Bhutwala, K., primary, McGuffey, C., additional, Theobald, W., additional, Deppert, O., additional, Kim, J., additional, Nilson, P. M., additional, Wei, M. S., additional, Ping, Y., additional, Foord, M. E., additional, McLean, H. S., additional, Patel, P. K., additional, Higginson, A., additional, Roth, M., additional, and Beg, F. N., additional

Published
2022
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49. Progress in Cryogenic Target Implosions on OMEGA

Author

McCrory, R L, primary, Meyerhofer, D D, additional, Betti, R, additional, Boehly, T R, additional, Craxton, R S, additional, Delettrez, J A, additional, Edgell, D H, additional, Glebov, V Yu, additional, Goncharov, V N, additional, Harding, D R, additional, Hu, S X, additional, Knauer, J P, additional, Marshall, F J, additional, McKenty, P W, additional, Radha, P B, additional, Regan, S P, additional, Sangster, T C, additional, Seka, W, additional, Short, R W, additional, Shvarts, D, additional, Skupsky, S, additional, Smalyuk, V A, additional, Soures, J M, additional, Stoeckl, C, additional, Theobald, W, additional, Yaakobi, B, additional, Frenje, J A, additional, Li, C K, additional, Petrasso, R D, additional, Séguin, F H, additional, and Casey, D T, additional

Published
2016
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