Demonstration of fuel hot-spot pressure in excess of 50 Gbar for direct-drive, layered deuterium-tritium implosions on OMEGA

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

doi:10.1103/PhysRevLett.117.025001

Title: Demonstration of fuel hot-spot pressure in excess of 50 Gbar for direct-drive, layered deuterium-tritium implosions on OMEGA

Journal Article · Thu Jul 07 00:00:00 EDT 2016 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.117.025001· OSTI ID:1264250

Regan, S. P. ^[1]; Goncharov, V. N. ^[1]; Igumenshchev, I. V. ^[1]; Sangster, T. C. ^[1]; Betti, R. ^[1]; Bose, A. ^[1]; Boehly, T. R. ^[1]; Bonino, M. J. ^[1]; Campbell, E. M. ^[1]; Cao, D. ^[1]; Collins, T. J. B. ^[1]; Craxton, R. S. ^[1]; Davis, A. K. ^[1]; Delettrez, J. A. ^[1]; Edgell, D. H. ^[1]; Epstein, R. ^[1]; Forrest, C. J. ^[1]; Frenje, J. A. ^[2]; Froula, D. H. ^[1]; Gatu Johnson, M. ^[2] more »

Univ. of Rochester, Rochester, NY (United States)
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Naval Research Lab., Washington, D.C. (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

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

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Research Organization:: Univ. of Rochester, NY (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: NA0001944

OSTI ID:: 1264250

Alternate ID(s):: OSTI ID: 1260865

Journal Information:: Physical Review Letters, Vol. 117, Issue 2; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 74 works

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