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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, M J.
Affiliation
  • Regan SP; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Goncharov VN; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Igumenshchev IV; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Sangster TC; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Betti R; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Bose A; Fusion Science Center, University of Rochester, Rochester, New York 14623, USA.
  • Boehly TR; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Bonino MJ; Fusion Science Center, University of Rochester, Rochester, New York 14623, USA.
  • Campbell EM; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Cao D; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Collins TJ; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Craxton RS; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Davis AK; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Delettrez JA; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Edgell DH; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Epstein R; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Forrest CJ; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Frenje JA; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Froula DH; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Gatu Johnson M; Massachusetts Institute of Technology, Plasma Science and Fusion Center, Cambridge, Massachusetts 02139, USA.
  • Glebov VY; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Harding DR; Massachusetts Institute of Technology, Plasma Science and Fusion Center, Cambridge, Massachusetts 02139, USA.
  • Hohenberger M; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Hu SX; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Jacobs-Perkins D; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Janezic R; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Karasik M; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Keck RL; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Kelly JH; Naval Research Laboratory, Washington, D.C. 20375, USA.
  • Kessler TJ; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Knauer JP; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Kosc TZ; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Loucks SJ; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Marozas JA; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Marshall FJ; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • McCrory RL; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • McKenty PW; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Meyerhofer DD; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Michel DT; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Myatt JF; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Obenschain SP; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Petrasso RD; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Radha PB; Naval Research Laboratory, Washington, D.C. 20375, USA.
  • Rice B; Massachusetts Institute of Technology, Plasma Science and Fusion Center, Cambridge, Massachusetts 02139, USA.
  • Rosenberg MJ; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Schmitt AJ; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Schmitt MJ; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Seka W; Naval Research Laboratory, Washington, D.C. 20375, USA.
  • Shmayda WT; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Shoup MJ; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
Phys Rev Lett ; 117(2): 025001, 2016 Jul 08.
Article in En | MEDLINE | ID: mdl-27447511
ABSTRACT
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, these implosions achieved a Lawson parameter ∼60% of the value required for ignition [A. Bose et al., Phys. Rev. E 93, 011201(R) (2016)], similar to indirect-drive implosions [R. Betti et al., Phys. Rev. Lett. 114, 255003 (2015)], and nearly half of the direct-drive ignition-threshold pressure. Relative to symmetric, one-dimensional simulations, the inferred hot-spot pressure is approximately 40% lower. Three-dimensional simulations suggest that low-mode distortion of the hot spot seeded by laser-drive nonuniformity and target-positioning error reduces target performance.
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Full text: 1 Database: MEDLINE Language: En Year: 2016 Type: Article
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Full text: 1 Database: MEDLINE Language: En Year: 2016 Type: Article