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First high-convergence cryogenic implosion in a near-vacuum hohlraum.
Berzak Hopkins, L F; Meezan, N B; Le Pape, S; Divol, L; Mackinnon, A J; Ho, D D; Hohenberger, M; Jones, O S; Kyrala, G; Milovich, J L; Pak, A; Ralph, J E; Ross, J S; Benedetti, L R; Biener, J; Bionta, R; Bond, E; Bradley, D; Caggiano, J; Callahan, D; Cerjan, C; Church, J; Clark, D; Döppner, T; Dylla-Spears, R; Eckart, M; Edgell, D; Field, J; Fittinghoff, D N; Gatu Johnson, M; Grim, G; Guler, N; Haan, S; Hamza, A; Hartouni, E P; Hatarik, R; Herrmann, H W; Hinkel, D; Hoover, D; Huang, H; Izumi, N; Khan, S; Kozioziemski, B; Kroll, J; Ma, T; MacPhee, A; McNaney, J; Merrill, F; Moody, J; Nikroo, A.
Afiliação
  • Berzak Hopkins LF; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Meezan NB; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Le Pape S; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Divol L; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Mackinnon AJ; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Ho DD; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Hohenberger M; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Jones OS; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Kyrala G; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Milovich JL; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Pak A; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Ralph JE; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Ross JS; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Benedetti LR; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Biener J; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Bionta R; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Bond E; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Bradley D; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Caggiano J; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Callahan D; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Cerjan C; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Church J; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Clark D; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Döppner T; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Dylla-Spears R; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Eckart M; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Edgell D; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Field J; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Fittinghoff DN; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Gatu Johnson M; Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
  • Grim G; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Guler N; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Haan S; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Hamza A; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Hartouni EP; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Hatarik R; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Herrmann HW; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Hinkel D; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Hoover D; General Atomics, San Diego, California 93286, USA.
  • Huang H; General Atomics, San Diego, California 93286, USA.
  • Izumi N; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Khan S; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Kozioziemski B; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Kroll J; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Ma T; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • MacPhee A; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • McNaney J; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Merrill F; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Moody J; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Nikroo A; General Atomics, San Diego, California 93286, USA.
Phys Rev Lett ; 114(17): 175001, 2015 May 01.
Article em En | MEDLINE | ID: mdl-25978240
ABSTRACT
Recent experiments on the National Ignition Facility [M. J. Edwards et al., Phys. Plasmas 20, 070501 (2013)] demonstrate that utilizing a near-vacuum hohlraum (low pressure gas-filled) is a viable option for high convergence cryogenic deuterium-tritium (DT) layered capsule implosions. This is made possible by using a dense ablator (high-density carbon), which shortens the drive duration needed to achieve high convergence a measured 40% higher hohlraum efficiency than typical gas-filled hohlraums, which requires less laser energy going into the hohlraum, and an observed better symmetry control than anticipated by standard hydrodynamics simulations. The first series of near-vacuum hohlraum experiments culminated in a 6.8 ns, 1.2 MJ laser pulse driving a 2-shock, high adiabat (α∼3.5) cryogenic DT layered high density carbon capsule. This resulted in one of the best performances so far on the NIF relative to laser energy, with a measured primary neutron yield of 1.8×10(15) neutrons, with 20% calculated alpha heating at convergence ∼27×.
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Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2015 Tipo de documento: Article País de afiliação: Estados Unidos
Buscar no Google
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Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2015 Tipo de documento: Article País de afiliação: Estados Unidos