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Observation of Hydrodynamic Flows in Imploding Fusion Plasmas on the National Ignition Facility.
Schlossberg, D J; Grim, G P; Casey, D T; Moore, A S; Nora, R; Bachmann, B; Benedetti, L R; Bionta, R M; Eckart, M J; Field, J E; Fittinghoff, D N; Gatu Johnson, M; Geppert-Kleinrath, V; Hartouni, E P; Hatarik, R; Hsing, W W; Jarrott, L C; Khan, S F; Kilkenny, J D; Landen, O L; MacGowan, B J; Mackinnon, A J; Meaney, K D; Munro, D H; Nagel, S R; Pak, A; Patel, P K; Spears, B K; Volegov, P L; Young, C V.
Afiliación
  • Schlossberg DJ; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Grim GP; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Casey DT; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Moore AS; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Nora R; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Bachmann B; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Benedetti LR; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Bionta RM; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Eckart MJ; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Field JE; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Fittinghoff DN; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Gatu Johnson M; Massachusetts Institute of Technology Plasma Science and Fusion Center, Cambridge, Massachusetts 02139, USA.
  • Geppert-Kleinrath V; Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA.
  • Hartouni EP; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Hatarik R; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Hsing WW; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Jarrott LC; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Khan SF; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Kilkenny JD; General Atomics, La Jolla, California 92121, USA.
  • Landen OL; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • MacGowan BJ; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Mackinnon AJ; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Meaney KD; Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA.
  • Munro DH; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Nagel SR; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Pak A; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Patel PK; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Spears BK; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  • Volegov PL; Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA.
  • Young CV; Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
Phys Rev Lett ; 127(12): 125001, 2021 Sep 17.
Article en En | MEDLINE | ID: mdl-34597087
ABSTRACT
Inertial confinement fusion implosions designed to have minimal fluid motion at peak compression often show significant linear flows in the laboratory, attributable per simulations to percent-level imbalances in the laser drive illumination symmetry. We present experimental results which intentionally varied the mode 1 drive imbalance by up to 4% to test hydrodynamic predictions of flows and the resultant imploded core asymmetries and performance, as measured by a combination of DT neutron spectroscopy and high-resolution x-ray core imaging. Neutron yields decrease by up to 50%, and anisotropic neutron Doppler broadening increases by 20%, in agreement with simulations. Furthermore, a tracer jet from the capsule fill-tube perturbation that is entrained by the hot-spot flow confirms the average flow speeds deduced from neutron spectroscopy.
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos
Texto completo
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PubMed Links
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos