Your browser doesn't support javascript.
loading
Early-time symmetry tuning in the presence of cross-beam energy transfer in ICF experiments on the National Ignition Facility.
Dewald, E L; Milovich, J L; Michel, P; Landen, O L; Kline, J L; Glenn, S; Jones, O; Kalantar, D H; Pak, A; Robey, H F; Kyrala, G A; Divol, L; Benedetti, L R; Holder, J; Widmann, K; Moore, A; Schneider, M B; Döppner, T; Tommasini, R; Bradley, D K; Bell, P; Ehrlich, B; Thomas, C A; Shaw, M; Widmayer, C; Callahan, D A; Meezan, N B; Town, R P J; Hamza, A; Dzenitis, B; Nikroo, A; Moreno, K; Van Wonterghem, B; Mackinnon, A J; Glenzer, S H; MacGowan, B J; Kilkenny, J D; Edwards, M J; Atherton, L J; Moses, E I.
Afiliación
  • Dewald EL; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Milovich JL; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Michel P; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Landen OL; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Kline JL; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Glenn S; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Jones O; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Kalantar DH; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Pak A; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Robey HF; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Kyrala GA; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Divol L; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Benedetti LR; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Holder J; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Widmann K; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Moore A; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Schneider MB; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Döppner T; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Tommasini R; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Bradley DK; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Bell P; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Ehrlich B; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Thomas CA; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Shaw M; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Widmayer C; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Callahan DA; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Meezan NB; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Town RP; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Hamza A; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Dzenitis B; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Nikroo A; General Atomics, San Diego, California 92186, USA.
  • Moreno K; General Atomics, San Diego, California 92186, USA.
  • Van Wonterghem B; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Mackinnon AJ; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Glenzer SH; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • MacGowan BJ; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Kilkenny JD; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Edwards MJ; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Atherton LJ; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
  • Moses EI; Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, California 94550, USA.
Phys Rev Lett ; 111(23): 235001, 2013 Dec 06.
Article en En | MEDLINE | ID: mdl-24476279
ABSTRACT
On the National Ignition Facility, the hohlraum-driven implosion symmetry is tuned using cross-beam energy transfer (CBET) during peak power, which is controlled by applying a wavelength separation between cones of laser beams. In this Letter, we present early-time measurements of the instantaneous soft x-ray drive at the capsule using reemission spheres, which show that this wavelength separation also leads to significant CBET during the first shock, even though the laser intensities are 30× smaller than during the peak. We demonstrate that the resulting early drive P2/P0 asymmetry can be minimized and tuned to <1% accuracy (well within the ±7.5% requirement for ignition) by varying the relative input powers between different cones of beams. These experiments also provide time-resolved measurements of CBET during the first 2 ns of the laser drive, which are in good agreement with radiation-hydrodynamics calculations including a linear CBET model.
Buscar en Google
Añadir a Mi BVS
Imprimir
XML
PubMed Links

Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2013 Tipo del documento: Article País de afiliación: Estados Unidos
Buscar en Google
Añadir a Mi BVS
Imprimir
XML
PubMed Links

Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2013 Tipo del documento: Article País de afiliación: Estados Unidos