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Note: Radiochemical measurement of fuel and ablator areal densities in cryogenic implosions at the National Ignition Facility.
Hagmann, C; Shaughnessy, D A; Moody, K J; Grant, P M; Gharibyan, N; Gostic, J M; Wooddy, P T; Torretto, P C; Bandong, B B; Bionta, R; Cerjan, C J; Bernstein, L A; Caggiano, J A; Herrmann, H W; Knauer, J P; Sayre, D B; Schneider, D H; Henry, E A; Fortner, R J.
Afiliação
  • Hagmann C; Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA.
  • Shaughnessy DA; Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA.
  • Moody KJ; Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA.
  • Grant PM; Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA.
  • Gharibyan N; Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA.
  • Gostic JM; Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA.
  • Wooddy PT; Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA.
  • Torretto PC; Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA.
  • Bandong BB; Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA.
  • Bionta R; Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA.
  • Cerjan CJ; Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA.
  • Bernstein LA; Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA.
  • Caggiano JA; Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA.
  • Herrmann HW; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Knauer JP; Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
  • Sayre DB; Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA.
  • Schneider DH; Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA.
  • Henry EA; Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA.
  • Fortner RJ; Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USA.
Rev Sci Instrum ; 86(7): 076105, 2015 Jul.
Article em En | MEDLINE | ID: mdl-26233419
ABSTRACT
A new radiochemical method for determining deuterium-tritium (DT) fuel and plastic ablator (CH) areal densities (ρR) in high-convergence, cryogenic inertial confinement fusion implosions at the National Ignition Facility is described. It is based on measuring the (198)Au/(196)Au activation ratio using the collected post-shot debris of the Au hohlraum. The Au ratio combined with the independently measured neutron down scatter ratio uniquely determines the areal densities ρR(DT) and ρR(CH) during burn in the context of a simple 1-dimensional capsule model. The results show larger than expected ρR(CH) values, hinting at the presence of cold fuel-ablator mix.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2015 Tipo de documento: Article
Texto completo
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2015 Tipo de documento: Article