Three-dimensional modeling of capsule implosions in OMEGA tetrahedral hohlraums

Journal Article · Sat Jul 01 04:00:00 EDT 2000 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.874148· OSTI ID:20216871

Schnittman, J D ^[1]; Craxton, R S ^[1]

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1. Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States)

Tetrahedral hohlraums have been proposed as a means for achieving the highly uniform implosions needed for ignition with inertial confinement fusion (ICF) [J. D. Schnittman and R. S. Craxton, Phys. Plasmas 3, 3786 (1996)]. Recent experiments on the OMEGA laser system have achieved good drive uniformity consistent with theoretical predictions [J. M. Wallace et al., Phys. Rev. Lett. 82, 3807 (1999)]. To better understand these experiments and future investigations of high-convergence ICF implosions, the three-dimensional (3-D) view-factor code BUTTERCUP has been expanded to model the time-dependent radiation transport in the hohlraum and the hydrodynamic implosion of the capsule. Additionally, a 3-D postprocessor has been written to simulate x-ray images of the imploded core. Despite BUTTERCUP's relative simplicity, its predictions for radiation drive temperatures, fusion yields, and core deformation show close agreement with experiment. (c) 2000 American Institute of Physics.

• OSTI ID: 20216871
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 7 Vol. 7; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CHARGED-PARTICLE TRANSPORT
DEFORMATION
IMPLOSIONS
INERTIAL CONFINEMENT
LASER TARGETS
MATHEMATICAL MODELS
OMEGA FACILITY
PLASMA SIMULATION
THEORETICAL DATA
THREE-DIMENSIONAL CALCULATIONS