Hohlraum-driven mid-Z (SiO2) double-shell implosions on the omega laser facility and their scaling to NIF

High-convergence, hohlraum-driven implosions of double-shell capsules using mid-Z (SiO2) inner shells have been performed on the OMEGA laser facility [T. R. Boehly, Opt. Commun. 133, 495 (1997)]. These experiments provide an essential extension of the results of previous low-Z (CH) double-shell impl...

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Bibliographic Details
Published in:Physical review letters 2009-10, Vol.103 (14), p.145003-145003, Article 145003
Main Authors: Robey, H F, Amendt, P A, Milovich, J L, Park, H-S, Hamza, A V, Bono, M J
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CHALCOGENIDES
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COMPUTERIZED SIMULATION
CONVERGENCE
IMPLOSIONS
LASERS
OXIDES
OXYGEN COMPOUNDS
SILICON COMPOUNDS
SILICON OXIDES
SIMULATION
US NATIONAL IGNITION FACILITY
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Summary:High-convergence, hohlraum-driven implosions of double-shell capsules using mid-Z (SiO2) inner shells have been performed on the OMEGA laser facility [T. R. Boehly, Opt. Commun. 133, 495 (1997)]. These experiments provide an essential extension of the results of previous low-Z (CH) double-shell implosions [P. A. Amendt, Phys. Rev. Lett. 94, 065004 (2005)] to materials of higher density and atomic number. Analytic modeling, supported by highly resolved 2D numerical simulations, is used to account for the yield degradation due to interfacial atomic mixing. This extended experimental database from OMEGA enables a validation of the mix model, and provides a means for quantitatively assessing the prospects for high-Z double-shell implosions on the National Ignition Facility [Paisner, Laser Focus World 30, 75 (1994)].
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.103.145003