Precision equation-of-state measurements on National Ignition Facility ablator materials from 1 to 12 Mbar using laser-driven shock waves

Barrios, M. A.; Boehly, T. R.; Hicks, D. G.; Fratanduono, D. E.; Eggert, J. H.; Collins, G. W.; Meyerhofer, D. D.

doi:10.1063/1.4712050

Precision equation-of-state measurements on National Ignition Facility ablator materials from 1 to 12 Mbar using laser-driven shock waves

Journal Article · Mon May 07 00:00:00 EDT 2012 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4712050· OSTI ID:1043679

Barrios, M. A. ^[1]; Boehly, T. R. ^[2]; Hicks, D. G. ^[3]; Fratanduono, D. E. ^[2]; Eggert, J. H. ^[3]; Collins, G. W. ^[3]; Meyerhofer, D. D. ^[2]

University of Rochester 1 Laboratory for Laser Energetics, , 250 East River Road, Rochester, New York 14623-199, USA; Laboratory for Laser Energetics, University of Rochester, Rochester, NY
University of Rochester 1 Laboratory for Laser Energetics, , 250 East River Road, Rochester, New York 14623-199, USA
Lawrence Livermore National Laboratory 2 , Livermore, California 94550, USA

A large uncertainty in the design of ignition capsules for use in the National Ignition Campaign (NIC) is the ablator equation of state. In this article, we report equation-of-state measurements for two candidate NIC ablator materials, glow-discharge polymer (GDP), and germanium-doped GDP. These materials were driven to pressures of 1 to 12 Mbar using laser-driven shock waves. Hugoniot measurements were obtained using the impedance matching technique with an α-quartz standard. This article presents the first kinematic measurements in the high-pressure fluid regime for these materials, which show to be in close agreement with Livermore equation-of-state model predictions.

Research Organization:: Univ. of Rochester, NY (United States). Lab. for Laser Energetics

Sponsoring Organization:: USDOE

DOE Contract Number:: FC52-08NA28302

OSTI ID:: 1043679

Report Number(s):: DOE/NA/28302-1060; 2011-60; 2037

Journal Information:: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 9 Vol. 111; ISSN 0021-8979

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

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