Study of Rayleigh–Taylor growth in laser irradiated planar SiO2 targets at ignition-relevant conditions

Hager, J. D.; Collins, T. B.; Smalyuk, V. A.; Knauer, J. P.; Meyerhofer, D. D.; Sangster, T. C.

doi:10.1063/1.4816032

Study of Rayleigh–Taylor growth in laser irradiated planar SiO₂ targets at ignition-relevant conditions

Journal Article · Mon Jul 01 04:00:00 EDT 2013 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4816032· OSTI ID:1140192

Hager, J. D. ^[1]; Collins, T. B.; Smalyuk, V. A.; Knauer, J. P.; Meyerhofer, D. D.; Sangster, T. C.

Laboratory for Laser Energetics, University of Rochester, Rochester, NY

Rayleigh–Taylor (RT) growth experiments were performed on the OMEGA laser [T. R. Boehly et al., Opt. Commun. 133, 495 (1997)] using planar SiO2 targets seeded with a single mode 60-um wavelength perturbation driven at peak laser intensities up to 9 x10^14 W/cm^2. These are the first RT measurements in SiO2 at conditions relevant to direct-drive inertial confinement fusion ignition. The measured average modulation growth rates agree with the 2-D hydrodynamics code DRACO, providing an important step in the development of target ablators that are robust to RT growth and hot- electron preheat considerations when driven at the intensities required to achieve thermonuclear ignition.

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

Sponsoring Organization:: USDOE

DOE Contract Number:: FC52-08NA28302

OSTI ID:: 1140192

Report Number(s):: DOE/NA/28302-1178; 2012-187; 2145

Journal Information:: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 7 Vol. 20; ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

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