Study of Rayleigh–Taylor growth in laser irradiated planar SiO{sub 2} targets at ignition-relevant conditions
- Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States)
- Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
Rayleigh–Taylor (RT) growth experiments were performed on the OMEGA laser [T. R. Boehly et al., Opt. Commun. 133, 495 (1997)] using planar SiO{sub 2} targets seeded with a single mode 60-μm wavelength perturbation driven at peak laser intensities up to 9 × 10{sup 14} W/cm{sup 2}. These are the first RT measurements in SiO{sub 2} 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.
- OSTI ID:
- 22227960
- Journal Information:
- Physics of Plasmas, Vol. 20, Issue 7; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
D CODES
DISTURBANCES
ELECTRONS
HYDRODYNAMICS
INERTIAL CONFINEMENT
IRRADIATION
LASER-PRODUCED PLASMA
MODULATION
NEODYMIUM LASERS
OMEGA FACILITY
PLASMA SIMULATION
RAYLEIGH-TAYLOR INSTABILITY
SILICON OXIDES
THERMONUCLEAR IGNITION
THERMONUCLEAR REACTORS
WAVELENGTHS
D CODES
DISTURBANCES
ELECTRONS
HYDRODYNAMICS
INERTIAL CONFINEMENT
IRRADIATION
LASER-PRODUCED PLASMA
MODULATION
NEODYMIUM LASERS
OMEGA FACILITY
PLASMA SIMULATION
RAYLEIGH-TAYLOR INSTABILITY
SILICON OXIDES
THERMONUCLEAR IGNITION
THERMONUCLEAR REACTORS
WAVELENGTHS