Observation of the stabilizing effect of a laminated ablator on the ablative Rayleigh-Taylor instability

Journal Article · Sun May 15 00:00:00 EDT 2011 · Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics (Print)

DOI:https://doi.org/10.1103/PHYSREVE.83.055401· OSTI ID:21560286

Masse, L; Casner, A; Galmiche, D; Huser, G; Liberatore, S; Theobald, M ^[1]

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1. CEA, DAM, DIF, F-91297 Arpajon (France)

A laminated ablator is explored as an alternative concept for stabilizing the ablative Rayleigh-Taylor instability which develops in inertial fusion targets. Experiments measuring the growth of the Rayleigh-Taylor instability of laminated planar foils are reported. Consistent with both theory and simulations, a significant reduction of the perturbation growth is experimentally observed for laminated ablators in comparison to what is observed for classical uniform ablators. Such an enhanced hydrodynamic stability opens opportunities for the design of high-gain inertial fusion targets.

• OSTI ID: 21560286
• Journal Information: Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics (Print), Vol. 83, Issue 5; Other Information: DOI: 10.1103/PhysRevE.83.055401; (c) 2011 American Institute of Physics; ISSN 1539-3755
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMPARATIVE EVALUATIONS
DISTURBANCES
FOILS
GAIN
ICF DEVICES
INERTIAL CONFINEMENT
INERTIAL FUSION DRIVERS
RAYLEIGH-TAYLOR INSTABILITY
SIMULATION
AMPLIFICATION
CONFINEMENT
EVALUATION
INSTABILITY
PLASMA CONFINEMENT
THERMONUCLEAR DEVICES