Study of Rayleigh-Taylor growth in directly driven cryogenic-deuterium targets

Journal Article · Sun Jul 15 04:00:00 EDT 2012 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4739061· OSTI ID:22085920

Hager, J D; Hu, S X; Knauer, J P; Meyerhofer, D D; Sangster, T C ^[1]; Smalyuk, V A ^[2]

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1. Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States)
2. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

Direct-drive, Rayleigh-Taylor growth experiments in liquid deuterium (D{sub 2}) were performed on the OMEGA laser [T. R. Boehly et al., Opt. Commun. 133, 495 (1997)] using planar cryogenic targets at a laser intensity of {approx}4 Multiplication-Sign 10{sup 14} W/cm{sup 2}. These are the first Rayleigh-Taylor measurements in deuterium at conditions relevant to inertial confinement fusion using a mass preimposed initial modulation. The measured modulation optical depths are in agreement with the 2D hydrodynamics code DRACO using flux-limited local thermal transport, providing an important step in the experimental validation of simulations for direct-drive ignition.

• OSTI ID: 22085920
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 7 Vol. 19; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CRYOGENICS
DEUTERIUM TARGET
HYDRODYNAMIC MODEL
INERTIAL CONFINEMENT
LASERS
MODULATION
RAYLEIGH-TAYLOR INSTABILITY
THERMONUCLEAR IGNITION