Demonstration of Enhanced Radiation Drive in Hohlraums Made from a Mixture of High-Z Wall Materials

Journal Article · Fri Apr 27 00:00:00 EDT 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.98.175003· OSTI ID:20951278

Schein, Jochen; Jones, Ogden; Rosen, Mordecai; Dewald, Eduard; Glenzer, Siegfried; Gunther, Janelle; Hammel, Bruce; Landen, Otto; Suter, Laurence; Wallace, Russell ^[1]

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1. Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550 (United States)

We present results from experiments, numerical simulations and analytic modeling, demonstrating enhanced hohlraum performance. Care in the fabrication and handling of hohlraums with walls consisting of high-Z mixtures (cocktails) has led to our demonstration, for the first time, of a significant increase in radiation temperature compared to a pure Au hohlraum that is in agreement with predictions and is ascribable to reduced wall losses. The data suggest that a National Ignition Facility ignition hohlraum made of a U:Au:Dy cocktail should have {approx}17% reduction in wall losses compared to a similar gold hohlraum.

• OSTI ID: 20951278
• Journal Information: Physical Review Letters, Vol. 98, Issue 17; Other Information: DOI: 10.1103/PhysRevLett.98.175003; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DYSPROSIUM
FABRICATION
GOLD
MIXTURES
SIMULATION
THERMONUCLEAR IGNITION
URANIUM
US NATIONAL IGNITION FACILITY
WALLS