Diagnosis of pusher-fuel mix in indirectly driven Nova implosions

We report measurements of controlled implosion performance degradation arising from the Rayleigh-Taylor instabiity in inertial confinement fusion capsules. Using plastic capsules driven indirectly by the Nova laser we studied the variation in implosion performance as a function of outer surface pert...

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Bibliographic Details
Published in:Physical review letters 1994-10, Vol.73 (17), p.2324-2327
Main Authors: Dittrich, TR, Hammel, BA, Keane, CJ, McEachern, R, Turner, RE, Haan, SW, Suter, LJ
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700411 > Inertial Confinement Devices-- (1992-)
CONFINEMENT
DATA
EMISSION
EXPERIMENTAL DATA
IMPLOSIONS
INERTIAL CONFINEMENT
INFORMATION
INSTABILITY
INSTABILITY GROWTH RATES
IRRADIATION CAPSULES
LASER IMPLOSIONS
MATERIALS
MATHEMATICAL MODELS
MIXING
NEUTRON EMISSION
NOVA FACILITY
NUCLEAR REACTIONS
NUCLEOSYNTHESIS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASMA
PLASMA CONFINEMENT
PLASMA DIAGNOSTICS
PLASTICS
POLYMERS
RAYLEIGH-TAYLOR INSTABILITY
SATURATION
SPECTRA
SYNTHESIS
SYNTHETIC MATERIALS 700320 > Plasma Diagnostic Techniques & Instrumentation-- (1992-)
THERMONUCLEAR REACTIONS
X-RAY SPECTRA
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Description
Summary:We report measurements of controlled implosion performance degradation arising from the Rayleigh-Taylor instabiity in inertial confinement fusion capsules. Using plastic capsules driven indirectly by the Nova laser we studied the variation in implosion performance as a function of outer surface perturbation. Variations in both capsule x-ray and neutron emission are seen which are consistent with a model which describes mixing of pusher material into fuel material. The model combines representative capsule surface characterization, implosion stability, and perturbation growth saturation.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.73.2324