Measurement of Feedthrough and Instability Growth in Radiation-Driven Cylindrical Implosions

Journal Article · Thu May 01 04:00:00 EDT 1997 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.78.3876· OSTI ID:503731

Hsing, W W; Hoffman, N M ^[1]

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1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

We have performed the first radiation-driven implosions in a convergent geometry where feedthrough of the Rayleigh-Taylor instability and Bell-Plesset growth are observed. A perturbation in a dodecagon shape was machined on the outer surface of a cylindrical polystyrene shell. The shell was imploded by radiation ablation in a hohlraum at the Nova laser. Growth of the perturbation was observed at the inner surface of the shell via x-ray backlighter imaging. This method shows promise for the study of instability growth and feedthrough in converging flows. {copyright} {ital 1997} {ital The American Physical Society}

• Research Organization: Los Alamos National Laboratory
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 503731
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 20 Vol. 78; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ABLATION
CONVERGENCE
GROWTH
INDIRECT DRIVE LASER IMPLOSION
INERTIAL CONFINEMENT
RADIATIONS
RAYLEIGH-TAYLOR INSTABILITY
X RADIATION