Soft recovery technique to investigate dynamic fragmentation of laser shock-loaded metals

Journal Article · Mon Nov 23 00:00:00 EST 2009 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3268437· OSTI ID:21294472

Lescoute, E; De Resseguier, T; Boustie, M; Cuq-Lelandais, J -P ^[1]; Chevalier, J -M ^[2]; Berthe, L ^[3]

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1. Laboratoire de Combustion et de Detonique, UPR 9028 CNRS, ENSMA, 1 av. Clement Ader, 86961 Futuroscope Cedex (France)
2. CEA--CESTA, BP 2, 33114 Le Barp Cedex (France)
3. Procedes et Ingenierie en Mecanique et Materiaux, Arts et Metiers ParisTech, 151 Boulevard de l'Hopital 75013 Paris (France)

With the development of high energy laser facilities dedicated to inertial confinement fusion, the question of debris ejection from metallic shells subjected to intense laser irradiation has become a key issue. We have used two diagnostics to investigate fragmentation processes. Recovery of ejected fragments has been performed in a highly transparent gel of density 0.9 g/cm{sup 3}. Fragments sizes, shapes, and penetration depths, can be easily observed with a spatial resolution of micrometer-order. Complementary data are provided by transverse shadowgraphy which allows to obtain quasi-instantaneous, successive pictures of the debris clouds and mean ejection velocities.

• OSTI ID: 21294472
• Journal Information: Applied Physics Letters, Vol. 95, Issue 21; Other Information: DOI: 10.1063/1.3268437; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
FRAGMENTATION
GELS
GOLD
INERTIAL CONFINEMENT
LASER RADIATION
LASERS
PENETRATION DEPTH
PLASMA
SHOCK WAVES
SPATIAL RESOLUTION