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Laser-launched flyer plates for shock physics experiments
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10.1063/1.2052593
/content/aip/journal/rsi/76/9/10.1063/1.2052593
http://aip.metastore.ingenta.com/content/aip/journal/rsi/76/9/10.1063/1.2052593

Figures

Image of FIG. 1.
FIG. 1.

Schematic of flyer impact experiments.

Image of FIG. 2.
FIG. 2.

Detail of coatings between substrate and flyer.

Image of FIG. 3.
FIG. 3.

Example temporal history of laser pulse. The pulse shape was reproducible.

Image of FIG. 4.
FIG. 4.

Example of acceleration and displacement history (shot 14 119: Cu flyer, 10 J drive).

Image of FIG. 5.
FIG. 5.

Velocity history for Cu flyers.

Image of FIG. 6.
FIG. 6.

Line VISAR record for shot 14 119. Fringes are displaced spatially as the flyer accelerates: the displacement is proportional to the speed. The field of view was 4 mm, centered on the center of the flyer. The flyer diameter was 5 mm.

Image of FIG. 7.
FIG. 7.

Variation of flyer kinetic energy with specific laser energy measured against flyer mass.

Image of FIG. 8.
FIG. 8.

Acceleration history, predicted with heat source applied uniformly over working fluid.

Image of FIG. 9.
FIG. 9.

Pressure history in working fluid, predicted with heat source applied uniformly over working fluid.

Image of FIG. 10.
FIG. 10.

Temperature history in working fluid, predicted with heat source applied uniformly over working fluid. (Central group from bottom to top: , 10 J; , 11 J; , 11 J.)

Image of FIG. 11.
FIG. 11.

Idealized velocity history for flyer acceleration and impact, based on flyer.

Image of FIG. 12.
FIG. 12.

Comparison between ideal velocity history and typical record (shot 14 140). The deviation between the records following the first reverberation after impact was caused by optical damage to the window.

Image of FIG. 13.
FIG. 13.

Flyer Hugoniot points compared with Hugoniot from published equation of state. The Marsh points lying well below the curve are for porous samples.

Image of FIG. 14.
FIG. 14.

Flyer Hugoniot points compared with published experimental data.

Tables

Generic image for table
Table I.

Acceleration experiments with Cu flyers.

Generic image for table
Table II.

Cu impact experiments.

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/content/aip/journal/rsi/76/9/10.1063/1.2052593
2005-09-19
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Laser-launched flyer plates for shock physics experiments
http://aip.metastore.ingenta.com/content/aip/journal/rsi/76/9/10.1063/1.2052593
10.1063/1.2052593
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