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Prospects for achieving high dynamic compression with low energy
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10.1063/1.4751107
/content/aip/journal/apl/101/10/10.1063/1.4751107
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/10/10.1063/1.4751107
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

A cross-sectional schematic of a spherical dynamic compression experiment from the side, with radius of curvature of the compression front, r, transverse radius, R, and the propagation distance of the compression front over the duration of the experiment, . The compression front and piston/sample interface propagate to the right, and the compression front has speedv. We assume the piston instantaneously jumps to a radial, constant particle velocity at t = 0, so that  = v tc.

Image of FIG. 2.
FIG. 2.

The results of a 2D hydrodynamics simulation of the wave evolution for multiple shock wave compression of cryogenic liquid deuterium from 20 K initial temperature with a radially symmetric Gaussian particle speed distribution with a full width half maximum of 90 μm. Particle speed distributions for different times (as labeled) along the axis of symmetry are shown. Vertical black lines in the main plot show the piston position and are labeled by the time for each plot. Density is labeled for each step on the right side axis. The shock fronts are designed to converge at a single depth. The piston speed as a function of time along the axis of symmetry is shown in the inset. The final temperature from the simulations is ∼3600 K, whereas the temperature of shock loaded deuterium at the same final pressure (∼135 GPa, also from simulations) is >30 000 K.

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/content/aip/journal/apl/101/10/10.1063/1.4751107
2012-09-05
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Prospects for achieving high dynamic compression with low energy
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/10/10.1063/1.4751107
10.1063/1.4751107
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