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Shock Hugoniot and temperature data for polystyrene obtained with quartz standard
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Image of FIG. 1.
FIG. 1.

(a) Experimental setup. (b) The top is shock velocity in both and CH from experiment (closed circles). The bottom shows corresponding raw VISAR image. (c) The top is self-emission intensity in both and CH. The bottom shows corresponding raw SOP image.

Image of FIG. 2.
FIG. 2.

The impedance mismatching in the plane. Dotted-dashed and dotted lines are the Hugoniot and release isentrope of from its shocked state (closed diamond), respectively. The straight line is the CH Rayleigh line defined by measured . Intersections of the isentrope and the Rayleigh line are experimental CH data (closed circle). Data from time-resolved measurements (closed circle) are compared to from time-averaged (open circles labeled by and ). The solid and long-dashed curves show theoretical Hugoniots for CH (Refs. 27 and 28). The inset is a magnified view around the intersection of the Rayleigh line of CH with the RI and IH of , which provided the Hugoniot data with uncertainties obtained in this work. The dashed–double-dotted line in the inset shows the IH for .

Image of FIG. 3.
FIG. 3.

CH Hugoniot data. (a) The Hugoniot presented as vs . Also shown are the SESAME tabular EOS (Ref. 27) (solid line); original QEOS (Ref. 28) (dotted); modified QEOS (Ref. 34) (dashed); Ree’s model (Ref. 35) (dotted-dashed). (b) The Hugoniot with same symbols as in (a).


Generic image for table
Table I.

Polystyrene Hugoniot results from impedance mismatching to a quartz standard. and are the measured shock velocities in -quartz and CH with measurement errors. , , and are the particle velocity, pressure, and density of shock compressed CH inferred from impedance-matching calculations. The errors come from measurement uncertainties in and . The RI and IH with these parameters indicate that release isentrope and inverted Hugoniot are used to determine the Hugoniot point, respectively.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Shock Hugoniot and temperature data for polystyrene obtained with quartz standard