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Radiative reverse shock laser experiments relevant to accretion processes in cataclysmic variablesa)
a)Paper KI3 2, Bull. Am. Phys. Soc. , 198 (2012).
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Image of FIG. 1.
FIG. 1.

Full scale experimental target. Target perspective is such that the laser ablation spot cannot be seen. The acrylic face holding the CH/Sn foil is tilted into the page and surrounded by Au conical shielding. The end of the milled cylinder through which the Sn flows can be seen. Sn plasma flows down the cylindrical axis (shown by the dotted line) towards the Al obstacle. The pink dots are glue and the vertical rod is the stalk that holds the target.

Image of FIG. 2.
FIG. 2.

Orthogonal views of main target body, each of which is an x-ray radiography line of sight. The pink dots are glue. The conical shield is not shown.

Image of FIG. 3.
FIG. 3.

Schematic of target and x-ray backlighter paths, as viewed along the plasma flow axis. Simultaneous radiographs taken at 34 ns.

Image of FIG. 4.
FIG. 4.

Extracted density profiles from experimental radiographs for shock in Sn (black line) and Cu (red line). Dotted bounds of the same color show range of error associated with the large background and assumption of a monochromatic x-ray source.

Image of FIG. 5.
FIG. 5.

Radiograph at 40 ns of Cu flow shot.

Image of FIG. 6.
FIG. 6.

Density and temperature (ion [dotted] and electron [solid]) profiles at target radius of 120 m at same timestep of 2D CRASH simulations.


Generic image for table
Table I.

Main dimensionless numbers characterizing the hot spot regions and the laboratory plasma. The indices s, d, and ps correspond to stream, disk, and post-shocked plasma.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Radiative reverse shock laser experiments relevant to accretion processes in cataclysmic variablesa)