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Shock dynamics induced by double-spot laser irradiation of layered targets

Aliverdiev A. A., Batani D., Amirova A. A., Benocci R., Dezulian R., Krouský E., Pfeifer M., Skala J., Dudzak R., Jakubowska K.

Nukleonika

2015

Vol. 60, No. 2

213--219

We studied the interaction of a double-spot laser beam with targets using the Prague Asterix Laser System (PALS) iodine laser working at 0.44 μm wavelength and intensity of about 1015 W/cm2. Shock breakout signals were recorder using time-resolved self-emission from target rear side of irradiated targets. We compared the behavior of pure Al targets and of targets with a foam layer on the laser side. Results have been simulated using hydrodynamic numerical codes.

Carbon equation of state at high pressure: the role of the radiative transport in the impedance mismatch diagnostics

Aliverdiev A. A., Batani D., Dezulian R., Vinci T.

Nukleonika

2011

Vol. 56, No. 2

165-169

A series of numerical simulation was performed on the application of the impedance mismatch technique to the experimental study of the equation of state (EOS) of porous carbon. Our conclusion is that this technique is useful for such a study up to laser intensities of the order of 1014 W/cm2 (in second or third harmonic of the Nd-laser). However, the inclusion of the radiation transport is important for the correct description of the shock propagation and can affect the results.