Mix Width Measurements of Accelerated Copper Foam

We present results from a mix experiment conducted on the OMEGA laser, where a reduced density copper (Cu) foam, 1 g/cc, was accelerated into a low density material, carbonized resorcinol formaldehyde (CRF) at 50 mg/cc. The Cu foams, which could contain voids as large as 5 to 10 $\mu$m, were characterized via x-ray computed tomography. The mixing in the experiment is predicted to rapidly become turbulent. The experiment addresses whether the mix width is determined by the void structure in the foam itself. For these experiments the OMEGA laser is used to drive a halfraum up to a radiation temperature of $\sim$ 190 eV using a 1 ns flat top drive with 5 kJ of total laser energy to provide the ablation pressure for the foam. This work was performed under the auspices of the U.S. Department of Energy by LLNL under Contract DE-AC52-07NA27344.