A line-imaging velocity interferometer system for any reflector (VISAR) is a widely used optical interferometric diagnostic for dynamic (e.g. shock) experiments. For opaque targets, VISAR is capable of determining shock speeds by detecting shock breakout times as a function of target thickness. In addition, free surface expansion velocities can be determined from measurement of the phase introduced in the probe beam due to the surface motion. The VISAR in the MEC station has spatial resolution of 10 µm and a temporal resolution of 10 ps, with time window ranging from 1 ns to 1 ms, a field of view of 1 mm, and a minimal velocity per fringe of 0.5 km/s/fringe.
SOLIDEDGE ID NO. DSG-000013713
