A Combined Measurement with Pyrometer and VISAR

Combined measurement with two or three different diagnostic systems in one shock-wave experiment, which could provide more information on high-pressure physical properties of materials and help people better understanding the nature of these properties, is the inexorable trend for the development of the shock-wave experimental technique. A combined diagnostic technique with multi-channel pyrometer and VISAR was primarily developed in two-stage light gas gun experiments. In one experiment, we successfully obtained spectral radiance histories and particle velocity profiles of LiTaO3 sample by this technique, which indicated shock-induced luminescence and shock-induced phase transformation of LiTaO3. The results show that combined measurement with pyrometer and VISAR is practicable for our shock-wave experiment.