Time-resolved two-band infrared radiometry of carbon tetrachloride under shock compression up to 10 GPa

Time-resolved two-band infrared radiometers were constructed for measuring temperatures of carbon tetrachloride under shock compression. Radiance histories were observed with about 10 ns time resolution in two slightly overlapping bands, approximately 7–9.5 and 9–12 μm, for shock pressures from 3.3 to 9.4 GPa. The experimentally obtained temperatures (680–1370 K) were consistent with the results of theoretical calculations using equation-of-state data below 7 GPa and suggested the chemical reaction of CCl4 at 7.5 GPa.