Fig. 1: Example of an experimental output for shot A-49.
From: Electrical conductivity of warm dense silica from double-shock experiments
Timings t1, t2, t3, t3b and t4 represent the arrival time of the first shock into the sample, the arrival of the second shock into the sample, the catch-up time of the first shock by the second one, the catch-up time of the elastic precursor by the merged shock and the exit time from the sample of the merged shock. a Output image example of the 1064 nm VISAR; yellow (blue) indicates high (low) reflectivity in arbitrary units. b Output image example of the SOP; yellow (blue) indicates high (low) emission arbitrary units. c Time profile of the measured material velocity \({U}_{\,\text{p}\,}^{1}\) after the first shock (t1 - t2), of the second shock velocity (t2 - t3), and of the merged shock velocity \({U}_{\,\text{s}}^{\text{m}\,}\) (t3b - t4). \({U}_{\,\text{s}}^{\text{m}\,}\) is not shown between t3 and t3b since this time interval is too short for its precise determination from the VISAR signal. However, this measurement is not necessary for the determination of the thermodynamic state loaded by the merged shock. d Time profile of the measured SOP counts.
