Temperature Measurements of Single and Double Shock Compressed Liquid Nitrogen in Overtaking Shock Wave Configuration

In the present work the results of experiments on multiple shock compression of liquid nitrogen are presented. It was suggested to use two step compression waves to determine temperature of double compressed nitrogen not using window material. The proposed method can be used to determine optical densities of shock compressed material and phase‐transformation boundaries with high accuracy. The abnormal speed of the secondary compression wave was registered after single compression to 40 GPa in nitrogen. The transport cross section of the electron‐ion interaction in shock‐compressed liquid nitrogen was estimated.