The Experimental Technology for Shock-Compressed Liquid Gas

The technology of shock-compression of liquid gas is reported in this paper. The liquid sample, which is refrigerated by liquid nitrogen, were shocked from initial states at 0.807 g/cm3 and 0.808 g/cm3 for CO and N2, respectively, to pressure range of 10～57 GPa using a two-stage light-gas gun. The shock velocity vs mass velocity for liquid nitrogen and liquid carbon monoxide were measured, and electrical conductivity for liquid nitrogen were measured too. The engineering problems about how to combine the cryogenic system with the sample target, the inner target-chamber and its outer, the cryogenic-target and measuring-detectors et al, are discussed. In addition, the problems of measuring and controlling of the temperature of cryogenic-target, and hw to determine the liquid is or not full filled in the sample cavity are also discussed.