Publications

Equation of state measurements in liquid deuterium to 100 GPa

Knudson, Marcus D.; Knudson, Marcus D.; Bailey, James E.; Lemke, Raymond W.; Desjarlais, Michael P.; Hall, Clint A.; Deeney, Christopher D.; Asay, James R.

Using intense magnetic pressure, a method was developed to launch flyer plates to velocities in excess of 20 km s{sup -1}. This technique was used to perform plate-impact, shock wave experiments on cryogenic liquid deuterium (LD{sub 2}) to examine its high-pressure equation of state (EOS). Using an impedance matching method, Hugoniot measurements were obtained in the pressure range of 22--100 GPa. The results of these experiments disagree with the previously reported Hugoniot measurements of LD2 in the pressure range above {approx}40 GPa, but are in good agreement with first principles, ab initio models for hydrogen and its isotopes.