Equation of state measurements in liquid deuterium to 70 GPa.
Using intense magnetic pressure, a method was developed to launch flyer plates to velocities in excess of 20 km/s. This technique was used to perform plate-impact, shock wave experiments on cryogenic liquid deuterium ( L-D(2)) to examine its high-pressure equation of state. Using an impedance matching method, Hugoniot measurements were obtained in the pressure range of 30-70 GPa. The results of these experiments disagree with previously reported Hugoniot measurements of L-D(2) in the pressure range above approximately 40 GPa, but are in good agreement with first principles, ab initio models for hydrogen and its isotopes.
Knudson
M D
MD
Sandia National Laboratories, Albuquerque, New Mexico 87185-1181, USA.
Hanson
D L
DL
Bailey
J E
JE
Hall
C A
CA
Asay
J R
JR
Anderson
W W
WW