Publications

High accuracy Hugoniot measurements at multi-megabar pressure utilizing the Sandia Z accelerator

Alexander, Charles S.; Knudson, Marcus D.; Hall, Clint A.

The Hugoniot response of materials is centrally important in the field of high pressure science. Highly accurate Hugoniot measurements not only provide better material references but also allow for the detection of subtle material phenomena. A process has been developed utilizing the Sandia Z accelerator to measure Hugoniot response at multi-megabar pressure resulting in extremely high accuracy data. Key considerations are the use of large surface area flyer plates allowing measurement configurations with multiple targets and diagnostics. This allows for greatly reduced uncertainty in the data. The details of this process are given and each aspect is closely examined focusing on the individual contributions to the overall accuracy of the result. © 2010 IOP Publishing Ltd.