title: Direct density measurement of shock-compressed iron using hard x rays generated by a short laser pulse.
abstract: We present the application of short-pulse laser-driven hard x rays (>40 keV) for the direct density measurement of iron compressed by a laser-driven shock. By using an on-shot calibration of the spectral absorption, we are able to obtain line densities with 5%-10% precision, although the x-ray source is not monochromatic. We also discuss possibilities for increasing the precision, which would be an improvement for equation of state measurements.
authors.affiliation: LULI, Ecole Polytechnique, UPMC Université Paris 06, 91128 Palaiseau, France. erik.brambrink@polytechnique.edu
authors.forename: E
authors.initials: E
authors.lastname: Brambrink
authors.forename: H G
authors.initials: HG
authors.lastname: Wei
authors.forename: B
authors.initials: B
authors.lastname: Barbrel
authors.forename: P
authors.initials: P
authors.lastname: Audebert
authors.forename: A
authors.initials: A
authors.lastname: Benuzzi-Mounaix
authors.forename: T
authors.initials: T
authors.lastname: Boehly
authors.forename: T
authors.initials: T
authors.lastname: Endo
authors.forename: C D
authors.initials: CD
authors.lastname: Gregory
authors.forename: T
authors.initials: T
authors.lastname: Kimura
authors.forename: R
authors.initials: R
authors.lastname: Kodama
authors.forename: N
authors.initials: N
authors.lastname: Ozaki
authors.forename: H-S
authors.initials: HS
authors.lastname: Park
authors.forename: M
authors.initials: M
authors.lastname: Koenig