title: Density measurement of shock compressed foam using two-dimensional x-ray radiography.
abstract: We have used spherically bent quartz crystal to image a laser-generated shock in a foam medium. The foam targets had a density of 0.16 g/cm(3) and thickness of 150 microm, an aluminum/copper pusher drove the shock. The experiment was performed at the Titan facility at Lawrence Livermore National Laboratory using a 2 ns, 250 J laser pulse to compress the foam target, and a short pulse (10 ps, 350 J) to generate a bright Ti K alpha x-ray source at 4.5 keV to radiograph the shocked target. The crystal used gives a high resolution (approximately 20 microm) monochromatic image of the shock compressed foam.
authors.affiliation: Lawrence Livermore National Laboratory, 700 East Avenue, Livermore, California 94550, USA.
authors.forename: Sebastien
authors.initials: S
authors.lastname: Le Pape
authors.forename: Andrew
authors.initials: A
authors.lastname: Macphee
authors.forename: Daniel
authors.initials: D
authors.lastname: Hey
authors.forename: Pravesh
authors.initials: P
authors.lastname: Patel
authors.forename: Andrew
authors.initials: A
authors.lastname: Mackinnon
authors.forename: Mike
authors.initials: M
authors.lastname: Key
authors.forename: John
authors.initials: J
authors.lastname: Pasley
authors.forename: Mingsheng
authors.initials: M
authors.lastname: Wei
authors.forename: Sophia
authors.initials: S
authors.lastname: Chen
authors.forename: Tammy
authors.initials: T
authors.lastname: Ma
authors.forename: Farhat
authors.initials: F
authors.lastname: Beg
authors.forename: N
authors.initials: N
authors.lastname: Alexander
authors.forename: Rich
authors.initials: R
authors.lastname: Stephens
authors.forename: Dustin
authors.initials: D
authors.lastname: Offerman
authors.forename: A
authors.initials: A
authors.lastname: Link
authors.forename: Lynn
authors.initials: L
authors.lastname: Van-Woerkom
authors.forename: R
authors.initials: R
authors.lastname: Freeman